Discussion in "Project Help" started by    jordi    Oct 24, 2007.
Wed Oct 24 2007, 06:06 pm
#1
Hi,

I want to work with SSD1850/1 controller for a new aplication but I have some problems
with my prototype.
I can't start on it and I don't get show anything.

The LCD is of Bolymin, Inc. -> BO12864D and SSD1850/1 is of SOLOMON.

I'm programming in assembler with PIC16f886.

The datasheet of SSD1850/1 has an OTP example program but ...anything.

Please, we'd like a sample program for to begin to work with this controller.

Thanks in advance.
Wed Oct 24 2007, 08:07 pm
#2
can you please provide the datasheet which you have?
The one i am having has a sample circuit but there is no example program. So i will be waiting for the datasheet.
Just zip the file and attach it here in forum.
 jordi like this.
Thu Oct 25 2007, 08:15 am
#3
Hi Ajay,

I attach the datasheets that I have.

I hope do it well !

PS. The simple example program (better, simple commands) is in pag. 46 in ssd1851.pdf

Attachment

Thu Oct 25 2007, 10:20 am
#4
I am actually getting confused with the use of Pin E (enable). It is mentioned in the 1851 datasheet that its read enable.. anyways.. i am going to give you steps to write simple routines like command (..) and data(...) so that you can use these functions..

I don't know programming of PIC so i am just telling you the steps..

Command:
1. make R/W signal as low.
2. make D/C signal as low.
3. make E pin high.
4. make CS pin low.
5. send command to port..
7. make CS pin high.
8. make E pin low.

Data:
1. make R/W signal as low.
2. make D/C signal as high.
3. make E pin high.
4. make CS pin low.
5. send data to port..
7. make CS pin high.
8. make E pin low.

then to initialize the LCD.. just use the same commands as given in the OTP programming follow both step1 and step2... as it is only one time program.. so you just need to do it once.. in your whole program.

tell me if you feel any problem.

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