TI中文支持网新人求教，根据UART-ECHO改的，但是不出数据
#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/fpu.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/sysctl.h"
#include "driverlib/uart.h"
#include "driverlib/rom.h"
#include "driverlib/pin_map.h"
float a[3],w[3],angle[3],T;
unsigned char Re_buf[11],counter=0;
unsigned char sign;
//串口接收中断服务程序
void UARTIntHandler(void)
{
unsigned long ulStatus;
//获取中断状态
ulStatus = ROM_UARTIntStatus(UART1_BASE, true);
//清除中断标志
ROM_UARTIntClear(UART1_BASE, ulStatus);
//直到串口FIFO中没有数据时才退出循环
while(ROM_UARTCharsAvail(UART1_BASE))
{
//读串口接收的字符并回发
Re_buf[counter]=ROM_UARTCharsAvail(UART1_BASE);//不同单片机略有异
if(counter==0&&Re_buf[0]!=0x55) return; //第 0 号数据不是帧头，跳过
counter++;
if(counter==11) //接收到 11 个数据
{
counter=0; //重新赋值，准备下一帧数据的接收
sign=1;
}
}
}
int main(void)
{
//使能FPU
FPUEnable();
FPULazyStackingEnable();
//设置时钟直接使用外部晶振
ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
//使能用到的外设
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1);
//配置PA0和PA1为串口0引脚
ROM_GPIOPinTypeUART(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//使能中断
ROM_IntMasterEnable();
//配置UART0为115200,8-N-1
ROM_UARTConfigSetExpClk(UART0_BASE, ROM_SysCtlClockGet(), 115200, (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE ));
//使能串口中断
ROM_IntEnable(INT_UART1);
ROM_UARTIntEnable(UART1_BASE, UART_INT_RX | UART_INT_RT);
UARTIntHandler ();
extern unsigned char Re_buf[11],counter;
extern unsigned char sign;
while(1)
{
if(sign)
{
sign=0;
if(Re_buf[0]==0x55) //检查帧头
{
switch(Re_buf [1])
{
case 0x51:
a[0] = (short)(Re_buf [3]<<8| Re_buf [2])/32768.0*16;
a[1] = (short)(Re_buf [5]<<8| Re_buf [4])/32768.0*16;
a[2] = (short)(Re_buf [7]<<8| Re_buf [6])/32768.0*16;
T = (short)(Re_buf [9]<<8| Re_buf [8])/340.0+36.25;
break;
case 0x52:
w[0] = (short)(Re_buf [3]<<8| Re_buf [2])/32768.0*2000;
w[1] = (short)(Re_buf [5]<<8| Re_buf [4])/32768.0*2000;
w[2] = (short)(Re_buf [7]<<8| Re_buf [6])/32768.0*2000;
T = (short)(Re_buf [9]<<8| Re_buf [8])/340.0+36.25;
break;
case 0x53:
angle[0] = (short)(Re_buf [3]<<8| Re_buf [2])/32768.0*180;
angle[1] = (short)(Re_buf [5]<<8| Re_buf [4])/32768.0*180;
angle[2] = (short)(Re_buf [7]<<8| Re_buf [6])/32768.0*180;
T = (short)(Re_buf [9]<<8| Re_buf [8])/340.0+36.25;
break;
}
}
}
}
while(1) {}
}
xyz549040622：
1.你的中断函数注册了没有
2.感觉你的串口的配置部分有问题，建议参考这部分代码看看，串口中断单独测试过了没有呢？
//***************************************************************************** // // uart_echo.c - Example for reading data from and writing data to the UART in //an interrupt driven fashion. // // Copyright (c) 2012-2014 Texas Instruments Incorporated.All rights reserved. // Software License Agreement //// Texas Instruments (TI) is supplying this software for use solely and // exclusively on TI's microcontroller products. The software is owned by // TI and/or its suppliers, and is protected under applicable copyright // laws. You may not combine this software with "viral" open-source // software in order to form a larger program. //// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS. // NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT // NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY // CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL // DAMAGES, FOR ANY REASON WHATSOEVER. //// This is part of revision 2.1.0.12573 of the EK-TM4C123GXL Firmware Package. // //*****************************************************************************#include <stdint.h> #include <stdbool.h> #include "inc/hw_ints.h" #include "inc/hw_memmap.h" #include "driverlib/debug.h" #include "driverlib/fpu.h" #include "driverlib/gpio.h" #include "driverlib/interrupt.h" #include "driverlib/pin_map.h" #include "driverlib/rom.h" #include "driverlib/sysctl.h" #include "driverlib/uart.h"//***************************************************************************** // //! \addtogroup example_list //! <h1>UART Echo (uart_echo)</h1> //! //! This example application utilizes the UART to echo text.The first UART //! (connected to the USB debug virtual serial port on the evaluation board) //! will be configured in 115,200 baud, 8-n-1 mode.All characters received on //! the UART are transmitted back to the UART. // //*****************************************************************************//***************************************************************************** // // The error routine that is called if the driver library encounters an error. // //***************************************************************************** #ifdef DEBUG void __error__(char *pcFilename, uint32_t ui32Line) { } #endif//***************************************************************************** // // The UART interrupt handler. // //***************************************************************************** void UARTIntHandler(void) {uint32_t ui32Status;//// Get the interrrupt status.//ui32Status = ROM_UARTIntStatus(UART0_BASE, true);//// Clear the asserted interrupts.//ROM_UARTIntClear(UART0_BASE, ui32Status);//// Loop while there are characters in the receive FIFO.//while(ROM_UARTCharsAvail(UART0_BASE)){//// Read the next character from the UART and write it back to the UART.//ROM_UARTCharPutNonBlocking(UART0_BASE,ROM_UARTCharGetNonBlocking(UART0_BASE));//// Blink the LED to show a character transfer is occuring.//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2);//// Delay for 1 millisecond.Each SysCtlDelay is about 3 clocks.//SysCtlDelay(SysCtlClockGet() / (1000 * 3));//// Turn off the LED//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0);} }//***************************************************************************** // // Send a string to the UART. // //***************************************************************************** void UARTSend(const uint8_t *pui8Buffer, uint32_t ui32Count) {//// Loop while there are more characters to send.//while(ui32Count--){//// Write the next character to the UART.//ROM_UARTCharPutNonBlocking(UART0_BASE, *pui8Buffer++);} }//***************************************************************************** // // This example demonstrates how to send a string of data to the UART. // //***************************************************************************** int main(void) {//// Enable lazy stacking for interrupt handlers.This allows floating-point// instructions to be used within interrupt handlers, but at the expense of// extra stack usage.//ROM_FPUEnable();ROM_FPULazyStackingEnable();//// Set the clocking to run directly from the crystal.//ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_16MHZ);//// Enable the GPIO port that is used for the on-board LED.//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);//// Enable the GPIO pins for the LED (PF2).//ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_2);//// Enable the peripherals used by this example.//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);//// Enable processor interrupts.//ROM_IntMasterEnable();//// Set GPIO A0 and A1 as UART pins.//GPIOPinConfigure(GPIO_PA0_U0RX);GPIOPinConfigure(GPIO_PA1_U0TX);ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);//// Configure the UART for 115,200, 8-N-1 operation.//ROM_UARTConfigSetExpClk(UART0_BASE, ROM_SysCtlClockGet(), 115200,(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |UART_CONFIG_PAR_NONE));//// Enable the UART interrupt.//ROM_IntEnable(INT_UART0);ROM_UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);//// Prompt for text to be entered.//UARTSend((uint8_t *)"\033[2JEnter text: ", 16);//// Loop forever echoing data through the UART.//while(1){} }
jinjin：
回复 xyz549040622:
就是用这个例程改的，但是也还是进不去中断，不知道为什么。
xyz549040622：
回复 jinjin:
单独烧这个程序试试，肯定你是有什么地方没有移植到的。
