• 状态
  • 已锁定 已锁定
  • 回复 1 回复
  • 订户 29 订户
  • 视图 703 视图
  • 用户 0 会员在此处
选项
选项
相关

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

controlsuite的HVACI_Sensorless例程

user5770821
Intellectual 840 points


void C2(void) //  SPARE
//----------------------------------------
{
    DcBusVolt = _IQmpy(_IQ12toIQ(AdcResult.ADCRESULT7),_IQ(1.2625));  // DC Bus voltage meas.
    pi_spd.Ref = DcBusVolt_Ref;
    pi_spd.Fbk = DcBusVolt;
    PI_MACRO(pi_spd);
#define   _IQ12toIQ(A) ((long) (A) << (GLOBAL_Q - 12))

DcBusVolt = _IQmpy(_IQ12toIQ(AdcResult.ADCRESULT7),_IQ(1.2625)); 这个语句的执行过程是什么，将AdcResult.ADCRESULT7左移12位（GLOBAL_Q默认为24），AdcResult.ADCRESULT7左移12位不是0吗？