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F2812 SPI problem

dorothee.kolski
Prodigy 10 points

Hi,

I'm currently working with an MSK2812 board which included a DSP F2812 from TI. On this board I have implement the SPI using the dedicated peripheral. The SPI was functionnal and my programm was then implemented in flash memory. After lots of tests the SPI was still functionnal.

Today I power up the MSK2812 board but the SPI is not functionnal anymore. Especially the SPISTE signal gows from low to high instead of high to low when a transmission is asked. I have check the different jumpers of the board and they are all at the right place. I have also implement the code on another MSK2812 but the problem still exists :

- SPISTE low -> high instead of high to low

- the clock always stay high

- no data transmission.

Does somebody have an idea ?

Thanks,

Dorothee