/** \brief TODO init_UART_RS485_EDUCIAA Initialization method */
uint8_t init_UART_RS485_EDUCIAA(void)
{
/** \details
* TODO description init_UART_RS485_EDUCIAA
*
* \param none
*
* \return uint8_t: TBD (to support errors in the init function)
* */
/* UART initialization */
/** UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /*!< P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /*!< P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /*!< P6_2: UART0_DIR */
return TRUE;
}
void ciaaUARTInit(void)
{
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
/* Restart FIFOS: set Enable, Reset content, set trigger level */
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | UART_FCR_TRG_LEV0);
/* dummy read */
Chip_UART_ReadByte(LPC_USART0);
/* enable rx interrupt */
Chip_UART_IntEnable(LPC_USART0, UART_IER_RBRINT);
NVIC_EnableIRQ(USART0_IRQn);
RingBuffer_Init(uarts[0].rrb, rxbuf[0], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[0].trb, txbuf[0], 1, UART_BUF_SIZE);
/* UART2 (USB-UART) */
Chip_UART_Init(LPC_USART2);
Chip_UART_SetBaud(LPC_USART2, 115200);
Chip_UART_TXEnable(LPC_USART2);
Chip_SCU_PinMux(7, 1, MD_PDN, FUNC6); /* P7_1: UART2_TXD */
Chip_SCU_PinMux(7, 2, MD_PLN|MD_EZI|MD_ZI, FUNC6); /* P7_2: UART2_RXD */
Chip_UART_IntEnable(LPC_USART2, UART_IER_RBRINT);
NVIC_EnableIRQ(USART2_IRQn);
RingBuffer_Init(uarts[1].rrb, rxbuf[1], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[1].trb, txbuf[1], 1, UART_BUF_SIZE);
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
Chip_UART_IntEnable(LPC_USART3, UART_IER_RBRINT);
NVIC_EnableIRQ(USART3_IRQn);
RingBuffer_Init(uarts[2].rrb, rxbuf[2], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[2].trb, txbuf[2], 1, UART_BUF_SIZE);
}
//================================================[UART Management]==========================================================
void Board_UART_Init(LPC_USART_T *pUART)
{
if(pUART==LPC_USART0)
{
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
uart0RxBufferData.buffer = NULL;
uart0RxBufferData.size=0;
uart0RxBufferData.index=0;
uart0RxBufferData.flagNewPacket=0;
uart0RxBufferData.timeoutCounter=0;
//NVIC_SetPriority(USART0_IRQn, 1);
//NVIC_EnableIRQ(USART0_IRQn);
}
else if(pUART==LPC_USART3)
{
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_SetupFIFOS(LPC_USART3, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
uart3RxBufferData.buffer = NULL;
uart3RxBufferData.size=0;
uart3RxBufferData.index=0;
uart3RxBufferData.flagNewPacket=0;
uart3RxBufferData.timeoutCounter=0;
//NVIC_SetPriority(USART3_IRQn, 1);
//NVIC_EnableIRQ(USART3_IRQn);
}
/* Restart FIFOS: set Enable, Reset content, set trigger level */
Chip_UART_SetupFIFOS(pUART, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | UART_FCR_TRG_LEV0);
/* dummy read */
Chip_UART_ReadByte(pUART);
/* enable rx interrupt */
Chip_UART_IntEnable(pUART, UART_IER_RBRINT);
}
static void ciaaDriverUart_hwInit(void)
{
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
/* UART2 (USB-UART) */
Chip_UART_Init(LPC_USART2);
Chip_UART_SetBaud(LPC_USART2, 115200);
Chip_UART_SetupFIFOS(LPC_USART2, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART2);
Chip_SCU_PinMux(7, 1, MD_PDN, FUNC6); /* P7_1: UART2_TXD */
Chip_SCU_PinMux(7, 2, MD_PLN|MD_EZI|MD_ZI, FUNC6); /* P7_2: UART2_RXD */
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_SetupFIFOS(LPC_USART3, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
}
void serial_info_init(struct __serial_info *serial)
{
uint32_t config = 0;
/* Set Baud Rate */
Chip_UART_SetBaud(LPC_USART, serial->baud_rate);
/* Set Data Bits */
switch(serial->data_bits) {
case word_len5:
config |= UART_LCR_WLEN5;
break;
case word_len6:
config |= UART_LCR_WLEN6;
break;
case word_len7:
config |= UART_LCR_WLEN7;
break;
case word_len8:
config |= UART_LCR_WLEN8;
break;
default:
config |= UART_LCR_WLEN8;
serial->data_bits = word_len8;
break;
}
/* Set Stop Bits */
switch(serial->stop_bits) {
case stop_bit1:
config |= UART_LCR_SBS_1BIT;
break;
case stop_bit2:
config |= UART_LCR_SBS_2BIT;
break;
default:
config |= UART_LCR_SBS_1BIT;
serial->stop_bits = stop_bit1;
break;
}
/* Set Parity Bits */
switch(serial->parity) {
case parity_none:
config |= UART_LCR_PARITY_DIS;
break;
case parity_odd:
config |= (UART_LCR_PARITY_EN | UART_LCR_PARITY_ODD);
break;
case parity_even:
config |= (UART_LCR_PARITY_EN | UART_LCR_PARITY_EVEN);
break;
default:
config |= UART_LCR_PARITY_DIS;
serial->parity = parity_none;
break;
}
Chip_UART_ConfigData(LPC_USART, config);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 7, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN)); // CTS
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 17, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN)); // RTS
switch(serial->flow_control) {
case flow_none:
Chip_UART_ClearModemControl(LPC_USART, UART_MCR_RTS_CTRL | UART_MCR_AUTO_RTS_EN | UART_MCR_AUTO_CTS_EN);
Chip_UART_ClearRS485Flags(LPC_USART, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_NMM_EN | UART_RS485CTRL_OINV_1);
break;
case flow_rts_cts:
Chip_UART_ClearRS485Flags(LPC_USART, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_NMM_EN | UART_RS485CTRL_OINV_1);
Chip_UART_SetModemControl(LPC_USART, UART_MCR_AUTO_RTS_EN | UART_MCR_AUTO_CTS_EN);
break;
case flow_rs422:
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 17, (IOCON_FUNC0 | IOCON_MODE_INACT | IOCON_DIGMODE_EN)); // RTS
Chip_GPIO_SetPinState(LPC_GPIO, 0, 17, 0);
Chip_UART_ClearModemControl(LPC_USART, UART_MCR_RTS_CTRL | UART_MCR_AUTO_RTS_EN | UART_MCR_AUTO_CTS_EN);
Chip_UART_ClearRS485Flags(LPC_USART, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_NMM_EN | UART_RS485CTRL_OINV_1);
break;
case flow_rs485:
Chip_UART_ClearModemControl(LPC_USART, UART_MCR_RTS_CTRL | UART_MCR_AUTO_RTS_EN | UART_MCR_AUTO_CTS_EN);
Chip_UART_SetRS485Flags(LPC_USART, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_NMM_EN | UART_RS485CTRL_OINV_1);
break;
default:
break;
}
}
/** \brief Main function
*
* This is the main entry point of the software.
*
* \returns 0
*
* \remarks This function never returns. Return value is only to avoid compiler
* warnings or errors.
*/
int main(void)
{
/*Put initializations in a separate function hw_init(void) or something like that...*/
Chip_SCU_PinMux(1,0,MD_PUP|MD_EZI|MD_ZI,FUNC0); /* GPIO0[4], SW1 */
Chip_SCU_PinMux(1,1,MD_PUP|MD_EZI|MD_ZI,FUNC0); /* GPIO0[8], SW2 */
Chip_SCU_PinMux(1,2,MD_PUP|MD_EZI|MD_ZI,FUNC0); /* GPIO0[9], SW3 */
Chip_SCU_PinMux(1,6,MD_PUP|MD_EZI|MD_ZI,FUNC0); /* GPIO1[9], SW4 */
Chip_GPIO_SetDir(LPC_GPIO_PORT, 0,(1<<4)|(1<<8)|(1<<9),0);
Chip_GPIO_SetDir(LPC_GPIO_PORT, 1,(1<<9),0);
/* LEDs */
Chip_SCU_PinMux(2,0,MD_PUP,FUNC4); /* GPIO5[0], LED0R */
Chip_SCU_PinMux(2,1,MD_PUP,FUNC4); /* GPIO5[1], LED0G */
Chip_SCU_PinMux(2,2,MD_PUP,FUNC4); /* GPIO5[2], LED0B */
Chip_SCU_PinMux(2,10,MD_PUP,FUNC0); /* GPIO0[14], LED1 */
Chip_SCU_PinMux(2,11,MD_PUP,FUNC0); /* GPIO1[11], LED2 */
Chip_SCU_PinMux(2,12,MD_PUP,FUNC0); /* GPIO1[12], LED3 */
Chip_GPIO_SetDir(LPC_GPIO_PORT, 5,(1<<0)|(1<<1)|(1<<2),1);
Chip_GPIO_SetDir(LPC_GPIO_PORT, 0,(1<<14),1);
Chip_GPIO_SetDir(LPC_GPIO_PORT, 1,(1<<11)|(1<<12),1);
Chip_GPIO_ClearValue(LPC_GPIO_PORT, 5,(1<<0)|(1<<1)|(1<<2));
Chip_GPIO_ClearValue(LPC_GPIO_PORT, 0,(1<<14));
Chip_GPIO_ClearValue(LPC_GPIO_PORT, 1,(1<<11)|(1<<12));
/*Hardware GPIO initialization (leds, buttons ...)*/
/*UART initialization*/
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
/* UART2 (USB-UART) */
Chip_UART_Init(LPC_USART2);
Chip_UART_SetBaud(LPC_USART2, 115200);
Chip_UART_SetupFIFOS(LPC_USART2, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART2);
Chip_SCU_PinMux(7, 1, MD_PDN, FUNC6); /* P7_1: UART2_TXD */
Chip_SCU_PinMux(7, 2, MD_PLN|MD_EZI|MD_ZI, FUNC6); /* P7_2: UART2_RXD */
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_SetupFIFOS(LPC_USART3, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
/*Chip_UART_IntDisable((LPC_USART_T *)LPC_USART2, UART_IER_THREINT);*/
/* this one calls write */
/*ciaaDriverUart_txConfirmation(device);*/
/* enable THRE irq (TX) */
/* Chip_UART_IntEnable((LPC_USART_T *)LPC_USART2, UART_IER_THREINT);*/
uint64_t j;
uint8_t size = 28;
uint8_t i = 0;
uint8_t data = 0;
char message[] = "Follow the white rabbit...\n\r";
/* just send the F ...! */
/* Chip_UART_Send((LPC_USART_T *) LPC_USART2, message, index); */
/*looking for a 'a' character*/
/* perform the needed initialization here */
while(1) {
/* do nothing */
data = i = 0;
/*wait for keyboard character*/
while (data == 0)
{
data = Chip_UART_ReadByte((LPC_USART_T *)LPC_USART2);
switch (data){
case 'r':
/*Toggle Red Led*/
Chip_GPIO_SetPortToggle(LPC_GPIO_PORT,LED2_PORT,LED_2);
break;
case 'v':
/*Toggle Green Led*/
Chip_GPIO_SetPortToggle(LPC_GPIO_PORT,LED3_PORT,LED_3);
break;
case 'a':
/*Toggle Yellow Led*/
Chip_GPIO_SetPortToggle(LPC_GPIO_PORT,LED1_PORT,LED_1);
break;
default:
data = 0;
}
}
/*Send string*/
while(((Chip_UART_ReadLineStatus((LPC_USART_T *)LPC_USART2) & UART_LSR_THRE) != 0) && (i < size))
{
/* send first byte */
Chip_UART_SendByte((LPC_USART_T *)LPC_USART2, message[i]);
/* bytes written */
/*delay*/
for (j=0;j<50000;j++){
asm ("nop");
}
i++;
}
}
return 0;
}
