topic Re: eGUI ssd1963 driver in Other NXP Products

eGUI ssd1963 driver

leb — Mon, 16 Jan 2012 22:43:58 GMT

On another post (a while ago) it was asked if there was a eGUI driver for the ssd1963 chip. I have coded one which I would be happy to share if anyone wants it. I am using a NewHaven 7" Display with satisfactory results. eGUI certainly enabled me to put a professional face on my project in short order. Thank you, whoever.

Re: eGUI ssd1963 driver

Toe — Wed, 18 Jan 2012 00:18:56 GMT

I would like to see your's. I ended up writing one too that works well for my project, but I never got the SetOrientation to work properly. I don't think I'll ever need to change that, but I'd like to see what I missed when I was rushing through that.

I'd be happy to post mine as well if anyone is interested given the warnings above.

Re: eGUI ssd1963 driver

kristies1 — Thu, 19 Jan 2012 02:53:16 GMT

I would like to se the ssd1963 also, I am trying to write one for eGUI also using a 7" display

Re: eGUI ssd1963 driver

Toe — Thu, 19 Jan 2012 06:55:04 GMT

Like I mentioned, the orientation setting isn't right. It only works in landscape, so make sure you have D4D_SetOrientation(D4D_ORIENT_LANDSCAPE); some where after initializing.

Re: eGUI ssd1963 driver

leb — Fri, 20 Jan 2012 01:15:34 GMT

Here's mine. Please note the LEB_EXTENSIONS macro at the start of the .c. You'll most likely need to set that to 0. I tested my SetOrientation() with this driver for Landscape and Landscape180; both worked. As you can understand I did not want to have to define a new screen just to test the Portrait modes. However, I created another program, Bluescreen, to develop, debug, the code that went into the driver. That worked in all 4 modes for what it's worth. It appears the the max attachments is 3 so the source for Bluscreen is attached to another post

Take care

Re: eGUI ssd1963 driver

leb — Fri, 20 Jan 2012 01:20:10 GMT

Bluescreen attachments. This was coded to run in Internal RAM so it's outside of eGUI. To make it run you'd need a lot of support code.

Re: eGUI ssd1963 driver

kristies1 — Wed, 25 Jan 2012 06:15:31 GMT

Thanks to all, it works!

Re: eGUI ssd1963 driver

WalterLim — Fri, 27 Jan 2012 03:22:44 GMT

I had the same problem with SSD1963 for changing between landscape and portrait.

Your driver code helps me a lot. Thanks.

Re: eGUI ssd1963 driver

Toe — Fri, 27 Jan 2012 21:49:04 GMT

leb's functions for the orientation work well for me. I went back and tested those with my product and was able to see the screen flip/rotate properly.

Re: eGUI ssd1963 driver

donw — Thu, 16 Feb 2012 10:37:43 GMT

I need some help with driving the SSd1963 graphic IC...

I have it connected to ports on a 'JM60 micro.

I want to operate in '8 bit' mode (so D8..D15 not used).

What is the correct sequence of data byte strobing to the IC to issue a Command?

Even though the IC only uses 8bit commands do I still have to send 16 bits as per:

RD high WR high

CD low

put high byte command

CS low

WR low.. high

CS high

and repeat for low byte of command

and then repeat the above for each16 bit parameter(s) of the command..

Re: eGUI ssd1963 driver

Toe — Fri, 17 Feb 2012 00:24:14 GMT

Yes, take a look at the initialization in my driver above. The D4DLCD_Init_SSD1963 function all initialization is done with 8bit values.

All commands are 8 bit values followed by data bytes. The data is read in 8 bits at a time.

So send your command:

dc low

cs low

cmd byte

pulse wr

cs high

dc high

Send any data required for that command 8 bits at a time msb first:

cs low

data byte

pulse wr

cs high

You can leave RD set until you want to do a read.

Just use the d4dlcdhw_gpio8080_8b driver and all this is done for you.

Re: eGUI ssd1963 driver

leb — Sun, 04 Mar 2012 20:51:09 GMT

Hi,

Sorry to be so slow in reponding. I did not setup email to know when someone posted to this chain.

I think the answer to your question is command 0xf0 of the SSD1963 - set_pixel_data_interface, page 78 of the manual. It states "Set the pixel data format to 8-bit / 9-bit / 12-bit / 16-bit / 16-bit(565) / 18-bit / 24-bit in the parallel host processor
interface. This command is used for display data only, the command format is always 8 bit.". It then goes on to list the formats. You want the parameter to be 0x00 - 8 bit. So commands are always 8 bit, but they may require additional 8 bit cycles to supply all the parameters. For example, 0x0F requires a cycle for the command and another cycle for the parameter 0x00. When supplying pixel data you will need sufficient cycles to supply all the bits of the pixel. eGUI maxs at 5-6-5 I believe, so each pixel requires 2 cycles (16 bits).

Hope I have this correct

Re: eGUI ssd1963 driver

darkicmarkic — Tue, 11 Sep 2012 12:46:20 GMT

Hi,

just registered to this forum. I am having problems with SSD1963 and portrait orientation, landscape works just fine.

Read through this topic but i don't see any download link or attachment that contains code you mentioned earlier.

Am I missing something elementary?

Thanks in advance

Re: eGUI ssd1963 driver

Toe — Tue, 11 Sep 2012 13:57:15 GMT

Looks like the recent update to the forums removed file attachments. That's unfortunate and will probably cause problems for many others stumbling on old discussions.

I don't have the original code posted, but I have my code with additions from leb's code to fix the issues with orientation setting. I haven't used this in a few months, so your mileage may vary.

Not sure how to post files any more, but here's a link to where you can grab it.

Dropbox - d4d_ssd1963.zip

Re: eGUI ssd1963 driver

darkicmarkic — Wed, 12 Sep 2012 07:02:36 GMT

Thank you for your effort.

Looking at the code it appears that I have already set Address Mode register correctly (0x36), so there must be something else that I am missing.

As far as i can tell from the datasheet all you need to do to change orientation is to change value of Address Mode register (0x36)?

Re: eGUI ssd1963 driver

Toe — Wed, 12 Sep 2012 12:51:13 GMT

Did you verify your SetWindow function too?

Re: eGUI ssd1963 driver

darkicmarkic — Wed, 17 Oct 2012 14:24:10 GMT

You guessed it right, that was the culprit. All it took was a little trial and error and datasheet reading.

I managed to solve this but didn't get around to post until now.

Display now works as expected in all orientations (0, 90, 180 and 270)

Thank you again

Re: eGUI ssd1963 driver

VuPhung — Wed, 20 Feb 2013 11:58:36 GMT

Dear Ryan,

I'm doing eGUI with ssd1963 and tsc2046-touch driver. Do you have tsc2046 driver is suitable with eGUI?

Thanks,

Vu Phung

Re: eGUI ssd1963 driver

Toe — Thu, 28 Feb 2013 14:03:45 GMT

I have only used the adc interface for touch. Maybe the egui devs are planning on adding support for spi touch controllers?

Re: eGUI ssd1963 driver

joelesco — Wed, 25 Sep 2013 11:21:18 GMT

Hi,

I'm sorry to re-open this subject but I have a question about the driver for the SSD1963. It's compatible with every size of display or just for the 7" ?

If not, could you explain which part of code I need to modify for a 4.3" display ?

I'm french and my english is not really good so I apologize for the form of sentence !

Thanks