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by cssvb94
Tue Dec 22, 2020 10:36 am
Forum: ESP-IDF
Topic: Need the equivalent of Arduino's SPI.transfer16
Replies: 5
Views: 8814

Re: Need the equivalent of Arduino's SPI.transfer16

OK I found my problem. The chip I am talking to (XPT2046 touch screen controller) requires 3 SPI 8 bit transfers for each touch position read. If I let the esp-idf spimaster code control the chip select to the controller it toggles the chip select after each 8 bit transfer messing up the data recei...