您好:
我正在调试AM2634-LP的CAN驱动,在NOBOOT MODE下使用CSS在线调试时,CAN通信正常,使用CANFD模式,仲裁域与数据域的波特率为500K。将代码烧录到外部flash,在QSPI BOOT MODE下运行时,CAN通信异常,最后发现是波特率错误,实测下来波特率为220K左右,我方波特率配置如下:

请问这是什么原因,同时的定时器与UART通信是正常的。
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请尝试按照下面FAQ里的方法用仿真器跟踪一下QSPI boot过程,看能否定位一下哪里出问题了。
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1119575/faq-mcu-plus-sdk-am243x-how-to-debug-sbl_qspi-for-am263-and-am273-or-sbl_ospi-for-am243-or-an-application-which-is-booted-via-ospi-qspi-boot