Configuring LPUART on NXP S32K148 for Modbus RTU
The S32K148 MCU’s Low-Power UART (LPUART) peripheral can be used as the physical layer for Modbus RTU. Below is a concise walk-through of the minimal steps and a reference driver that receives variable-langth frames terminated by a newline character.
Physical-layer essentials
Idle level: logic high (1)
Start bit: logic low (0)
Data bits: 8 (LS ...
Posted on Wed, 22 Jul 2026 16:33:40 +0000 by pacognovellino