CCS/TMS320F28377D: The SDFM module of 28377d always has the clock loss error

when MF1 = 1, it means SDCLK is missing. Once this bit is set, you can't clear this flag until the condition which caused the bit to get set is no longer existing.

1) Make sure you have a valid clock signal on SD-C1 pin
2) Make sure your GPIO is configured correctly as SD-C1 pin.

Regards,
Manoj

HI! Manoj
I have set the GPIO correctly，and the clock signal is PWM5A andPWM5B. But there is still have the clock missing error. What can i do to this question. thank you！
Regards，
shook

Which GPIO pins are used as SD-C1 / SD-D1 pins? and how have you configured? Did you already look into SDFM example code available in controlSuite / C2000Ware?

Regards,
Manoj

HI! Manoj
thank you for the answer.
The problem Occurs when using CCS simulation,I set the breakpoint in the program to check my program, when the program stop running, this error will happend. I think this error is right becase when the program is stoped but the clock of the sd-c didn't stop. so this error is happend.My understand is right? thank you！

Is your PWM configured to stop on breakpoint? Also, please answer my questions on earlier post.

-Manoj

Hi，Manoj

This is the GPIO configuration of SD-C and SD-D,The another configuration is same as the example code available in controlSuite, C:\ti\controlSUITE\device_support\F2837xD\v210\F2837xD_examples_Cpu1\sdfm_pwm_sync_cpu. 

Then I test the C:\ti\controlSUITE\device_support\F2837xD\v210\F2837xD_examples_Cpu1\sdfm_pwm_sync_cpu. when  I stop simulation, it still has the clock error 

YES，when I stop simulation the EPWM TBcount stoped. How I set the configuration if I want the EPWM didn't stop when I stop the simulation.thank you！

regards

shook 

Did you resolve this issue?

-Manoj