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@MeBoop - indeed - would be great to see your 'crash trace dumo' code. FrankB added a great T_4.x solution using the RAM2 area for Fault data storage. RAM2 is not zeroed on restart and if power is maintained that...

Yes. I connected some other PWM pins to the RC filters, this time with new 2K in series with the 4.7nF cap reducing peak currents, and those pins had not been affected by the load. Who knows, maybe the pin got damaged...

Dont know if that has changed lately but in the past their libraries had horrible bad code... :) I once saw a graphic driver and other libs and i decided not to spend time with this ... ok that was a few years ago.

Try uncommenting this line in usb.c //USB1_PORTSC1 |= USB_PORTSC1_PFSC; // force 12 Mbit/sec

Very interesting thing -I'd like to see your code? I made something similar, but dont get much useful info. My codes just resets after a hardfault.

I ended up having to create a driver to use my PC to render for testing because the RA was just so slow lmao (and it doesn't even support scissor rects? ew!) While not unlikely, I feel the requirements to get NXP...

Depending on the drive level set, pins are rated from 1mA upto 4mA at full drive, sourcing or sinking. BTW csv: you did call "pinMode (..., OUTPUT);" didn't you?

Yes, the TRNG will enable that.

No, I have a very tight space (not large enough for a USB connector) so USB data dots are connected to a PCB connector that is connected to a Underwater Bulkhead etc. All in a water tight pressure housing. An...

Freescale app note AN4507 discusses the various options for securing Kinetis flash. Teensy uses an external chip for the bootloader, it might be possible to lock that IP from JTAG access while allowing access to user...

No one ever said you have to put the second row of pins facing the same direction as the first row, or that it had to be a row of pins for that matter. Just put the pins one the board with on row facing up, and the...

Do you have an old 12MHz Hub? Don't know if that would work..I'm courious.

A big thank-you to Greased Lightning ..Ive been struggling with the gsl1680 touch code , and he managed to get me up and running...Ive been on another project and only found today to give it a good go ! Again thankyou...

MeBoop: I second your opinion of the RA8875/6/7! Any GPU that is so slow that you can actually watch the screen update is terrible! The GPU in the 1176 promises to bring REAL graphics functionality to the world of...

The way is to simply add an extra jack. Whatever you do - never connect the jacks GND to the normal GND. If you really want to go that way, cut all three connections.

The help in the Auio Library GUI says: Then, you want to remove the SGTL500 Control.

15ma is way too much. I think its max 4mA for static DC for a single GPIO pin. Not sure about PWM.

I also tried that on three other pins, 33, 36, 37 with the same result. I try some more. My normal load for the pin 5Kohm and 4.7nF(with 120 Ohm in series) to ground. The signal is a PWM. Peak current with the cap...

Need 8 ports? pretty uncommon. But need 12-16 more GPIO pins? Way more likely. And LCD pins? Hell yes. I'd love to see a Teensy 4.0 format with 2 rows of pins on either side. Put the less needed functions on the...

Hasn't JTAG always been a business decision rather than a technical one? I've always thought it was only missing to help protect PJRC from clone vendors.

Frank B: I fully agree with you about the real need for 8 serial ports. If one were to be developing a multi-port serial hub for a project it's quite unlikely that an MCU as powerful as this is going to be either...

Some people just like eating more than cinnamon toast crunch :rolleyes: The dual core nature of the new MCU means we can rather easily offload software emulation of various protocols like UART/SPI/etc on the other...

Thank you very much for the thoughtful reply.

I partly agree. Teensy needs more pins. Not because one needs all pins, but because of missing functionality. Then the question I would like to rise is, if really anyone needs 8 Serials... or which percentage of users....

I tried that and can't confirm that. Looks like your Teensy has a defective pin.

Agreed! The JTAG debug pins will be necessary for debugging more complex firmware/software. (And with the RT1176 many will be adding more functionality/complexity to projects implemented on the board. As indicated,...

Looks right for FAT32. Fat16 was big enough for MS-DOS as HDD's grew - much more so accounting for var sized clusters with compression factor of 16:1. Even Win95 with FAT32 couldn't fit FAT in single alloc limit of...

I set pin33 to logic high, 3.3V. Then connected a 10Kohm resistor to ground. Voltage dropped to 1.0V. 100uA is thus the current. The missing 2.3V is getting lost in the internal resistance, which then would be 23Kohm....

@khoadley, if you look at the schematic - for Teensy - it seems you need to provide 3.3V to "VIO" (do NOT close JP7), and in addition the board wants 5V.

They even have connectors with inbuilt electronic ... filtering and EMI protection... amazing! It's a bit expensive.. I think If I can find it somewhere, I'll order one and build an adaptercable.

@defragster and @mjs513 I am sort of curious about fragmentation works ;) For the Fat32 volume: I mucked up the beginning of the method most all of the class variables int32_t FatPartition::freeClusterCount() {...

My point was that the ADS1115 is inherently integrating over its long sample period, so will have relatively little issue with wideband noise at the input. If you want a fast >=16 bit ADC, the ADS8885 is 18 bit SAR...

Found some great PDFs in German, from Würth Elektronik. They say VBus (5V) should have a ferrite. More advanced designs they propose have pretty complex schematics, just for the connector - with a lot of parts...

Manicken has a version of the Wavetable encode stuff that adds the "PROGMEM" that Teensy 4/4.1 need EDIT: see this: https://forum.pjrc.com/threads/66199-Updated-SoundFontDecoder BTW I modified my own copy...

The recommendation from TI seems to be direct grounding at host end, ferrite beads to groundplane at client end. https://www.ti.com/sc/docs/apps/msp/intrface/usb/emitest.pdf

The LT1867 is a capacitive Successive Approximation ADC. The input acquisition time is a nominal 1.1 microseconds, independent of the sample rate. As noted, it is imperative to have good anti-aliasing filters at...

Oh.. just noticed.. that the 4.1 has the TPD3S014 on board .. t4.0 not. Seeing this the first time.. :) great.

Ok, on the Teensy 4, the 2 pins are just connected to GND.. I assume one is the GND wire in the cable, the other for the shielding? So, that seems to be OK.

p#523 crosspost ... Windows view of USB Hub Drive >> H: << and Flash drives >> F: and G: << as below: Here is run on p#522 updated code - now has ExFat drive size: Waiting up to 5 seconds for USB drive 1...

Just plugged in my 5 TB external - yesterday's code - doesn't matter given the part ID #238: msc # Partition Table part,boot,bgnCHS,type,endCHS,start,length...

Full current sketch, Note I commented out the earlier calls to get sizes... Waiting up to 5 seconds for USB drive 1 ^^Waiting up to 5 seconds for USB drive 2 ^^^^^^^~~~~:(Initialize USB...

Sorry, I'm talking about the schielding of the cable. The usb cable has GND wire, and a shielding that must somehow be connected to GND, too. My Question is: Is the cable shield connected on both ends to GND? If,...

Thanks MarkT! Sounds like I might need to rethink this a bit (unless anyone knows of a fast, high resolution ADC with better SNR than the LTC1867. One of the issues I was having with the ADS1115 is that I cant...

So I tried adding in the above test sketch currently just to the FAT16 and FAT32 section code like: for (uint8_t i = 1; i < 5; i++) { switch (partitionTable) { case 11: case 12: { ...

While I have some pride at having figured this out, I am not proud of my spaghetti code. I do intend to do a re-write and re-structure it so it is useable by others. Until then I am happy to share my notes,...

The LTC1867 only claims 89dB SNR, which is about 14.5 bits equivalent. The ADS1115 claims full 16 bit noise-free at lower rates and not far off 16 bits at the full 860 SPS. Couple this with the fact that noise...

I agree. The teensy without JTAG makes development of software with any level of complexity far more difficult than it needs to be due to lack of debug capability. JTAG requires only a few pads for an unpopulated SMT...

Maybe the code in the sketch is wrong... It is not applying the partition... I am going to move those calls into the sections by partition type and see what I get... Looks like we crossed posted. I am going to...

Maybe using the drive as the pointer instead of the volume so everything in MTP going to associated with the drive not the vol?

@gonzales, yes, you're right. I simply replaced FLASH_SIZE/2 with FLASH_BUF_ADDR everywhere. In that case, the original code should have been (FLASH_SIZE - FLASH_SIZE/2 - RESERVE_FLASH) and the new code (FLASH_SIZE -...

@KurtE Was toying with something like this for MTP but don;t think I am passing the right things: uint32_t sd_addFilesystem(FS &fs, const char *name, const char *volumeID) { if (fsCount <...

Thanks for the reply mborgerson. I ended up switching to an Arduino Uno and it is now working (although the teensy would still be best). However, while it is still technically working, it seems to have a rather poor...

@Frank B Assume you are talking about the USBHost Shield 2.0: http://shop.tkjelectronics.dk/product_info.php?products_id=43 If you are I have the original version and it works for teensy 3 and 4 with one caveat. ...

Hallo Chris :) Thanks. When I'm done with the development I will upload my project to Githup. Its free. I use the Arduino Lib for the graphics. Parameter settings are converted for a resolution of 128. Look at...

Hello Friends.. Our progress cannot be stopped. This time we really accelerate. The Fx PCB is ready. Now we has started to route the "Jeannie" mainboard. I'm curious.. Fx board

Something does not appear to be working correctly at all with the freeClusterCount: int32_t FatPartition::freeClusterCount() { #if MAINTAIN_FREE_CLUSTER_COUNT if (m_freeClusterCount >= 0) { return...

Makes absolute sense to me - that sketch is coming in handy for testing.

Very cool = I just gave you last set of chances a try and they worked = both thumb drives came up - even the SD Card.

@all - Another quick question: while starting to look at why the free space is TAKING SOOOOOOOO LLLLOOONNNGGG I noticed in the SDFat code:...

Quick note: I am thinking it might make sense to add the VolumeName.ino as an example sketch to maybe MscFS.h project. That way we can all keep track of it? Make sense?

Thanks will pull down the latest changes and give it a go. Not even going to touch linux - having enough problems :)

Morning, Try picking up the latest UsbMSCFat project - I added a hack into it that if you ask for the Used size, twice (or more) it remembers the first call to it, which we do as a debug message at the time we add...

I figured the PHY had requirements in order to reliably TX/RX data at 100Mbps. I was hoping it wasn't going to be so much, though. But since writing that post, I've been thinking about: 1. setting up a timer IRQ...

@KurtE Just tried your updated MTP and this is what I am seeing. Look like it works for SSD: MTP_test sd_addFilesystem: 0 20006328 RAM1 RAM Storage 0 RAM1 199936 512 sd_addFilesystem: 1 200063f0 RAM2 RAM Storage...

Correction, led is controlled by ethernet PHY.

Morning all Decided to start playing. Ran @defragster's updated sketch on 3 devices: (1) an old 2GB thumb drive (FAT16 only), (2) a 32GB Sandisk thumb and (3) my HP 120GB SSD. One thing I noticed is that the...

Thanks @defragster, I updated to your version. I ran again, still real slow on my older thumb drives: Waiting up to 5 seconds for USB drive 1 ^^Waiting up to 5 seconds for USB drive 2 ^^^^Initialize USB...

Sorry for the delay in replying. Recently been tidying up some old branches and spotted this. Its a bug in the folder, whenever the folder saw a sample value ending in 0x8000 it was glitching. Its fixed in the...

If you have any ideas/wishes on the software side you would like to see implemented, just mention them on this forum. Not everything can be done but we can always try. regards Cor

Ah, those are my PDM changes, I noticed them eventually - I'll have a look at fixing this. https://github.com/PaulStoffregen/Audio/pull/390 ]

For now I just plan to build the detector, but I will probably add some extra headers, so I can experiment when I have more time (probably next winter). A plug in Bluetooth audio transmitter may be a good initial...

Hi defragster, Thank you for the reply. The pin numbers came from the PJRC Teensy 3.5 Pinouts page. https://www.pjrc.com/teensy/pinout.html Scrolling down to Teensy 3.5 Pinouts, we find that pins 3 and 4 are...

So now we will have both SD and SdFat both installed along with Teensy?

Now i just want to load my large program to 3.5 from your Flasher3d. FLASH_BUFFER_ADDR - is offset for addressing or availible flash size? I think it is offset, so i tryed to set #define FLASH_BUFFER_ADDR ...

Congratulations, looks great! Whats that fader for?

Great! Also easy to use :: #define WIRE WIRE2 Not sure where those pin numbers came from they don't seem to match any 32 bit Teensy card. The T_3.5 and 3.6 can use ALT WIRE on pins 7&8.

The T_4.1 package is : LFBGA196 and 12 x 12 mm, 0.8 mm pitch, ball matrix The 1170 package is : LFBGA289 and 14 mm x 14 mm, 0.8 mm pitch There was a note IIRC the board would have to be bigger just to hold the...

Thank you defragster. Your solution works. For those who experience the same issue I had with the i2cscanner example and Teensy 3.5, the solution is 1. Do not use the commands Wire.setSCL(3) or Wire.setSDA(4) to...

As noted those pins are for Wire2 So all the WIRE commands need to use WIRE2 not WIRE That should select the right internal hardware to connect those pins.

It would be interesting to see a Teensy variant with more pins exposed (e.g. a teensy 5.2?) The NXP chips have so many capabilities limited by the smol formfactor of the Teensy. While good for 99% of usecases, I'd...