How to set pad conf registers and where to check the result?

Fay

Other Parts Discussed in Thread: AM3517

Hi,

(original question: SPI1 somi data is observed by scope, but no data on register, why?)

I'm using am3517 and adeneo bsp. I used SPI1 channel 1 which is not used by default.

Now my problem is that I can NOT read data from RX register, even when I observed the data on somi pin by a scope.

Which part chould be wrong? I'm wondering the pad conf, but the code should be fine:

Any other place I should check? once the pads is defined, is it possible that padconf is changed by some code else?

Thanks

0 Fay over 12 years ago

It's strange that when I check the panconf registers. The input/output pin config is incorrect as for SPI1.

So the question now is : where is the padconf configured? how to check if some code else is modifying the padconf?

0 Fay over 12 years ago

Xu Fei1 said:
PAD_ENTRY(MCSPI1_SOMI,INPUT_ENABLE | PULL_RESISTOR_DISABLED | MUXMODE(0)) \

it should be INPUT_ENABLED not INPUT_ENABLE, I feel stupid today.

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