Hi everyone
I hope you are keeping well during the lockdowns. I've lost my job and possibly relationship, but at least I can use the time to work on some picaxe projects.
I'm seeing the most bizarre thing happening with my old 18X I'm programming. In a breadboard, it's fine to download a simple program. In the circuit board I've made, it says it can't find a picaxe on COM3. When I put the 18X back in the breadboard, it can program it, no issues. I program it to flash an LED, put it back in the circuit board, it flashes the LED. So, I'm guessing it's a download issue of sorts.
I'm using the same power supply, same download cable, same 18X.
Both breadboard and board have pin 4 tied to the 5V of pin 14 using a 4K7 resistor. Both show 5.04V
Pin 2 is going straight to SEROUT on the cable in both circuits.
Pin 5 of the 18X is to 0V, as is the ground pin of the download cable on both circuits.
Pin 3, of the 18X goes out to a 22K resistor. From there, it branches - one to a 10K resistor to ground (checked) and the other to the SERIN of the download cable. Ground to pin 3 of the 18X measures just over 31K on the board and breadboard.
I cannot think for the life of me why both would run a simple program fine, but only one wants to download. I've not only double-checked the download part on the board that doesn't want to dowload, I've actually soldered a fresh one to no avail.
Any ideas???
I hope you are keeping well during the lockdowns. I've lost my job and possibly relationship, but at least I can use the time to work on some picaxe projects.
I'm seeing the most bizarre thing happening with my old 18X I'm programming. In a breadboard, it's fine to download a simple program. In the circuit board I've made, it says it can't find a picaxe on COM3. When I put the 18X back in the breadboard, it can program it, no issues. I program it to flash an LED, put it back in the circuit board, it flashes the LED. So, I'm guessing it's a download issue of sorts.
I'm using the same power supply, same download cable, same 18X.
Both breadboard and board have pin 4 tied to the 5V of pin 14 using a 4K7 resistor. Both show 5.04V
Pin 2 is going straight to SEROUT on the cable in both circuits.
Pin 5 of the 18X is to 0V, as is the ground pin of the download cable on both circuits.
Pin 3, of the 18X goes out to a 22K resistor. From there, it branches - one to a 10K resistor to ground (checked) and the other to the SERIN of the download cable. Ground to pin 3 of the 18X measures just over 31K on the board and breadboard.
I cannot think for the life of me why both would run a simple program fine, but only one wants to download. I've not only double-checked the download part on the board that doesn't want to dowload, I've actually soldered a fresh one to no avail.
Any ideas???