Art, do you mean the plug-in windows software package from mentioned on the PJRC site that works hand in hand with the IDE software to facilitate uploading complied code directly from the IDE into teensy?

I’m using the same plug in software package and am able to compile/upload test code into the teensy with no problem after configuring COM port and board type in the IDE settings. ?

I have not yet attempted to upload the the jackal firmware.

Jim KM4TXR

On Jan 22, 2019, at 12:11 AM, jjpurdum via Groups.Io <s@...> wrote:

What do you mean "Teensy loader"? Programs should use the Arduino IDE to load files.

Jack, W8TEE

On Monday, January 21, 2019, 5:21:55 PM EST, Art Olson <olson339@...> wrote:

Jim

Thanks for the detailed reply. I am at a point of trying to load a sketch via IDE and the teensy loader with no luck. I was loading the blink program. There doesn’t seem to be a port opened using win10 so the upload fails. I have tried a couple of usb/mini usb cables again no luck. The usb cable is providing power as the on board led blinks.?

Thoughts

Art

On Jan 21, 2019, at 5:06 PM, Jim Sheldon <w0eb@...> wrote:

Art,
I didn't see a definitive answer yet and I know Jack is super busy trying to sort out everyone's problems so I'll answer your question.? The pad in question is shown on the back side of the Teensy 3.6 (and other Teensy's as well) pinout card that came with it, as the VIN/VUSB jumper and it says to cut that jumper if using a battery charger OR external power.? The battery charger isn't relevant here, but external power is so the jumper MUST be cut.

Now for the reason which isn't readily apparent.

You are powering the Teensy 3.6 from the 5 volt regulator on the JackAl board.? If you have not cut the jumper and plug the USB cable in to re-program the Teensy (or for some other purpose like CAT control or other serial I/O from the USB port) you are also supplying a nominal 5 volts from the USB port to the Teensy.? The two voltages will most certainly not be exactly equal as they come from two different power sources and they WILL conflict with possible damage to the Teensy's on-board 3.3V regulator and other circuitry (I know, I destroyed one by doing this before I figured it out).

So, in this case if you don't cut the jumper, don't connect the USB cable with the JackAl powered up.? By the same token, if you follow PJRC's directions and cut the jumper, you will have to power the JackAl up to get the Teensy operating before you will be able to re-program it.?

If, like me, you sometimes forget these things then cut the jumper (recommended anyway) and just remember that you have to have the JackAl powered up to use the USB connection to program the Teensy 3.6 (or to communicate with it for any reason).

Jim Sheldon - W0EB

___________________________________________________________________________________________________
(Art Olson)

12:52pm ? #129??

Jack

I vaguely recall some discussion about cutting the 5 volt pad on the teensy. Is this still necessary or am I off target.?

?

Art N2AJO