Thanks, Been playing with it all day and I think I have a basic understanding of how it works. Next step is setting up for a text terminal and simple graphics. I am going to only use 640x400x70 16 color mode. This...
Well it's working good...
I see the bouncing ball and background changing color when the ball hits the wall. Good quality picture even with my sloppy bread boarding. Need to find or make an adapter board.
Now to...
@jmarsh - I am building the VGA R2R ladder for use with this sketch and wanted to make sure I understand the schematic.
This is my version of it only expanded:
/* R2R ladder:
*
* GROUND <------------- 536R...
A quick question. Was using the PJRC Teensy 4.0 beta version breakout board with a couple of audio adapter version D. Cannot access SD card on audio adapter with WavFilePlayer. Tried various SPI settings with no luck....
@schlank - I have never used Platform I/O :( The error makes it look like the USBHost_t36 library is not being recognized or installed properly.
Here is a tutorial from @shawn:...
@mjs513 can probably answer this better but I believe LittleFS is it's own file system and does not use SdFat but uses FS file abstracion. So most file and directory functions that are available for the SD library are...
@mjs513 - This is impressive:) I'm going to redo my USBMonitor library using RawHID instead of SerialTransfer over USBSerial. I have it working with the RA8876 display but cannot get return handshaking values fast...
Yes it is. With the Teensy 4.0 you will need a breakout board to access USB Host functionality. There are two pads underneath the USB device connector on the bottom side of the T4.0 that provide the D+ and D- signals...
I just finished syncing and testing as well. Tested with MTP and full debug then full debug then no debug. Transferred a WAV file back and forth. Still plays. Here is some download times:
CMD:3 Filename:t.wav...
I have it uploading and downloading files consistently. Basically had to turn off MTP and all debugging. Was able to eliminate the delays as well which helps with the transfer speeds. I think the remote side was being...
Not sure if I have everything setup correctly? Arduino 1.8.19 TD1.59B2 latest USBHost_t36-USBSerial and RawHID-main.zip. Compiled remote T4.1 with RawHID setting and host T4.1 with Serial+MTP.
It's trying to work but...
@KurtE - This is so strange:) I have been playing with the same library this weekend. I have two Teensy's connected together. One is loaded with "Basic.ino" and is connected to the USB host port on the second T4.1...
We did have the AirLift working with Teensy. If you go through this long thread you will see that we had to make a lot of changes. We were using the Serial Pass Through. I do have all of the libraries that we tested and...
It's always a good way to learn:) By the way, here is the speed results of a Kingston 120G SSD drive used with a StarTech USB to SATA adapter:
Press anykey to continue
test.txt exists, removing...
Writing...
My results with the Sandisk 32G Dual.
With FASTRUN:
Initializing SD card...initialization done.
Directory listing for SD card:
EnvironmentalData/
32MEGfile.dat 32768000...
I tested on my end and could not get a failure. I am not that familiar with SD cards but it seems to me you can adjust the SPI speeds. Can't remember if it 's possible with QSPI which the built in sdcard IF uses. Will...
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