SPI over USART
Hi
I am busy with a stm32 project and i want to setup a SPI connection over USART. It is working ok.
Ik am sending data with the SPI protocol, but my SPI slave device(RFM31B) is not responding.
Any idea on how i need to setup the USART rx so it ready to receive data? id did send dummy data so the clock is generated. and i inverted the data so MSB is send first.
i think i did not setup the USART rx the right way. The datasheet of the RFM31B sais the MISO line is pulled high when CS is high, but that is not happening.
I am busy with a stm32 project and i want to setup a SPI connection over USART. It is working ok.
Ik am sending data with the SPI protocol, but my SPI slave device(RFM31B) is not responding.
Any idea on how i need to setup the USART rx so it ready to receive data? id did send dummy data so the clock is generated. and i inverted the data so MSB is send first.
i think i did not setup the USART rx the right way. The datasheet of the RFM31B sais the MISO line is pulled high when CS is high, but that is not happening.
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