TMS320F28388D: The use of flash API

Ti‘s customer

Intellectual 400 points

Part Number: TMS320F28388D

Hi，

When tms320f28388d was downloading CPU2, CPU1 ran away. About flash API

Flash_ powerDown() and Flash_ releasepumpsemaphore() interface ，When will it be used? Any difference?

Best Regards

over 5 years ago

0 Vamsi Gudivada over 5 years ago

TI__Guru* 87155 points

Hi,

Flash_PowerDown() can be used to put the flash in low power mode.

Flash_ releasepumpsemaphore() is used to relinquish the pump ownership - Pump can be gained by a CPU using this semaphore when it wants to do program/erase operations on it's flash bank. Once the flash operation is over, CPU can release the pump using this function.

What do you mean by CPU1 ran away? Please provide more details so that we can understand the problem clearly and help you debug.

Thanks and regards,
Vamsi

0 Sheldon He over 5 years ago in reply to Vamsi Gudivada

TI__Expert 8585 points

Hi Vamsi,

I am FAE for them and I can bring you some additional information here.

After we find CPU1's function going abnormal, we looked intot he debugger and find CPU1 enter into error process as shown below. Could we tell calling "CAN_senMessage" API is the last thing we have done before stuck in error API?

What could be the root cause behind this?

Thanks

Sheldon