//======================================
// Receive a message from a message port
//======================================
void ReceiveMessage(struct MessagePort *MP, struct Message *Msg)
{
struct Message *temp;
while (MP->msgQueue == 0) {
MP->waitingProc = currentTask;
currentTask->waiting = 0x80;
BlockTask(currentTask);
SWTASKS;
}
asm("cli");
temp = MP->msgQueue;
MP->msgQueue = temp->nextMessage;
temp->nextMessage = 0;
asm("sti");
memcpy((char *)Msg, (char *)temp, sizeof(struct Message));
DeallocMem(temp);
}
void Terminal(void)
{
char data;
if (OSSemCreate(0,&sUART) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
BlockTask(th6);
};
if (OSMutexCreate(&mutexTx,6) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
BlockTask(th6);
};
if (OSQueueCreate(64, &qUART) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
BlockTask(th6);
};
//
// Enable the peripherals used by this example.
// The UART itself needs to be enabled, as well as the GPIO port
// containing the pins that will be used.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
//
// Configure the GPIO pin muxing for the UART function.
// This is only necessary if your part supports GPIO pin function muxing.
// Study the data sheet to see which functions are allocated per pin.
// TODO: change this to select the port/pin you are using
//
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
//
// Since GPIO A0 and A1 are used for the UART function, they must be
// configured for use as a peripheral function (instead of GPIO).
// TODO: change this to match the port/pin you are using
//
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Configure the UART for 115,200, 8-N-1 operation.
// This function uses SysCtlClockGet() to get the system clock
// frequency. This could be also be a variable or hard coded value
// instead of a function call.
//
UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), 115200,
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE));
UARTFIFODisable(UART0_BASE);
//
// Enable the UART interrupt.
//
ROM_IntEnable(INT_UART0);
ROM_UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
//
// Put a character to show start of example. This will display on the
// terminal.
//
UARTPutString(UART0_BASE, "Iniciou!\n\r\n\r");
while(1)
{
if(!OSQueuePend(qUART, (INT8U*)&data, 0))
{
if (data != 13)
{
UARTPutChar(UART0_BASE, data);
}else
{
UARTPutString(UART0_BASE, "\n\r");
}
}
}
}
