Skip to content

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

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 5 commits into from
Oct 28, 2025
Merged

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

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion cores/rp2040/SerialUART.cpp
View file
Open in desktop
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);
_actualBaud = uart_init(_uart, baud);
int bits, stop;
uart_parity_t parity;
switch (config & SERIAL_PARITY_MASK) {
Expand Down
6 changes: 6 additions & 0 deletions cores/rp2040/SerialUART.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,13 +93,19 @@ class SerialUART : public arduino::HardwareSerial {
// on read)
bool getBreakReceived();

// Returns the baud rate the uart is actually operating at vs the desired baud rate specified to begin()
int getActualBaud() {
return _running ? _actualBaud : 0;
}

private:
bool _running = false;
uart_inst_t *_uart;
pin_size_t _tx, _rx;
pin_size_t _rts, _cts;
gpio_function_t _fcnTx, _fcnRx, _fcnRts, _fcnCts;
int _baud;
int _actualBaud;
mutex_t _mutex;
bool _polling = false;
bool _overflow;
Expand Down