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TMS320C6413: Between C6413 and ADC McBSP communication

Part Number: TMS320C6413

Hi Champs,

We have got data communication issue between C6413 and ADS7476 via McBSP.

When ADS7476 out put data,  C6413 read wrong value from ADC. C6413 is able to read correct value at first data.

However, when ADS7476 change output data , C6413 didn't read same time. C6413 get correct value after 2cycle delay.

When we enlarge stack size, this issue seems to improve.

Do you think this stack size relate this phenomenon ?