SPI Read Problem (16 bits read out instead of 8 bits)

[bhpclan]

Posted on May 25, 2009 at 16:36

SPI Read Problem (16 bits read out instead of 8 bits)

[bhpclan]

Posted on May 17, 2011 at 13:12

Hi,

I've got a problem with the SPI functions included in the ST library. When I'm using the SPI_I2S_ReceiveData(...), the µC generates 16 clock pulses instead of only eight. The SPI is initialized with 8 bits. Before doing ReceiveData() I wait for Rx not empty. When sending something, only 8 bits are sent rightly. Anybody an idea what could be the reason?