/* 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);
}
}
/**
* Configure the pinmuxing for the MultiSensor board.
*
* only the special functions are set here, default the pins are gpio.
*/
void PINMUX_Init()
{
/* Enable the clock to the Switch Matrix */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
/* DISconnect the XTALIN and XTALOUT signals to port pins(P0.8, P0.9), as these will be used for gpio purposes */
/* these are fixed location pins */
Chip_SWM_FixedPinEnable(SWM_FIXED_XTALIN, false);
Chip_SWM_FixedPinEnable(SWM_FIXED_XTALOUT, false);
/* connect the fixed reset_n pin to P0.5 */
Chip_SWM_EnableFixedPin(SWM_FIXED_RST);
/* Connect the I2C_SDA0 and I2C_SCL0 signals to port pins(P0.10, P0.11) */
/* these are fixed location pins */
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SDA);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SCL);
/* Connect the ADC0 (P0.7) and ADC1 (P0.6) */
/* these are fixed location pins */
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC0);
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC1);
/* Connect the USART0 TX & RX signals to port pins(P0.16, P0.26) */
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_U0_TXD_O, 16);
Chip_SWM_MovablePinAssign(SWM_U0_RXD_I, 26);
/* Connect the USART1 RX signal to port pins(P0.25) */
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_U1_RXD_I, 25);
/* Connect the SCT OUTPUT 1,2,3 (PWM : RGB) signal to port pin(P0.1, P0.9, P0.8) --> this is the RGB led*/
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_SCT_OUT1_O, 1);
Chip_SWM_MovablePinAssign(SWM_SCT_OUT2_O, 9);
Chip_SWM_MovablePinAssign(SWM_SCT_OUT3_O, 8);
/* make sure to disable fixed pin functionality for HUMIDITY dht22 data pin */
Chip_SWM_DisableFixedPin(SWM_FIXED_ADC10);
//Chip_SWM_MovablePinAssign(SWM_SCT_IN1_I, 13);
/* Disable the clock to the Switch Matrix to save power */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SWM);
}
/* Initialize pin muxing for SPI interface */
void Board_SPI_Init(LPC_SPI_T *pSPI)
{
/* Enable the clock to the Switch Matrix */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
if (pSPI == LPC_SPI0) {
/*
* Initialize SSP0 pins connect
* SCK0: PINASSIGN3[31:24] : Select P0.12
* MOSI: PINASSIGN4[7:0] : Select P0.14
* MISO0: PINASSIGN4[15:8]: Select P0.6
* SSEL0: PINASSIGN4[23:16] : Select P0.13
*/
Chip_SWM_FixedPinEnable(VDDCMP, DISABLE);
Chip_SWM_MovablePinAssign(SWM_SPI0_SCK_IO, PIO12);
Chip_SWM_MovablePinAssign(SWM_SPI0_MOSI_IO, PIO14);
Chip_SWM_MovablePinAssign(SWM_SPI0_MISO_IO, PIO6);
Chip_SWM_MovablePinAssign(SWM_SPI0_SSEL_IO, PIO13);
}
else {
/*
* Initialize SSP0 pins connect
* SCK1: PINASSIGN4[31:24]: Select P0.12
* MOSI1: PINASSIGN5[7:0]: Select P0.14
* MISO1: PINASSIGN5[15:8] : Select P0.6
* SSEL1: PINASSIGN5[23:16]: Select P0.13
*/
Chip_SWM_FixedPinEnable(VDDCMP, DISABLE);
Chip_SWM_MovablePinAssign(SWM_SPI1_SCK_IO, PIO12);
Chip_SWM_MovablePinAssign(SWM_SPI1_MOSI_IO, PIO14);
Chip_SWM_MovablePinAssign(SWM_SPI1_MISO_IO, PIO6);
Chip_SWM_MovablePinAssign(SWM_SPI1_SSEL_IO, PIO13);
}
/* Disable the clock to the Switch Matrix to save power */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SWM);
}
/* Set up and initialize all required blocks and functions related to the
board hardware */
void Board_Init(void)
{
QUICKJACK_IO_Init();
/* Initialize GPIO */
Chip_GPIO_Init(LPC_GPIO_PORT);
/* Initialize the LEDs */
Board_LED_Init();
// init sensor switch
SensorSwitch_Init();
/* Configure GPIO pin as input pin */
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, 0, 0);
/* MCU Tx Pin initialize */
Chip_IOCON_PinSetMode(LPC_IOCON, QUICKJACKTXPIN, PIN_MODE_INACTIVE);
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 0, QUICKJACKTXPINNUM);
Chip_GPIO_SetPinState(LPC_GPIO_PORT, 0, QUICKJACKTXPINNUM, 1);
/* MCU Rx Pin initialize */
Chip_IOCON_PinSetMode(LPC_IOCON, QUICKJACKRXPIN, PIN_MODE_INACTIVE);
/* Configure analog comparator for Manchester Rx */
Chip_SWM_FixedPinEnable(SWM_FIXED_ACMP_I1, 1);
Chip_ACMP_Init(LPC_CMP);
Chip_ACMP_SetPosVoltRef(LPC_CMP, ACMP_POSIN_ACMP_I1);
Chip_ACMP_SetNegVoltRef(LPC_CMP, ACMP_NEGIN_VLO);
Chip_ACMP_SetupVoltLadder(LPC_CMP, (15<<1), false);
Chip_ACMP_EnableVoltLadder(LPC_CMP);
Chip_ACMP_SetHysteresis(LPC_CMP, ACMP_HYS_10MV);
Chip_ACMP_SetEdgeSelection(LPC_CMP, ACMP_EDGESEL_RISING);
/* Uncomment below 2 lines to connect analog comparator output to P1_0 (not needed for normal operation) */
// Chip_SWM_FixedPinEnable(SWM_FIXED_ACMP_I2, 0);
// Chip_SWM_MovablePinAssign(SWM_ACMP_O_O, 1);
Chip_ACMP_EdgeClear(LPC_CMP);
NVIC_EnableIRQ(CMP_IRQn);
/* Disable clocks to SWM and IOCON to save power */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SWM);
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_IOCON);
}
