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Switching back from platform teensy 5.0.0 to older platform with: platform = teensy@4.18.0 does the trick. But why does teensy 5.0.0 rise this problem?

Hi, I get this message building my project under PlatformIO for Teensy3.6 after some package updates. Project worked before but now build shows: .platformio\packages\framework-arduinoteensy\cores\teensy3/Print.h:118:62: error: 'vdprintf' was not declared in this scope; did you mean 'vprintf'?

Perhaps i'd better adjust the step down converter to 5.5 to 5.8 V and use a 5V low drop regulator behind it. The low drop 5V Regulator can easily cope with up to 15V and has got a thermal protection.

OK, thank you for the clarification. So, i guess i would have to use something like this to protect Teensy from accidentally increasing voltage at the DC-DC-converter's output: additional Polyfuse...

Hi, I am using a Teensy 3.6 and wondering, what will happen if the VIN voltage of 6V is accidentally exceeded. In the circuit diagram I can see the LP38691 LDO and a fuse F1 with 500mA (a "polyfuse" i guess). Vin voltage is specified to <6V, the LDO is specified for <10V or absolute maximum...

"no debugging (was on wishlist since Teensy 3.0, so why should it come now?) " so true - and a pity - I would not expect JTAG to be added. It seems, Paul dies not like it :-) I admire these boards for the the performance and the many peripherals and connectors and the size of RAM and flash...

Will the 4.1 still be without hardware debugging option (JTAG)?

Jtag debug PINs are definitely on top of my wish list.

Debugging I asked this in thread "Debugger Depression" - and got no answer to it yet. So I guess, there are no JTAG Pins. Otherwise we would have received an answer :rolleyes: If this is true, i would be a sad thing, for projects on a board with so much RAM are often quite complex and...

Now, that the Teensy 4.0 is out: What about HW-Debugging on this fantastic device?

PlatformIO has now opened their Plus Version for open source so you can use the PlatformIO Unified Debugger free of charge. https://community.platformio.org/t/platformio-plus-goes-open-source-improving-embedded-development-community-worldwide/8240?utm_source=platformio&utm_medium=piohome But...

Which pins exactly are the I2S Pins? Perhaps you could use PAO and PAI (Philips Audio Out / In). That would also relate to a Power Amplifier we would perhaps connect there...

Perhaps i would even do that... But Paul Stoffregen wrote both the libraries "Audio" and "USB_host_t3". I would prefer him to integrate it in his own style. I think, he is much better than me in these things. Not sure, how much effort it would be. Perhaps I am wrong, but it seems to me, that...

Is it possible to send audio data to the Teensy3.6's USB-Host port, to connect it with a USB-Audio Interface? There are a lot of USB audio interfaces, expensive combinations like a ZOOM R24 -audio recorder/mixer, the Yamaha THR10 guitar practising amp, , or cheap devices like Behringer U-phoria...

Hi jayjayuk, your library seems to be great, thanks for the work! Just one question: You use SPI_MODE_0 for communication with ili9225. According to the diagram in it's data sheet it looks like SPI_MODE_3 (capture on rising edge of CLK and IDLE-High of CLK). Am I missing something?

Oh, I see. With "quite similar" I just meant the overall technical data (all speeds, DMA) etc. But you say, that the internal structure is really quite different. Would it be a matter of "oh, what a lot of work..." or would there be severe technical limitations for the library because of these...

Just wondering if it would be possible to port the wonderful "USBHost_t36" Library to Arduino Due with it's SAM3x8E. The USBOTG unit include in the SAM seems quite similar to the one inside EHCI. I looked inside this lib's files and it seems to me, that "only" the file "ehci.cpp" had to be...