Merge pull request #4642 from xiaoxiaohuixxh/juicevm-port

Juicevm port
2021-04-27 10:08:51 +08:00 · 2021-04-27 10:08:51 +08:00 · 01050e5e54
parent d7c70443e6 a87e33db3f
commit 01050e5e54
27 changed files with 1902 additions and 0 deletions
--- a/bsp/juicevm/.config
+++ b/bsp/juicevm/.config
@ -0,0 +1,441 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# RT-Thread Project Configuration
+#
+
+#
+# RT-Thread Kernel
+#
+CONFIG_RT_NAME_MAX=8
+# CONFIG_RT_USING_SMP is not set
+CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
+CONFIG_RT_THREAD_PRIORITY_MAX=32
+CONFIG_RT_TICK_PER_SECOND=100
+CONFIG_RT_USING_OVERFLOW_CHECK=y
+CONFIG_RT_USING_HOOK=y
+CONFIG_RT_USING_IDLE_HOOK=y
+CONFIG_RT_IDLE_HOOK_LIST_SIZE=4
+CONFIG_IDLE_THREAD_STACK_SIZE=1024
+# CONFIG_RT_USING_TIMER_SOFT is not set
+CONFIG_RT_DEBUG=y
+CONFIG_RT_DEBUG_COLOR=y
+# CONFIG_RT_DEBUG_INIT_CONFIG is not set
+# CONFIG_RT_DEBUG_THREAD_CONFIG is not set
+# CONFIG_RT_DEBUG_SCHEDULER_CONFIG is not set
+# CONFIG_RT_DEBUG_IPC_CONFIG is not set
+# CONFIG_RT_DEBUG_TIMER_CONFIG is not set
+# CONFIG_RT_DEBUG_IRQ_CONFIG is not set
+# CONFIG_RT_DEBUG_MEM_CONFIG is not set
+# CONFIG_RT_DEBUG_SLAB_CONFIG is not set
+# CONFIG_RT_DEBUG_MEMHEAP_CONFIG is not set
+# CONFIG_RT_DEBUG_MODULE_CONFIG is not set
+
+#
+# Inter-Thread communication
+#
+CONFIG_RT_USING_SEMAPHORE=y
+CONFIG_RT_USING_MUTEX=y
+CONFIG_RT_USING_EVENT=y
+CONFIG_RT_USING_MAILBOX=y
+CONFIG_RT_USING_MESSAGEQUEUE=y
+# CONFIG_RT_USING_SIGNALS is not set
+
+#
+# Memory Management
+#
+CONFIG_RT_USING_MEMPOOL=y
+# CONFIG_RT_USING_MEMHEAP is not set
+# CONFIG_RT_USING_NOHEAP is not set
+CONFIG_RT_USING_SMALL_MEM=y
+# CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_MEMTRACE is not set
+CONFIG_RT_USING_HEAP=y
+
+#
+# Kernel Device Object
+#
+CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_DEVICE_OPS is not set
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
+CONFIG_RT_USING_CONSOLE=y
+CONFIG_RT_CONSOLEBUF_SIZE=128
+CONFIG_RT_CONSOLE_DEVICE_NAME="uart0"
+CONFIG_RT_VER_NUM=0x40000
+CONFIG_ARCH_RISCV=y
+# CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
+
+#
+# RT-Thread Components
+#
+CONFIG_RT_USING_COMPONENTS_INIT=y
+CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
+CONFIG_RT_MAIN_THREAD_PRIORITY=10
+
+#
+# C++ features
+#
+# CONFIG_RT_USING_CPLUSPLUS is not set
+
+#
+# Command shell
+#
+CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
+CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
+CONFIG_FINSH_USING_SYMTAB=y
+CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
+CONFIG_FINSH_THREAD_PRIORITY=20
+CONFIG_FINSH_THREAD_STACK_SIZE=4096
+CONFIG_FINSH_CMD_SIZE=80
+# CONFIG_FINSH_USING_AUTH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+CONFIG_FINSH_USING_MSH_ONLY=y
+CONFIG_FINSH_ARG_MAX=10
+
+#
+# Device virtual file system
+#
+# CONFIG_RT_USING_DFS is not set
+# CONFIG_DFS_USING_WORKDIR is not set
+# CONFIG_DFS_FILESYSTEMS_MAX is not set
+# CONFIG_DFS_FILESYSTEM_TYPES_MAX is not set
+# CONFIG_DFS_FD_MAX is not set
+# CONFIG_RT_USING_DFS_MNTTABLE is not set
+# CONFIG_RT_USING_DFS_ELMFAT is not set
+
+#
+# elm-chan's FatFs, Generic FAT Filesystem Module
+#
+# CONFIG_RT_DFS_ELM_CODE_PAGE is not set
+# CONFIG_RT_DFS_ELM_WORD_ACCESS is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_0 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_1 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_2 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_3=y
+# CONFIG_RT_DFS_ELM_USE_LFN=3
+# CONFIG_RT_DFS_ELM_MAX_LFN=255
+# CONFIG_RT_DFS_ELM_DRIVES=2
+# CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=512
+# CONFIG_RT_DFS_ELM_USE_ERASE is not set
+# CONFIG_RT_DFS_ELM_REENTRANT=y
+# CONFIG_RT_USING_DFS_DEVFS=y
+# CONFIG_RT_USING_DFS_ROMFS is not set
+# CONFIG_RT_USING_DFS_RAMFS is not set
+# CONFIG_RT_USING_DFS_UFFS is not set
+# CONFIG_RT_USING_DFS_JFFS2 is not set
+
+#
+# Device Drivers
+#
+CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_PIPE_BUFSZ=512
+CONFIG_RT_USING_SERIAL=y
+CONFIG_RT_SERIAL_USING_DMA=y
+# CONFIG_RT_USING_CAN is not set
+# CONFIG_RT_USING_HWTIMER is not set
+# CONFIG_RT_USING_CPUTIME is not set
+# CONFIG_RT_USING_I2C is not set
+# CONFIG_RT_USING_PIN is not set
+# CONFIG_RT_USING_ADC is not set
+# CONFIG_RT_USING_PWM is not set
+# CONFIG_RT_USING_MTD_NOR is not set
+# CONFIG_RT_USING_MTD_NAND is not set
+# CONFIG_RT_USING_MTD is not set
+# CONFIG_RT_USING_PM is not set
+# CONFIG_RT_USING_RTC is not set
+# CONFIG_RT_USING_SOFT_RTC is not set
+# CONFIG_RT_USING_SDIO is not set
+# CONFIG_RT_USING_SPI is not set
+# CONFIG_RT_USING_WDT is not set
+# CONFIG_RT_USING_AUDIO is not set
+
+#
+# Using WiFi
+#
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
+# CONFIG_RT_USING_USB_HOST is not set
+# CONFIG_RT_USING_USB_DEVICE is not set
+
+#
+# POSIX layer and C standard library
+#
+CONFIG_RT_USING_LIBC=y
+# CONFIG_RT_USING_PTHREADS is not set
+# CONFIG_RT_USING_POSIX=y
+# CONFIG_RT_USING_POSIX_MMAP is not set
+# CONFIG_RT_USING_POSIX_TERMIOS is not set
+# CONFIG_RT_USING_POSIX_AIO is not set
+# CONFIG_RT_USING_MODULE is not set
+
+#
+# Network
+#
+
+#
+# Socket abstraction layer
+#
+# CONFIG_RT_USING_SAL is not set
+
+#
+# light weight TCP/IP stack
+#
+# CONFIG_RT_USING_LWIP is not set
+
+#
+# Modbus master and slave stack
+#
+# CONFIG_RT_USING_MODBUS is not set
+
+#
+# AT commands
+#
+# CONFIG_RT_USING_AT is not set
+
+#
+# VBUS(Virtual Software BUS)
+#
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_LOGTRACE is not set
+# CONFIG_RT_USING_RYM is not set
+CONFIG_RT_USING_ULOG=y
+# CONFIG_ULOG_OUTPUT_LVL_A is not set
+# CONFIG_ULOG_OUTPUT_LVL_E is not set
+# CONFIG_ULOG_OUTPUT_LVL_W is not set
+# CONFIG_ULOG_OUTPUT_LVL_I is not set
+CONFIG_ULOG_OUTPUT_LVL_D=y
+CONFIG_ULOG_OUTPUT_LVL=7
+CONFIG_ULOG_USING_ISR_LOG=y
+CONFIG_ULOG_ASSERT_ENABLE=y
+CONFIG_ULOG_LINE_BUF_SIZE=128
+# CONFIG_ULOG_USING_ASYNC_OUTPUT is not set
+
+#
+# log format
+#
+# CONFIG_ULOG_OUTPUT_FLOAT is not set
+CONFIG_ULOG_USING_COLOR=y
+CONFIG_ULOG_OUTPUT_TIME=y
+# CONFIG_ULOG_TIME_USING_TIMESTAMP is not set
+CONFIG_ULOG_OUTPUT_LEVEL=y
+CONFIG_ULOG_OUTPUT_TAG=y
+# CONFIG_ULOG_OUTPUT_THREAD_NAME is not set
+CONFIG_ULOG_BACKEND_USING_CONSOLE=y
+# CONFIG_ULOG_USING_FILTER is not set
+# CONFIG_ULOG_USING_SYSLOG is not set
+CONFIG_ULOG_SW_VERSION_NUM=0x00101
+
+#
+# RT-Thread online packages
+#
+
+#
+# IoT - internet of things
+#
+# CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_WEBCLIENT is not set
+# CONFIG_PKG_USING_WEBNET is not set
+# CONFIG_PKG_USING_MONGOOSE is not set
+# CONFIG_PKG_USING_WEBTERMINAL is not set
+# CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_JSMN is not set
+# CONFIG_PKG_USING_LJSON is not set
+# CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+
+#
+# Wi-Fi
+#
+
+#
+# Marvell WiFi
+#
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+# CONFIG_PKG_USING_NETUTILS is not set
+# CONFIG_PKG_USING_AT_DEVICE is not set
+# CONFIG_PKG_USING_WIZNET is not set
+
+#
+# IoT Cloud
+#
+# CONFIG_PKG_USING_ONENET is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+# CONFIG_PKG_USING_ALI_IOTKIT is not set
+# CONFIG_PKG_USING_AZURE is not set
+# CONFIG_PKG_USING_TENCENT_IOTKIT is not set
+
+#
+# security packages
+#
+# CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
+
+#
+# language packages
+#
+# CONFIG_PKG_USING_LUA is not set
+# CONFIG_PKG_USING_JERRYSCRIPT is not set
+CONFIG_PKG_USING_MICROPYTHON=y
+CONFIG_PKG_MICROPYTHON_PATH="/packages/language/micropython"
+
+#
+# Hardware Module
+#
+# CONFIG_MICROPYTHON_USING_MACHINE_I2C is not set
+# CONFIG_MICROPYTHON_USING_MACHINE_SPI is not set
+CONFIG_MICROPYTHON_USING_MACHINE_UART=y
+
+#
+# System Module
+#
+CONFIG_MICROPYTHON_USING_UOS=y
+CONFIG_MICROPYTHON_USING_THREAD=y
+# CONFIG_MICROPYTHON_USING_USELECT is not set
+# CONFIG_MICROPYTHON_USING_UCTYPES is not set
+# CONFIG_MICROPYTHON_USING_UERRNO is not set
+
+#
+# Tools Module
+#
+# CONFIG_MICROPYTHON_USING_CMATH is not set
+# CONFIG_MICROPYTHON_USING_UBINASCII is not set
+# CONFIG_MICROPYTHON_USING_UHASHLIB is not set
+# CONFIG_MICROPYTHON_USING_UHEAPQ is not set
+CONFIG_MICROPYTHON_USING_UJSON=y
+# CONFIG_MICROPYTHON_USING_URE is not set
+# CONFIG_MICROPYTHON_USING_UZLIB is not set
+# CONFIG_MICROPYTHON_USING_URANDOM is not set
+
+#
+# Network Module
+#
+# CONFIG_MICROPYTHON_USING_USOCKET is not set
+# CONFIG_MICROPYTHON_USING_USSL is not set
+CONFIG_PKG_MICROPYTHON_HEAP_SIZE=8192
+CONFIG_PKG_USING_MICROPYTHON_LATEST_VERSION=y
+# CONFIG_PKG_USING_MICROPYTHON_V10903 is not set
+CONFIG_PKG_MICROPYTHON_VER="latest"
+
+#
+# multimedia packages
+#
+# CONFIG_PKG_USING_OPENMV is not set
+# CONFIG_PKG_USING_MUPDF is not set
+
+#
+# tools packages
+#
+# CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
+# CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+# CONFIG_PKG_USING_RDB is not set
+# CONFIG_PKG_USING_QRCODE is not set
+# CONFIG_PKG_USING_ULOG_EASYFLASH is not set
+
+#
+# system packages
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_CAIRO is not set
+# CONFIG_PKG_USING_PIXMAN is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+# CONFIG_PKG_USING_FAL is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+# CONFIG_PKG_USING_CMSIS is not set
+# CONFIG_PKG_USING_DFS_YAFFS is not set
+# CONFIG_PKG_USING_LITTLEFS is not set
+
+#
+# peripheral libraries and drivers
+#
+# CONFIG_PKG_USING_REALTEK_AMEBA is not set
+# CONFIG_PKG_USING_SHT2X is not set
+# CONFIG_PKG_USING_AHT10 is not set
+# CONFIG_PKG_USING_AP3216C is not set
+# CONFIG_PKG_USING_STM32_SDIO is not set
+# CONFIG_PKG_USING_ICM20608 is not set
+# CONFIG_PKG_USING_U8G2 is not set
+# CONFIG_PKG_USING_BUTTON is not set
+# CONFIG_PKG_USING_MPU6XXX is not set
+# CONFIG_PKG_USING_PCF8574 is not set
+# CONFIG_PKG_USING_KENDRYTE_SDK is not set
+
+#
+# miscellaneous packages
+#
+# CONFIG_PKG_USING_LIBCSV is not set
+# CONFIG_PKG_USING_OPTPARSE is not set
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+# CONFIG_PKG_USING_ZLIB is not set
+# CONFIG_PKG_USING_DSTR is not set
+# CONFIG_PKG_USING_TINYFRAME is not set
+
+#
+# sample package
+#
+
+#
+# samples: kernel and components samples
+#
+# CONFIG_PKG_USING_KERNEL_SAMPLES is not set
+# CONFIG_PKG_USING_FILESYSTEM_SAMPLES is not set
+# CONFIG_PKG_USING_NETWORK_SAMPLES is not set
+# CONFIG_PKG_USING_PERIPHERAL_SAMPLES is not set
+
+#
+# example package: hello
+#
+# CONFIG_PKG_USING_HELLO is not set
+
+#
+# Privated Packages of RealThread
+#
+# CONFIG_PKG_USING_CODEC is not set
+# CONFIG_PKG_USING_PLAYER is not set
+# CONFIG_PKG_USING_PERSIMMON_SRC is not set
+# CONFIG_PKG_USING_JS_PERSIMMON is not set
+# CONFIG_PKG_USING_JERRYSCRIPT_WIN32 is not set
+
+#
+# Network Utilities
+#
+# CONFIG_PKG_USING_WICED is not set
+# CONFIG_PKG_USING_CLOUDSDK is not set
+# CONFIG_PKG_USING_COREMARK is not set
+# CONFIG_PKG_USING_POWER_MANAGER is not set
+# CONFIG_PKG_USING_RT_OTA is not set
+# CONFIG_PKG_USING_RDBD_SRC is not set
+# CONFIG_PKG_USING_RTINSIGHT is not set
+# CONFIG_PKG_USING_SMARTCONFIG is not set
+# CONFIG_PKG_USING_RTX is not set
+
--- a/bsp/juicevm/Kconfig
+++ b/bsp/juicevm/Kconfig
@ -0,0 +1,32 @@
+mainmenu "RT-Thread Project Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../../.."
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+
+config SOC_JUICEVM_RV64
+    bool
+    select ARCH_RISCV
+
+config BOARD_RV64_FRDM_JUICEVM
+    bool
+    select SOC_JUICEVM_RV64
+    select RT_USING_COMPONENTS_INIT
+    select RT_USING_USER_MAIN
+    default y
+
+source "driver/Kconfig"
--- a/bsp/juicevm/README.md
+++ b/bsp/juicevm/README.md
@ -0,0 +1,162 @@
+# JuiceVm 虚拟机 BSP 说明
+
+标签： Risc-V 64bit ima、JuiceVm
+
+---
+
+## 简介
+
+本文档为 JuiceVm 开发团队为 JuiceVm 虚拟机提供的 BSP (板级支持包) 说明。
+
+主要内容如下：
+
+- 开发板资源介绍
+- BSP 快速上手
+- 进阶使用方法
+
+通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+
+## 虚拟机介绍
+
+JuiceVm 虚拟机是 juice 开发的一款 Risc-V 64bit ima 虚拟机，Risc-V 64bit 虚拟机界面如下图所示：
+
+![开发板外观](static/juicevm_rtt.jpg)
+
+该虚拟机常用**资源**如下：
+
+- MCU：Risc-V 64bit ima，300MB RAM，支持M-MODE,S-MODE,
+- 常用外设
+  - UART0
+- 常用接口：UART
+- 调试接口: 标准 GDB 【TODO】
+
+更多详细信息请参考【Juice】[JuiceVm 虚拟机](https://whycan.com/t_5844.html)。
+
+## 外设支持
+
+本 BSP 目前对外设的支持情况如下：
+
+|**片上外设**     |**支持情况**|**备注**                             |
+| :----------------- | :----------: | :-----------------------------------|
+| GPIO              |   暂不支持   | 即将支持                              |
+| MMU(SV39)         |   暂不支持   | 即将支持                              |
+| UART              |     支持     | UART0                                |
+| SDIO              |   暂不支持   | 即将支持                              |
+| RTC               |   暂不支持   | 即将支持                              |
+| PWM               |   暂不支持   | 即将支持                              |
+| USB Device        |   暂不支持   | 即将支持                              |
+| USB Host          |   暂不支持   | 即将支持                              |
+
+## 使用说明
+
+使用说明分为如下两个章节：
+
+- 快速上手
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+- 进阶使用
+
+    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+
+### 快速上手
+
+本 BSP 为开发者提供 GCC 开发环境。下面以 GCC 开发环境为例，介绍如何将系统运行起来。
+
+#### 编译下载
+##### toolchain 下载
+- 到 xpack-dev-tools 下载 [点击跳转](https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack/releases/tag/v8.3.0-2.1)
+  ```
+  wget https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack/releases/download/v8.3.0-2.1/xpack-riscv-none-embed-gcc-8.3.0-2.1-linux-x64.tar.gz 
+  ```
+- 解压到/opt目录下 
+  ```
+  tar vxf xpack-riscv-none-embed-gcc-8.3.0-2.1-linux-x64.tar.gz -C /opt
+  ```
+- 到rt-thread/bsp/juicevm目录下执行
+ ```
+ scons
+ ```
+- 下载 JuiceVm
+浏览器打开：
+https://whycan.com/files/members/1390/juice_vm_release_for_Linux_57ba985a.zip
+
+- 运行固件
+  ./juice_vm_for_Linux.out -a -g ./rtthread.bin
+
+#### 运行结果
+
+在console可以看到 RT-Thread 的输出信息:
+
+```c
+global_vm_log_init output_mode_sel: 0  JUICE_VM_LOG_MAX_NUM:600
+      gg ,ggg,         gg      ,a8a,     ,gggg,   ,ggggggg, ,ggg,         ,g,ggg, ,ggg,_,ggg,  
+     dP8dP  Y8a        88     ,8   8,  ,88   Y8b,dP      Y8dP  Y8a       ,8dP  Y8dP  Y88P  Y8b 
+    dP YYb, `88        88     d8   8b d8      `Yd8'    a  YYb, `88       d8Yb, `88'  `88'  `88 
+   ,8  `8`   88        88     88   88d8'   8b  d88      Y8P'`   88       88 `   88    88    88 
+   I8   Yb   88        88     88   8,8I     Y88P`8baaaa         88       88     88    88    88 
+   `8b, `8,  88        88     Y8   8I8'        ,d8P             I8       8I     88    88    88 
+    ` Y88888 88        88     `8, ,8d8         d8               `8,     ,8'     88    88    88 
+         Y8  88        888888   8,8 Y8,        Y8,               Y8,   ,8P      88    88    88 
+         ,88,Y8b,____,d88`8b,  ,d8b,`Yba,,_____`Yba,,_____,       Yb,_,dP       88    88    Y8,
+     ,ad88888  Y888888P Y8  Y88P   Y8 ` Y8888888 ` Y8888888         Y8P         88    88    `Y8
+   ,dP '   Yb                                                                                  
+  ,8'      I8                                                                                  
+ ,8'       I8                                                                                  
+ I8,      ,8'                                                                                  
+ `Y8,___,d8'                                                                                   
+    Y888P                                                                                      
+ email:                                                                       juicemail@163.com
+version:57ba985a 57ba985a Fri, 23 Apr 2021 17:22:20 +0800 xiaoxiaohuixxh feat(Rt-thread): uart port pass
+firm_addr:./rtthread.bin
+fd = 3
+file_size = 44872
+interrupt_vertor_register_mag_init
+rv_csr_register_init
+csr_addr_misa 8000000000040101
+csr_addr_mvendorid 0000000000000000
+csr_addr_marchid 0000000000000000
+csr_addr_mimpid 0000000000000000
+csr_addr_mhartid 0000000000000000
+rv_peripheral_device_init
+[rv64_sim][dev][mmu]rv.c(5593):rv_peripheral_device_mmu_init,Sv39 mode support only
+[rv64_sim][dev][mtime]rv.c(5252):rv_peripheral_device_mtime_init
+[rv64_sim][dev][mtime]rv.c(5271):pdev_mtime_irq_info 0x7f334d2d0910 92c00003 92c00007
+[rv64_sim][dev][mtime]rv.c(5277):pdev_mtime_irq_info_smode 0x7f334d2d0900 92c00003 92c00007
+[rv64_sim][dev][uart0]rv.c(5061):rv_peripheral_device_uart0_init
+[rv64_sim][dev][uart0]rv.c(5077):pdev_uart0_irq_info 0x7f334d2d08f0
+rv sim start...loading
+cpu run...
+heap: [0x8000cb60 - 0x92c00000]
+
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.0.3 build Apr 26 2021
+ 2006 - 2021 Copyright by rt-thread team
+Hello RT-Thread!
+msh >
+```
+
+### 进阶使用
+
+此 BSP 默认只开启了 UART0 的功能和直接运行功能
+如果需使用更多功能，可以执行
+```
+./juice_vm_for_Linux.out
+```
+查看相关帮助信息开启调试和实时汇编输出功能
+## 注意事项
+
+编译参数请使用rv64ima,暂不支持Risc-V的c模块
+
+## 维护人信息
+
+- [Juice](https://github.com/xiaoxiaohuixxh)
+- [邮箱](juicemail@163.com)
+
+## 参考资料
+
+* [RT-Thread 文档中心](https://www.rt-thread.org/document/site/)
+
+* [JuiceVm 虚拟机更新发布页](https://whycan.com/t_5844.html)
+
--- a/bsp/juicevm/SConscript
+++ b/bsp/juicevm/SConscript
@ -0,0 +1,14 @@
+# for module compiling
+import os
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
--- a/bsp/juicevm/SConstruct
+++ b/bsp/juicevm/SConstruct
@ -0,0 +1,36 @@
+import os
+import sys
+import rtconfig
+
+from rtconfig import RTT_ROOT
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from building import *
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+    CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+    CXX = rtconfig.CXX, CXXFLAGS = rtconfig.CXXFLAGS,
+    AR = rtconfig.AR, ARFLAGS = '-rc',
+    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+env['ASCOM'] = env['ASPPCOM']
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu = False)
+
+stack_size = 4096
+
+stack_lds = open('link_stacksize.lds', 'w')
+if GetDepend('__STACKSIZE__'): stack_size = GetDepend('__STACKSIZE__')
+stack_lds.write('__STACKSIZE__ = %d;' % stack_size)
+stack_lds.close()
+
+# make a building
+DoBuilding(TARGET, objs)
--- a/bsp/juicevm/applications/SConscript
+++ b/bsp/juicevm/applications/SConscript
@ -0,0 +1,9 @@
+from building import *
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [cwd]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
--- a/bsp/juicevm/applications/main.c
+++ b/bsp/juicevm/applications/main.c
@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/26     Juice      The first version
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <rtthread.h>
+
+int main(int argc, char **argv)
+{
+    rt_kprintf("Hello RT-Thread!\n");
+
+    return 0;
+}
--- a/bsp/juicevm/board/SConscript
+++ b/bsp/juicevm/board/SConscript
@ -0,0 +1,13 @@
+# RT-Thread building script for component
+
+from building import *
+
+cwd     = GetCurrentDir()
+src     = Split('''
+board.c
+''')
+CPPPATH = [cwd]
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
--- a/bsp/juicevm/board/board.c
+++ b/bsp/juicevm/board/board.c
@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/22     Juice        the first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#include "board.h"
+#include "drv_uart.h"
+
+void rt_hw_board_init(void)
+{
+
+    /* initialize hardware interrupt */
+    rt_hw_uart_init();
+    // rt_hw_systick_init();
+
+#ifdef RT_USING_CONSOLE
+    /* set console device */
+    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif /* RT_USING_CONSOLE */
+
+#ifdef RT_USING_HEAP
+    rt_kprintf("heap: [0x%08x - 0x%08x]\n", (rt_ubase_t) RT_HW_HEAP_BEGIN, (rt_ubase_t) RT_HW_HEAP_END);
+    /* initialize memory system */
+    rt_system_heap_init(RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
+#endif
+
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
+#endif
+}
--- a/bsp/juicevm/board/board.h
+++ b/bsp/juicevm/board/board.h
@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-04-24      Juice      the first version
+ */
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include <stdint.h>
+
+extern unsigned int __bss_start;
+extern unsigned int __bss_end;
+
+#define RT_HW_HEAP_BEGIN    (void*)&__bss_end
+#define RT_HW_HEAP_END      (void*)(0x80000000 + 300 * 1024 * 1024)
+
+void rt_hw_board_init(void);
+
+#endif
--- a/bsp/juicevm/driver/Kconfig
+++ b/bsp/juicevm/driver/Kconfig
@ -0,0 +1,3 @@
+config BSP_USING_UART0
+    bool "Enable UART0"
+    default y
--- a/bsp/juicevm/driver/SConscript
+++ b/bsp/juicevm/driver/SConscript
@ -0,0 +1,13 @@
+# RT-Thread building script for component
+
+from building import *
+
+cwd     = GetCurrentDir()
+src     = Split('''
+drv_uart.c
+''')
+CPPPATH = [cwd]
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
--- a/bsp/juicevm/driver/drv_uart.c
+++ b/bsp/juicevm/driver/drv_uart.c
@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author            Notes
+ * 2021/04/22     Juice           Add UART0 support for JuiceVm.
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#include "board.h"
+#include "drv_uart.h"
+
+#include "rv_mtvec_map.h"
+
+struct rt_serial_device *serial;
+char *device_name = "uart0";
+
+static rt_err_t  uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg);
+static rt_err_t  uart_control(struct rt_serial_device *serial, int cmd, void *arg);
+static int       uart_putc(struct rt_serial_device *serial, char c);
+static int       uart_getc(struct rt_serial_device *serial);
+static rt_size_t uart_dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction);
+
+void UART0_DriverIRQHandler(void);
+
+const struct rt_uart_ops _uart_ops =
+{
+    uart_configure,
+    uart_control,
+    uart_putc,
+    uart_getc,
+    uart_dma_transmit
+};
+
+static void uart_isr(struct rt_serial_device *serial);
+
+#if defined(BSP_USING_UART0)
+struct rt_serial_device serial0;
+
+void UART0_DriverIRQHandler(void)
+{
+    uart_isr(&serial0);
+}
+#endif
+
+
+
+/*
+ * UART Initiation
+ */
+int rt_hw_uart_init(void)
+{
+    int i;
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+    serial = &serial0;
+    serial->ops    = &_uart_ops;
+    serial->config = config;
+
+    /* register UART device */
+    rt_hw_serial_register(serial,
+                          device_name,
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          (void *)0);
+
+    return 0;
+}
+
+/*
+ * UART interface
+ */
+static rt_err_t uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+
+    return RT_EOK;
+}
+
+static rt_err_t uart_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    RT_ASSERT(serial != RT_NULL);
+
+    return RT_EOK;
+}
+
+static int uart_putc(struct rt_serial_device *serial, char c)
+{
+
+    RT_ASSERT(serial != RT_NULL);
+
+    *((char *)(pdev_uart0_write_addr)) = c;
+
+    return (1);
+}
+
+static int uart_getc(struct rt_serial_device *serial)
+{
+    int ch;
+
+    RT_ASSERT(serial != RT_NULL);
+
+    ch = -1;
+
+    if (*(char *)(pdev_uart0_state_addr) == pdev_uart0_readbusy_state)
+    {
+        ch = *(char *)(pdev_uart0_read_addr);
+        *(char *)(pdev_uart0_state_addr) = pdev_uart0_free_state;
+    }
+    return ch;
+}
+
+static rt_size_t uart_dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction)
+{
+    return (0);
+}
+
+/* UART ISR */
+/**
+ * Uart common interrupt process. This need add to uart ISR.
+ *
+ * @param serial serial device
+ */
+static void uart_isr(struct rt_serial_device *serial)
+{
+    RT_ASSERT(serial != RT_NULL);
+
+    if (*(char *)(pdev_uart0_state_addr) == pdev_uart0_readbusy_state)
+    {
+        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
+    }
+}
--- a/bsp/juicevm/driver/drv_uart.h
+++ b/bsp/juicevm/driver/drv_uart.h
@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
+#ifndef __DRV_UART_H__
+#define __DRV_UART_H__
+
+int rt_hw_uart_init(void);
+
+#endif /* __DRV_UART_H__ */
--- a/bsp/juicevm/juicevm_sdk/SConscript
+++ b/bsp/juicevm/juicevm_sdk/SConscript
@ -0,0 +1,22 @@
+# RT-Thread building script for component
+
+from building import *
+
+cwd     = GetCurrentDir()
+src     = Split('''
+system.c
+''')
+CPPPATH = [cwd]
+
+
+group = DefineGroup('JuiceVm_sdk', src, depend = [''], CPPPATH = CPPPATH)
+
+objs = [group]
+
+list = os.listdir(cwd)
+
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        objs = objs + SConscript(os.path.join(item, 'SConscript'))
+
+Return('objs')
--- a/bsp/juicevm/juicevm_sdk/rv_config.h
+++ b/bsp/juicevm/juicevm_sdk/rv_config.h
@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2006-2021, JuiceVm Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/22     Juice        the first version
+ */
+
+
+#ifndef __RV_CONFIG_H__
+#define __RV_CONFIG_H__
+
+#define RV64I_SUPPORT_ENBALE
+#define RV64_MMU_ENBALE            1
+
+#define RV_ENDLESS_LOOP_CHECK_ENBALE            1
+#if defined(RV_ENDLESS_LOOP_CHECK_ENBALE) && RV_ENDLESS_LOOP_CHECK_ENBALE == 1
+    #define RV_ENDLESS_LOOP_CHECK_BUF_SIZE          (30)
+    #define RV_ENDLESS_LOOP_CHECK_EXIT_CNT          (3)
+    #define RV_ENDLESS_LOOP_CHECK_MD5_HASH          1
+#endif
+
+// #define RISCV_ANGEL_ONLY
+#define Machine_Mode_SUPPORT
+#define Supervisor_Mode_SUPPORT
+// #define User_Mode_SUPPORT
+// #define Hypervisor_Mode_SUPPORT
+
+#define ATOMIC_Module_SUPPORT
+
+#define RV_CPU_CSR_DEF_Vendor_ID    0
+#define RV_CPU_CSR_DEF_March_ID     0
+#define RV_CPU_CSR_DEF_Mimp_ID      0
+#define RV_CPU_CSR_DEF_Mhart_ID     0
+
+#define JUICE_VM_LOG_MAX_NUM        (600)
+
+#define JUICE_VM_INC_CHANGELOG      0
+
+#define RAM_SIZE_KB                 (1024)
+#define RAM_SIZE_MB                 (1024*RAM_SIZE_KB)
+
+#define RV_CPU_SIM_RAM_START_ADDR   (0x80000000)
+#define RV_CPU_SIM_RAM_SIZE         (300 * RAM_SIZE_MB)
+
+#define RV_CPU_SIM_CAUSETABLE_MAX_NUM    100//MXLEN-1 bit
+
+#define RV_CPU_SIM_PERDEV_NUM       50
+#define rv_peripheral_device_add_check_dev    1
+
+// | MXLEN-1          MXLEN-2 | MXLEN-3       26| 25                     0 |
+// |      MXL[1:0](WARL)      |       WLRL      | Extensions[25:0] (WARL)  |
+// |     2                    |     MXLEN-28    |           26             |
+//                  Figure 3.1: Machine ISA register (misa).
+
+
+
+// Bit | Character | Description
+// 0   |    A      |   Atomic extension
+// 1   |    B      |   Tentatively reserved for Bit-Manipulation extension
+// 2   |    C      |   Compressed extension
+// 3   |    D      |   Double-precision floating-point extension
+// 4   |    E      |   RV32E base ISA
+// 5   |    F      |   Single-precision floating-point extension
+// 6   |    G      |   Reserved
+// 7   |    H      |   Hypervisor extension
+// 8   |    I      |   RV32I/64I/128I base ISA
+// 9   |    J      |   Tentatively reserved for Dynamically Translated Languages extension
+// 10  |    K      |   Reserved
+// 11  |    L      |   Tentatively reserved for Decimal Floating-Point extension
+// 12  |    M      |   Integer Multiply/Divide extension
+// 13  |    N      |   User-level interrupts supported
+// 14  |    O      |   Reserved
+// 15  |    P      |   Tentatively reserved for Packed-SIMD extension
+// 16  |    Q      |   Quad-precision floating-point extension
+// 17  |    R      |   Reserved
+// 18  |    S      |   Supervisor mode implemented
+// 19  |    T      |   Tentatively reserved for Transactional Memory extension
+// 20  |    U      |   User mode implemented
+// 21  |    V      |   Tentatively reserved for Vector extension
+// 22  |    W      |   Reserved
+// 23  |    X      |   Non-standard extensions present
+// 24  |    Y      |   Reserved
+// 25  |    Z      |   Reserved
+#define RV_MISA_ATOMIC_EXT         (1<<0)
+#define RV_MISA_INTEGER_EXT        (1<<8)
+#define RV_MISA_UMODE_INT_EXT      (1<<13)
+#define RV_MISA_SMODE_IMP_EXT      (1<<18)
+#define RV_MISA_UMODE_IMP_EXT      (1<<20)
+
+// | MXL |  XLEN  |
+// | 1   |   32   |
+// | 2   |   64   |
+// | 3   |   128  |
+#define RV_MISA_XLEN_32            (1<<(32-2))
+#define RV_MISA_XLEN_64            (uint64_t)((uint64_t)(2)<<(64-2))
+// #define RV_MISA_XLEN_128           ((uint128_t)(3)<<(128-2))
+
+
+
+#define RV_MISA_CSR_REGISTER       ((uint64_t)(RV_MISA_XLEN_64 | RV_MISA_ATOMIC_EXT | RV_MISA_INTEGER_EXT /*| RV_MISA_UMODE_INT_EXT*/ | RV_MISA_SMODE_IMP_EXT /*| RV_MISA_UMODE_IMP_EXT*/))
+
+
+#endif // __RV_CONFIG_H__
--- a/bsp/juicevm/juicevm_sdk/rv_mtvec_map.h
+++ b/bsp/juicevm/juicevm_sdk/rv_mtvec_map.h
@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2006-2021, JuiceVm Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/22     Juice        the first version
+ */
+#ifndef __RV_MTVEC_MAP_H__
+#define __RV_MTVEC_MAP_H__
+#include "rv_config.h"
+
+#define rv_sim_pdev_base_addr           (RV_CPU_SIM_RAM_START_ADDR+RV_CPU_SIM_RAM_SIZE)
+#define rv_sim_pdev_uart0_base_addr     (rv_sim_pdev_base_addr)
+#define pdev_uart0_write_addr     (rv_sim_pdev_uart0_base_addr)
+#define pdev_uart0_read_addr      (rv_sim_pdev_uart0_base_addr+1)
+#define pdev_uart0_free_state      0x00
+#define pdev_uart0_readbusy_state      0x01
+#define pdev_uart0_state_addr      (rv_sim_pdev_uart0_base_addr+2)
+
+#define rv_sim_pdev_mtime_base_addr     (rv_sim_pdev_base_addr+3)
+#define pdev_mtime_mtime_addr           (rv_sim_pdev_mtime_base_addr)
+#define pdev_mtime_mtimecmp_addr        (rv_sim_pdev_mtime_base_addr+4)
+
+#define uart0_irq_flag        0
+#define uart0_irq_ecode       24
+
+#define RV_exception_Instruction_address_misaligned_IFLAG                         0
+#define RV_exception_Instruction_address_misaligned_ECODE                         0
+#define RV_exception_Instruction_access_fault_IFLAG                               0
+#define RV_exception_Instruction_access_fault_ECODE                               1
+#define RV_exception_Illegal_Instruction_IFLAG                          0
+#define RV_exception_Illegal_Instruction_ECODE                          2
+#define RV_exception_Breakpoint_IFLAG                                   0
+#define RV_exception_Breakpoint_ECODE                                   3
+#define RV_exception_LoadAddress_Misaligned_IFLAG                       0
+#define RV_exception_LoadAddress_Misaligned_ECODE                       4
+#define RV_exception_Load_access_fault_IFLAG                            0
+#define RV_exception_Load_access_fault_ECODE                            5
+
+#define RV_exception_Store_or_AMO_Address_Misaligned_IFLAG              0
+#define RV_exception_Store_or_AMO_Address_Misaligned_ECODE              6
+
+#define RV_exception_Store_or_AMO_access_fault_IFLAG                    0
+#define RV_exception_Store_or_AMO_access_fault_ECODE                    7
+
+#define RV_exception_Environment_call_from_Umode_IFLAG                  0
+#define RV_exception_Environment_call_from_Umode_ECODE                  8
+
+#define RV_exception_Environment_call_from_Smode_IFLAG                  0
+#define RV_exception_Environment_call_from_Smode_ECODE                  9
+
+#define RV_exception_Environment_Call_FromMachine_IFLAG                 0
+#define RV_exception_Environment_Call_FromMachine_ECODE                 11
+
+#define RV_exception_FloatingPoint_Disabled_IFLAG
+#define RV_exception_FloatingPoint_Disabled_ECODE
+
+#define RV_exception_Instruction_page_fault_IFLAG                       0
+#define RV_exception_Instruction_page_fault_ECODE                       12
+#define RV_exception_Load_page_fault_IFLAG                              0
+#define RV_exception_Load_page_fault_ECODE                              13
+
+#define RV_exception_Store_or_AMO_page_fault_IFLAG                       0
+#define RV_exception_Store_or_AMO_page_fault_ECODE                      15
+
+
+// Interrupt Exception Code Description
+// 1 0  Reserved
+// 1 1  Supervisor software interrupt       not support
+// 1 2  Reserved
+// 1 3  Machine software interrupt          not support
+// 1 4  Reserved
+// 1 5  Supervisor timer interrupt          not support
+// 1 6  Reserved
+// 1 7  Machine timer interrupt             support
+// 1 8  Reserved
+// 1 9  Supervisor external interrupt       not support
+// 1 10 Reserved
+// 1 11 Machine external interrupt          not support
+// 1 12 Reserved
+// 1 13 Reserved
+// 1 14 Reserved
+// 1 15 Reserved
+// // 1 ≥16 Designated for platform use
+// 0 0 Instruction address misaligned       not support
+// 0 1 Instruction access fault             not support
+// 0 2 Illegal instruction                  support
+// 0 3 Breakpoint                           support
+// 0 4 Load address misaligned              support
+// 0 5 Load access fault                    not support
+// 0 6 Store/AMO address misaligned         support
+// 0 7 Store/AMO access fault               not support
+// 0 8 Environment call from U-mode         not support
+// 0 9 Environment call from S-mode         not support
+// 0 10 Reserved
+// 0 11 Environment call from M-mode        support
+// 0 12 Instruction page fault              not support
+// 0 13 Load page fault                     not support
+// 0 14 Reserved
+// 0 15 Store/AMO page fault                not support
+// 0 16-23 Reserved
+// // 0 24–31 Designated for custom use
+// 0 32-47 Reserved
+// // 0 48–63 Designated for custom use
+// 0 ≥64 Reserved
+
+
+// #define mtime_irq_flag        1
+// #define mtime_irq_ecode       7
+
+#define RV_Supervisor_software_interrupt_IFLAG                           1
+#define RV_Supervisor_software_interrupt_ECODE                           1
+
+#define RV_Machine_software_interrupt_IFLAG                              1
+#define RV_Machine_software_interrupt_ECODE                              3
+
+#define RV_Supervisor_timer_interrupt_IFLAG                              1
+#define RV_Supervisor_timer_interrupt_ECODE                              5
+
+#define RV_Machine_timer_interrupt_IFLAG                                 1
+#define RV_Machine_timer_interrupt_ECODE                                 7
+
+#define RV_Supervisor_external_interrupt_IFLAG                           1
+#define RV_Supervisor_external_interrupt_ECODE                           9
+
+#define RV_Machine_external_interrupt_IFLAG                              1
+#define RV_Machine_external_interrupt_ECODE                             10
+
+#endif // __RV_MTVEC_MAP_H__
--- a/bsp/juicevm/juicevm_sdk/system.c
+++ b/bsp/juicevm/juicevm_sdk/system.c
@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author            Notes
+ * 2021/04/22     Juice             Add isrtable for JuiceVm.
+ */
+typedef void (*irq_handler_t)(void);
+// #define DEFINE_IRQ_HANDLER(irq_handler, driver_irq_handler) \
+//     void __attribute__((weak)) irq_handler(void) { driver_irq_handler();}
+
+// #define DEFINE_DEFAULT_IRQ_HANDLER(irq_handler) void irq_handler() __attribute__((weak, alias("DefaultIRQHandler")))
+
+// DEFINE_IRQ_HANDLER(UART0_IRQHandler, UART0_DriverIRQHandler);
+extern void UART0_DriverIRQHandler(void);
+
+const irq_handler_t isrTable[] =
+{
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    UART0_DriverIRQHandler, // uart0_irq_ecode = 24
+
+};
--- a/bsp/juicevm/link.lds
+++ b/bsp/juicevm/link.lds
@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
+INCLUDE "link_stacksize.lds"
+
+/*
+ * The OUTPUT_ARCH command specifies the machine architecture where the
+ * argument is one of the names used in the Kendryte library.
+ */
+OUTPUT_ARCH( "riscv" )
+
+MEMORY
+{
+   /* 300M SRAM */
+   SRAM : ORIGIN = 0x80000000, LENGTH = 0x12c00000
+}
+
+ENTRY(_start)
+SECTIONS
+{
+    . = 0x80000000 ;
+
+    /* __STACKSIZE__ = 4096; */
+
+    .start :
+    {
+        *(.start);
+    } > SRAM
+
+    . = ALIGN(8);
+
+    .text : 
+    {
+        *(.text)                        /* remaining code */
+        *(.text.*)                      /* remaining code */
+        *(.rodata)                      /* read-only data (constants) */
+        *(.rodata*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.gnu.linkonce.t*)
+     
+        /* section information for finsh shell */
+        . = ALIGN(8);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+        . = ALIGN(8);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+        . = ALIGN(8);
+
+        /* section information for initial. */
+        . = ALIGN(8);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+        . = ALIGN(8);
+
+        __rt_utest_tc_tab_start = .;
+        KEEP(*(UtestTcTab))
+        __rt_utest_tc_tab_end = .;
+
+        . = ALIGN(8);
+        _etext = .;
+    } > SRAM
+
+    .eh_frame_hdr : 
+    { 
+         *(.eh_frame_hdr) 
+         *(.eh_frame_entry)
+    } > SRAM
+    .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } > SRAM
+
+    . = ALIGN(8);
+
+    .data : 
+    {
+        *(.data)
+        *(.data.*)
+    
+        *(.data1)
+        *(.data1.*)
+
+        . = ALIGN(8);
+        PROVIDE( __global_pointer$ = . + 0x800 );
+
+        *(.sdata)
+        *(.sdata.*)
+    } > SRAM
+
+    /* stack for dual core */
+    .stack :
+    {
+        . = ALIGN(64);
+        __stack_start__ = .;
+
+        . += __STACKSIZE__;
+        __stack = .;
+    } > SRAM
+
+    .sbss : 
+    {
+    __bss_start = .;
+        *(.sbss)
+        *(.sbss.*)
+        *(.dynsbss)
+        *(.scommon)
+    } > SRAM
+
+    .bss :
+    {
+        *(.bss)
+        *(.bss.*)
+        *(.dynbss)
+        *(COMMON)
+    __bss_end = .;
+    } > SRAM
+
+    _end = .;
+
+    /* Stabs debugging sections.  */
+    .stab          0 : { *(.stab) }
+    .stabstr       0 : { *(.stabstr) }
+    .stab.excl     0 : { *(.stab.excl) }
+    .stab.exclstr  0 : { *(.stab.exclstr) }
+    .stab.index    0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment       0 : { *(.comment) }
+    /* DWARF debug sections.
+     * Symbols in the DWARF debugging sections are relative to the beginning
+     * of the section so we begin them at 0.  */
+    /* DWARF 1 */
+    .debug          0 : { *(.debug) }
+    .line           0 : { *(.line) }
+    /* GNU DWARF 1 extensions */
+    .debug_srcinfo  0 : { *(.debug_srcinfo) }
+    .debug_sfnames  0 : { *(.debug_sfnames) }
+    /* DWARF 1.1 and DWARF 2 */
+    .debug_aranges  0 : { *(.debug_aranges) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    /* DWARF 2 */
+    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+    .debug_abbrev   0 : { *(.debug_abbrev) }
+    .debug_line     0 : { *(.debug_line) }
+    .debug_frame    0 : { *(.debug_frame) }
+    .debug_str      0 : { *(.debug_str) }
+    .debug_loc      0 : { *(.debug_loc) }
+    .debug_macinfo  0 : { *(.debug_macinfo) }
+    /* SGI/MIPS DWARF 2 extensions */
+    .debug_weaknames 0 : { *(.debug_weaknames) }
+    .debug_funcnames 0 : { *(.debug_funcnames) }
+    .debug_typenames 0 : { *(.debug_typenames) }
+    .debug_varnames  0 : { *(.debug_varnames) }
+}
--- a/bsp/juicevm/link_stacksize.lds
+++ b/bsp/juicevm/link_stacksize.lds
@ -0,0 +1 @@
+__STACKSIZE__ = 4096;
--- a/bsp/juicevm/rtconfig.h
+++ b/bsp/juicevm/rtconfig.h
@ -0,0 +1,218 @@
+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Project Configuration */
+
+/* RT-Thread Kernel */
+
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 4
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 100
+#define RT_USING_OVERFLOW_CHECK
+#define RT_USING_HOOK
+#define RT_USING_IDLE_HOOK
+#define RT_IDLE_HOOK_LIST_SIZE 4
+#define IDLE_THREAD_STACK_SIZE 1024
+#define RT_DEBUG
+#define RT_DEBUG_COLOR
+
+/* Inter-Thread communication */
+
+#define RT_USING_SEMAPHORE
+#define RT_USING_MUTEX
+#define RT_USING_EVENT
+#define RT_USING_MAILBOX
+#define RT_USING_MESSAGEQUEUE
+
+/* Memory Management */
+
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_HEAP
+
+/* Kernel Device Object */
+
+#define RT_USING_DEVICE
+#define RT_USING_CONSOLE
+#define RT_CONSOLEBUF_SIZE 128
+#define RT_CONSOLE_DEVICE_NAME "uart0"
+#define RT_VER_NUM 0x40000
+#define ARCH_CPU_64BIT
+#define ARCH_RISCV
+#define ARCH_RISCV64
+
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+#define RT_MAIN_THREAD_PRIORITY 10
+
+/* C++ features */
+
+
+/* Command shell */
+
+#define RT_USING_FINSH
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
+#define FINSH_USING_SYMTAB
+#define FINSH_USING_DESCRIPTION
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_CMD_SIZE 80
+#define FINSH_USING_MSH
+#define FINSH_USING_MSH_DEFAULT
+#define FINSH_USING_MSH_ONLY
+#define FINSH_ARG_MAX 10
+
+/* Device virtual file system */
+
+// #define RT_USING_DFS
+// #define DFS_USING_WORKDIR
+// #define DFS_FILESYSTEMS_MAX 4
+// #define DFS_FILESYSTEM_TYPES_MAX 4
+// #define DFS_FD_MAX 16
+// #define RT_USING_DFS_ELMFAT
+
+/* elm-chan's FatFs, Generic FAT Filesystem Module */
+
+// #define RT_DFS_ELM_CODE_PAGE 437
+// #define RT_DFS_ELM_WORD_ACCESS
+// #define RT_DFS_ELM_USE_LFN_3
+// #define RT_DFS_ELM_USE_LFN 3
+// #define RT_DFS_ELM_MAX_LFN 255
+// #define RT_DFS_ELM_DRIVES 2
+// #define RT_DFS_ELM_MAX_SECTOR_SIZE 512
+// #define RT_DFS_ELM_REENTRANT
+// #define RT_USING_DFS_DEVFS
+
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_PIPE_BUFSZ 512
+#define RT_USING_SERIAL
+
+/* Using WiFi */
+
+
+/* Using USB */
+
+
+/* POSIX layer and C standard library */
+
+#define RT_USING_LIBC
+// #define RT_USING_POSIX
+
+/* Network */
+
+/* Socket abstraction layer */
+
+
+/* light weight TCP/IP stack */
+
+
+/* Modbus master and slave stack */
+
+
+/* AT commands */
+
+
+/* VBUS(Virtual Software BUS) */
+
+
+/* Utilities */
+
+#define RT_USING_ULOG
+#define ULOG_OUTPUT_LVL_D
+#define ULOG_OUTPUT_LVL 7
+#define ULOG_USING_ISR_LOG
+#define ULOG_ASSERT_ENABLE
+#define ULOG_LINE_BUF_SIZE 128
+
+/* log format */
+
+#define ULOG_USING_COLOR
+#define ULOG_OUTPUT_TIME
+#define ULOG_OUTPUT_LEVEL
+#define ULOG_OUTPUT_TAG
+#define ULOG_BACKEND_USING_CONSOLE
+#define ULOG_SW_VERSION_NUM 0x00101
+
+/* RT-Thread online packages */
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* IoT Cloud */
+
+
+/* security packages */
+
+
+/* language packages */
+
+#define PKG_USING_MICROPYTHON
+
+/* Hardware Module */
+
+#define MICROPYTHON_USING_MACHINE_UART
+
+/* System Module */
+
+#define MICROPYTHON_USING_UOS
+#define MICROPYTHON_USING_THREAD
+
+/* Tools Module */
+
+#define MICROPYTHON_USING_UJSON
+
+/* Network Module */
+
+#define PKG_MICROPYTHON_HEAP_SIZE 8192
+#define PKG_USING_MICROPYTHON_LATEST_VERSION
+
+/* multimedia packages */
+
+
+/* tools packages */
+
+
+/* system packages */
+
+
+/* peripheral libraries and drivers */
+
+
+/* miscellaneous packages */
+
+
+/* sample package */
+
+/* samples: kernel and components samples */
+
+
+/* example package: hello */
+
+
+/* Privated Packages of RealThread */
+
+
+/* Network Utilities */
+
+#define BSP_USING_UART0
+#define __STACKSIZE__ 4096
+
+#endif
--- a/bsp/juicevm/rtconfig.py
+++ b/bsp/juicevm/rtconfig.py
@ -0,0 +1,59 @@
+import os
+
+# toolchains options
+ARCH        ='risc-v'
+CPU         ='juicevm'
+CROSS_TOOL  ='gcc'
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = r'../..'
+
+if os.getenv('RTT_CC'):
+    CROSS_TOOL = os.getenv('RTT_CC')
+
+if  CROSS_TOOL == 'gcc':
+    PLATFORM    = 'gcc'
+    EXEC_PATH   = r'/opt/xpack-riscv-none-embed-gcc-8.3.0-2.1/bin'
+else:
+    print('Please make sure your toolchains is GNU GCC!')
+    exit(0)
+
+if os.getenv('RTT_EXEC_PATH'):
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX  = 'riscv-none-embed-'
+    CC      = PREFIX + 'gcc'
+    CXX     = PREFIX + 'g++'
+    AS      = PREFIX + 'gcc'
+    AR      = PREFIX + 'ar'
+    LINK    = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE    = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY  = PREFIX + 'objcopy'
+
+    DEVICE  = ' -march=rv64ima -mabi=lp64 -mcmodel=medany'
+    CFLAGS  = DEVICE + ' -fno-builtin -fno-exceptions -ffunction-sections -static'
+    AFLAGS  = ' -c' + DEVICE + ' -x assembler-with-cpp'
+    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T link.lds'
+    CPATH   = ''
+    LPATH   = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O2 -Os -g'
+        AFLAGS += ' -g'
+    else:
+        CFLAGS += ' -O2 -Os'
+
+    CXXFLAGS = CFLAGS
+
+DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
+POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
+POST_ACTION += DUMP_ACTION
+# POST_ACTION = SIZE + ' $TARGET \n'
--- a/bsp/juicevm/static/juicevm_rtt.jpg
+++ b/bsp/juicevm/static/juicevm_rtt.jpg
--- a/libcpu/risc-v/juicevm/SConscript
+++ b/libcpu/risc-v/juicevm/SConscript
@ -0,0 +1,14 @@
+# RT-Thread building script for component
+
+from building import *
+
+Import('rtconfig')
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+CPPPATH = [cwd]
+ASFLAGS = ''
+
+group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
+
+Return('group')
--- a/libcpu/risc-v/juicevm/interrupt.c
+++ b/libcpu/risc-v/juicevm/interrupt.c
@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/24     Juice      The first version
+ */
+
+#include <rthw.h>
+
+#include <board.h>
+
+typedef void (*irq_handler_t)(void);
+extern const irq_handler_t isrTable[];
+
+uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc, uintptr_t *sp)
+{
+    uint32_t intNum;
+    if (mcause & 0x80000000) /* For external interrupt. */
+    {
+    }
+    else
+    {
+        intNum = mcause & 0x1FUL;
+        /* Now call the real irq handler for intNum */
+        if (intNum <= 24)
+        {
+            if (isrTable[intNum])isrTable[intNum]();
+        }
+    }
+}
--- a/libcpu/risc-v/juicevm/interrupt_gcc.S
+++ b/libcpu/risc-v/juicevm/interrupt_gcc.S
@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/24     Juice      The first version
+ */
+
+#include "cpuport.h"
+
+.section      .text.entry
+.align 2
+.global trap_entry
+trap_entry:
+
+/* save thread context to thread stack */
+addi sp, sp, -32 * REGBYTES
+
+STORE x1,   1 * REGBYTES(sp)
+
+csrr  x1, mstatus
+STORE x1,   2 * REGBYTES(sp)
+
+csrr  x1, mepc
+STORE x1, 0 * REGBYTES(sp)
+
+STORE x4,   4 * REGBYTES(sp)
+STORE x5,   5 * REGBYTES(sp)
+STORE x6,   6 * REGBYTES(sp)
+STORE x7,   7 * REGBYTES(sp)
+STORE x8,   8 * REGBYTES(sp)
+STORE x9,   9 * REGBYTES(sp)
+STORE x10, 10 * REGBYTES(sp)
+STORE x11, 11 * REGBYTES(sp)
+STORE x12, 12 * REGBYTES(sp)
+STORE x13, 13 * REGBYTES(sp)
+STORE x14, 14 * REGBYTES(sp)
+STORE x15, 15 * REGBYTES(sp)
+STORE x16, 16 * REGBYTES(sp)
+STORE x17, 17 * REGBYTES(sp)
+STORE x18, 18 * REGBYTES(sp)
+STORE x19, 19 * REGBYTES(sp)
+STORE x20, 20 * REGBYTES(sp)
+STORE x21, 21 * REGBYTES(sp)
+STORE x22, 22 * REGBYTES(sp)
+STORE x23, 23 * REGBYTES(sp)
+STORE x24, 24 * REGBYTES(sp)
+STORE x25, 25 * REGBYTES(sp)
+STORE x26, 26 * REGBYTES(sp)
+STORE x27, 27 * REGBYTES(sp)
+STORE x28, 28 * REGBYTES(sp)
+STORE x29, 29 * REGBYTES(sp)
+STORE x30, 30 * REGBYTES(sp)
+STORE x31, 31 * REGBYTES(sp)
+
+/* switch to interrupt stack */
+move  s0, sp
+
+/* handle interrupt */
+call  rt_interrupt_enter
+csrr  a0, mcause
+csrr  a1, mepc
+mv    a2, s0
+call  handle_trap
+call  rt_interrupt_leave
+
+
+/* switch to from_thread stack */
+move  sp, s0
+
+/* need to switch new thread */
+la    s0, rt_thread_switch_interrupt_flag
+lw    s2, 0(s0)
+beqz  s2, spurious_interrupt
+sw    zero, 0(s0)
+
+la    s0, rt_interrupt_from_thread
+LOAD  s1, 0(s0)
+STORE sp, 0(s1)
+
+la    s0, rt_interrupt_to_thread
+LOAD  s1, 0(s0)
+LOAD  sp, 0(s1)
+
+spurious_interrupt:
+tail rt_hw_context_switch_exit
--- a/libcpu/risc-v/juicevm/startup_gcc.S
+++ b/libcpu/risc-v/juicevm/startup_gcc.S
@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021/04/24     Juice      The first version
+ */
+
+
+.global   _start
+.section ".start", "ax"
+_start:
+.align 3
+csrw mideleg, 0
+csrw medeleg, 0
+csrw mie, 0
+csrw mip, 0
+la t0, trap_entry
+csrw mtvec, t0
+
+li x1, 0
+li x2, 0
+li x3, 0
+li x4, 0
+li x5, 0
+li x6, 0
+li x7, 0
+li x8, 0
+li x9, 0
+li x10, 0
+li x11, 0
+li x12, 0
+li x13, 0
+li x14, 0
+li x15, 0
+li x16, 0
+li x17, 0
+li x18, 0
+li x19, 0
+li x20, 0
+li x21, 0
+li x22, 0
+li x23, 0
+li x24, 0
+li x25, 0
+li x26, 0
+li x27, 0
+li x28, 0
+li x29, 0
+li x30, 0
+li x31, 0
+
+/* set to initial state of FPU and disable interrupt */
+li t0, 0
+csrs mstatus, t0
+
+.option push
+.option norelax
+la gp, __global_pointer$
+la   sp, __stack
+call entry
+call exit
+.option pop