C5515: CSL SPI Test Failed

Andreas Weishaupt

Hi all.

I need to setup SPI connection between the C5515 on the fingerprint kit and an external device. Therefore I've downloaded CSL (the "low-power" version), compiled the lib, compiled the SPI example and run it. I get following output:

SPI Instance Initialize successfully
SPI Instance Opened successfully
SPI Instance Configured successfully
SPI Instance Write successfully
SPI Instance Read successfully
SPI Instance deIntialize successfully
SPI Instance Close successfully

CSL SPI Test Failed!!

I've looked the example source file and put the spiReadBuff and spiWriteBuff in the watch window. spiWriteBuff has values 17, 171, 17, 171, ... while spiReadBuff is all 0. Where is the problem? Is there some bug in the CSL SPI lib w.r.t. to the C5515? Or some bug in the example code? Or did I forget something important? I've also tried for different SYSCLK frequencies, but nothing changes...

Thanks for all your help

Andreas

over 14 years ago

0 Andreas Weishaupt over 14 years ago

Expert 1270 points

As usual, after posting something into this board I find myself the answer. I'm really silly: there ain't any EEPROM on the usb stick kit. I suppose the SPI example code has been written for the C5515 EVM. At least SPI registers change successfully when stepping through the example code so I suppose all I have to do is to hook up a scope and look what it brings in order to continue work.

0 Peter Chung over 14 years ago in reply to Andreas Weishaupt

TI__Expert 8065 points

Thanks for the update. Good luck!

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C5515: CSL SPI Test Failed