Rocketmanandrew

I reflowed the whole chip and it worked 😎. I think my solder paste is to old and is making bad connections. I probably should have just tried that in the first place.

So did did the test and it does the exact opposite, when i haven't clicked program its at about 0.4V but when i click it it goes up to 3.2V. This is very strange.

Yes, i'm going to do that also.

Ok, i will try to see if i can read the reset pin, it's a little hard to get a connection to it since it's a small chip. If all else fails i know someone who has a scope and fancy test equipment so i can see what's going on.

Iv tried a different computer and reflowing a bit more, but still no luck.

Reflowed and went over the pins with a soldering iron and it's now outputting 3.2V on the switch but still no usb connection, i'm going to see if maybe its a computer problem also.

Ok, ill try re flowing it and see if its getting the right amount of power.

0.2 volts on pin 10 (Program pushbutton) usually means the chip is blank. Any chance this PCB was built by an assembly company? We have seen cases before where those companies will buy blank parts, and some of them will even lie when asked if...

I did the test again while connected usb and im getting like 0.5 volts on that pin now for some reason.

Erase is only possible if debugger hardware is connected to pins 14 and 16. If those pins are left unconnected, the firmware can not be erased or altered.

I assembled it myself. I got 2 of the bootloader chips, so i tried putting the other one but no luck. Could it have somehow erased on start up? Got all the parts from digikey except the boot.

It said on the crystal guidelines for the bootloader that i would only need crystal capacitors if my crystal was rated to 18pF the one i'm using (this) only has 10 pF.

Yes it looks like it was the T3 version.

It seems like the bootloader isn't responding, nothing happens when i click the program button, the voltage level also doesn't go completely low.

I have been working on a custom project that uses the Teensy 3.6 schematic, the problem im having is that it doesn't show up on usb, i measured the voltage level of pin 10 on the MKL02, the one connected to the button and im only getting about...

Have you tried running it on an arduino?

I have been working on a model rocket flight computer based off of the Teensy 3.6 and I'm kind of paranoid about weather it's going to work or not since im pretty much self taught on pcb design. I have removed the 5V regulator, removed the two...

I realized i posed this in the wrong thread , my bad.

I have been working on a model rocket flight computer based off of the Teensy 3.6 and I'm kind of paranoid about weather it's going to work or not since im pretty much self taught on pcb design. I have removed the 5V regulator, removed the two...