在使用int uart_read_bytes(uart_port_tuart_num, uint8_t *buf, uint32_t length, TickType_t ticks_to_wait)这个函数时遇到些问题,请问,参数里面ticks_to_wait是表示串口等待这么长时间读一次?如果将这个参数改成portMaxDelay,是不是就一直是被挂起状态?参数里面length是给定的值,还是ticks_to_wait时间内...
I have ESP32-PICO-KIT v4 and i want to communicate with uart and serial port i took the following code example: Code: Select all /* UART Echo Example This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in ...
I'm actually facing the same problem. Before entering deepsleep, I flush UART & delete driver using API functions. After esp32 wakes up and I initialize same UART driver and flush rx buffer using uart_flush. However even the driver is deleted and buffer is (soft) flushed, rx buffer is ...
I'm currently working on a DMX512 library for the ESP32 https://github.com/luksal/ESP32-DMX-RX . DMX512 is a protocol based on RS485 where after a break signal 512 bytes are transmitted. The main concept is running an infinite loop and c...
在使用int uart_read_bytes(uart_port_tuart_num, uint8_t *buf, uint32_t length, TickType_t ticks_to_wait)这个函数时遇到些问题,请问,参数里面ticks_to_wait是表示串口等待这么长时间读一次?如果将这个参数改成portMaxDelay,是不是就一直是被挂起状态?参数里面length是给定的值,还是ticks_to_wait时间内...