Hi Troy,

When the new batch of LCDs arrived I tried uploading the bitmaps with the version of Mogd# that was already on the computer from the last time (I think it was 1.0.26)., with the results I posted. I deleted the entire Mogd# directory and installed the freshly-downloaded version 1.0.33, same ...

Hi Troy,

I managed to upload the bitmaps, by installing the Mogd# software on a different computer.
I think it's reasonable to rule out a COM-port problem, since I can send text OK.
So it looks like a software problem of some kind with Mogd#. I had already tried uninstalling and re-installing Mogd ...

Hi Ray and Troy,

These are new units fresh out of the box, they still displayed the "Graphics in any direction" logo when I first powered them on. So I don't see how the filesystem can be full, but I can wipe it anyway just to be sure.
They have never been used in I2C.


Alex

Hello Troy,

Thanks for the reply.
I tried the manual override, same results:
- The module is not found in 'autodetect', but the baud rate is correctly detected on COM1.
- I can send text commands and they are interpreted correctly, but same thing when I try to upload an image.

I didn't expect a ...

Hi,

we've worked with the GLK-12232-25-SM a great deal in the past. We recently ordered a new batch, and are having problems uploading bitmaps to them.

I'm using MogdSharp version 1.0.33.
The PCB revision is 2.0.

If I click on "Auto detect display" it tells me there are 6 displays found: 5 on ...

Thanks very much Troy, I'll have a look into the software locking when I next get a chance.


Alex

Hello Ray,

Thanks for the reply. I don't suspect flow control to be the problem, because the data rate is very low: text only, written at 0.5Hz. Is buffer overflow really feasible?

Hi,

I'm using a GLK12232-25-SM in an application where a large number of LCD displays are written to regularly over a long duration. At the default baud rate of 19200, bits are occasionally flipped during transmission. With no error-detection on the comms protocol, weird things occasionally happen ...

Hi Troy,

I downloaded and installed the MOGD# software. Before uploading a font, I thought I'd just try displaying some text. This worked, and revived the LCD unit. I then tried again with my driver, and everything works now.

So it would appear that the LCD somehow got into a weird state, and the ...

Hi Troy,

Thanks for the response. This seems really unlikely though -- The unit has been sitting in situ for a long time, all I have ever done with it is display text (ie no mucking about with the fonts). Is it possible for the fonts to have removed themselves? Has this ever happened before?


Alex

Hi,

We have a number of "GLK12232-25-SM"s. They have all been working for a period of a couple of years, except for two which have broken. These particular two had been working correctly for quite some time.

The symptoms for the two are identical:
- I can communicate via serial with them (I ...