Teensy 4.1 Bootloader Compatibility

Z

zzonerr

New member
Hello all,

I checked the forum and couldn't find the answer on this one:

I want to design a custom teensy 4.1 that is compatible with automotive environment. Current processor is rated for 0C to +95C.
If I design a custom board with MIMXRT1062XVN5B which works in extended temperatures,
- will the bootloader work as it does in current configuration?
- Will the custom Teensy 4.1 behave exactly same in arduino development environment?
- Will the analog, digital, CAN etc. pin mapping work with same definitions?

Thank you
 
Keep in mind the "5" in the model number means it is only rated up to 500MHz, not 600MHz like the MCU on the standard Teensy 4.x. It also requires higher internal voltage settings to run at the same speeds otherwise it's prone to suffer random errors.

It is possible to detect which speed chip variant is installed by examining some of the fuses.
 
jmarsh said:
Keep in mind the "5" in the model number means it is only rated up to 500MHz, not 600MHz like the MCU on the standard Teensy 4.x. It also requires higher internal voltage settings to run at the same speeds otherwise it's prone to suffer random errors.

It is possible to detect which speed chip variant is installed by examining some of the fuses.
Click to expand...
Thank you, I only could find "X" temperature range in "5" chips. I'm willing to use the chip in 528Mhz, it seems it is reported for the best reliability
 
Even at 528MHz the "5" chips still require higher voltage. Code to handle it is here.

I cannot stress how important this is, unless you want to be chasing random software crashes without any obvious source.
 
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