About PMalh.1

PMalh.1 · 2023-02-01

I am trying to interface with an AD8400 single channel digital potentiometer. It communicates over SPI and requires 2 address bits and 8 data bits to set its resistance. I am having trouble figuring out how to send a 10-bit message.I have set the dat...

PMalh.1 · 2023-02-01

I checked the micro's reference manual. Data frame format is covered on page 961-962. From what I have read, sending a 10-bit message should be fine. That said, I am still going to go ahead and test to be sure.

PMalh.1 · 2023-02-01

Thanks for your reply. The best course of action seems to be writing some code on to a test-board and experimenting. I will also give my microcontroller's reference manual another look.Is it possible to set the SPI DR to 10-bit mode? If not, I will k...

PMalh.1 · 2023-02-01

Hi S.Ma,I had seen the other post earlier and came to a similar conclusion. While it mentions the prospect of 9-bit messages, multiples of 8 were used.As for what you have suggested, I would like to provide some context and ask a follow up question. ...

PMalh.1 · 2023-02-01

Thanks for your reply. I understand now that the second parameter is a pointer to the data and the variable itself could be 16-bits. However, this raises the question, will all 16-bits be transmitted or will the transmission stop at 10-bits? I ask be...

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How to send 10-bit message using HAL_SPI_TRANSMIT

Re: How to send 10-bit message using HAL_SPI_TRANSMIT

Re: How to send 10-bit message using HAL_SPI_TRANSMIT

Re: How to send 10-bit message using HAL_SPI_TRANSMIT

Re: How to send 10-bit message using HAL_SPI_TRANSMIT