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使用TMS570LC4357做在线升级功能。通过Bootloader将APP程序写入APP存储区,然后引导程序运行到APP,APP正常运行,但通过软件、硬件或是断电上电后,APP程序进入不了中断。
TMS570LC4357的CAN3和STM32芯片的CAN通信,进入APP后,TMS570LC4357会通过CAN定时发送数据到STM32。
Bootloader主要代码:
1、bootloader将APP程序写入flash后,跳转到APP,APP运行正常。
2、复位后,APP运行,发送出来一条CAN消息后,由于延时函数卡死。定时器不进入中断,延时无法结束。