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Tangyuxin d724eed9fc
分离内存分配接口与内存分配算法 (#5175) 
* [kernel][mem] Multiple instances of small memory allocation algorithm

* [kernel][mem] Change small memory management algorithm memory header flag

* [kernel][mem] Fix assertion problem

* [kernel][slab] Multiple instances of slab memory management algorithm

* [kernel][memheap] Remove rt_malloc/rt_free/rt_realloc and other related memory interfaces

* [kernel][mem] Clean up memory space of small memory management objects

* [kernel][kservice] Add memory application interface and thread protection interface

* [kernel][kservice] Fix function return value problem

* [kernel][memheap] Optimize memheaptrace print

* [kernel][memheap] Support best mode

* [kernel][memory] Remove semaphore lock

* [kernel][memheap] Add locked flag

* [kernel][memory] Support malloc memory in interrupt

* [kernel][memheap] Add 'memheapcheck' cmd

* [kernel][mem] Fix failure to request full memory

* [kernel][memheap] Fix compilation warning

* [kernel][mem] Fix mem realloc ASSERT

* [examples][testcases] Add small mem testcase

* [examples][mem_tc] Modify test memory size

* [examples][testcases] Add slab memory management algorithm test case

* [examples][testcases] fix small memory management algorithm test case

* [kernel][memory] Adjusting memory allocation algorithm object definition and interface

* [kernel][memory] Fix compilation warning

* [examples][utest] Fix mem test case

* [examples][utest] fix slab test case

* [utest][testcases] Shorten test time

* [kernel][memory] Formatting code

* [examples][utest] Adjust test run time

* [examples][utest] Formatting code

* [bsp] update all rtconfig.h
 		2021-12-16 16:23:58 +08:00
..
ri5cy 分离内存分配接口与内存分配算法 (#5175) 2021-12-16 16:23:58 +08:00
rv32m1_sdk_riscv [BSP] Import RV32M1 SDK 2018-12-08 10:47:28 +08:00
README.md Update BSP README with EN Version. 2020-09-09 18:22:26 +08:00
README_zh.md Update BSP README with EN Version. 2020-09-09 18:22:26 +08:00

README.md

RISC-V RV32M1 VEGA Board BSP(Board Support Package) Execution Instruction

中文页 |

Introduction

RV32M1_VEGA board is a heterogeneous multi-core RISC-V 32 development board that contains two RISC-V 32-bit cores, as well as BLE peripherals.

Hardware Description
Chip Model RV32M1
CPU RV32IMC, with extensons for post-incrementing load and stores,
multiply-accumulate extensions, ALU extensions, hardware loops.
RV32IEMC
Main Frequency 48MHz or 72MHz
48MHz or 72MHz
On-chip SRAM 256kB + 128kB
On-chip Flash 1MB + 256kB

Compilation

The toolchain currently used for test is built from the standard GNU GCC 7.2.0 and newlib 2.5.0 and for the standard RV32IMC architecture, so the extension instructions of RV32M1 is not supported, note that the version of RT-Thread ENV used in this BSP is 1.0.

It's recommended to use the env tool to compile programs on Windows. Switch to the directory bsp/rv32m1_vega/ri5cy in the console and run the following command to compile this BSP:

scons

If successfully compiled, a new 'rtthread.elf' and 'rtthread.bin' file will be generated. ‘rtthread.bin' needs to be burned to the device and run.

Burn and Execution

Please use JLink to connect to the JTAG interface of the RISC-V core on the RV32M1_VEGA board, and change the JLink driver to WinUSB mode. The JTAG interface is located next to the RV32M1 chip and the antenna seat, with a small 20pin JTAG interface.

Use a USB cable to connect to a USB port marked with SDA, then a serial device is recognized by PC, which can be opened with the configuration of 115200-N-8-1. The serial pins used by the device are: [PTC7/PTC8]

When the rtthread.bin image file is generated after being correctly compiled, you can use gdb to connect to openocd and burn it to flash with the load command.

For more information about how to use JTAG and how to use gdb to debug the RV32M1_VEGA development board, please refer to Development Environment Construction.

Running Results

When the compiling and burning are done correctly, press the reset button SW1 to reset the device, the startup message of RT-Thread can be observed via the serial port :

 \ | /
- RT -     Thread Operating System
 / | \     4.0.0 build Dec  5 2018
 2006 - 2018 Copyright by rt-thread team
File System initialized!
Hello RT-Thread!
msh />

Peripheral Condition

Drive Support Remark
UART Support UART0, RX(PTC7), TX(PTC8)
Support UART1, RX(PTA25), TX(PTA26)
clock Support
GPIO Support(The list may not complete, also you need to modify pinmux, clock according to the IO being used.)
MMC/SD Support

IO mapping in BSP

IO Number BSP Code Definition
PTA22 LED_BLUE
PTA23 LED_GREEN
PTA24 LED_RED
PTA24 LED_STS
PTA25 UART1_RX
PTA26 UART1_TX
PTE8 BTN_SW3
PTE9 BTN_SW4
PTE12 BTN_SW5
PTA0 BTN_SW2/BTN_NMI

References