I received by display shield yesterday, so I thought I would try a few experiments. Like I tried the GigaCameraDisplay example, which worked, which I mentioned over on the Teensy forum: Teensy 4.1 or Arduino GIGA R1 | Teensy Forum (pjrc.com) But did not like that the image was rotated 90 degrees…

Today I was playing around some more with the picture viewer and added an experiment that creates a GFX Canvas. I copied the Adafruit Canvas16 and have it do SDRAM malloc instead of normal malloc. if when I pause the sketch, and hit c it toggles on or off using the canvas. Where all of the deco…

Wow. are you writing most of the code in this? Amazing but overwhelming. What would help the novices (me) would be some Giga + Display bare bones code that will save screen or a jpeg, etc, to sdram. Too hard to follow all the functions. I have a day job unrelated to this field. :upside_down_face:

[image] JGordonJones: I'm trying to get it to start reading from a specific directory and draw the jpeg's therein In the code you will see things like: #ifdef CS_SD if (!(g_devices_started & SD_DRIVE)) { Serial.println("calling SDBEGIN"); if (SD.begin(SD_CONFIG)) { g_…

That's basically what I tried, but would apparently rewind to the beginning of the directory I chose, and draw same jpeg over and over... I would call the function like this: void loop() { fetchDirFiles("Jpg800x480L"); } Then: void fetchDirFiles(char* DirName) { // don't process unless time…

I put fetchDirFiles("Jpg800x480L"); in void setup() instead of void loop(). Program stopped after drawing first jpeg. So instead of rewinding, it was looping.

[image] JGordonJones: fetchDirFiles("Jpg800x480L"); Sorry not sure what that is...

In case any of this is interesting to anyone... I put a copy of all of my Giga specific test sketches up onto a github project. Will put a copy of GIGA specific libraries there as well. But for example the TFT picture viewer is now up at: Arduino_GIGA-stuff/sketches/tft_picture_view_sd_giga_shie…

Thanks for sharing, KurtE. Will take a look this weekend. BTW, What's the model of your camera? Looks much better than mine.

KurtE: Figured out a way to read a specific directory in your sketch, 'tft_picture_view_sd_giga_shield' with minimal changes. Draws images from SD or USB. Add this line before void setup(): char dirUSB[MAX_FILENAME_LEN]; Add this into void setup() at the end: #ifdef CS_SD char* dirName = "/Jp…

I did have some code I did using MDMA/DCMI chaining on the Giga to rotate while blitting, I can't seem to find it now though! I originally did it for LVGL but it didn't perform well on small areas, large areas it was good though. I will have a better look tomorrow... p.s. I have found some notes …

GIGA with display shield and OV7670

Official Hardware Mega GIGA R1 WiFi

Merlin513 February 17, 2024, 5:47pm 20

If you get a chance can you post your notes. Running into some issues with speed on the display shield in different rotations see: Anyway to speed up the display (GFX) - Hardware / GIGA Display Shield - Arduino Forum by @KurtE

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GIGA with display shield and OV7670

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