William At MyBlueRoom
New Member
I've yet to test it. Today is my Birthday and kinda busy
But I've cobbled together a simple schematic to make the Inchworm temporarily a sort of JDR style programmer. It's in TESTING and may not work but I've posted it for your study / amusement / suggestions...
You will need to hook up your blank 16F877(A) to an external programming socket on the ICD connector (CON1). And currently I'm using a 100K pulldown to GND resistor on CON1 pins 1,2 at the target device (MCLR)
It inverts most of the RS232 signals but fortuneately the Pony Prog software allows for inversion of the I/O pins on your COM port. (I'm using the JDR mode).
If I / we can get it working it might be just the thing for those of you whom cannot get their hands on a programmer for the Inchworm (ICD2) Bootstrap BL010101.HEX file.
PS don't forget I've moved my page https://www.blueroomelectronics.com, please reset your bookmarks!!!
But I've cobbled together a simple schematic to make the Inchworm temporarily a sort of JDR style programmer. It's in TESTING and may not work but I've posted it for your study / amusement / suggestions...
You will need to hook up your blank 16F877(A) to an external programming socket on the ICD connector (CON1). And currently I'm using a 100K pulldown to GND resistor on CON1 pins 1,2 at the target device (MCLR)
It inverts most of the RS232 signals but fortuneately the Pony Prog software allows for inversion of the I/O pins on your COM port. (I'm using the JDR mode).
If I / we can get it working it might be just the thing for those of you whom cannot get their hands on a programmer for the Inchworm (ICD2) Bootstrap BL010101.HEX file.
PS don't forget I've moved my page https://www.blueroomelectronics.com, please reset your bookmarks!!!