Major_Mess
New Member
18x is not compatible with HD4480 LCD Module?
Hi all.
I have an 18x connected to a HD4480 LCD and it has major problems. I have not found a single example on the web of anyone actually running an LCD module off an 18x, all search results return the use of the 18A. Some have updated their info to reflect the 18x being available but appear to have not actually used one. Most PICAXE users seem to be using one of the serial modules.
Has anyone successfully connected an 18x directly to an LCD module? If so how many different modules have you tried?
The circuit I have used is the same as the one here, which is the same as many others for the PICAXE 18 and 18A. The download and reset circuits are present. Originally the circuit was running on a 14M OK, but I required more memory for text so moved to an 18X I had lying around, which is Firmware 8.6.
After losing 1.5 days of my life I went and grabbed another 18x (Firmware 8.8) and it is even worse. = 2.5 days of life gone.
All power is 5v exactly and very clean.
I have breadboarded a 14M and 28x1 and used jumpers to the 18X socket, and using the same program they work perfectly.
Symptons
Unable to fully program 18X with LCD connected. Programmer starts and sometimes completes and inch or 2 of the progress bar than returns a memory error. Disconnecting the LCD enables the programming to complete and the program sometimes runs perfect straight away or will miss or have the wrong first few characters. Cycling the power will then occassionally see it continue to run OK and suddenly weirdness will happen and it will not run correctly again until a reprogram. This running OK is not consistent and generally it doesn't.
Nothing on display.
Weird characters.
Program does not stop at the same place. There is no consistency and very rarely the program does actually continue to run but with errors and it will eventually fall over.
Out of the blue the v8.6 Firmware 18x actually ran for about 6 power cycles, but this has only happened once.
----------------------
It appears to be a threshold of some sort and if it is an issue needs to be advertised as such.
From searching on the 18x it appears others have discovered "weirdness" issues in other applications with this Picaxe. Any ideas of what else it could be apart from a buggy model?
Hi all.
I have an 18x connected to a HD4480 LCD and it has major problems. I have not found a single example on the web of anyone actually running an LCD module off an 18x, all search results return the use of the 18A. Some have updated their info to reflect the 18x being available but appear to have not actually used one. Most PICAXE users seem to be using one of the serial modules.
Has anyone successfully connected an 18x directly to an LCD module? If so how many different modules have you tried?
The circuit I have used is the same as the one here, which is the same as many others for the PICAXE 18 and 18A. The download and reset circuits are present. Originally the circuit was running on a 14M OK, but I required more memory for text so moved to an 18X I had lying around, which is Firmware 8.6.
After losing 1.5 days of my life I went and grabbed another 18x (Firmware 8.8) and it is even worse. = 2.5 days of life gone.
All power is 5v exactly and very clean.
I have breadboarded a 14M and 28x1 and used jumpers to the 18X socket, and using the same program they work perfectly.
Symptons
Unable to fully program 18X with LCD connected. Programmer starts and sometimes completes and inch or 2 of the progress bar than returns a memory error. Disconnecting the LCD enables the programming to complete and the program sometimes runs perfect straight away or will miss or have the wrong first few characters. Cycling the power will then occassionally see it continue to run OK and suddenly weirdness will happen and it will not run correctly again until a reprogram. This running OK is not consistent and generally it doesn't.
Nothing on display.
Weird characters.
Program does not stop at the same place. There is no consistency and very rarely the program does actually continue to run but with errors and it will eventually fall over.
Out of the blue the v8.6 Firmware 18x actually ran for about 6 power cycles, but this has only happened once.
----------------------
It appears to be a threshold of some sort and if it is an issue needs to be advertised as such.
From searching on the 18x it appears others have discovered "weirdness" issues in other applications with this Picaxe. Any ideas of what else it could be apart from a buggy model?
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