jtagport.cpp

里面有通过JTAG口对FLASH的烧写代码

#include "stdafx.h"
#include "FluteD.h"
#include "JTAGPort.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CJTAGPort::CJTAGPort(/* int n, int rst*/)
{
	// set up variables
//	nInstLength = n;
	nCable = -1;
	error = -1;
	nResetType = -1;
	
	// setup port address
	nDataPort[0] = 0x03bc;
	nStatPort[0] = 0x03bd;
	nCtrlPort[0] = 0x03be;
	nDataPort[1] = 0x0378;
	nStatPort[1] = 0x0379;
	nCtrlPort[1] = 0x037a;
	nDataPort[2] = 0x0278;
	nStatPort[2] = 0x0279;
	nCtrlPort[2] = 0x027a;
}

CJTAGPort::~CJTAGPort()
{

}

int CJTAGPort::Setup(int rst)
{
	AddLog("\n[Setup JTAG Port]\n");

	// set reset type
	nResetType = rst;

	nCable = 1;

	return ERR_FALSE;
}


unsigned long CJTAGPort::GetIDR(int length)
{
	unsigned long id;
	
	AddLog("Get ID Register ... ");
#ifdef _LOG
	fprintf(lp, "Move to Capture_DR -> ");
#endif
	Signal(0,0); // move to Capture_DR
#ifdef _LOG
	fprintf(lp, "Move to Shift_DR -> ");
#endif
	Signal(0,0); // move to Shift_DR

	id = ScanBin(length);	

	// move to Exit1_DR already in ScanBin
#ifdef _LOG
	fprintf(lp, "Move to Update_DR -> ");
#endif
	Signal(0,1); // move to Update_DR
#ifdef _LOG
	fprintf(lp, "Move to Select_DR -> ");
#endif
	Signal(0,1); // move to Select_DR_Scan

	// STOPPED AT Select_DR_Scan

	return id;
}

int CJTAGPort::Signal(int tdi, int tms, int stop, int update)
{
	int tdo = 0;
	int data;
	data = MASK_TRT;
	if(tdi)
	{
		data |= MASK_TDI;
	}
	if(tms)
	{
		data |= MASK_TMS;
	}
	_outp(nDataPort[nCable], data);
	if(update) tdo = (_inp(nStatPort[nCable]) & MASK_TDO);
	_outp(nDataPort[nCable], (data | MASK_TCK));
	if(stop) _outp(nDataPort[nCable], data);
#ifdef _LOG
		fprintf(lp, "TDI:%1d TDO:%1d TMS:%1d STOP:%1d UPDATA:%1d\n", 
			tdi, tdo, tms, stop, update);
#endif
	return tdo;
}

int CJTAGPort::On()
{
	if(nCable >= 0)
	{
		// reset TAP
		_outp(nDataPort[nCable], MASK_TRT);		// TRST=1
		_outp(nDataPort[nCable], 0);			// TRST=0
		_outp(nDataPort[nCable], MASK_TRT);		// TRST=1

#ifdef _LOG
		fprintf(lp, "Cable power ON & nTRST -> 1\n");
#endif
		Sleep(1);

	}
	return ERR_FALSE;
}

int CJTAGPort::Off()
{
	if(nCable >= 0)
	{
		for(int i=0; i<8; i++) Signal(1,1); // move to TEST_LOGIC/RESET

		_outp(nDataPort[nCable], MASK_TRT^0xff);	// TRST=0
#ifdef _LOG
		fprintf(lp,"Cable power OFF\n");
#endif
	}
	return ERR_FALSE;
}

unsigned long CJTAGPort::ScanBin(int length, unsigned long indata)
{
	unsigned long seed, value;
	int i, end;
#ifdef _LOG
		fprintf(lp, "Scan Bin: 0x%lx, %d\n", indata, length);
#endif

	seed = (1 << (length-1));
	value = 0;
	for(i = 0, end = 0; i < length; i++)
	{
#ifdef _LOG
	fprintf(lp, "B%d -> ", i);
#endif
		value >>= 1;
		if (i==(length-1)) end = 1;
		if(Signal( (indata & 0x01) , end, end)) // IMPORTANT last signal push the both data and state
		{
			value |= seed;
		}
		indata >>= 1;
	}
	return value;
}

void CJTAGPort::Reset()
{
	for(int i=0; i<8; i++) Signal(1,1); // move to TEST_LOGIC/RESET

	Sleep(1); // wait a while

	Signal(0,0); // move to Run_Test/Idle
	Signal(0,1); // move to Select_DR_Scan
}

unsigned long CJTAGPort::ScanIR(int length, unsigned long dt)
{
	unsigned long result;

#ifdef _LOG
		fprintf(lp, "Scan IR: 0x%lx , %d\n", dt, length);
#endif

	// START FROM Select_DR_Scan

	Signal(0,1); // move to Select_IR_Scan
	Signal(0,0); // move to Capture_IR
	Signal(0,0); // move to Shift_IR

	result = ScanBin( length, dt );	

	// move to Exit1_IR already in ScanBin

	Signal(0,1); // move to Update_IR
	Signal(0,1); // move to Select_DR_Scan

	// STOP AT Select_DR_Scan

	return result;
	
}

void CJTAGPort::ScanDR(int length, int * inchain, int *outchain)
{
	
	// START FROM Select_DR_Scan
	int *pt_in;
	int *pt_out;
	int i, end;

#ifdef _LOG
	fprintf(lp, "Scan DR: %d\n", length);
#endif

	pt_in = inchain;
	pt_out = outchain;

#ifdef _LOG
	fprintf(lp, "Move to Capture_DR -> ");
#endif
	Signal(0,0); // move to Capture_DR
#ifdef _LOG
	fprintf(lp, "Move to Shift_DR -> ");
#endif
	Signal(0,0); // move to Shift_DR

	if(pt_out == NULL)
	{
		for(i = 0, end = 0; i < length; i++)
		{
#ifdef _LOG
	fprintf(lp, "D%d -> ", i);
#endif
			if(i==(length-1)) end = 1;
			Signal( *pt_in , end, end, 0); // end shift and goto Exit1_DR
			pt_in++;
		}
	}
	else if(pt_in == NULL)
	{
		for(i = 0, end = 0; i < length; i++)
		{
#ifdef _LOG
	fprintf(lp, "D%d -> ", i);
#endif
			if(i==(length-1)) end = 1;
			*pt_out = Signal( 1 , end, end, 0); // end shift and goto Exit1_DR
			pt_out++;
		}
	}
	else
	{
		for(i = 0, end = 0; i < length; i++)
		{
#ifdef _LOG
	fprintf(lp, "D%d -> ", i);
#endif
			if(i==(length-1)) end = 1;
			*pt_out =  Signal( (*pt_in != 0) , end, end); // end shift and goto Exit1_DR
			pt_in++;
			pt_out++;
		}
	}

	// move to Exit1_DR in previous data shift
#ifdef _LOG
	fprintf(lp, "Move to Update_DR -> ");
#endif
	Signal(0,1); // move to Update_DR
#ifdef _LOG
	fprintf(lp, "Move to Select_DR -> ");
#endif
	Signal(0,1); // move to Select_DR_Scan

	// STOP AT Select_DR_Scan

}

int CJTAGPort::SetRstpin(int rst)
{
	return ERR_FALSE;
}

int CJTAGPort::Dump()
{
	return 0;
}