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[UART] Saves the achieved uart baud rate and adds SerialUART::getAcheivedBaud() #3225

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Merged
merged 5 commits into from
Oct 28, 2025
Merged

[UART] Saves the achieved uart baud rate and adds SerialUART::getAcheivedBaud() #3225

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7cf7787
Return acheived baud rate from begin function
ngist Oct 27, 2025
6f7e619
avoid altering virtual function spec
ngist Oct 27, 2025
e706d38
removed dangling return
ngist Oct 27, 2025
3740aa4
updated per comments
ngist Oct 27, 2025
8f01ccd
Merge branch 'master' into capture_acheived_baud
earlephilhower Oct 27, 2025
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3 changes: 2 additions & 1 deletion cores/rp2040/SerialUART.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,7 @@ void SerialUART::begin(unsigned long baud, uint16_t config) {
gpio_set_inover(_cts, _invertControl ? 1 : 0);
}

uart_init(_uart, baud);
int achieved_baud = uart_init(_uart, baud);
int bits, stop;
uart_parity_t parity;
switch (config & SERIAL_PARITY_MASK) {
Expand Down Expand Up @@ -295,6 +295,7 @@ void SerialUART::begin(unsigned long baud, uint16_t config) {
}
_break = false;
_running = true;
return achieved_baud;
}

void SerialUART::end() {
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6 changes: 3 additions & 3 deletions cores/rp2040/SerialUART.h
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Expand Up @@ -64,10 +64,10 @@ class SerialUART : public arduino::HardwareSerial {
bool setFIFOSize(size_t size);
bool setPollingMode(bool mode = true);

void begin(unsigned long baud = 115200) override {
begin(baud, SERIAL_8N1);
int begin(unsigned long baud = 115200) override {
return begin(baud, SERIAL_8N1);
};
void begin(unsigned long baud, uint16_t config) override;
int begin(unsigned long baud, uint16_t config) override;
void end() override;

virtual int peek() override;
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