Sharp Memory LCD LS044Q7DH01

RE: Sharp Memory LCD LS044Q7DH01

erltot — Wed, 13 May 2020 11:59:57 GMT

It's based upon the app-note and it worked for me back then. I suggest you start with debugging your spi transfer then, i should not do it for you

RE: Sharp Memory LCD LS044Q7DH01

prithvi25 — Wed, 13 May 2020 11:22:55 GMT

No, the SPI transfer to the display was not successful.
I actually wanted to just glow a single-pixel or a full line. And as I said I am not good with the LCDs, so I just used your code snippet to check that as it resembles quite a lot with the App note given by SHARP.

Could you help me in with a sample code which I can use to glow just a single-pixel? It would be really helpful for me.

RE: Sharp Memory LCD LS044Q7DH01

erltot — Fri, 08 May 2020 15:00:18 GMT

Is the spi transfer to the display successful? If so, the conclusion of this post was that the connector is very fragile, I had to use a microscope to see the error

RE: Sharp Memory LCD LS044Q7DH01

prithvi25 — Fri, 08 May 2020 14:52:51 GMT

I am able to flash the code. But cannot see any changes on screen. It is basically blank.
I have never worked on any LCD. It is new to me. Kindly help me in displaying a basic test line on the LCD.

I am using NRF52840 and LS013B7DH03 LCD.
Display CS - P1.03
Display SCL - P0.12
Display MOSI - P1.09
Using SPI-1
EXMODE = L

RE: Sharp Memory LCD LS044Q7DH01

erltot — Fri, 08 May 2020 13:52:41 GMT

What seems to be the problem?

RE: Sharp Memory LCD LS044Q7DH01

prithvi25 — Fri, 08 May 2020 13:45:11 GMT

Hello,
I tried your code on LS013B7DH03 LCD by changing the LCD resolution in the code. But, it is not working. Could you please help me with this.

RE: Sharp Memory LCD LS044Q7DH01

erltot — Thu, 23 Mar 2017 16:23:05 GMT

Post is updated

RE: Sharp Memory LCD LS044Q7DH01

Wojtek — Thu, 23 Mar 2017 16:11:06 GMT

Nice, quite hard to notice that without magnifying glass.

RE: Sharp Memory LCD LS044Q7DH01

Alex — Thu, 23 Mar 2017 15:47:17 GMT

Faulty display then? I take it you supplied LS044Q7DH01 with 5V power, not 3V?

RE: Sharp Memory LCD LS044Q7DH01

erltot — Wed, 22 Mar 2017 10:32:18 GMT

Hi, thanks for your reply. No difference though.

RE: Sharp Memory LCD LS044Q7DH01

Alex — Tue, 21 Mar 2017 14:52:54 GMT

Try to reduce SPI speed to 1M