Hi there,
This is my first mail to this forum; please be gentle
I bought the FRM010 kit(Serial LCD firmware) and I ran into a problem. I've installed all this on a prototype-board and have everything in place. However, there is no output signal at Pin 18. Instead of a high it shows a low on the probe.
I have tried to disconnect the variable potentiometer on this pin and it stays a low. Re-setting the circuit doesn't make a difference.
I have checked all pins and this is what I can see:
Pin1
Pin2
Pin3= Pulsating, incoming signal from Out0 from Picaxe 28X1
Pin4= High, goes low during reset
Pin5= Low
Pin6
Pin7
Pin8
Pin9
Pin10
Pin11
Pin12
Pin13
Pin14= High
Pin15= High and low (Pulsating at 4 MHz)
Pin16
Pin17
Pin18= Low
There is no reading on blank pins.
Shouldn't I read some pulsation on pin 16 as well? As this is the other input for the resonator?
I am puzzled. Everything else is working perfectly on my board. I've got a bank of LED's and a bank of Darlington drivers all working fine.
I would expect a high output on pin 18 but it's a low instead.
Any tips or hints are very welcome.
Kind regards,
Luc
This is my first mail to this forum; please be gentle
I bought the FRM010 kit(Serial LCD firmware) and I ran into a problem. I've installed all this on a prototype-board and have everything in place. However, there is no output signal at Pin 18. Instead of a high it shows a low on the probe.
I have tried to disconnect the variable potentiometer on this pin and it stays a low. Re-setting the circuit doesn't make a difference.
I have checked all pins and this is what I can see:
Pin1
Pin2
Pin3= Pulsating, incoming signal from Out0 from Picaxe 28X1
Pin4= High, goes low during reset
Pin5= Low
Pin6
Pin7
Pin8
Pin9
Pin10
Pin11
Pin12
Pin13
Pin14= High
Pin15= High and low (Pulsating at 4 MHz)
Pin16
Pin17
Pin18= Low
There is no reading on blank pins.
Shouldn't I read some pulsation on pin 16 as well? As this is the other input for the resonator?
I am puzzled. Everything else is working perfectly on my board. I've got a bank of LED's and a bank of Darlington drivers all working fine.
I would expect a high output on pin 18 but it's a low instead.
Any tips or hints are very welcome.
Kind regards,
Luc