Implements UART SerialHardware Refactoring on top of IDF

[SuGlider]

Summary

This PR is a complete reffactoring of UART Serial Hardware and respective HAL in order to use IDF instead of current Register manipulation approach.

It implements Arduino SerialEvent functionality.

Fix #5287
Fix #5273
Fix #5519
Fix #5247
Fix #5403
Fix #5429
Fix #5047
Fix #5463
Fix #5362
Fix #5112
Fix #5443

Impact

It solves many reported issues related to UART.
It was tested and works fine for ESP32, ESP-S2 and ESP32-C3.

[mannarsai]

Hi,
I am trying a simple UART pass through example using Arduino IDE. Using Serial1(UART1) on ESP32-C3 DEVKITM1. But it does not seem to be working.
I am using 2.0.2 board library. Have tried, the default pins (18,19), reconfigured pins to (2,3) using Serial1.begin(). But still does not work.
I also tried looping back on Serial1 even that does not seem to work. Could you kindly help in resolving the issue.

Code Snapshot

#define BPM_UART Serial1
#define BPM_RX_UC_TX 3
#define BPM_TX_UC_RX 2

void setup() {
Serial.begin(9600);
BPM_UART.begin(9600);

Serial.println("Test");

//BPM_UART.begin(9600, SERIAL_8N1, BPM_TX_UC_RX, BPM_RX_UC_TX);
}

void loop() {

// if (Serial.available()) { // If anything comes in Serial (USB),
// BPM_UART.write(Serial.read()); // read it and send it out Serial1 (pins 0 & 1)
// }

//Shorted Pins 18,19
BPM_UART.print("a");
if (BPM_UART.available()) { // If anything comes in Serial1 (pins 0 & 1)
Serial.write(BPM_UART.read()); // read it and send it out Serial (USB)
}

}

[SuGlider]

@mannarsai
I confirmed the issue.
Indeed, something is broken in V2.0.2 regarding UART Loopback.
I'll investigate it and fix.

[SuGlider]

@mannarsai
The issue has been reviewed and fixed by #6133

[mannarsai]

Thank you

[SuGlider]

@mannarsai
Thank you for reporting this issue!

[AzezurRehman]

i am facing these error ""E (348) uart: uart_set_pin(646): tx_io_num error"" on example program under uart example uart_async_rxtxtasks please help me how to figer out these even i have configered tx and rx pin correctly

[SuGlider]

@Takashi426 - please open a new issue with a small sketch that can be used to reproduce the problem you have found.