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gLCD 7789 & SPI component clash on ESP32
Posted: Thu Oct 14, 2021 4:05 pm
by jollybv
Hi Guys
I have a problem with the Initializing of the SPI component and the gLCD ST7789 what happens is that when I Initialize the gLCD before the SPI component then the gLCD works and the SPI component dose not work, if i Initialize in the revers order I have the opposite the SPI component works and the gLCD stops.
I'm not sure but I think the two SPI are clashing
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Fri Oct 15, 2021 1:17 pm
by BenR
Hello,
Are the two SPI components using different SPI channels or are they on the same channel?
Can you post a quick example and I'll investigate for you.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Fri Oct 15, 2021 2:18 pm
by jollybv
Hi Ben
no they using the same SPI just different CS I'll make a quick program
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Fri Oct 15, 2021 3:40 pm
by jollybv
Hi Ben I have sent you a privet message with the programs as i did not have enough time to create an example and the programs will be in the market when in done with them.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Fri Oct 15, 2021 4:54 pm
by BenR
Hello,
I see the problem and think this one is going to need some thought. I'll see what I can do to help you get this working. It's something I've been wanting to do for a while as it should make the code more compact and efficient when using multiple components using the same peripheral.
I'll keep you posted.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Sat Oct 16, 2021 6:05 am
by jollybv
Thanks Ben
I will give it a try and let you know
I found the file but not sure how to use it. I think I am using it as I'm using the ESP32 Wroom chip
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Mon Oct 18, 2021 4:00 pm
by BenR
Hello,
Right sorry the last file didn't work, it caused a compile error. However I think I may have gotten somewhere with this now.
Copy the attached file into your "C:\ProgramData\MatrixTSL\FlowcodeV9\CAL\ESP" folder and hopefully when you compile your project the problem will go away.
Let me know and if this works ok then I'll push it to the update system and consider doing the same for other peripherals / chip packs.
What happens now is if there is multiple instances of a SPI peripheral then we will redirect all subsiquent calls to the peripheral functions to the initial instance of the peripheral code.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Tue Oct 19, 2021 7:43 am
by jollybv
Hi Ben
It is still not working the problem is still the same wont work with multiple instances of a SPI
When I initialize before the gLCD initialize the screen works but second SPI component stops.
- UART Debug.png (3.97 KiB) Viewed 3750 times
When I initialize after the gLCD Initialize the screen stops working SPI component starts to work.
- UART Debug 2 MAX6675.png (8.99 KiB) Viewed 3750 times
Also when i try to use the DS18B20 probe it starts to work but then stops
- UART Debug 1 DS18.png (7.28 KiB) Viewed 3750 times
I see there was a Library update which I have done but still not working.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Thu Nov 11, 2021 12:53 pm
by BenR
Hello,
Sorry this one fell off my radar a little. I've got another idea and so I'll have a go at that for you and see if we can get this working.
Re: gLCD 7789 & SPI component clash on ESP32
Posted: Thu Nov 11, 2021 2:55 pm
by BenR
Hello,
I think I may have bottomed the problem for you now and I've pushed the latest fix to the library update system.