Resolved! Talking to an HT16K33 via I2C
I’m connecting to an HT16K33 (on an Adafruit 4-digit, 7-segment display) to a NUCLEO-H755 board.I’m connecting I2C4 SCL to PF14 (pin 19 on CN9), and I2C4 SDA to PFf15 (pin 21 on CN9).Here's my init:static void MX_I2C4_Init(void) { hi2c4.Instance ...