rt-thread/bsp/lpc55sxx/lpc55s28_nxp_evk
Yilin Sun 4570a9047d [bsp][lpc55sxx] GNU toolchain: fix broken port.
1 - The current linker flags undefines `Reset_Handler' and uses `entry()' as
default entry point (specified by `-e'), which will cause a invalid reset
vector in the image without proper crt0 init assembly routine.

2 - The default startup files provided by NXP violate the crt0 assumption
that bss section will be filled with zero unless macro `__STARTUP_CLEAR_BSS'
is defined. This will cause RTT hook funtion pointers set to non-NULL values at
kernel start, thus successfully passes the `RT_nnnn_HOOK_CALL` checks
and jumps to an invalid pointer.

3 - The default heap size used by TCB and kernel objects are set by
linker file macros, which is 0x400 (1024 bytes). The size is too small
for main task and the allocation will fail before the first task being created.

This patch restores Reset_Handler as default reset vector and executes
entry by replacing __START from newlib, defines the
`__STARTUP_CLEAR_BSS` macro to forcibly zeroize the bss section to avoid
unexpected hard faults, set proper heap sizes based on the SRAM sizes.
Some unused compiler/linker flags are also removed or replaced to avoid
future confusion.

The heap sizes for different devices are:
* LPC55(S)69/LPC55(S)28:            64kB
* LPC55(S)06/LPC55(S)16/LPC55(S)36: 32kB

Signed-off-by: Yilin Sun <imi415@imi.moe>
2024-02-07 21:57:28 -05:00
..
applications format Kconfig and sconscript 2023-01-08 22:52:13 -05:00
board [bsp][lpc55sxx] Add RTT constant table sections to GNU lds. 2024-02-07 21:57:28 -05:00
figures [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00
.config [bsp][lpc55sxx] Update default configs for LPC5500 series. 2024-02-07 21:57:28 -05:00
Kconfig format Kconfig and sconscript 2023-01-08 22:52:13 -05:00
README.md [bsp][lpc55s06] add LPC55S06 support 2022-12-05 18:43:41 -05:00
SConscript [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00
SConstruct [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00
flashdebug.ini [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00
project.uvoptx [bsp][lpc55sxx] update IDE project file 2022-12-30 07:52:46 -05:00
project.uvprojx [project] update mdk/iar project and config. 2023-10-08 11:21:00 +08:00
rtconfig.h [bsp][lpc55sxx] Update default configs for LPC5500 series. 2024-02-07 21:57:28 -05:00
rtconfig.py [bsp][lpc55sxx] GNU toolchain: fix broken port. 2024-02-07 21:57:28 -05:00
template.uvoptx [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00
template.uvprojx [bsp][lpc55sxx] add support of LPC5528/LPC55S28 (#6667) 2022-11-29 19:56:50 -05:00

README.md

LPC55S28-EVK 板级支持包

1. 简介(Introduction)

LPC55S28 是由恩智浦NXP半导体推出的基于Cortex-M33内核的高性能单片机 包括如下硬件特性:

硬件 描述
芯片型号 LPC5528/LPC55S28 全系列
CPU Cortex-M33 Dual Core, with FPU
主频 150MHz
基本外设 8个Flexcomm(任意配置为USART/SPI/I2C/I2S) / 1个50MHz SPI / 双USB(1高1全支持主从)
特色 PowerQuad DSP协处理器 / 安全外设:PRINCE/PUF/CASPER/AES-256/HASH

2. 硬件开发环境(Hardware development system)

开发板EVK

开发板示意图

3. 编译说明

环境 说明
PC操作系统 Linux/MacOS/Windows
编译器 armcc
构建工具 scons/mdk5
依赖软件环境 Env工具/(MDK或IAR或arm-none-eabi-gcc)/git/调试器驱动
  1. 下载源码
    git clone https://github.com/RT-Thread/rt-thread.git
  1. 配置工程并准备env

Linux/Mac

    cd rt-thread/bsp/lpc55S28_evk
    scons --menuconfig
    source ~/.env/env.sh
    pkgs --upgrade

Windows

在[RT-Thread官网][1]下载ENV工具包

  1. 配置芯片型号

Linux/Mac

    scons --menuconfig

Windows(ENV环境中)

    menuconfig

在menuconfig页面配置并选择对应的芯片型号若开发环境为MDK/IAR则需要生成工程

  1. 生成工程(Mac/Linux下请跳过此步骤)

Windows IAR

    SET RTT_CC=iar
    scons --target=iar -s

Windows MDK5*

    scons --target=mdk5 -s

*该板级支持包不支持生成mdk4的工程

MDK 与 IAR 在生成完成工程之后一定要在工程中手动选择一次芯片信号,否则会产生严重编译错误

  1. 编译

使用MDK或IAR请参见对应教程

Windows arm-none-eabi-gcc 使用以下指令设置gcc路径

    SET RTT_EXEC_PATH=[GCC路径]

Linux/Mac arm-none-eabi-gcc 使用以下指令设置gcc路径

    export RTT_EXEC_PATH=[GCC路径]

编译WindowsLinux/Mac arm-none-eabi-gcc

    scons -j4

或者通过 scons --exec-path="GCC工具链路径" 命令,在指定工具链位置的同时直接编译。

出现下列信息即为编译成功

    LINK rtthread-lpc55S28.elf
    arm-none-eabi-objcopy -O binary rtthread-lpc55s6x.elf rtthread.bin
    arm-none-eabi-size rtthread-lpc55S28.elf
    text    data     bss     dec     hex filename
    41596     356    1456   43408    a990 rtthread-lpc55s6x.elf
    scons: done building targets.

如果编译正确无误会产生rtthread-lpc55s6x.elf、rtthread.bin文件。其中rtthread.bin为二进制固件

3. 烧写及执行

烧写可以使用仿真器 ISP等多种方式 此处不再赘述

3.1 运行结果

如果编译 & 烧写无误会在Flexcomm0串口*上看到RT-Thread的启动logo信息

 \ | /
- RT -     Thread Operating System
 / | \     4.0.1 build Jul 30 2019
 2006 - 2019 Copyright by rt-thread team
uising armclang, version: 6120001
msh />

*默认串口

4. 驱动支持情况及计划

驱动 支持情况 备注
UART 支持 UART0/2
GPIO 支持 自动根据芯片型号选择引脚布局
SPI 支持 支持High Speed SPI
USB Device 不支持 暂不支持
USB Host 不支持 暂不支持
Windowed WatchDog 不支持 支持
ADC 不支持 暂不支持
I2C 支持 可配合MMA8562
I2C Sensor 支持 获取板上MMA8562加速度传感器数据
RTC 支持 RTC时钟自动配置
SDIO 支持 操作SD卡
I2S 不支持 暂不支持

6. 联系人信息

维护人: alex.yang@nxp.com