Hello all! I've been working on building a project based on the Adafruit STM32F405 Feather Express. My main goal is to be able to control an 8 channel DAC, with each channel being able to put out at maximum a 4 kHz sawtooth wave independently of each other (i.e. channel 1 outputs a 255 Hz sawtooth,…

Painfully slow SPI on STM32

PaulRB July 31, 2020, 12:55pm 2

Try moving the SPI.beginTransaction() to setup() and removing SPI.endTransaction().

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