BootLoader是否必须在RAM中运行SPC5XXX？

Yvin.Erwan.001
“
 注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文





Yvin.Erwan.001
‌
Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level

嗨，
你可以在flash中创建一个bootloader。查看这篇文章以及相关的spc5studio项目。
https://community.st.com/0D50X00009Xkeh4SAB
问候，
Procolo
 
 注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文




Hi,
you can create a bootloader in flash. Check out this post and related spc5studio projects attached.  

https://community.st.com/0D50X00009Xkeh4SAB
Regards,
Procolo

Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level

我的APP地址是0x18000，我做了测试。
如果我写道：
 
e_lis％r3，HI（0x00018000）
e_or2i％r3，LO（0x00018000）
mtctr％r3
se_bctrl
跳转失败。
 
我必须写：
e_lis％r3，HI（0x00018008）
e_or2i％r3，LO（0x00018008）
mtctr％r3
se_bctrl
跳转成功，MCU可以执行APP主要功能，但执行异常....请告诉我，在跳程序之前，我该怎么办？
我的bootloader跳转代码：
 
 // irqIsrDisable（）;
 
 // can_lld_stop（安培; CAND1）;
 CAN_0.MCR.B.MDIS = 1; //禁用FlexCAN // can_lld_stop（＆amp; CAND2）;
 
 CAN_1.MCR.B.MDIS = 1; // can_lld_stop（＆amp; CAND3）;
 
 CAN_2.MCR.B.MDIS = 1; // PIT.PITMCR.B.MDIS = 1; / * PIT时钟已禁用。 * /
 
 // SPCSetPeripheralClockMode（SPC5_PIT_PCTL，SPC5_PIT_STOP_PCTL）; // INTC.MCR.B.HVEN = 1;
SPCSetRunMode（SPC5_RUNMODE_DRUN）;
（*（AppFunctionType）（JMP_ADDRESS + 8））（）;
但是效果不好......



以下为原文




My APP address is 0x18000, i did test.
if i wrote:

e_lis% r3, HI (0x00018000)
e_or2i% r3, LO (0x00018000)
mtctr% r3
se_bctrl
Jump failed.

I must write:
e_lis% r3, HI (0x00018008)
e_or2i% r3, LO (0x00018008)
mtctr% r3
se_bctrl
Jump success, MCU can be executed to the APP main function, but the implementation of abnormal ....Please tell me, before jumping program, how should I do?
My bootloader Jump code:


//irqIsrDisable();

//can_lld_stop(&CAND1);
CAN_0.MCR.B.MDIS = 1; // disable FlexCAN//can_lld_stop(&CAND2);

CAN_1.MCR.B.MDIS = 1;//can_lld_stop(&CAND3);

CAN_2.MCR.B.MDIS = 1;// PIT.PITMCR.B.MDIS = 1; /* PIT clock Disabled. */

//SPCSetPeripheralClockMode(SPC5_PIT_PCTL, SPC5_PIT_STOP_PCTL);//INTC.MCR.B.HVEN = 1;
SPCSetRunMode(SPC5_RUNMODE_DRUN);
(*(AppFunctionType)(JMP_ADDRESS+8))();
But it is not working good...

您好，这些功能用于另一个平台的引导程序，但也适用于您的
void StopPeripherals（void）{
 
 / *停止STM * /
 stm_lld_stop（＆amp; STMD1）; / *停止系统计时器* /
 
 SPCSetPeripheralClockMode（SPC5_PIT_PCTL，SPC5_PIT_STOP_PCTL）; / *禁用中断* /
 
 irqIsrDisable（）;}
void SetDRUNMode（void）{
 
 ME.DRUN.R =（0UL | SPC5_ME_MC_MVRON | SPC5_ME_MC_DFLAON_NORMAL | SPC5_ME_MC_CFLAON_NORMAL | SPC5_ME_MC_IRCON | SPC5_ME_MC_SYSCLK_IRC）;
 if（SPCSetRunMode（SPC5_RUNMODE_DRUN）== CLOCK_FAILED）{
 pal_lld_togglepad（PORT_A，Led_D11）;
 SPC5_CLOCK_FAILURE_HOOK（）;
 }
} void JumpMain（void）{
 
 / *分支到主应用程序。* /
 asm volatile（'e_lis％r3,0x00010008 @ h  t  n'
 'e_or2i％r3,0x00010008 @ l  t  n'
 'mtctr％r3  t  n'
 'se_bctrl'）;
订单是
  - StopPeripherals
-
SetDRUNMode
- JumpMain
最重要的是停止默认运行的PIT时钟并在跳转前禁用irq。
同时使用ME.DRUN.R中的配置设置DRUN
问候，
Procolo



以下为原文




Hello, these funcion are used in a bootloader of another platform but should be ok also for yours
void StopPeripherals(void) {

/*Stop STM */
stm_lld_stop(&STMD1);/*Stop System Timer*/

SPCSetPeripheralClockMode(SPC5_PIT_PCTL, SPC5_PIT_STOP_PCTL);/* Disable Interrupt */

irqIsrDisable();}
void SetDRUNMode(void) {

ME.DRUN.R = (0UL | SPC5_ME_MC_MVRON | SPC5_ME_MC_DFLAON_NORMAL | SPC5_ME_MC_CFLAON_NORMAL | SPC5_ME_MC_IRCON | SPC5_ME_MC_SYSCLK_IRC);
if (SPCSetRunMode(SPC5_RUNMODE_DRUN) == CLOCK_FAILED) {
pal_lld_togglepad(PORT_A, Led_D11);
SPC5_CLOCK_FAILURE_HOOK();
}
}void JumpMain(void) {

/* Branch to the main application.*/
asm volatile ('e_lis %r3, 0x00010008@h tn'
'e_or2i %r3, 0x00010008@l tn'
'mtctr %r3 tn'
'se_bctrl');
}Order is

- StopPeripherals

-
SetDRUNMode

- JumpMain

most important is to stop the PIT clock which runs by default and to disable irq before jump.

Also set DRUN with the configuration set in ME.DRUN.R

Regards,

Procolo

好！谢谢，我会试一试！



以下为原文




ok! Thank you  ,i will  try it!

注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文












Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level