void UART2_57600(void)
{
// Disable UART Receive/Transmit
UARTDisable(UART2_BASE, UART_TX | UART_RX);
// Configure UART Baud 57600
UARTConfigSet(UART2_BASE, 57600, UART_CONFIG_SAMPLE_RATE_DEFAULT | UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_1);
// Enable UART Receive and Transmit
UARTEnable(UART2_BASE, UART_TX | UART_RX);
}
//============================================================================//
//== UART初始化函数 ==//
//============================================================================//
//==入口参数: 无 ==//
//==出口参数: 无 ==//
//==返回值: 无 ==//
//============================================================================//
void UARTInit(void)
{
SysCtlPeripheralEnable(GPIO_PERIPH); //使能UART所在GPIO端口
SysCtlPeripheralEnable(UART_PERIPH); //使能UART外设
GPIOPinTypeUART(GPIO_USE_BASE, GPIO_PINS); //使能UART所在引脚
UARTConfigSet(UART_USE_BASE, BAUDRATE, UART_CONFIG_WLEN_8|
UART_CONFIG_STOP_ONE|
UART_CONFIG_PAR_NONE);
UARTEnable(UART_USE_BASE); //使能UART
}
void Init_UART0(int baud, int buffer_size)
{
xtEventCallback UART0_INT_HANDLE = USART0IntHandler;
// Enable GPIO and UART Clock
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
// Remap UART pin to GPIO Port UART0_RX --> PA2 UART0_TX --> PA1
xSPinTypeUART(UART0RX, PA1);
xSPinTypeUART(UART0TX, PA2);
// Set UART clock
SysCtlPeripheralClockSourceSet(SYSCTL_PERIPH_UART0_S_MCGPLLCLK_2);
// Disable UART Receive/Transmit
UARTDisable(UART0_BASE, UART_TX | UART_RX);
// Configure UART Baud 115200
UARTConfigSet(UART0_BASE, baud, UART_CONFIG_SAMPLE_RATE_DEFAULT | UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_1);
if (OSSemCreate(0, &SerialTX0) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
// Só cria fila se for passado um tamanho maior que 0
if (buffer_size){
if (OSQueueCreate(buffer_size, &Serial0) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
}
UARTIntEnable(UART0_BASE, UART_INT_R);
UARTIntCallbackInit(UART0_BASE, UART0_INT_HANDLE);
// Enable UART Receive and Transmit
UARTEnable(UART0_BASE, UART_TX | UART_RX);
xIntEnable(28);
}
void Init_UART2(void)
{
xtEventCallback UART2_INT_HANDLE = USART2IntHandler;
// Enable GPIO and UART Clock
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART2);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
// Remap UART pin to GPIO Port UART0_RX --> PA2 UART0_TX --> PA1
xSPinTypeUART(UART2RX, PE23);
xSPinTypeUART(UART2TX, PE22);
// Set UART clock
SysCtlPeripheralClockSourceSet(SYSCTL_PERIPH_UART0_S_MCGPLLCLK_2);
// Disable UART Receive/Transmit
UARTDisable(UART2_BASE, UART_TX | UART_RX);
// Configure UART Baud 115200
UARTConfigSet(UART2_BASE, 9600, UART_CONFIG_SAMPLE_RATE_DEFAULT | UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_1);
if (OSSemCreate(0, &SerialTX2) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
if (OSQueueCreate(128, &Serial2) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
UARTIntEnable(UART2_BASE, UART_INT_R);
UARTIntCallbackInit(UART2_BASE, UART2_INT_HANDLE);
// Enable UART Receive and Transmit
UARTEnable(UART2_BASE, UART_TX | UART_RX);
xIntEnable(30);
}
static void vSerialInit( void )
{
/* Enable the UART. GPIOA has already been initialised. */
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
UART signals. */
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
/* Configure the UART for 8-N-1 operation. */
UARTConfigSet( UART0_BASE, mainBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
/* We dont want to use the fifo. This is for test purposes to generate
as many interrupts as possible. */
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~mainFIFO_SET;
/* Enable both Rx and Tx interrupts. */
HWREG( UART0_BASE + UART_O_IM ) |= ( UART_INT_TX | UART_INT_RX );
IntEnable( INT_UART0 );
}
static void prvSetupHardware( void )
{
/* Setup the PLL. */
SysCtlClockSet( SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ );
/* Setup the push button. */
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
GPIODirModeSet(GPIO_PORTC_BASE, mainPUSH_BUTTON, GPIO_DIR_MODE_IN);
GPIOIntTypeSet( GPIO_PORTC_BASE, mainPUSH_BUTTON,GPIO_FALLING_EDGE );
IntPrioritySet( INT_GPIOC, configKERNEL_INTERRUPT_PRIORITY );
GPIOPinIntEnable( GPIO_PORTC_BASE, mainPUSH_BUTTON );
IntEnable( INT_GPIOC );
/* Enable the UART. */
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
UART signals. */
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
/* Configure the UART for 8-N-1 operation. */
UARTConfigSet( UART0_BASE, mainBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
/* We don't want to use the fifo. This is for test purposes to generate
as many interrupts as possible. */
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~mainFIFO_SET;
/* Enable Tx interrupts. */
HWREG( UART0_BASE + UART_O_IM ) |= UART_INT_TX;
IntPrioritySet( INT_UART0, configKERNEL_INTERRUPT_PRIORITY );
IntEnable( INT_UART0 );
/* Initialise the LCD> */
OSRAMInit( false );
OSRAMStringDraw("www.FreeRTOS.org", 0, 0);
OSRAMStringDraw("LM3S811 demo", 16, 1);
}
void vSerialInit( void )
{
/* Create the queue used to communicate between the UART ISR and the Comms
Rx task. */
xCommsQueue = xQueueCreate( commsRX_QUEUE_LEN, sizeof( portCHAR ) );
/* Enable the UART. GPIOA has already been initialised. */
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
UART signals. */
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
/* Configure the UART for 8-N-1 operation. */
UARTConfigSet( UART0_BASE, commsBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
/* We dont want to use the fifo. This is for test purposes to generate
as many interrupts as possible. */
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~commsFIFO_SET;
/* Enable both Rx and Tx interrupts. */
HWREG( UART0_BASE + UART_O_IM ) |= ( UART_INT_TX | UART_INT_RX );
IntEnable( INT_UART0 );
}
void UART_example(void)
{
unsigned int i = 0;
char Rec = 0;
//
// Configure System clock
//
xSysCtlClockSet(48000000, xSYSCTL_OSC_MAIN | xSYSCTL_XTAL_8MHZ);
SysCtlDelay(1000000);
//
// Enable GPIO/UART Clock
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//
// Remap UART pin to GPIO Port UART1_RX --> PC3 UART1_TX --> PC4
xSPinTypeUART(UART1RX, PC3);
xSPinTypeUART(UART1TX, PC4);
//
// Disable UART Receive/Transmit
//
UARTDisable(UART1_BASE, UART_TX | UART_RX);
//
// Configure UART Baud 9600 8-N-1
//
UARTConfigSet(UART1_BASE, 9600, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE |
UART_CONFIG_STOP_1);
//
// Enable UART Receive/Transmit
//
UARTEnable(UART1_BASE, UART_TX | UART_RX);
//
// print out welcome information
//
i = 0;
while(Begin[i] != '\0')
{
UARTCharPut(UART1_BASE, Begin[i++]);
}
//
// Echo user's input information
//
while((Rec = UARTCharGet(UART1_BASE)) != '\n')
{
UARTCharPut(UART1_BASE, Rec);
}
//
// print out run over information
//
i = 0;
while(End[i] != '\0')
{
UARTCharPut(UART1_BASE, End[i++]);
}
while(1);
}
void UART_example(void)
{
unsigned int i = 0;
//
// Configure System clock
//
xSysCtlClockSet(48000000, xSYSCTL_OSC_MAIN | xSYSCTL_XTAL_8MHZ);
SysCtlDelay(1000000);
// Note: Defore call UART0 Function, you must call SysCtlPeripheralClockSourceSet Function.
// SYSCTL_PERIPH_UART0_S_MCGFLLCLK, SYSCTL_PERIPH_UART0_S_MCGPLLCLK_2,
// SYSCTL_PERIPH_UART0_S_OSCERCLK, SYSCTL_PERIPH_UART0_S_MCGIRCLK,
// For UART1/2, just comment it
SysCtlPeripheralClockSourceSet(SYSCTL_PERIPH_UART0_S_MCGPLLCLK_2);
//
// Enable GPIO/UART Clock
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
//
// Remap UART pin to GPIO Port UART1_RX --> PC3 UART1_TX --> PC4
xSPinTypeUART(UART0RX, PA1);
xSPinTypeUART(UART0TX, PA2);
//
// Disable UART Receive/Transmit
//
UARTDisable(UART0_BASE, UART_TX | UART_RX);
//
// Configure UART Baud 115200 8-N-1
//
UARTConfigSet(UART0_BASE, 115200, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE |
UART_CONFIG_STOP_1);
//
// Enable UART Receive/Transmit
//
UARTEnable(UART0_BASE, UART_TX | UART_RX);
//
// print out welcome information
//
i = 0;
while(Begin[i] != '\0')
{
UARTCharPut(UART0_BASE, Begin[i++]);
}
//
// Echo user's input information
//
while((Rec = UARTCharGet(UART0_BASE)) != '\n')
{
UARTCharPut(UART0_BASE, Rec);
}
//
// print out run over information
//
i = 0;
while(End[i] != '\0')
{
UARTCharPut(UART0_BASE, End[i++]);
}
while(1);
}
//*****************************************************************************
//
//! Initialize the UART module and send characters to the terminal
//!
//! \param None
//!
//! This function initializes the UART including clock source, enables RX and TX.
//! Prints the welcome message and echos characters.
//!
//! \return none
//
//*****************************************************************************
void UART_example_freedomKL25(void)
{
unsigned int i = 0;
unsigned char Rec;
//
// Configure System clock
//
xSysCtlClockSet(48000000, xSYSCTL_OSC_MAIN | xSYSCTL_XTAL_8MHZ);
SysCtlDelay(1000000);
//
// Enable GPIO and UART Clock
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
//
// Remap UART pin to GPIO Port UART0_RX --> PA2 UART0_TX --> PA1
//
xSPinTypeUART(UART0RX, PA1);
xSPinTypeUART(UART0TX, PA2);
//
// Set UART clock
//
SysCtlPeripheralClockSourceSet(SYSCTL_PERIPH_UART0_S_MCGPLLCLK_2);
//
// Disable UART Receive/Transmit
//
UARTDisable(UART0_BASE, UART_TX | UART_RX);
//
// Configure UART Baud 115200
//
UARTConfigSet(UART0_BASE, 115200, UART_CONFIG_SAMPLE_RATE_15 | UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_1);
//
// Enable UART Receive and Transmit
//
UARTEnable(UART0_BASE, UART_TX | UART_RX);
//
// Print out welcome information
//
i = 0;
while(Begin[i] != '\0')
{
UARTCharPut(UART0_BASE, Begin[i++]);
}
//
// Echo user's input information. End if 0xD (CR)
//
while((Rec = UARTCharGet(UART0_BASE)) != 0xD)
{
UARTCharPut(UART0_BASE, Rec);
}
//
// print out last message
//
i = 0;
while(End[i] != '\0')
{
UARTCharPut(UART0_BASE, End[i++]);
}
while(1);
}
