SC92F8547的PWM应用代码编译错误

只看该作者 · 2018-5-17 22:41

请高手帮忙看下是什么原因导致编译报错？
谢谢！

代码片段如下：
uint16 xdata PWM_Dutyfactor[8] _at_ 0x0740; //PWM占空比调节寄存器地址

/*****************************************************
*函数名称：void PWM_Dutyfactor_Init(PWM_Pin_TypeDef PWM_Pin,PWM_Direction_TypeDef PWM_Direction,uint16 PWM_Dutyfactor)
*函数功能：PWM占空比设置
*入口参数：PWM_Pin,PWM_Direction,PWM_Dutyfactor
*出口参数：void
*****************************************************/
void PWM_Dutyfactor_Init(PWM_Pin_TypeDef PWM_Pin,PWM_Direction_TypeDef PWM_Direction,uint16 PWM_Dutyfactor)
{
uint16 xdata PWMRD = 0x8000;
if(PWM_Direction == PWM_Direction_N)
{
PWMRD |= ((uint16)(1<<17));
}
else if(PWM_Direction == PWM_Direction_P)
{
PWMRD &= ~((uint16)(1<<17));
}
else
{
PWMRD &= ~((uint16)(1<<17));
}
PWMRD &= ~((uint16)0xC000); //第0~14位全置0
PWMRD |= ((uint16)(PWM_Dutyfactor & 0x0FFF)); //PWM_Dutyfactor的第13~16位全置0，然后与PWMRD进行位或运算
switch(PWM_Pin)
{
case PWM_Pin_40: PWM_Dutyfactor[0] = PWMRD; break;
case PWM_Pin_41: PWM_Dutyfactor[1] = PWMRD; break;
case PWM_Pin_42: PWM_Dutyfactor[2] = PWMRD; break;
case PWM_Pin_43: PWM_Dutyfactor[3] = PWMRD; break;
case PWM_Pin_50: PWM_Dutyfactor[4] = PWMRD; break;
case PWM_Pin_51: PWM_Dutyfactor[5] = PWMRD; break;
case PWM_Pin_52: PWM_Dutyfactor[6] = PWMRD; break;
case PWM_Pin_53: PWM_Dutyfactor[7] = PWMRD; break;
default: break;
}
}

编译错误输出如下：
Rebuild target 'Target 1'
assembling STARTUP.A51...
compiling main.c...
..\src\sc92f854x_pwm.c(92): error C216: subscript on non-array or too many dimensions
Target not created

只看该作者 · 2018-5-17 22:42

急，在线等哦。

只看该作者 · 2018-5-18 09:16

提示是非数组上下标或维度太多异常，但从截图的代码来看是没有错误的，应该是其它未截图的部分出现错误。。。

unsigned int xdata PWM_Dutyfactor[8]  _at_  0x740;
unsigned char PWM_Pin;
unsigned int PWMRD;
void main(void)
{
switch(PWM_Pin)
      {
            case       0:       PWM_Dutyfactor[0]       = PWMRD;       break;
            case       1:       PWM_Dutyfactor[1]       = PWMRD;       break;
            case       2:       PWM_Dutyfactor[2]       = PWMRD;       break;
            case       3:       PWM_Dutyfactor[3]       = PWMRD;       break;
            case       4:       PWM_Dutyfactor[4]       = PWMRD;       break;
            case       5:       PWM_Dutyfactor[5]       = PWMRD;       break;
            case       6:       PWM_Dutyfactor[6]       = PWMRD;       break;
            case       7:       PWM_Dutyfactor[7]       = PWMRD;       break;
            default:       break;
      }
}

Rebuild target 'Target 1'
assembling STARTUP.A51...
compiling main.c...
linking...
Program Size: data=12.0 xdata=16 code=113
creating hex file from "FullResources"...
"FullResources" - 0 Error(s), 0 Warning(s).
Build Time Elapsed:  00:00:00