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You can use your existing TSynth to edit the headless ones. I'm pretty sure the TSynth sends out it's controls over midi and usb, so if you connect your TSynth to the USB host port of your rack versions it should be...

I haven't run into any difficulties dynamically creating and patching audio objects, but I just do it once at startup - I don't change the connections arbitrarily during the lifetime of the program. (Is there something...

@alfrede We are waiting for the first boards. It will take a while before circuit boards or kits can be ordered. @trevorbryden The Jeannie Synth-core is a little different from TSynth. It's smaller and has 8...

Quick UPDATE :: Frame Update using FlexIO @31 fps <edit>: Now 35 minutes since posting and still running no issue at 31 fps. with : #define TFT_ILI9341 1 for >> "ILI9341_t3n.h" and this in 'F' : ...

Yes I have replaced '.' by '->'. I will try arrays of objets, it is new to me. Thaks

@all - Paul - I got github to merge your changes into mine that was in sync with @mjs513 >> Changed to using ILI9341_t3n THIS WORKS !!! >> 'f' : read a frame using FlexIO (changes hardware setup!) - EXCEPT >>...

if you want a schematic of usb-c skpang has breakout boards for T4.x canbus, they use usb-c and/or 12v car input

Super, thank you!

charging devices have power profiles for usb-c, a protocol must be communicated to allow switching to higher voltages if supported by the adaptor. power is defaulted to 5v on connection and unless you send the correct...

That covers the power from the bus on a computer. What about charging devices? and fast charging devices? Any thoughts there?

it doesnt matter as you are still limited to the 500mA current max

I had tried spi clock from 40 MHz fown to 20 MHz then finally down to 6 MHz .. and the screen is the same ..I pulled it apart tonight , but the screen is very dim.. I'll put it back together and get a screen shot .

Ok, I just sent a pull request with initial FlexIO. No DMA yet, but it should be fairly "easy" to just set up a DMA transfer which reads from that FlexIO register and writes to the buffer.

Was thinking that maybe need to lower the SPI Clock setting

Was just about to post - but the other one should have worked as well. Going to delete it - probably easier that figuring out the differences.

Should just need ILI9341_t3n library. 's' is pretty standard and seems to have always worked. The latest TMM-HB01B0-Camera is set up for 324x224 but 's' works for Sparkfun or non-Sparkfun configs. I know every...

I updated to the latest TMM-HB01B0-Camera from github, in prep to clean up my flexio stuff, but it seems I no longer get a working image from either "s" or DMA. I'll admit, I fell behind on the forum these last couple...

Pio I just got your reverb working on my synth! It sounds absolutely delightful. Thank you very much.

Is there any follow-up. Any Failure Analysis? Is this observed by others?

Probably not the problem but wanted to ask. In the .h file enum {DMABUFFER_SIZE=1280}; // 640x480 so 640*2*2 the 1280 probably needs to be changed to 324*2*2 = 1296

I am playing with the DMA code some more. I put in new command 'f' - read in one frame using DMA and then output it... It verified that the data in the frame is not coming back correctly. So digging some more.

Hello rolf! How much $ and how long until a Jeannie is in my hands here in California? I don't see them on tubeohm yet. Also, the presets seem identical to my Tsynth...how did that happen? Are they a set of known synth...

Call handle_Messages from the loop() function and try increasing the heartbeatInterval_RX as I mentioned in #2. When the messages are occurring one every 250ms, there's no need for the receive timeout to be so brief. ...

Cool. Sounds like you had fun planting - rainy and cold here so good day to stay inside.

@mjs513 yes probably the same, simply update some of the names and the like I pushed the changes up to github in my char_bounds branch, which is now part of the current Pull request back to Paul:...

Just tested the mods I just made and it works :) You want me to push it to you or you can just use what you have - probably the same since I just copied it from ILI9341_t3n

Thank you Peter. I will try to explain the problem better. The drawEFIS () procedure needs approximately 40ms to complete. It reads the values ​​of the variables, prepares the buffer and displays it on TFT. The...

Just made the changes for 8 and 4 and was going to try out - should have known better :) EDIT: Is it posted - I will give it a try

I have a version that builds with the writeRect8BPP (as well as 4 2 1 and N) So may need to grab adafruit display and try it.

WOW ... I am at a loss ...LOL .. thanks for the reply ..

Afternoon all (I think), Been outside playing (Planting Peas...) I have not fully resolved the DMA stuff yet. FYI - I pushed up a WIP of my FlexIO test code... Will test out some of my Serial drivers on...

Can you post a picture of the tearing on the display? Could be a configuration issue...

Same, 4 wire SPI.

Blackketter.. are you configured for 3 wire spi or 4 wire spi .. I'm configured for 4 wire spi

Indeed yes, can be cleaned up, mostly to make the logic more clear, its not time critical code.

Hi! I am also making a headless tsynth...its great to see it is at least possible! I'm hoping to make about four of them in a rack space. I bought and built a proper tsynth and it sounds amazing, now I get to see if I...

@KurtE Looks like we are going to have to edit the ST7789 library to add in read8pp as well since I don't think it currently supports it.

Easy answer - yes. See page 16.

Should I make the FlexIO code just read the whole 324x244 data? That would be simpler...

Thankyou for the reply .. I'm struggling with the Ra8876 display which is 7.84" 1280 X 400 pixels and requires SPI for 2 chips on the board SSD2828 is the bridge chip from SDI to MIPI and needs to be set to allow the...

That was the change from last night and this morning. So yes first 2 pixels and last 2 pixels. Edit: Kurt's original DMA code skipped the 1st 4 pixels and what I went to this morning was using the subwriteRect that...

Agree - there's a lot of "whizz down lists doing stuff" that could do with cleaning up. Also the red code here: if (p == NULL) { //>>> PAH re-enable the IRQ __enable_irq(); return; } else if (p == this) {...

Somehow I was under the impression we were keeping the first 320 pixels and discarding the last 4. Just to confirm, on each line of 324 pixels, we're supposed to ignore the first 2 and last 2 pixels and keep the 320...

Not sure how the age of the ESP8266 is an issue for you, but they are quite simple to use and cheap and plentiful. They don't have BLE5, though. Both the ESP32 and ESP8266 can be put into low power mode, though that...

I just connected all 3 power pins to 3.3V. That test board doesn't connect the video signals at all. They just route to those pads in the middle of the PCB. Only power and I2C are actually connected. All the...

Thanks, was wondering if you somehow hooked up using the board you showed in the post: https://forum.pjrc.com/threads/66771-MicroMod-Beta-Testing?p=276171&viewfull=1#post276171 that you tried with Teensy 4.1 ...

With the change that Kurt made to the 's' decided to see if the other frameSizes would work as well: /* * FRAMESIZE_INVALID = 0, * VGA Resolutions * FRAMESIZE_QQVGA, // 160x120 * FRAMESIZE_QVGA, ...

I've also try to set the interpolation off, it does not affect too much the CPU usage...and sounds worse pitching down the samples has a small impact in the CPU, looks like the issue comes when pitching the samples...

@Paul Very cool that you got some life with using FlexIO. Was looking at Kurt's lib this morning and my head hurt :). Oh just one thing the 4pixels is a 2 pixel border around the actual 320x240 image. A quick...

Right now I'm using Sparkfun's ML carrier board with ILI9341 connected to the left side pins. Nothing special on the HM01B0 camera. On the breakout board, which is still at least a week away, I put 2 camera...

the idea was real time control over pitch, so offline process does not solve it

Hi Frank, thanks for the input but when using the original flash raw player the AudioProcessorUsageMax() was like 31% and with the resampled version is 102% also, that 31% isn't only about the 8 flash players, there...

Unfortunately, the application will require writing data daily, sometimes significant amounts of data, hence using the Teensy 4.1 with possibly adding more PSRAM. And then every day, or few days, off load that data...

thank you for your time KurtE!! i will try without changing the code, to make it different, I only differentiated some values ​​of the same code and I see that it start from data0000 ....data0001 and goes up to...

And resampling is not trivial processing either - resample offline if possible.

@Paul - looks like you are making good progress with it. Does your wiring do anything special? Or did your board just breakout the pins of the ribbon? @mjs513 not much progress yet with DMA... But did do an...

I don't think this is correct - i.e. it is not interrupt driven. You have to arrange your code such that it calls handle_Messages more frequently than the heartbeat timeout, which is ten milliseconds. If, for example,...

Or even replace the while loop: while (p) { if (p == this) { if (p->next_dest) { p = next_dest; break; } else { p = NULL; break;

Serial flash is - compared to other memory - incredible slow. I don't think there is a way to make it much faster.

Speed isn't the main concern, it's convenient live uptake. I'm just looking for something I can use to easily to pass live camera data to a PC. To get back to the original question: Is there a good project out there...

No pointers in that code, just an array of objects. If pointers were involved you'd replace '.' by '->' (or is that what you've done?)

More fiddling with FlexIO... and I finally have it somewhat working. For reasons I don't fully understand, it's capturing only 7 of every 8 pixels. So I added a bit of kludge code to add 4 white pixels to fill in the...

Yeah was going way deeper originally to see what was going on so started with Vsync. Want to see what you did and see I can merge but really distracted. I did remember to update the PDE to 324/244 though. But to...

From watching the posts, there are various threads about adding the support for USB file system support (look for threads about MTP support, beta7 posts, etc.). Having the rewritten file system support in 1.54 beta7...

@KurtE Updates are already pushed to repository, see post 342, right before yours. 99% sure that the writeSubImageRect is working correctly because I am now using it for 's'napshot and 'continuous modes and its...

I started to do that - but some of the DMA disable stuff isn't compatible so switching that off is needed - and thought I saw you ask for a way to count DMA updates? And other than the Reformat because all the indents...

Tri-state is not a CS issue unless you have both CS' asserted. The issue is at MISO, some chips don't tri-state that line and it fights with the other slave that is ran in parallel. tri-state buffers exist for these...

Paul's paper on better SPI design (https://www.pjrc.com/better-spi-bus-design-in-3-steps/) would indicate that SPI devices having their own CS lines does not prevent the need for tri-stating. The first step might be to...

I don't expect a lot of activity but it looks like t could be a dry evening. It is quite chilly though. You could use two small signal diodes in parallel, one from the old circuit and one from the pwm circuit....

Thank you ! I follow your idea using pointers and it works .

Sorry, i have just my phone on internet so no schematic is avaleable. I used 10k on both and than 2.2k on both. The sda 2.2k with sca 10k works. I need more tests with more chips on the same bus.

Thanks, Got it working. I had two issues. 1) my counter was not volatile (oops, should have known that) 2) I was not checking for can events while waiting for the next button press. This code is a little ugly,...

@mjs513 - you might push up what you have, either in main or some temporary branch and I will take a look. Could be several things like: maybe I am not responding quick enough for the VSYNC to turn on the DMA. ...

Just pushed the current changes using subWriteRect and QVGA = 324x244. One other thing - took setpixformat out of the sketch and called it directly from init since this camera only supports grayscale. Also added a v2...

volatile without events(), doesn't matter with events()

With the HiLow test, I don't see you actually trying to run a probe from either 3.3v or GND depending on which way, and touch other side to a pin. Note: you need to hit enter to change modes. For example I ran it...

Yeah, a few new firmwares versions a day now :D I'm happy with the reboot.exe instead of opening and closing the enclosure daily. Thanks for clarification about TE mode, will try this evening with real bats. If I...

Morning @KurtE Yep - tried just making _frame_ignore_cols = 0 but the image messed up. Agree - not sure why you are multiplying by 2 since we only have grayscale. The *2 in the original readFrame was for color...

Hi Kurt, Wire and Wire2 works but Wire1 is failing...... I removed the Teensy from the board and connected directly with wires.... no differences.

@mjs513 - I never went through to see how many rows we ignored. Will be obvious when I can hook up LA to it... Or could write some extra code, probably like you did. I did find out about the number of columns, by...

There seems to be an error in the disconnect method, when unlinking an element from a linked list the pointer of the prevoius node most be shifted, so in AudioStream.cpp line 257 if (p == this) { if...

Brilliant, thanks so much manicksan! There's a lot to digest there, but the first quick look I just gave it suggests it's all going to be really useful.