microblaze 串口调试
初学EDK参考网上的例程写了一段程序#include "xparameters.h"
#include "xgpio.h"
#include "xuartlite.h"
#include "xuartlite_l.h"
#include "xintc.h"
#include "xintc_l.h"
#include "xutil.h"
void uart_int_handler(void)
{
XGpio gpio;
unsigned char c;
/*till uart FIFOs are empty */
while(!XUartLite_mIsReceiveEmpty(XPAR_RS232_BASEADDR))
{
c =XUartLite_RecvByte(XPAR_RS232_BASEADDR);
XUartLite_SendByte(XPAR_RS232_BASEADDR, c);
switch(c)
{
case 0x31: XGpio_DiscreteWrite(&gpio, 1, ~0x01); break;
case 0x32: XGpio_DiscreteWrite(&gpio, 1, ~0x02); break;
case 0x33: XGpio_DiscreteWrite(&gpio, 1, ~0x04); break;
case 0x34: XGpio_DiscreteWrite(&gpio, 1, ~0x08); break;
case 0x35: XGpio_DiscreteWrite(&gpio, 1, ~0x10); break;
case 0x36: XGpio_DiscreteWrite(&gpio, 1, ~0x20); break;
case 0x37: XGpio_DiscreteWrite(&gpio, 1, ~0x40); break;
case 0x38: XGpio_DiscreteWrite(&gpio, 1, ~0x80); break;
default : break;
}
}
}
int main()
{
XUartLite RS232_Uart;
XGpio gpio;
xil_printf("--start the program test---\r\n");
XUartLite_Initialize(&RS232_Uart, XPAR_RS232_DEVICE_ID);
//initialize LED GPIO
XGpio_Initialize(&gpio, XPAR_LEDS_DEVICE_ID);
XGpio_SetDataDirection(&gpio,1,0x00);
//must enable mb_enable bit
microblaze_enable_interrupts();
XUartLite_EnableInterrupt(&RS232_Uart);
//register the isr
XIntc_RegisterHandler(XPAR_INTC_0_BASEADDR,
XPAR_XPS_INTC_0_RS232_INTERRUPT_INTR,
(XInterruptHandler)uart_int_handler,
(void *)0);
//must enable XIntc_mMasterEnable
XIntc_mMasterEnable(XPAR_INTC_0_BASEADDR);
//must enable specific interrupt(s) in the interrupt controller.
XIntc_mEnableIntr(XPAR_INTC_0_BASEADDR,XPAR_RS232_INTERRUPT_MASK);
while (1);
return 0;
}
编译后报出这样的错误
/cygdrive/c/Users/matrx/AppData/Local/Temp/cc4G89ca.o: In function `main':
/cygdrive/f/FPGA/rs_test2/rs_led.c:50: undefined reference to `XIntc_mMasterEnable'
/cygdrive/f/FPGA/rs_test2/rs_led.c:50: undefined reference to `XIntc_mEnableIntr'
/cygdrive/f/FPGA/rs_test2/rs_led.c:58: undefined reference to `XUartLite_mIsReceiveEmpty'
/cygdrive/c/Users/matrx/AppData/Local/Temp/cc4G89ca.o: In function `uart_int_handler':
/cygdrive/f/FPGA/rs_test2/rs_led.c:20: undefined reference to `XUartLite_mIsReceiveEmpty'
网上说是没有链接到库,是指没有generate libraries and BSPs吗?但是编译前我有生成库的,请高人指点 回复【楼主位】matrx2010
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那位高手做过这方面的工程,指点一下,小弟不胜感激 microblaze里使用中断外设的话,一定要用中断控制器吗(只有一个中断)? 必须要的 回复【3楼】zkf0100007
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那前辈知道我上面的程序那里出错的了吗? 你都到了编译这一步了,generate libraries and BSPs会自己做的,查一查吧,不会是你硬件没添加这个IP,编程时又引用,那肯定就不行了 不知楼主使用的EDK是那个版本,高版本的EDK已将XIntc_mMasterEnable等等的中间的m取消,变成XIntc_MasterEnable 回复【6楼】wang110
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我用的是EDK12.2,果然是这个问题,6楼太强大了! 看信息是没找到XIntc_mMasterEnable' 这些函数
应该是有些头文件没有包含吧
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