S32G just support serial download a M7 image to run by internal rom codes, our S32G DS IDE have a flash tools to use this feature to burn the image to external device. So current image burn method will divide into 2 step:
1: burn a uboot into the external device by S32G DS flash tools.
2: reboot the codes with uboot and run with network to burn the linux image into external device.
which need two working place on manufacture line, and customer wish to have a one time on-line tools, which means we need use serial port to boot uboot directly but S32G rom codes do not support it.
We have a reference tools of S32V but which IP difference is big between on S32V and S32G, So we can not reuse it and have to develop a new one.
The development working include:
序号 |
开发工作 |
说明 |
开发者 |
1 |
开发 |
根据S32G的serial boot协议要求,开发PC端的串口工具来下载M7镜像 |
John.Li |
2 |
开发 |
根据自定义协议要求,开发PC端的串口工具来下载A核Bootloader到SRAM中 |
John.Li |
3 |
开发 |
根据自定义协议要求,开发M7镜像的串口接收与Checksum逻辑 |
John.Li |
4 |
开发 |
修改M7镜像支持串口0 |
John.Li |
5 |
开发 |
开发实现M7镜像的串口单字节同步收发函数 |
John.Li |
6 |
开发 |
开发实现A53启动功能 |
John.Li |
7 |
调试与Debug |
调试解决串口接收乱码问题(Serial boot rom codes仍然在回送消息串口) |
John.Li |
8 |
调试与Debug |
提供 解决A核启动串口halt思路(Serial boot rom codes仍然占用串口) |
John.Li |
9 |
调试与Debug |
优化M7镜像,缩小大小 |
Tony.Zhang |
10 |
调试与Debug |
根据M7镜像和A核 Uboot在SRAM中的内存分配要求,重排M7镜像位置,避免冲突 |
Tony.Zhang |
11 |
调试与Debug |
在M7中初始化SRAM空间 |
Tony.Zhang |
12 |
调试与Debug |
在M7中设置SRAM可执行空间 |
Tony.Zhang |
13 |
调试与Debug |
调试解决由于cache没有及时回写导致的下载镜像错误的问题 |
Tony.Zhang |
14 |
调试与Debug |
集成,调优与文档 |
John.Li |
Pls check the attachment for the doc/codes/binary release which include:
Release
|->M7: Linflexd_Uart_Ip_Example_S32G274A_M7: S32DS M7工程。
|->PC: s32gSerialBoot_Csharp: PC端的Visual Studio的C#的串口工具工程。
|->Test:
| |-> 115200_bootloader.bin: S32DS M7工程编译出来的bin文件,波特率为115200
| |-> 921600_bootloader.bin: S32DS M7工程编译出来的bin文件,波特率为921600
| |->load_uboot.bat: 运行工具的批处理文件,运行成功后打开串口可以看到Uboot执行,默认使用的波特率是115299
| |->readme.txt:其它测试命令
| |->s32gSerialBoot.exe:编译出来的PC端串口工具
| |->u-boot.bin: BSP29默认编译出来的u-boot.bin.
Product Category | NXP Part Number | URL |
---|---|---|
Auto MPU
|
S32G274
|
|