TMS320F280039: CLA accessing odd 16-bit address

Hang Yang

Part Number: TMS320F280039

Tool/software:

Hi Experts,

My customer is accessing a 16-bit odd address in CLA, they found using below two methods can yield different results:

uint16_t x = *(uin16_t *)(0x00000B00U+1); // return correct value
uint16_t x = HWREGH(ADCARESULT_BASE+1);   // return value of previous even address

The TRM mentioned accessing 32-bit address may have the above behavior, but these are 16-bit access,

Could you please help explaining it/

Regards,

Hang

4 days ago

0 George Mock 1 day ago

TI__Guru**** 249380 points

For a source file with a statement that assigns an incorrect value, please follow the directions in the article How to Submit a Compiler Test Case. If the problem statement is not obvious, please edit the preprocessed file and add the comment /* PROBLEM HERE */.

Thanks and regards,

-George

0 Hang Yang 7 hours ago in reply to George Mock

TI__Intellectual 2751 points

Hi George,

This issue is solved. For the record, the root cause is that customer overrides the definition unit16_t type as unsigned integer, which is 32-bit in CLA.

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TMS320F280039: CLA accessing odd 16-bit address