Yes. It turned out to be a bug with the Mass Storage driver. Should be fixed in Teensydruino 1.58. I say 'should' because I'm still using the workaround JIC, so I don't actually know if the bug that was fixed also...
I have been busy with other things, but finally have some time to look into this some more.
I was playing around today with Vindar's ili9341_t4 driver, and I noticed that putting the 'internal frame buffer' onto...
I have about a 1000 MCUs on order for T3.x devices that will ostensibly arrive early next year (fingers crossed). What is the future availability of the T3 bootloader looking like? I don't want to be stuck with a...
An 8 bit color palette would probably work for me. I tried very hard to get my ram1 usage down enough to fit a 480x32 16bit buffer, but couldn't do it. Lots of space left in ram2. Is it possible to have a buffer that...
I have 2 PSRAM chips on this device which I can use, but it's slow. Putting one buffer in DMAMEM and the other in normal ram, doesn't leave a whole lot of RAM1 for my UI. I'll see if I can do some changes to free up...
Double buffering with 32bit or 16bit color at 480x320 just isn't going to work on T4.1--not enough memory.
I have no shortage of digital pins for this project, so I might be better off using a parallel interface.
Thanks for the info Kurt. GTX in combination with with his ILI9431_T4 driver is crazy fast. I don't really have a good understanding of how it works, but I think it's figuring out which pixels have changed, and only...
Couldn't get the UpdateAsyncCont_Test example to work properly on T4.1. I can see "Starting up DMA Updates" in the serial monitor after I send some input, but the screen just reads "*** Press key to start ***" the...
So I did manage to get gtx working with the ILI9488 driver, but it's incredibly slow. No double buffering, no differential buffers really makes things crawl.