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1996-12-11
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580b
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18 lines
RS-232 Programmer by Jens D. Madsen
Command line arguments
COMn where n is 1..4 selects COMn
HIGH TxD high when eeprom programming (com84 compatibility)
REMOVE Remove driver from memory
BYPASS Bypass Windows port virtualization
Original Hardware Schematics
See JDM84.GIF.
EEPROM programming by using pin 5-8 and 11-14.
In Circuit Programming
Use /MCLR, RB7, RB6 and Vss (Gnd) for In Circuit Programming.
Automatic 'GO' function is added by using a diode and a
resistor (680 ohm) between Vcc and /MCLR:
1N4148
Vcc ---|>|-----[680E]--- /MCLR