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Please see the example, below. Just verified. Choose the frequency to test from set_arm_clock(...). The setting 396 MHz produces 1 "FFT available" on start and then only "FFT unavailable". /// Do not remove the include below #include "T4SX.h" #include <Audio.h> #include <Wire.h> #include...

Hi Paul, the setup is completely without audio shield using the on-chip ADC for recording with an unused I2S / SPDIF output for update responsibility. I chose SPDIF to reduce the amount of pins eventually interfering. I'll check with a single Teensy 4 after flight sim and post a reduced example...

Tracked down the issue, removing the following line brings ADC and FFT/peak to live: set_arm_clock(528'000'000); // reduce speed to 528 MHz (NXP default) We need to adjust the clock and slow down the RT1062 a bit because in micro gravity environment / space there is no...

Update: just got it working on a Teensy 4, unplugged from audio shield, USB Audio removed. There's something else going wrong. Anyway the tip with the update responsibility is important. I'm jumping in here because I was trying that using an unused I2S port, but without an audio board. We...

Can confirm it works as expected now.

Thanks! Now also got a confirmation for 4.4.3.

I have to complain. Sloeber now says: Installing Arduino Board Platforms Failed to install Teensy Archive format not supported.

Hi, had the same issue with 8x (eight times) blinking. Seemed to be either bad solder joint near MKL02 or conductive dust (something we experienced in the past). A standard procedure of removing conformal coating, cleaning, adding CS Flux and resoldering around MKL02 (nearby caps as well)...

Sorry, I needed a bit more time to test. Works as intended and passes differential tests :-) Thanks a lot Paul! Best, Christian

Hi there, we're using the Teensy 4.x on research rockets such as on MAPHEUS 9 - 13 to control experiments and acquire data. Our last mission was on May 22th, 2023: https://sscspace.com/successful-launch-microgravity-research/ As we're also doing research for life support systems we're using...

Thanks a lot! Very good (and pretty fast) job. :-) All the best, CK

FYI: I opened a pull request https://github.com/PaulStoffregen/cores/pull/698 to include a fix for handling stack pointers correctly. We set MSP to HAB log file space and use PSP for stack in regular thread mode. Without the fix, the exception handler will try to read from the MSP, which in this...

Hi all, Confirmative. ZMK access works as intended and is selectable as (combined) master key for DCP. So, on fatal security events the keys gets eliminated and all data encrypted with this key rendered useless for the attacker. Thank you @ali1c3! Best, CK

Hi, just compiled our space stuff for Exp.007 / https://www.dlr.de/content/en/articles/news/2022/04/20221021_ride-into-microgravity-with-a-spy-amongst-numerous-experiments.html. Uses: BME280, BusIO, HMC5883, MCP9600, MLX90614, Neopixel, TMP007, UnifiedSensor, FlexCAN_T4, MPU6886, LittleFS...

You're not alone, that's why I stick to what can be learned i.e. from https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/drivers/fsl_dcp.c in public discussions. Well, SNVS can't and definitely will not work. I couldn't emphasize this...

Hi Paul, depends on the security model. The SNVS key is only available if the Teensy is locked and could only be used by code passing the HAB authentication. So, if you need to export and import critical data from/to the very same Teensy the SNVS key could be used - that's why the name. The...

Hi there, not Manitou, but used to i.MXs ... in case of the Teensy 4 there are two things worth to mention: 1) You could use a "standard Teensy" (an "old" serial no. 610374 does this here as well) and fuse a public key hash and an encryption key. You can write the hash and encryption key...