I'm not sure if anyone needs this or wants it, but I couldn't find the solution and it might save someone futzing about.
I use the sparkfun FTDI adapters all the time.
To get them to work with the bootstrap loader on the FG461x experimented board;
Wiring detail:
Adapter <-> Experimenters Board
DTR <-> JTAG-11
RTS <-> JTAG-7
RX <-> H2-1
TX <-> H2-2
(Note: JTAG pin 1 is on the outside of the board but the silkscreen shows it on the inside)
To make this work (here is the trick) you need to invert both DTR >and< RTS from BSLDemo.exe. So;
Using the >depreciated< BSL demo program sources.
Recompile with the line
level = !level;
added to >both< functions SetRSTpin() and SetTESTpin() in bslcomm.c as follows;
void SetRSTpin(BOOL level)
/* Controls RST/NMI pin (0: GND; 1: VCC) */
{
//if (level == TRUE)
// comDCB.fDtrControl = DTR_CONTROL_ENABLE;
//else
// comDCB.fDtrControl = DTR_CONTROL_DISABLE;
level = !level;
comDCB.fDtrControl = level ? DTR_CONTROL_ENABLE : DTR_CONTROL_DISABLE;
SetCommState(hComPort, &comDCB);
} /* SetRSTpin */
void SetTESTpin(BOOL level)
/* Controls TEST pin (0: VCC; 1: GND) */
{
//if (level == TRUE)
// comDCB.fRtsControl = RTS_CONTROL_ENABLE;
//else
// comDCB.fRtsControl = RTS_CONTROL_DISABLE;
level = !level;
comDCB.fRtsControl = level ? RTS_CONTROL_ENABLE : RTS_CONTROL_DISABLE;
SetCommState(hComPort, &comDCB);
} /* SetTESTpin */
This will then work perfectly...
Enjoy
