I'm trying to interface an Arduino UNO with an LCD display to read data from the Data Input of an ICM7232 display driver (from an NSC800 CPU). It's an 80's vintage radio test set that has a bad LCD display (Epson LD-H7927A) which is obsolete.
I've tried several of the "Serial Input" sketches with no luck. Is it a data speed, language or another issue that I'm overlooking? Any help would be appreciated.
Is it a data speed, language or another issue that I'm overlooking?
Yes, it is one of those.
Without seeing code and schematic, though, it's likely to remain a problem.
Attached is the data sheet on the ICM7232 if that would help…
ICM7231_IC-ON-LINE.CN.pdf (103 KB)
I've tried several of the "Serial Input" sketches with no luck
I don't see what the point is here - the serial ports are asynchronous (don't have clock signals), whereas this device seems to a synchronous device.
I'd try to write a simple logic analyser-type sketch to sample the clock and data lines and buffer the results, then print the results.
A similar discussion came up back in the Spring,
The results did not look promising, but you may wish to PM Xenawise just to determine how far along he got...