/* Board Debug UART Initialisation function */
STATIC void Board_UART_Init(void)
{
/* Enable the clock to the Switch Matrix */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
/* Connect the U0_TXD_O and U0_RXD_I signals to port pins(P0.07, P0.18) */
Chip_SWM_DisableFixedPin(SWM_FIXED_ADC0);
Chip_SWM_DisableFixedPin(SWM_FIXED_ADC8);
/* Enable UART Divider clock, divided by 1 */
Chip_Clock_SetUARTClockDiv(1);
/* Divided by 1 */
if (DEBUG_UART == LPC_USART0) {
Chip_SWM_MovablePinAssign(SWM_U0_TXD_O, 7);
Chip_SWM_MovablePinAssign(SWM_U0_RXD_I, 18);
} else if (DEBUG_UART == LPC_USART1) {
Chip_SWM_MovablePinAssign(SWM_U1_TXD_O, 7);
Chip_SWM_MovablePinAssign(SWM_U1_RXD_I, 18);
} else {
Chip_SWM_MovablePinAssign(SWM_U2_TXD_O, 7);
Chip_SWM_MovablePinAssign(SWM_U2_RXD_I, 18);
}
/* Disable the clock to the Switch Matrix to save power */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SWM);
}
/* Board UART Initialisation function */
void Board_UART_Init(LPC_USART_T *pUART)
{
/* Enable the clock to the Switch Matrix */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
Chip_Clock_SetUARTClockDiv(1); /* divided by 1 */
if (pUART == LPC_USART0) {
/*connect the U0_TXD_O and U0_RXD_I signals to port pins(P0.4, P0.0) */
Chip_SWM_FixedPinEnable(ACMP_I1, DISABLE);
Chip_SWM_MovablePinAssign(SWM_U0_TXD_O, PIO4);
Chip_SWM_MovablePinAssign(SWM_U0_RXD_I, PIO0);
/* Enable USART0 clock */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_UART0); // FIXME UART clocking and reset need to be part of CHIP driver
/* Peripheral reset control to USART0, a "1" bring it out of reset. */
Chip_SYSCTL_PeriphReset(RESET_USART0);
}
else if (pUART == LPC_USART1) {
/*connect the U1_TXD_O and U1_RXD_I signals to port pins(P0.13, P0.14) */
Chip_SWM_MovablePinAssign(SWM_U1_TXD_O, PIO13);
Chip_SWM_MovablePinAssign(SWM_U1_RXD_I, PIO14);
/* Enable USART1 clock */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_UART1); // FIXME UART clocking and reset need to be part of CHIP driver
/* Peripheral reset control to USART1, a "1" bring it out of reset. */
Chip_SYSCTL_PeriphReset(RESET_USART1);
}
else {
/*connect the U2_TXD_O and U2_RXD_I signals to port pins(P0.13, P0.14) */
Chip_SWM_MovablePinAssign(SWM_U2_TXD_O, PIO13);
Chip_SWM_MovablePinAssign(SWM_U2_RXD_I, PIO14);
/* Enable USART2 clock */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_UART2); // FIXME UART clocking and reset need to be part of CHIP driver
/* Peripheral reset control to USART2, a "1" bring it out of reset. */
Chip_SYSCTL_PeriphReset(RESET_USART2);
}
}
/* Initializes the pUART peripheral */
void Chip_UART_Init(LPC_USART_T *pUART)
{
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_UART0);
Chip_Clock_SetUARTClockDiv(1);
/* Enable FIFOs by default, reset them */
Chip_UART_SetupFIFOS(pUART, (UART_FCR_FIFO_EN | UART_FCR_RX_RS | UART_FCR_TX_RS));
/* Default 8N1, with DLAB disabled */
Chip_UART_ConfigData(pUART, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS));
/* Disable fractional divider */
pUART->FDR = 0x10;
}
