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  • W
    Good forum posts. Cheers. Feel free to surf to my web page; کونی
  • B
    Yes, they are defined as uint32_t globally, but I did forget to change the format string. thanks.
  • J
    joepasquariello replied to the thread 2.4" LCD Guidance.
    If you search the forum for ST7789, you will find many threads and discussions of various libraries. Maybe also someone will tell you which is the "best", but you should start reading so that you know can figure out whether the screen you have is...
  • W
    I have a project using 3xADS8588SIPMR ADCs to make a 24 channel power meter. I'm trying to see how I can use FlexIO3 to read 16 bit parallel data and like the contiguous 16 bits available on this port. I'm only sampling at 20kHz and won't lose...
  • J
    jdredd posted the thread 2.4" LCD Guidance in Project Guidance.
    I was given a super cheap hand held emulater deal. Retro FC PLUS. It self is junk. But could be used to replace with a Teensy 4.1 maybe? It looks to have this screen? 24 pin connector. Looks like this @ LCD I have never done anything with...
  • snowsh
    snowsh reacted to jmarsh's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    Not if they're displays that use on-board RAM, because LCDIF is meant for direct rendering. Is it time to start trying to talk people into designing/building a HDMI encoder board?
  • snowsh
    snowsh reacted to defragster's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    Question: Does it make sense to start a new " SDRAM DevBoard 5 DIY " thread? this one at 47 pages is a bit long. Pros&Cons of course ... Vote with a (y) Like for 'new thread' or :mad:
  • J
    joepasquariello reacted to craigyb's post in the thread Framebuffers and PSRAM with Like Like.
    OK, I set MYPSRAM to 4 to allocate 4MB and I tested the jerky display and now its smooth, I will carry on testing with all displays using the PSRAM
  • J
    I think it's because elapsedMillis is a C++ object, and you're passing it to printf() as if it's an integer. I'm not much of C++ programmer, but I'm looking at the source in the T4 core, and it might work if you use the syntax t1() rather than...
  • KurtE
    KurtE reacted to mjs513's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    For those that are interested just ordered a new set of adapters for the ILI9488 parallel display by Buydisplay:
  • B
    I tried it as a macro: #define Timeit(function_call) \ do { \ elapsedMillis t1; \ function_call; \ Serial.printf(#function_call "=%d ms\n", t1); \ } while (0) But for some reason it always printed the same value no matter which...
  • B
    I had a (very incomplete) idea for a timing function. The goal would be to reduce some repetitive code when performance tuning. Usually the profiling phase of my development includes many instances of: elapsedMillis t1; somefunc()...
  • J
    Thanks again Paul. I do not believe I have any info on calculating the checksum. I will ask the seller and look for anything in what they sent to me. Just so I understand better, on ID22, is the 0xD0 (208) because in byte 3, there are 2 1s...
  • J
    I think you're unlikely to find support for a thousands separator in a printf() designed for embedded systems. I've been using printf() for a long time and had never even heard of that feature. According to my google search, it's required for...
  • PaulS
    PaulS replied to the thread Teensy 4.0 / High Voltage Heater.
    Hi Jordan, all fine here, hope you're doing well too. Had to read back the thread for a refresh... Anyway, this chinese heater looks to better documented although I see some unclearities. This is a bit strange; for ID22 the spec states Byte 2 is...
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  • B
    Should this be working? I tried the following, but the single quote between the % and the d is ignored. It prints myfunc took 537296668 instead of myfunc took 537,296,668 void test_read() {...
  • mjs513
    For those that are interested just ordered a new set of adapters for the ILI9488 parallel display by Buydisplay:
    • 1720900345506.png
  • KurtE
    KurtE replied to the thread Framebuffer for 2 or more LCDs.
    Answered in the thread:
  • wwatson
    wwatson reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    Testing with Flexio 16 bit... Ran the 8 wires between the two adapters... Most looks good, but the getRect or more likely writeRect ... looks like the colors are off Look where the color bar between sort of the filled triangle and circle... top...
  • mjs513
    mjs513 reacted to KurtE's post in the thread Framebuffers and PSRAM with Like Like.
    A couple of different ways: Somewhere global something like: EXTMEM uint16_t buf[MYPSRAM * 1024 * 1024] __attribute__((aligned(32))); and in your code before you use frame buffer to a call like: tft.setFrameBuffer(buf); Makes sense that 3...
  • mjs513
    mjs513 reacted to wwatson's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I bridged the OTG pad and center pad, Tested wireless mouse, keyboard and USB stick. All seem to work as expected. Copying files between two USB drives and SD card times are about the same as the T4.1 and MicroMod...
  • mjs513
    mjs513 reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    Testing with Flexio 16 bit... Ran the 8 wires between the two adapters... Most looks good, but the getRect or more likely writeRect ... looks like the colors are off Look where the color bar between sort of the filled triangle and circle... top...
  • mjs513
    mjs513 reacted to wwatson's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    USBHost is working good. Now to setup 16bit 8080 bus and touch screen and test. Finally, setup other SPI TFT and test...
  • mjs513
    mjs513 reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    I now have my one Parallel RA8876 moved back to the T4.1 I am using Mikes Adapter, with then my Adpater for ILI94xxx plugged into it, with a long RPI stacking header. With this added adapter I can now patch in signals to D8-D15 of the display to...
  • KurtE
    Testing with Flexio 16 bit... Ran the 8 wires between the two adapters... Most looks good, but the getRect or more likely writeRect ... looks like the colors are off Look where the color bar between sort of the filled triangle and circle... top...
    • 1720893617388.png
  • defragster
    I now have my one Parallel RA8876 moved back to the T4.1 I am using Mikes Adapter, with then my Adpater for ILI94xxx plugged into it, with a long RPI stacking header. With this added adapter I can now patch in signals to D8-D15 of the display to...
  • defragster
    defragster reacted to wwatson's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I bridged the OTG pad and center pad, Tested wireless mouse, keyboard and USB stick. All seem to work as expected. Copying files between two USB drives and SD card times are about the same as the T4.1 and MicroMod...
  • wwatson
    USBHost is working good. Now to setup 16bit 8080 bus and touch screen and test. Finally, setup other SPI TFT and test...
  • wwatson
    I bridged the OTG pad and center pad, Tested wireless mouse, keyboard and USB stick. All seem to work as expected. Copying files between two USB drives and SD card times are about the same as the T4.1 and MicroMod...
  • R
    Rezo reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    I now have my one Parallel RA8876 moved back to the T4.1 I am using Mikes Adapter, with then my Adpater for ILI94xxx plugged into it, with a long RPI stacking header. With this added adapter I can now patch in signals to D8-D15 of the display to...
  • M
    Hello, I use my Teensy 4.0 as an i2c slave to send sensor data to my raspberry PI and manage servos and neopixels. The code works most of the time but sometimes the Pi communicate with the board. is there anything in my code which might cause...
  • wwatson
    wwatson reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    I now have my one Parallel RA8876 moved back to the T4.1 I am using Mikes Adapter, with then my Adpater for ILI94xxx plugged into it, with a long RPI stacking header. With this added adapter I can now patch in signals to D8-D15 of the display to...
  • C
    craigyb replied to the thread Framebuffers and PSRAM.
    OK, I set MYPSRAM to 4 to allocate 4MB and I tested the jerky display and now its smooth, I will carry on testing with all displays using the PSRAM
  • KurtE
    I now have my one Parallel RA8876 moved back to the T4.1 I am using Mikes Adapter, with then my Adpater for ILI94xxx plugged into it, with a long RPI stacking header. With this added adapter I can now patch in signals to D8-D15 of the display to...
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  • KurtE
    KurtE replied to the thread Framebuffers and PSRAM.
    A couple of different ways: Somewhere global something like: EXTMEM uint16_t buf[MYPSRAM * 1024 * 1024] __attribute__((aligned(32))); and in your code before you use frame buffer to a call like: tft.setFrameBuffer(buf); Makes sense that 3...
  • C
    craigyb replied to the thread Framebuffer for 2 or more LCDs.
    Hi Kurte how would i go about using the PSRAM for the framebuffer, i have 8 displays attached to my T4.1 but the first 3 are ok and the rest are jumpy, I think Ive maxed out the framebuffers, but I have an 8mb PSRAM chip installed.
  • C
    I need a little help, I'm trying to connect upto 8 ST7789 IPS displays to a Teensy 4.1. so far I have 4 connected and they all initialize ok, but the first 3 run smoothly when updating, but the 4th is jumping when updating. I think I've run out...
  • J
    Hi Paul. Hope all is good with you. I put down the heater work for a few months because the weather was no longer cold. I was going to jump into it this summer and get this working before the cold comes back, so I am looking at things...
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  • I
    I would like to use Pico as a display driver for Teensy. But it turns out, while unplugging Teensy, then plugging Pico (the same USB port), then moving to the Pico sketch and uploading works flawlessly, it does not so in the other direction...
  • O
    Been requiested to build a cos play but need some advice on where to start. This is for a friday night at freddies situation. I have been reading a few threads on voice changers but still a little stuck on what is going to be the best way to...
  • PaulStoffregen
    PaulStoffregen reacted to ETMoody3's post in the thread ornament & crime beta testing with Like Like.
    Having just fallen down the Eurorack rabbit hole ( acquiring parts, building related stuff ) I am waiting to pounce when it is ready to be pounced upon.
  • T
    Great that it worked. Please share in the forum some pictures of your TFT working, for me it is feedback, since I can indirectly see how the library works in other variants of EVEx and it allows me to improve the library. A while ago I tried to...
  • M
    MarkT replied to the thread Teensy 4.1 Inputs and Outputs.
    Do you mean the audio adapter? That has one microphone input, but two two line inputs. There are other options for interfacing to microphones, and yes that would be a separate board - any I2S compatible audio chip pretty much can work. Or you...
  • B
    Wonder of wonders... in the act of trying to pare down a 1200 line program to something I could present here, I had some lucky guesses. I apologize for not posted some code for you to at least get an idea, because I realize it's almost...
  • K
    @Thundercat: Have you (or anyone else using the Arduino IDE 2.3.2 in a Mac environment) been able to verify the same findings regarding the presence/absence of the hex file in the primary sketch folder influencing whether the the "Compilation...
  • ETMoody3
    ETMoody3 replied to the thread ornament & crime beta testing.
    Having just fallen down the Eurorack rabbit hole ( acquiring parts, building related stuff ) I am waiting to pounce when it is ready to be pounced upon.
  • mjs513
    mjs513 reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    Quick note, I did another update of the branch mentioned above. I think I integrated the IRQ code and it might be working. However there appears like there might not be any current test sketches that calls the functions like...
  • mjs513
    mjs513 reacted to wwatson's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    I was wondering the same thing. The only other issue would be 8/16bit bus usage. I think DMA is only setup for 8bit and I am not sure about async...
  • mjs513
    mjs513 reacted to KurtE's post in the thread RA8876 Parallel Display Library Testing with Like Like.
    That is I updated part of your test dma to ... lcd.setRotation(0); lcd.onCompleteCB(&frame_complete_callback); } void frame_complete_callback() { Serial.println("\n*** Frame Complete Callback ***"); } void loop() { #if 1...
  • mjs513
    mjs513 reacted to wwatson's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    Thanks...
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