[参考译文] TMS320F2800157：锁步示例和调试

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Other Parts Discussed in Thread: LAUNCHXL-F2800157, C2000WARE

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https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1277575/tms320f2800157-lockstep-example-and-debugging

器件型号：TMS320F2800157
主题中讨论的其他器件：LAUNCHXL-F2800157、 C2000WARE

您好！

我们正在使用尝试的功能在 LAUNCHXL-F2800157上运行锁步。您能否提供任何示例、因为 c2000ware 没有相同的示例。

我正在尝试使用 TINA 仿真运算放大器的

LCMCPU1Regs.LCM_CONTROL.bit.CMP1_ERR_FORCE = 1；

但它不会进入 PIE 矢量中配置的 ISR。

参考函数的附加代码：

#include "f28x_project.h"
#include "string.h"



__interrupt void lockstep_ISR(void)
{
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP_FAIL = 1;			// clear LCM compare fail flag
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_PASS = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_PASS = 1;
	GpioDataRegs.GPBTOGGLE.bit.GPIO49 = 1;
}


void lockstep_init()
{
	CpuSysRegs.LSEN.bit.Enable = 1;					// enable lockstep module
	CpuSysRegs.CPUSYSLOCK2.bit.LSEN = 1;			// lock lsen register
	LCMCPU1Regs.LCM_CONTROL.bit.CMPEN = 1;			// enable lockstep redundant module

	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP_FAIL = 1;			// clear flags
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_PASS = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_PASS = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.STDONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.STPASS = 1;

	LCMCPU1Regs.LCM_CONTROL.bit.STEN = 1;					// start LCM self test
	__asm("  NOP");
	while(LCMCPU1Regs.LCM_STATUS.bit.STACTIVE);
	if(LCMCPU1Regs.LCM_STATUS.bit.STDONE)
	{
		if((LCMCPU1Regs.LCM_STATUS.bit.STPASS) == 0)
		{

			// lcm_self_test fail_function();
		}
	}

	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP_FAIL = 1;			// clear flags
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP1_ERR_FORCE_PASS = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_DONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP2_ERR_FORCE_PASS = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.STDONE = 1;
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.STPASS = 1;


	return;
}

void pie_init()
{
	NmiIntruptRegs.NMICFG.bit.NMIE = 1;					// enable NMI intt
	LCMCPU1Regs.LCM_STATUS_CLEAR.bit.CMP_FAIL = 1;		// clear LCM compare fail flag
	NmiIntruptRegs.NMIFLGCLR.bit.LSCMPERR = 1;			// force clear NMI lockstep flag
	NmiIntruptRegs.NMIFLGCLR.bit.NMIINT = 1;			// force clear NMIINT flag
	NmiIntruptRegs.NMIWDPRD = 0xFFFF;					// NMI watchdog top value

	IER = 0;
	IFR = 0;

	InitPieCtrl();

	InitPieVectTable();

	PieVectTable.NMI_INT = &lockstep_ISR;

	EINT;
	ERTM;

	return;
}

int main(void)
{

	memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);
	InitFlash();

	InitSysCtrl();
	DINT;

	EALLOW;
	GpioCtrlRegs.GPBLOCK.bit.GPIO49 = 0;		// unlock led pin
	GpioCtrlRegs.GPBDIR.bit.GPIO49 = 1;		// set as output for led


//	GpioDataRegs.GPBTOGGLE.bit.GPIO49 = 1;

	lockstep_init();

//	GpioDataRegs.GPBTOGGLE.bit.GPIO49 = 1;

	pie_init();

	EDIS;



	while(1)
	{

		for(uint16_t j = 0; j<=2; j++)
		{

			for(uint32_t i = 0; i <= 5000000; i++ );		// random delay or processing
		}


//		GpioDataRegs.GPBTOGGLE.bit.GPIO49 = 1;


		LCMCPU1Regs.LCM_CONTROL.bit.CMP1_ERR_FORCE = 1;

//		if((LCMCPU1Regs.LCM_STATUS.bit.CMP1_ERR_FORCE_PASS) == 1)
//		{
//			GpioDataRegs.GPBTOGGLE.bit.GPIO49 = 1;
//		}


	}
	return 0;
}

2 年多前