TMS320F28335: f2803xdrvlib.h调用中出现epwm重复定义的问题

then and

Part Number: TMS320F28335
Other Parts Discussed in Thread: CONTROLSUITE

您好，在做bldc电机控制，我将f2803xdrvlib.h内容，移植至F28335环境，出现以下错误，但在2803x工程中为什么不报错。

Description Resource Path Location Type
#10056 symbol "_ePWM" redefined: first defined in "./BLDCSensoredMain.obj"; redefined in "./source/f28335bldcpwm.obj" BLDC_Sensored_v1.0_Func C/C++ Problem

其实就是用这个定义引起的

volatile struct EPWM_REGS *ePWM[] =
{ &EPwm1Regs, //intentional: (ePWM[0] not used)
&EPwm2Regs,
&EPwm3Regs,
&EPwm4Regs,
&EPwm5Regs,
&EPwm6Regs,
};

我应该怎么正确使用

4 年多前

0 Susan Yang 4 年多前

TI__Guru**** 252096 points

then and 说：
#10056 symbol "_ePWM" redefined: first defined in

根据错误提示，是重复定义了。您在BLDCSensoredMain和 source/f28335bldcpwm文件内都定义了？

then and 说：
其实就是用这个定义引起的

volatile struct EPWM_REGS *ePWM[] =

这个是定义在哪里的？

0 then and 4 年多前回复 Susan Yang

Prodigy 30 points

f28335bldcpwm.c的一部分

#include "f2833xbmsk.h"
#include "f28335drvlib.h"
#include "PeripheralHeaderIncludes.h"
#include "f28335bldcpwm.h"
#include "DSP2833x_EPwm_defines.h"

void BLDCPWM_INIT_MACRO(int ch1,int ch2,int ch3,PWMGEN *v);
void BLDCPWM_MACRO(int ch1,int ch2,int ch3,PWMGEN *v);
void BLDCPWM_Protection_MACRO(int ch1,int ch2,int ch3,PWMGEN *v);

void
BLDCPWM_INIT_MACRO(int ch1,int ch2,int ch3,PWMGEN *v)
{
/* Setup Sync*/ \
(*ePWM[ch1]).TBCTL.bit.SYNCOSEL = 0; \
(*ePWM[ch2]).TBCTL.bit.SYNCOSEL = 0; \
(*ePWM[ch3]).TBCTL.bit.SYNCOSEL = 0; \
\
/* Allow each timer to be sync'ed*/ \
(*ePWM[ch1]).TBCTL.bit.PHSEN = 1; \
(*ePWM[ch2]).TBCTL.bit.PHSEN = 1; \
(*ePWM[ch3]).TBCTL.bit.PHSEN = 1; \

在f28335drvlib.h中定义的，内容如下：

#include "DSP2833x_Device.h"

// Used to indirectly access all EPWM modules
typedef EPWM_REGS *ePWM[] =
{ &EPwm1Regs, //intentional: (ePWM[0] not used)
&EPwm2Regs,
&EPwm3Regs,
&EPwm4Regs,
&EPwm5Regs,
&EPwm6Regs,
};

// Used to indirectly access eQEP module
volatile struct EQEP_REGS *eQEP[] =
{ &EQep1Regs,
&EQep2Regs,
};

// Used to indirectly access eQEP module
volatile struct ECAP_REGS *eCAP[] =
{ &ECap1Regs,
&ECap2Regs,
&ECap3Regs,
&ECap4Regs,
&ECap5Regs,
&ECap6Regs,
};

这种方式在f2803x的历程中也是这么用的。但不报错。