About MPrat.1

MPrat.1 · 2021-07-07

Hi all.My objective is to read a stream of data intended for a shift register with 1.5us clock period.There are 17 clock cycles and I want to sample the data at the transition (upper or lower).Can this be achieved using SPI or should I just bit-bang ...

MPrat.1 · 2021-07-08

GotchaI think for now I will just bit-bang this until I get more familiar with the platform and then try to implement it without using hal later on.Thank You

MPrat.1 · 2021-07-08

The STM32G0 is the only slave so I guess no need for NSS.The data line stays idle at high and comes down just before the clock starts to pulse. I was hoping to use that to be able to call HAL_SPI_Receive at the right time to ignore the first clock cy...

MPrat.1 · 2021-07-08

Thank youI know I can disregard the first 1 to 9 bits. Since the data line comes down before the clock starts pulsing, I could use that to trigger the SPI read just after the 1st clock cycle and then only have 16bits to read. Could that work?

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Emulating a shift register in STM32G0

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