请教一个用结构体数组作为函数形参的问题

hkys_lxh

结构体申明：

struct HMI_PAGE{

  u8 SlaveAddr;

  u8 FunID;

  uint16_t StartAddr;

  u8 Number;

};

static const struct HMI_PAGE HMIpage01[READ_PAGE01_CNT]=

{

 {0x01,0x03,136,2},

 {0x01,0x03,164,2},

 {0x01,0x03,168,1}

};
函数：

void ReadSlave(struct HMI_PAGE HMI_Page)

{

 switch(HMI_Page.FunID)

 {

  case 0x03:Read_Slave03(HMI_Page.SlaveAddr,HMI_Page.StartAddr,HMI_Page.Number);

  break;

  case 0x01:Read_Slave01(HMI_Page.SlaveAddr,HMI_Page.StartAddr,HMI_Page.Number);

  break;

  default:

  break; 

 }

}

void PPPReadSlave(struct HMI_PAGE *HMI_Page)

{

 switch(HMI_Page->FunID)

 {

  case 0x03:Read_Slave03(HMI_Page->SlaveAddr,HMI_Page->StartAddr,HMI_Page->Number);

  break;

  case 0x01:Read_Slave01(HMI_Page->SlaveAddr,HMI_Page->StartAddr,HMI_Page->Number);

  break;

  default:

  break; 

 }

}
采用值传递没问题：ReadSlave(HMIpage01);
采用地址传递有问题：PPPReadSlave(&HMIpage01);
keil 编译：提示类型不一样
..\user\K600.C(882): error:  #167: argument of type "const struct HMI_PAGE *" is incompatible with parameter of type "struct HMI_PAGE *"

sixear

回复【楼主位】hkys_lxh:
---------------------------------
"const struct HMI_PAGE *"   "struct HMI_PAGE *" 这两个一样一样的，补一个const就不报错了。

hkys_lxh

有用了，多谢多谢

正点原子

加强制转换.