串口移植失败

只看该作者 · 2014-7-30 00:53

void
UARTSend(const uint8_t *pui8Buffer, uint32_t ui32Count)
{
bool staus=true;
//
// Loop while there are more characters to send.
//
while(ui32Count--)
{
staus=UARTCharPutNonBlocking(UART2_BASE, *pui8Buffer++);
}
   if(staus)
{
LED_Blink(GREEN);

}
else
{
LED_Blink(RED);
}
}

void
ConfigureUART(void)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART2);

GPIOPinConfigure(GPIO_PD6_U2RX);//ÅäÖÃÄÚÉè¹Ü½ÅÓ³Éä
GPIOPinConfigure(GPIO_PD7_U2TX);
GPIOPinTypeUART(GPIO_PORTD_BASE, GPIO_PIN_6 | GPIO_PIN_7);//¹Ü½ÅÅäÖÃÎª´®¿ÚËùÐè¹¦ÄÜ

//
// Use the internal 16MHz oscillator as the UART clock source.
//
//UARTClockSourceSet(UART0_BASE, UART_CLOCK_PIOSC);
   //UARTClockSourceSet(UART0_BASE, UART_CLOCK_SYSTEM);

UARTConfigSetExpClk(UART2_BASE, ROM_SysCtlClockGet(), 115200,
                        (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
                           UART_CONFIG_PAR_NONE));
}

int main(void)
{

//SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);//ÆµÂÊ=400/2/4=50M
ROM_SysCtlClockSet(SYSCTL_SYSDIV_2_5|SYSCTL_USE_PLL|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ);//ÆµÂÊ=400/2/2.5=80M
   //ROM_SysCtlClockSet(SYSCTL_SYSDIV_1|SYSCTL_USE_OSC|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ); //16M
   PORT_Configuration
   ConfigureUART();
   //GPIOIntTypeSet(KEY_PORT_BASE, ALL_KEY, GPIO_LOW_LEVEL);
   //GPIOPinIntEnable(KEY_PORT_BASE, ALL_KEY);
   //IntEnable(INT_GPIOF);

for (; ; )
{
   if(KEY_LEFT==ROM_GPIOPinRead(KEY_PORT_BASE, ALL_KEY))
   UARTSend((uint8_t *)"what fuck !!", 12);
   else
   {if(KEY_RIGHT==ROM_GPIOPinRead(KEY_PORT_BASE, ALL_KEY))
   UARTSend((uint8_t *)"and you ? !!", 12);
   else
LED_Blink(BLUE);
   }
}
}
UARTO 有用，移植到  UART2 就不行了；求建议。  下面调试成功的代码。
void
UARTSend(const uint8_t *pui8Buffer, uint32_t ui32Count)
{
bool staus=true;
//
// Loop while there are more characters to send.
//
while(ui32Count--)
{
staus=UARTCharPutNonBlocking(UART0_BASE, *pui8Buffer++);
}
   if(staus)
{
LED_Blink(GREEN);

}
else
{
LED_Blink(RED);
}
}

void
ConfigureUART(void)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);

GPIOPinConfigure(GPIO_PA0_U0RX);//配置内设管脚映射
GPIOPinConfigure(GPIO_PA1_U0TX);
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);//管脚配置为串口所需功能

//
// Use the internal 16MHz oscillator as the UART clock source.
//
//UARTClockSourceSet(UART0_BASE, UART_CLOCK_PIOSC);
   //UARTClockSourceSet(UART0_BASE, UART_CLOCK_SYSTEM);

UARTConfigSetExpClk(UART0_BASE, ROM_SysCtlClockGet(), 115200,
                        (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
                           UART_CONFIG_PAR_NONE));
}

int main(void)
{

//SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);//频率=400/2/4=50M
ROM_SysCtlClockSet(SYSCTL_SYSDIV_2_5|SYSCTL_USE_PLL|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ);//频率=400/2/2.5=80M
   //ROM_SysCtlClockSet(SYSCTL_SYSDIV_1|SYSCTL_USE_OSC|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ); //16M
   PORT_Configuration
   ConfigureUART();
   //GPIOIntTypeSet(KEY_PORT_BASE, ALL_KEY, GPIO_LOW_LEVEL);
   //GPIOPinIntEnable(KEY_PORT_BASE, ALL_KEY);
   //IntEnable(INT_GPIOF);

for (; ; )
{
   if(KEY_LEFT==ROM_GPIOPinRead(KEY_PORT_BASE, ALL_KEY))
   UARTSend((uint8_t *)"what fuck !!", 12);
   else
   {if(KEY_RIGHT==ROM_GPIOPinRead(KEY_PORT_BASE, ALL_KEY))
   UARTSend((uint8_t *)"and you ? !!", 12);
   else
LED_Blink(GREEN);
   }

}
}