求助下！为什么出现expected ')' before '! ' token这个错误啊！

2015-03-30 09:55:41 9.9k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

学霸1999 墨衍会员 · AI 创作全网分发关注 + 加入社区

error：expected declaration specifiers or '...' before '&' token的解决最近，在给字符设备驱动globalmem增加代码，实现其只能被一个进程打开的功能时，遇到了一个错误error：expected declaration specifiers or '...' before '&' token，周末折腾了两天都没有思路。周一的时候总算解决了。现总结如下： 1、原globalmem设备驱动已编译调试通过。 2、为实现只能被一个进程打开... 阅读详情

代码我贴在这里麻烦大神解答下！万分感谢

#include <stdio.h>
#include "platform.h"
#include "axi_pwm.h"
#include "xparameters.h"
#include "xgpio.h"
#include "xil_printf.h"

//void print(char *str);
#define GPIO_BITWIDTH 8
#define GPIO_DEVICE_ID XPAR_AXI_GPIO_0_DEVICE_ID//device ID
#define LED_DELAY 10000000
#define LED_MAX_BLINK 0x1
#define LED_CHANNEL 1
#define printf xil_printf
#define PWM_BASEADDR XPAR_AXI_PWM_0_S00_AXI_BASEADDR
XGpio Gpio;
XGpio GpioOutput;

int GpioMarquee (u16 DeviceId, u32 GpioWidth)
{
volatile int Delay;
u32 LedBit;
u32 LedLoop;
int Status;
Status = XGpio_Initialize(&GpioOutput, DeviceId);
if (Status ! = XST_SUCCESS) //就是在这里提示有错！
{
return XST_FAILURE;
}
XGpio_SetDataDirection(&GpioOutput, LED_CHANNEL, 0x0);
XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 0x0);
for (LedBit = 0x0; LedBit < GpioWidth; LedBit ++){
for(LedLoop = 0; LedLoop < LED_MAX_BLINK; LedLoop ++){
XGpio_DiscreteWrite(&GpioOutput,LED_CHANNEL,
1 << LedBit);
for (Delay = 0; Delay < LED_DELAY; Delay ++);
XGpio_DiscreteClear(&GpioOutput, LED_CHANNEL,
1 << LedBit);
for (Delay = 0; Delay < LED_DELAY; Delay ++);
}
}
return XST_SUCCESS;
}

int main()
{
init_platform();

print("Hello World\n\r");
AXI_PWM_mWriteReg(PWM_BASEADDR,
AXI_PWM_S00_AXI_SLV_REG0_OFFSET,10000);
AXI_PWM_mWriteReg(PWM_BASEADDR,
AXI_PWM_S00_AXI_SLV_REG1_OFFSET, 0x80000000 + 5000);
u32 status;
status = GpioMarquee (GPIO_DEVICE_ID,GPIO_BITWIDTH);
if (status == 0)print("SUCESS!.\r\n");
else printf("FAILED.\r\n");

return 0;
}

...全文