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/***************************************************************************
* Copyright (C) 2003-2004 Alain Gibaud <alain.gibaud@free.fr> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "direct_pic.h"
#include "common/common/misc.h"
//-----------------------------------------------------------------------------
Direct::PulseEngine::PulseEngine(::Programmer::Base &base)
: _pbase(base)
{
_clockDelay = 0;
}
BitValue Direct::PulseEngine::pulseEngine(const TQString &cmd, BitValue value)
{
_pbase.log(Log::DebugLevel::Extra, TQString("pulse engine: %1").tqarg(cmd));
TQByteArray a = toAscii(cmd);
BitValue res = 0;
for (const char *ptr=a.data(); (ptr-a.data())<int(a.count()); ++ptr)
if ( !pulse(ptr, value, res) ) qFatal("pulse engine: invalid command '%c'", *ptr);
return res;
}
// Electric signals level commands:
// UPPER case means signal High - lower case means Low
// Example: "cPCcp" means "clock-low, power on, clock high, clock low, power off".
// c/C = clock
// d/D = data
// p/P = power (vdd)
// Higher level commands:
// wnnnnn = wait nnnnn microseconds (nnnnn is decimal)
// , = a shorthand for w1
// ; or space = NOP (can be used as separator - useful in debug mode)
bool Direct::PulseEngine::pulse(const char * &cmd, BitValue, BitValue &)
{
switch (*cmd) {
case ';':
case ' ':
_pbase.log(Log::DebugLevel::Max, "NOP");
break;
case 'c':
_pbase.log(Log::DebugLevel::Max, "CLOCK L");
hardware().setPin(Clock, Low);
break;
case 'C':
_pbase.log(Log::DebugLevel::Max, "CLOCK H");
hardware().setPin(Clock, High);
break;
case 'd':
_pbase.log(Log::DebugLevel::Max, "DATA L");
hardware().setPin(DataOut, Low);
break;
case 'D':
_pbase.log(Log::DebugLevel::Max, "DATA H");
hardware().setPin(DataOut, High);
break;
case 'p':
_pbase.log(Log::DebugLevel::Max, "VDD Off");
hardware().setPin(Vdd, Off);
Port::usleep(10000);
break;
case 'P':
_pbase.log(Log::DebugLevel::Max, "VDD On");
hardware().setPin(Vdd, On);
// wait 10ms for ALL devices because some programmers (or target board) have capacitors to charge
Port::usleep(10000);
break;
case 'w': {
uint n = 0;
for(; *(cmd+1) && isdigit((int)*(cmd+1)); ++cmd)
n = (n * 10) + *(cmd+1) - '0';
_pbase.log(Log::DebugLevel::Max, "WAIT " + TQString::number(n) + " micro-sec.");
Port::usleep(n);
break;
}
case ',':
_pbase.log(Log::DebugLevel::Max, "WAIT 1 micro-sec");
Port::usleep(1);
break;
default: return false;
}
return true;
}
//-----------------------------------------------------------------------------
Direct::PicDeviceSpecific::PicDeviceSpecific(::Programmer::Base &base)
: ::Programmer::PicDeviceSpecific(base), PulseEngine(base)
{}
// Electric signals level commands:
// UPPER case means signal High - lower case means Low
// b/B = burn (vpp)
bool Direct::PicDeviceSpecific::pulse(const char *&cmd, BitValue value, BitValue &res)
{
switch (*cmd) {
case 'b':
log(Log::DebugLevel::Max, "VPP Off");
hardware().setPin(Vpp, Off);
Port::usleep(10); // 10us
break;
case 'B':
log(Log::DebugLevel::Max, "VPP On");
hardware().setPin(Vpp, On);
Port::usleep(100000); // 100ms
break;
default: return PulseEngine::pulse(cmd, value, res);
}
return true;
}
bool Direct::PicDeviceSpecific::setPowerOnVddFirst()
{
setPowerOff();
switch (hardware().type()) {
case Normal:
if ( hardware().isGroundPin(Vdd) ) { // some programmer cannot change Vdd independently
pulseEngine("B"); // charge capacitor to have high Vdd
pulseEngine("bB"); // turn off Vpp briefly, Vpp on
} else pulseEngine("PB");
break;
case EPEToolkitMK3:
pulseEngine("B"); // put MCLR at 0V
pulseEngine("bP"); // put MCLR on multiplexer and turn multiplexer to 12V
break;
}
return true;
}
bool Direct::PicDeviceSpecific::setPowerOnVppFirst()
{
setPowerOff();
pulseEngine("BP");
return true;
}
bool Direct::PicDeviceSpecific::setPowerOff()
{
pulseEngine("cdpb"); // turn off Vpp after Vdd to prevent running device
pulseEngine("w50000"); // to be on the safe size with multiple on/off
return true;
}
bool Direct::PicDeviceSpecific::setTargetPowerOn(bool on)
{
pulseEngine(on ? "P" : "p");
return true;
}
//-----------------------------------------------------------------------------
// Higher level commands:
// S = send data word
// R = read data word
// r = read byte
// knn = send 6 or 4 bits command nn to PIC (nn is decimal)
bool Direct::Pic8DeviceSpecific::pulse(const char *&cmd, BitValue value, BitValue &res)
{
switch (*cmd) {
case 'S':
log(Log::DebugLevel::Max, "SEND " + toHexLabel(value, 4));
send_word(value);
break;
case 'R':
log(Log::DebugLevel::Max, "Read Word");
res = get_word();
break;
case 'r':
log(Log::DebugLevel::Max, "Read Byte");
res = get_byte();
break;
case 'k': {
uint n = 0;
for(; *(cmd+1) && isdigit((int)*(cmd+1)); ++cmd)
n = (n * 10) + *(cmd+1) - '0';
log(Log::DebugLevel::Max, "SEND cmd " + TQString::number(n));
send_cmd(n);
break;
}
default: return PicDeviceSpecific::pulse(cmd, value, res);
}
return true;
}
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