void GPS_init()
{
dbg_printf("Initializing GPS module...");
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART);
MAP_GPIOPinConfigure(GPIO_PA0_U0RX);
MAP_GPIOPinConfigure(GPIO_PA1_U0TX);
MAP_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
MAP_UARTConfigSetExpClk(UART_BASE, MAP_SysCtlClockGet(), UART_SPEED, UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE);
MAP_UARTDisable(UART_BASE);
MAP_UARTTxIntModeSet(UART_BASE, UART_TXINT_MODE_EOT);
MAP_UARTIntEnable(UART_BASE, UART_INT_RX | UART_INT_TX);
MAP_IntEnable(INT_UART);
MAP_UARTEnable(UART_BASE);
MAP_UARTFIFODisable(UART_BASE);
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
//
MAP_IntEnable(INT_GPIOG);
// Настроить прерывания на PPS
MAP_GPIOIntTypeSet(GPIO_PORTG_BASE, GPIO_PIN_7, GPIO_FALLING_EDGE);
MAP_GPIOPinIntEnable(GPIO_PORTG_BASE, GPIO_PIN_7);
//
if (tn_task_create(&task_GPS_tcb, &task_GPS_func, TASK_GPS_PRI,
&task_GPS_stk[TASK_GPS_STK_SZ - 1], TASK_GPS_STK_SZ, 0,
TN_TASK_START_ON_CREATION) != TERR_NO_ERR)
{
dbg_puts("tn_task_create(&task_GPS_tcb) error");
goto err;
}
// Настроить прерывания на PPS
//MAP_IntEnable(INT_GPIOG);
//MAP_GPIOIntTypeSet(GPIO_PORTG_BASE, GPIO_PIN_7, GPIO_FALLING_EDGE);
//MAP_GPIOPinIntEnable(GPIO_PORTG_BASE, GPIO_PIN_7);
dbg_puts("[done]");
return;
err:
dbg_trace();
tn_halt();
}
Uart0::Error Uart0::config_uart() {
if (is_open())
return kPortAlreadyOpen;
uint32_t data_bits_cc3200;
switch (data_bits) {
case 5:
data_bits_cc3200 = UART_CONFIG_WLEN_5;
break;
case 6:
data_bits_cc3200 = UART_CONFIG_WLEN_6;
break;
case 7:
data_bits_cc3200 = UART_CONFIG_WLEN_7;
break;
case 8:
data_bits_cc3200 = UART_CONFIG_WLEN_8;
break;
default:
return kUnsuportedFeature;
}
uint32_t stop_bits_cc3200;
switch (stop_bits) {
case 1:
stop_bits_cc3200 = UART_CONFIG_STOP_ONE;
break;
case 2:
stop_bits_cc3200 = UART_CONFIG_STOP_TWO;
break;
default:
return kUnsuportedFeature;
}
uint32_t parity_cc3200;
switch (parity) {
case kParityEven:
parity_cc3200 = UART_CONFIG_PAR_EVEN;
break;
case kParityMark:
parity_cc3200 = UART_CONFIG_PAR_ONE;
break;
case kParityNone:
parity_cc3200 = UART_CONFIG_PAR_NONE;
break;
case kParityOdd:
parity_cc3200 = UART_CONFIG_PAR_ODD;
break;
case kParitySpace:
parity_cc3200 = UART_CONFIG_PAR_ZERO;
break;
default:
return kUnsuportedFeature;
}
MAP_UARTConfigSetExpClk(UARTA0_BASE, 80000000, baud,
(data_bits_cc3200 | stop_bits_cc3200 | parity_cc3200));
/*
* Disable UART to modify the configuration.
* This is needed because the SetExpClk function enables the UART
*/
MAP_UARTDisable(UARTA0_BASE);
switch (flow_control) {
case kFlowControlNone:
MAP_UARTFlowControlSet(UARTA0_BASE, UART_FLOWCONTROL_NONE);
break;
case kFlowControlHardware:
/* Enable RTS/CTS Flow Control */
if (mode == kModeDuplex)
MAP_UARTFlowControlSet(UARTA0_BASE,
UART_FLOWCONTROL_TX | UART_FLOWCONTROL_RX);
if (mode == kModeRxOnly)
MAP_UARTFlowControlSet(UARTA0_BASE,
UART_FLOWCONTROL_RX);
if (mode == kModeTxOnly)
MAP_UARTFlowControlSet(UARTA0_BASE,
UART_FLOWCONTROL_TX);
break;
default:
return kUnsuportedFeature;
break;
}
/* Register Interrupt */
MAP_UARTIntRegister(UARTA0_BASE, isr);
/* Enable Interrupt */
MAP_UARTTxIntModeSet(UARTA0_BASE, UART_TXINT_MODE_EOT);
MAP_UARTIntClear(UARTA0_BASE, UART_INT_TX | UART_INT_RX);
uint32_t interrupts = 0;
if ((mode == kModeDuplex) || (mode == kModeTxOnly))
interrupts |= UART_INT_TX;
if ((mode == kModeDuplex) || (mode == kModeRxOnly))
interrupts |= UART_INT_RX;
MAP_UARTIntEnable(UARTA0_BASE, interrupts);
/* Enable UART */
MAP_UARTEnable(UARTA0_BASE);
/* Disable Fifo */
MAP_UARTFIFODisable(UARTA0_BASE);
return kOK;
}
