Part Number: TMS320F280039
Other Parts Discussed in Thread: C2000WARE
Hi team,
I ask this for my customer.
1.My customer add the PEC enabled symbol in project, but after check the data frame in bus, they find data changes but CRC is not change(always 0x99), could you help to check which will cause this?
2.After they call the read word API, CPU will execute the send byte firstly, is it normally?
Hi Delaney,
It should be caused by our SDK bug? It should be buffer[0] not buffer[1]
BRs
Shuqing
Hi Delaney,
Do we test this library before?
We find the low technical mistake again:
Customers use the demo in SDK(they need to realize PMBus in F28003x and F28002x, F28003x can realize the FOTA, and F28002x isn't realize it)
And they define below symbol:
Do we have the demo that have already been tested? This bug influence customer's development.
BRs
Shuqing
Hi Shuqing
Is the customer seeing this only for particular type of PMBus transcation? Also, is the target transmitter or receiver when they see PEC always as 0x99 ?
For send byte , the PEC is calculated as 0x42 for target address as 0x6A and command code as 0x55 which seems to be correct?
Similarly for write byte, the PEC is calculated as 0x96
I will continue looking into other PMBus transcations and let you know if any changes are needed.
Best Regards
Siddharth
