Need to fix the file HardwareSerial.cpp

[MichaelAndronov]

          Need to fix the file HardwareSerial.cpp

as in this video https://www.youtube.com/watch?v=GwShqW39jlE&t=203s

Originally posted by @MichaelAndronov in https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-DMA/issues/387#issuecomment-1450244887

[Lukaswnd]

Do you guys know, that you can set the pins for the HardwareSerial? So you don't have to edit the lib and do it every time you update it. The function is part of the HardwareSerial class. `void setPins(int8_t rxPin, int8_t txPin, int8_t ctsPin = -1, int8_t rtsPin = -1);

Serial1.setPins(4, 21); Serial1.begin(115200);`

You could also set them in Serial.begin(). Just make sure so set the config as well. `void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL, uint8_t rxfifo_full_thrhd = 112);

Serial1.begin(115200, SERIAL_8N1, 4, 21);`

I don't know why these are the default pins. They are connected to the flash (and SPIRAM/PSRAM if present), which makes it really hard to actually use them especially with uart.

[MichaelAndronov]

OK! Great, thanks a lot for the advice. I will try. Michael

On Thu, Mar 9, 2023 at 12:18 PM Lukaswnd @.***> wrote:

Do you guys know, that you can set the pins for the HardwareSerial? The function is part of the HardwareSerial class. `void setPins(int8_t rxPin, int8_t txPin, int8_t ctsPin = -1, int8_t rtsPin = -1);

Serial1.setPins(4, 21); Serial1.begin(115200);`

You could also set them in Serial.begin(). Just make sure so set the config as well. `void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL, uint8_t rxfifo_full_thrhd = 112);

Serial1.begin(115200, SERIAL_8N1, 4, 21);`

I don't know why these are the default pins. They are connected to the flash (and SPIRAM/PSRAM if present), which makes it really hard to actually use them especially with uart.

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