mcuboot跳转异常

[84521716]

RT1052 MCU工程，参考mcuboot_opensource代码编写了一个自己的boot程序，boot代码放在OCRAM上（nor_ocram_txt_dtcm），APP代码也放在OCRAM上（nor_ocram_txt_dtcm),测试发现boot程序不能正常跳入到app,但是boot代码放在SDRAM上（nor_sdram_txt_ram）,app放在OCRAM上（nor_ocram_txt_dtcm)能正常跳转运行。项目上想剩一颗SDRAM芯片，所以只能boot代码在OCRAM上运行，app也得在OCRAM上运行。要如何适配才能让boot代码放在OCRAM,app也放在OCRAM上，boot能正常跳转入app?(2个scf文件都是验证过，正常工作的，app跳转地址和堆栈地址也是对的)

[84521716]

我规避了这些内存，一样是跳转异常，而且代码里应该是没有用bootROM api,bootloader里就只有拷贝app固件和跳转到app;

[Kan_Li]

Hi @84521716 ,

请问你的boot code是放在m_qacode这个section吗？APP代码放在m_data2这个section后面？

Have a great day,
Kan

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

[84521716]

boot code放在sdram，APP代码放也在m_data2这个section后面能正常跳转的；

一下是nor_sdram_txt_ram.scf部分截图

boot code放在m_data2这个section后面，APP代码放也在m_data2这个section后面是不能正常跳转的(scf文件，除了flash地址不一样，其他都一样)。现在想要boot code和app code 都放在m_data2这个section能正常跳转；

[Kan_Li]

Hi @84521716 ,

你的bootloader里面有没有调用bootROM API的接口？如果有的话需要注意你的bootloader有没有占用下面这段OCRAM空间：

Have a great day,
Kan

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------