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Fix no response on Serial* with high BAUDRATE #47

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Jul 7, 2021
Merged

Fix no response on Serial* with high BAUDRATE #47

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8 changes: 5 additions & 3 deletions cores/arduino/HardwareSerial.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
#include <Stream.h>

extern "C" {
#include <lpc17xx_clkpwr.h>
#include <lpc17xx_uart.h>
#include "lpc17xx_pinsel.h"
}
Expand Down Expand Up @@ -102,6 +103,7 @@ class HardwareSerial : public Stream {
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 3;
PINSEL_ConfigPin(&PinCfg);
CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_UART0, CLKPWR_PCLKSEL_CCLK_DIV_1);
} else if ((LPC_UART1_TypeDef *) UARTx == LPC_UART1) {
// Initialize UART1 pin connect
PinCfg.OpenDrain = 0;
Expand All @@ -122,7 +124,7 @@ class HardwareSerial : public Stream {
PinCfg.Pinnum = 16;
PINSEL_ConfigPin(&PinCfg);
#endif

CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_UART1, CLKPWR_PCLKSEL_CCLK_DIV_1);
} else if (UARTx == LPC_UART2) {
// Initialize UART2 pin connect
PinCfg.OpenDrain = 0;
Expand All @@ -143,7 +145,7 @@ class HardwareSerial : public Stream {
PinCfg.Pinnum = 11;
PINSEL_ConfigPin(&PinCfg);
#endif

CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_UART2, CLKPWR_PCLKSEL_CCLK_DIV_1);
} else if (UARTx == LPC_UART3) {
// Initialize UART3 pin connect
PinCfg.OpenDrain = 0;
Expand Down Expand Up @@ -171,7 +173,7 @@ class HardwareSerial : public Stream {
PinCfg.Pinnum = 1;
PINSEL_ConfigPin(&PinCfg);
#endif

CLKPWR_SetPCLKDiv(CLKPWR_PCLKSEL_UART3, CLKPWR_PCLKSEL_CCLK_DIV_1);
}

/* Initialize UART Configuration parameter structure to default state:
Expand Down