CCS: TMS570LS0914: Command Registers (IF1CMD and IF2CMD) were declared as uint8

jian yin

Tool/software: Code Composer Studio

When I looked at the code generated by Hal, I found that IF1CMD and IF2CMD were declared as uint8. I wanted to ask what would happen if they were declared as uint32, because when I declared as uint8, the data could also be sent, but part of the way there was no data transfer.

over 7 years ago

0 QJ Wang over 7 years ago

TI__Guru**** 200256 points

Hello Tsukiko,

CMD filed is 8 bit wide (23:16), uint8 has to be used to declare this field (uint if1cmd). If the IF1CMD in reg_can.h was declared as uint32, the address for this cmd register and the following registers (mask, arb, msgCtrl, data, etc) will be messed up. The value written to IF1CMD in can.c will be written to mask register.

0 jian yin over 7 years ago in reply to QJ Wang

Prodigy 180 points

Thank you for your generous help and wish you a happy Halloween!

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CCS: TMS570LS0914: Command Registers (IF1CMD and IF2CMD) were declared as uint8