8000 Add rounding to Baud Rate Divisor calculation. Permits operation at … by WestfW · Pull Request #55 · arduino/ArduinoCore-sam · GitHub
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Add rounding to Baud Rate Divisor calculation. Permits operation at … #55

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Add rounding to Baud Rate Divisor calculation. Permits operation at …
WestfW Aug 2, 2018
b25d4c9
Merge branch 'arduino:master' into master
WestfW Dec 25, 2021
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Add rounding to Baud Rate Divisor calculation. Permits operation at 2… 
…30400.

regression tested at standard speeds 9600, 19200, 38400, 57600, 115200...
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@WestfW
WestfW committed Aug 2, 2018
commit b2e81ca99e1333c61367e96bcd52fd2399216ab7
4 changes: 2 additions & 2 deletions cores/arduino/UARTClass.cpp
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Expand Up @@ -60,8 +60,8 @@ void UARTClass::init(const uint32_t dwBaudRate, const uint32_t modeReg)
// Configure mode
_pUart->UART_MR = modeReg;

// Configure baudrate (asynchronous, no oversampling)
_pUart->UART_BRGR = (SystemCoreClock / dwBaudRate) >> 4;
// Configure baudrate (asynchronous, no oversampling, with rounding)
_pUart->UART_BRGR = ((SystemCoreClock / dwBaudRate)+8) >> 4;

// Configure interrupts
_pUart->UART_IDR = 0xFFFFFFFF;
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