Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
Arne Newbie Joined: 05/01/2025 Location: GermanyPosts: 21
Posted: 05:09pm 19 Mar 2025
Copy link to clipboard
Print this post
If a printout/listing reaches the last display line all the previous lines will be deleted? or covered in „white“.
The editor is working fine. Here I can scroll up and down without any display problems.
The adapted parameters/options are :
Technical data of the display: https://www.waveshare.com/wiki/Pico-LCD-2
Has anybody an idea/hint?
Arne
matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9957
Posted: 07:09pm 19 Mar 2025
Copy link to clipboard
Print this post
Your configuration is wrong
Use OPTION SYSTEM SPI GP10,GP11,GP28 OPTION LCDPANEL ST7789_320,l,GP8,GP12,GP9,GP13 OPTION LCDPANEL CONSOLE 1,,,,NOSCROLL
This is a c..p display because they haven't wired SPI MISO from the display so the framebuffer can't be read (unlike their 2.8" display) See the manual page 92 for more info
thanks to your comment with the correct options i got this crappy display working, too. So i have a Pico W with that display working. Now i would like to add a sd card to the system. I have a spi breakout board but now i am asking myself, how i can connect that, as the display already seems to "grab" the SYSTEM SPI option. Does that mean, i cannot have the display and the sd card connected at the same time?
Do you have any recommendation how to get the sd card working in that environment?
Thanks a lot for your help!
Christian
matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9957
Posted: 06:47pm 10 Apr 2025
Copy link to clipboard
Print this post
The SDcard can share the system SPI so wire GP10, GP11, and GP28 to SD-CLK, SD-IN, and SD-OUT, Then pick any free pin for SD-CS and type OPTION SDCARD freepin. Assuming you have also wired power correctly - it should work. NB: If your SD breakout is one of the ones targeted at Arduino with 5V to 3.3V conversion it probably won't work. You need one that just wires the pins direct.