声明与“HALL_Obj Hall_M1”不兼容

Question

我需要在德州仪器 (TI) 项目中编写此评论中解释的代码（使用 Code Composer Studio）：

//this is in motor1_drive.c:
// Enable MOTOR1_HALL_CAL pre-defined symbols, run the motor with FAST for angle calibration
// Copy hall_M1.thetaCalBuf[] to hallAngleBuf[]
// 1->1, 2->2, 3->3, 4->4, 5->5, 6->6, 6->0
// Disable MOTOR1_HALL_CAL pre-defined symbols after calibration for normal operation
                                    // 6           1              2
                                    // 3           4              5
                                    // 6

//I've tried this but an error (one for every line below) exist:
//**declaration is incompatible with "const float32_t hallAngleBuf[7]"**
const float32_t hallAngleBuf[7] = { 0, 0, 0, 0, 0 , 0, 0 };
hallAngleBuf[0] = hall_M1.thetaCalBuff[0]; //I've tried only the first element copy

考虑一下：

//this is in hall.h:
typedef struct _HALL_Obj_
{
    float32_t speedSwitch_Hz;      // Hz
    uint32_t  timeStampCAP;        //
    float32_t thetaBuff[7];         // 1~6 are valid value
    float32_t thetaHall_rad;        //
    float32_t thetaDelta_rad;       //
    float32_t thetaHall_pu;         //
#ifdef HALL_CAL
    float32_t thetaCalBuff[7];               //
#endif  //HALL_CAL
} HALL_Obj;

我已经启用/禁用了预定义符号，这是从项目属性中完成的

Answer 1

这声明了一个 const 数组：

const float32_t hallAngleBuf[7] = { 0, 0, 0, 0, 0 , 0, 0 };

因此你不能像下面这样给它赋值：

hallAngleBuf[0] = hall_M1.thetaCalBuff[0];

删除

const

，它应该可以工作。