rt1062 flexcan interrupt_transfer demo BUG!

[lichengxiang]

Hello everyone,I use SDK_2.4.1 flexcan interrupt_transfer demo,user board EasyARM-RT1062,

When I Comment out BOARD_InitDebugConsole()，CAN2 cannot send data；In other unchanged circumstances，I add BOARD_InitDebugConsole(), CAN2 send data is OK,I found a debug?

I do not why,I need help,Thanks.

[kerryzhou · Accepted solution]

Hi lichengxiang,

  As I know, lpuart0 and the lpuart7 clock will have relationship with the CANFD module.

There are two workarounds for this issue:
-- Set CAN_CLK_SEL to 0 or 1 for CAN clock selection.
Or,
-- If CAN_CLK_SEL is set to 2, then the CCM must open any of UART clock gate by configuring the CCM_CCGRx register.

Wish it helps you!

If you still have questions about it, please kindly let me know.

Best Regards,

Kerry