Closed
Description
Board
ESP32
Device Description
DevKit
Hardware Configuration
None
Version
latest master (checkout manually)
IDE Name
Arduino IDE
Operating System
Win11
Flash frequency
80Mhz
PSRAM enabled
no
Upload speed
115200
Description
Starting UART0 and then using RX/TX Pins for RMT and starting again UART0 fails.
It works with 2.0.14, but it doesn't with 3.0.0-Alpha2.
The execution sequence can be seen in the example bellow.
Sketch
void setup() {
Serial.begin(115200);
delay(1000);
Serial.println("TESTING ... 1");
Serial.flush();
const uint8_t testedPin = 1; // ESP32 UART0 RX=3 | TX = 1
#if 0
// Arduino Core 2.0.4 -- working fine.
rmt_obj_t* rmt_send = NULL;
if ((rmt_send = rmtInit(testedPin, RMT_TX_MODE, RMT_MEM_64)) == NULL) {
Serial.println("init sender failed\n"); // RX(3) / TX(1) is being used now... it may not print anything.
}
float realTick = rmtSetTick(rmt_send, 100);
Serial.printf("real tick set to: %fns\n", realTick); // not to be seen... as we use TX0 in RMT.
#else
// Arduino Core 3.0.0-Alpha2 -- working fine.
if (!rmtInit(testedPin, RMT_TX_MODE, RMT_MEM_NUM_BLOCKS_1, 10000000)) {
Serial.println("init sender failed\n");
}
Serial.println("real tick set to: 100ns");
#endif
delay(500);
Serial.end();
Serial.begin(115200);
Serial.setPins(3, 1);
Serial.println("TESTING ... 2");
Serial.flush();
}
void loop() {
Serial.println("Looping ...");
delay(5000);
}Debug Message
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1416
load:0x40078000,len:14804
load:0x40080400,len:4
load:0x40080404,len:3356
entry 0x4008059c
TESTING ... 1
********************===> UART0 stops working and it doesn't recover
Other Steps to Reproduce
None.
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.
Metadata
Metadata
Assignees
Type
Projects
Status
Done