Resolved! STM32H723ZG + DS8500 HART Modem → OCD pin always LOW (No Carrier) when interfacing with 2088 Pressure Transmitter
I am working on establishing HART communication using an STM32H723ZG Nucleo board, a Maxim DS8500 HART modem, and a 2088 Pressure Transmitter (4–20 mA + HART). Hardware Setup: STM32H723ZG USART3 → Debug to PC (115200, 8N1, no parity) USART6 → Conn...