Custom board initialization and programming

S

slash2

Well-known member
I have a custom board and have had it working successfully. I made some updates to the board and when I powered the new board up:

(It passes all the diagnostic blink codes, in that I don't see any)

1. Pressed the program button until the LED comes on (about 15 secs).
2. Wait until the flash programming ends (about 15 secs)
3. Verify the default 'blink' program runs.
4. I open Arduino and see the port: 'hid#vid...(Teensy 4.1)'
5. All good so far...
6. I try to load a modified 'blink' program (longer delays)
7. It compiles and starts uploading
8. LED on board goes out and I get the 'Teensy did not respond to a USB-based ...' message
9. If I power cycle, the default 'blink' program returns

The only real changes I made to the Teensy part of the circuit:

1. I changed to a crystal oscillator rather than feeding it from an external clock. The oscillator is running and is 24Mhz..
2. The USB and power come on to the board through a daughter board. Traces are short and equal length.

Any ideas as what is going on?
 
Teensy Loader has a Help > Verbose Info menu which opens a window with detailed log data. That window has a "Log" menu which lets you save to a file. It also supports Copy to clipboard.

If you share the file or copy of log data, maybe it will give more info to help understand what's going wrong.
 
Oh, didn't know about that! Thanks!
Here is the log:

14:34:26.157 (post_compile 61): Begin, pid=33436, version=1.60, high-res time
14:34:26.161 (loader): remote connection 3868 opened
14:34:26.162 (loader): remote cmd from 3868: "comment: Teensyduino 1.60 - WINDOWS (teensy_post_compile)"
14:34:26.162 (post_compile 61): ARDUINO_USER_AGENT = "arduino-cli/1.4.1 arduino-ide/2.3.8 grpc-node-js/1.13.0"
14:34:26.162 (post_compile 61): Sending command: comment: Teensyduino 1.60 - WINDOWS (teensy_post_compile)
14:34:26.164 (loader): remote cmd from 3868: "status"
14:34:26.171 (post_compile 61): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\12225A2E16FE69A4E08310AF4A28B850\, Blink.ino.hex
14:34:26.171 (post_compile 61): Sending command: dir:C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\
14:34:26.171 (loader): remote cmd from 3868: "dir:C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\"
14:34:26.172 (loader): remote cmd from 3868: "file:Blink.ino.hex"
14:34:26.173 (post_compile 61): Sending command: file:Blink.ino.hex
14:34:26.189 (loader): File "C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\Blink.ino.hex", 19456 bytes
14:34:26.189 (loader): File "Blink.ino.hex". 19456 bytes
14:34:26.197 (loader): remote cmd from 3868: "status"
14:34:26.202 (post_compile 61): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:26.202 (post_compile 61): Disconnect
14:34:26.221 (loader): remote connection 3868 closed
14:34:26.689 (post_compile 62): Begin, pid=35412, version=1.60, high-res time
14:34:26.694 (loader): remote connection 2060 opened
14:34:26.694 (loader): remote cmd from 2060: "comment: Teensyduino 1.60 - WINDOWS (teensy_post_compile)"
14:34:26.695 (post_compile 62): ARDUINO_USER_AGENT = "arduino-cli/1.4.1 arduino-ide/2.3.8 grpc-node-js/1.13.0"
14:34:26.695 (post_compile 62): port = "Port_#0001.Hub_#0012"
14:34:26.695 (post_compile 62): Sending command: comment: Teensyduino 1.60 - WINDOWS (teensy_post_compile)
14:34:26.695 (loader): remote cmd from 2060: "status"
14:34:26.704 (loader): remote cmd from 2060: "dir:C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\"
14:34:26.705 (post_compile 62): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:26.705 (post_compile 62): Sending command: dir:C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\
14:34:26.705 (post_compile 62): Sending command: file:Blink.ino.hex
14:34:26.705 (loader): remote cmd from 2060: "file:Blink.ino.hex"
14:34:26.718 (loader): File "C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\Blink.ino.hex", 19456 bytes
14:34:26.718 (loader): File "Blink.ino.hex". 19456 bytes
14:34:26.727 (loader): remote cmd from 2060: "status"
14:34:26.736 (post_compile 62): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:26.736 (post_compile 62): Disconnect
14:34:26.747 (loader): remote connection 2060 closed
14:34:26.748 (post_compile 63): Running teensy_reboot: "C:\Users\sawtelles\AppData\Local\Arduino15\packages\teensy\tools\teensy-tools\1.60.0\teensy_reboot.exe" teensy_reboot.exe "-board=TEENSY41" "-port=Port_#0001.Hub_#0012" "-portlabel={serial.port.label}" "-portprotocol={serial.port.protocol}"
14:34:26.748 (loader): remote connection 3144 opened
14:34:26.794 (reboot 64): Begin, pid=33228, version=1.60, high-res time
14:34:26.794 (reboot 64): location = Port_#0001.Hub_#0012
14:34:26.794 (reboot 64): portlabel = {serial.port.label}
14:34:26.794 (reboot 64): portprotocol = {serial.port.protocol}
14:34:26.794 (reboot 64): LoadLibrary cfgmgr32 ok
14:34:26.794 (reboot 64): LoadLibrary ntdll ok
14:34:26.796 (reboot 64): found_usb_device, id=\\?\usb#vid_16c0&pid_0486#17345790#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:34:26.796 (reboot 64): found_usb_device, loc=Port_#0001.Hub_#0012 Port_#0001.Hub_#0012
14:34:26.796 (reboot 64): found_usb_device, devinst=00000008
14:34:26.796 (reboot 64): found_usb_device, hwid=USB\VID_16C0&PID_0486&REV_0280
14:34:26.796 (reboot 64): add: loc=Port_#0001.Hub_#0012, class=USB, vid=16C0, pid=0486, ver=0280, serial=17345790, dev=\\?\usb#vid_16c0&pid_0486#17345790#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:34:26.796 (reboot 64): hiddev_from_devinst_list: iface=1
14:34:26.796 (reboot 64): 00000014: path=\\?\hid#vid_16c0&pid_0486&mi_01#c&454b1b4&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}
14:34:26.800 (reboot 64): found_usb_device complete
14:34:26.801 (reboot 64): hid, found devinst=00000012
14:34:26.801 (reboot 64): hid, found devinst=00000014
14:34:26.801 (reboot 64): usb scan found 1 devices
14:34:26.806 (loader): remote connection 3064 opened
14:34:26.807 (reboot 64): found Teensy Loader, version 1.60
14:34:26.807 (reboot 64): Sending command: show:arduino_attempt_reboot
14:34:26.807 (loader): remote cmd from 3064: "show:arduino_attempt_reboot"
14:34:26.807 (loader): got request to show arduino rebooting message
14:34:26.811 (reboot 64): Sending command: comment: Teensyduino 1.60 - WINDOWS (teensy_reboot)
14:34:26.811 (loader): remote cmd from 3064: "comment: Teensyduino 1.60 - WINDOWS (teensy_reboot)"
14:34:26.818 (loader): remote cmd from 3064: "status"
14:34:26.827 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:26.827 (reboot 64): hid_send_feature
14:34:26.899 (loader): remote cmd from 3064: "status"
14:34:26.915 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:26.915 (reboot 64): status read, retry 0
14:34:27.029 (loader): remote cmd from 3064: "status"
14:34:27.035 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.035 (reboot 64): status read, retry 1
14:34:27.138 (loader): remote cmd from 3064: "status"
14:34:27.145 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.145 (reboot 64): status read, retry 2
14:34:27.248 (loader): remote cmd from 3064: "status"
14:34:27.252 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.252 (reboot 64): status read, retry 3
14:34:27.356 (loader): remote cmd from 3064: "status"
14:34:27.363 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.363 (reboot 64): status read, retry 4
14:34:27.466 (loader): remote cmd from 3064: "status"
14:34:27.470 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.470 (reboot 64): status read, retry 5
14:34:27.573 (loader): remote cmd from 3064: "status"
14:34:27.580 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.580 (reboot 64): status read, retry 6
14:34:27.682 (loader): remote cmd from 3064: "status"
14:34:27.686 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.686 (reboot 64): status read, retry 7
14:34:27.791 (loader): remote cmd from 3064: "status"
14:34:27.796 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.796 (reboot 64): status read, retry 8
14:34:27.899 (loader): remote cmd from 3064: "status"
14:34:27.906 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:27.906 (reboot 64): status read, retry 9
14:34:28.007 (loader): remote cmd from 3064: "status"
14:34:28.012 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.012 (reboot 64): status read, retry 10
14:34:28.114 (loader): remote cmd from 3064: "status"
14:34:28.121 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.121 (reboot 64): status read, retry 11
14:34:28.222 (loader): remote cmd from 3064: "status"
14:34:28.232 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.232 (reboot 64): status read, retry 12
14:34:28.350 (loader): remote cmd from 3064: "status"
14:34:28.354 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.354 (reboot 64): status read, retry 13
14:34:28.468 (loader): remote cmd from 3064: "status"
14:34:28.476 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.476 (reboot 64): status read, retry 14
14:34:28.591 (loader): remote cmd from 3064: "status"
14:34:28.597 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.597 (reboot 64): status read, retry 15
14:34:28.698 (loader): remote cmd from 3064: "status"
14:34:28.706 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.706 (reboot 64): status read, retry 16
14:34:28.806 (loader): remote cmd from 3064: "status"
14:34:28.810 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.810 (reboot 64): status read, retry 17
14:34:28.914 (loader): remote cmd from 3064: "status"
14:34:28.920 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:28.920 (reboot 64): status read, retry 18
14:34:29.021 (loader): remote cmd from 3064: "status"
14:34:29.031 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.031 (reboot 64): status read, retry 19
14:34:29.143 (loader): remote cmd from 3064: "status"
14:34:29.149 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.149 (reboot 64): status read, retry 20
14:34:29.255 (loader): remote cmd from 3064: "status"
14:34:29.265 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.265 (reboot 64): status read, retry 21
14:34:29.379 (loader): remote cmd from 3064: "status"
14:34:29.385 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.385 (reboot 64): status read, retry 22
14:34:29.485 (loader): remote cmd from 3064: "status"
14:34:29.490 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.490 (reboot 64): status read, retry 23
14:34:29.593 (loader): remote cmd from 3064: "status"
14:34:29.599 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.599 (reboot 64): status read, retry 24
14:34:29.703 (loader): remote cmd from 3064: "status"
14:34:29.709 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.709 (reboot 64): status read, retry 25
14:34:29.816 (loader): remote cmd from 3064: "status"
14:34:29.821 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.821 (reboot 64): status read, retry 26
14:34:29.923 (loader): remote cmd from 3064: "status"
14:34:29.928 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:29.928 (reboot 64): status read, retry 27
14:34:30.031 (loader): remote cmd from 3064: "status"
14:34:30.038 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.038 (reboot 64): status read, retry 28
14:34:30.139 (loader): remote cmd from 3064: "status"
14:34:30.145 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.145 (reboot 64): status read, retry 29
14:34:30.247 (loader): remote cmd from 3064: "status"
14:34:30.253 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.253 (reboot 64): status read, retry 30
14:34:30.356 (loader): remote cmd from 3064: "status"
14:34:30.361 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.361 (reboot 64): status read, retry 31
14:34:30.463 (loader): remote cmd from 3064: "status"
14:34:30.468 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.468 (reboot 64): status read, retry 32
14:34:30.571 (loader): remote cmd from 3064: "status"
14:34:30.576 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.576 (reboot 64): status read, retry 33
14:34:30.678 (loader): remote cmd from 3064: "status"
14:34:30.683 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.683 (reboot 64): status read, retry 34
14:34:30.786 (loader): remote cmd from 3064: "status"
14:34:30.792 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.792 (reboot 64): status read, retry 35
14:34:30.894 (loader): remote cmd from 3064: "status"
14:34:30.898 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:30.898 (reboot 64): status read, retry 36
14:34:31.002 (loader): remote cmd from 3064: "status"
14:34:31.006 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.006 (reboot 64): status read, retry 37
14:34:31.108 (loader): remote cmd from 3064: "status"
14:34:31.112 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.112 (reboot 64): status read, retry 38
14:34:31.216 (loader): remote cmd from 3064: "status"
14:34:31.222 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.222 (reboot 64): status read, retry 39
14:34:31.324 (loader): remote cmd from 3064: "status"
14:34:31.328 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.328 (reboot 64): status read, retry 40
14:34:31.433 (loader): remote cmd from 3064: "status"
14:34:31.438 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.438 (reboot 64): status read, retry 41
14:34:31.542 (loader): remote cmd from 3064: "status"
14:34:31.546 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.546 (reboot 64): status read, retry 42
14:34:31.651 (loader): remote cmd from 3064: "status"
14:34:31.658 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.658 (reboot 64): status read, retry 43
14:34:31.760 (loader): remote cmd from 3064: "status"
14:34:31.766 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.766 (reboot 64): status read, retry 44
14:34:31.869 (loader): remote cmd from 3064: "status"
14:34:31.874 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.874 (reboot 64): status read, retry 45
14:34:31.979 (loader): remote cmd from 3064: "status"
14:34:31.985 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:31.985 (reboot 64): status read, retry 46
14:34:32.087 (loader): remote cmd from 3064: "status"
14:34:32.092 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.092 (reboot 64): status read, retry 47
14:34:32.196 (loader): remote cmd from 3064: "status"
14:34:32.201 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.201 (reboot 64): status read, retry 48
14:34:32.306 (loader): remote cmd from 3064: "status"
14:34:32.311 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.311 (reboot 64): status read, retry 49
14:34:32.416 (loader): remote cmd from 3064: "status"
14:34:32.423 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.423 (reboot 64): status read, retry 50
14:34:32.525 (loader): remote cmd from 3064: "status"
14:34:32.530 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.530 (reboot 64): status read, retry 51
14:34:32.634 (loader): remote cmd from 3064: "status"
14:34:32.641 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.641 (reboot 64): status read, retry 52
14:34:32.743 (loader): remote cmd from 3064: "status"
14:34:32.749 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.749 (reboot 64): status read, retry 53
14:34:32.852 (loader): remote cmd from 3064: "status"
14:34:32.857 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.857 (reboot 64): status read, retry 54
14:34:32.961 (loader): remote cmd from 3064: "status"
14:34:32.965 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:32.965 (reboot 64): status read, retry 55
14:34:33.069 (loader): remote cmd from 3064: "status"
14:34:33.073 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.073 (reboot 64): status read, retry 56
14:34:33.178 (loader): remote cmd from 3064: "status"
14:34:33.183 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.183 (reboot 64): status read, retry 57
14:34:33.288 (loader): remote cmd from 3064: "status"
14:34:33.292 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.292 (reboot 64): status read, retry 58
14:34:33.397 (loader): remote cmd from 3064: "status"
14:34:33.404 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.404 (reboot 64): status read, retry 59
14:34:33.506 (loader): remote cmd from 3064: "status"
14:34:33.512 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.512 (reboot 64): status read, retry 60
14:34:33.615 (loader): remote cmd from 3064: "status"
14:34:33.621 (reboot 64): Status: 1, 1, 0, 1, 0, 0, C:\Users\sawtelles\AppData\Local\arduino\sketches\67BEE308178533FA7DC1D636922183E9\, Blink.ino.hex
14:34:33.621 (reboot 64): status read, retry 61
14:34:33.725 (reboot 64): Teensy did not respond to a USB-based request to automatically reboot.
14:34:33.730 (loader): remote connection 3144 closed
14:34:33.736 (loader): remote connection 3064 closed
14:34:53.869 (loader): Verbose Info event
 
Well, this is embarrassing...

AI tells me that the loader wasn't getting a reboot response from the board after loading the code. One suggestion was to try a different cable and/or port. I had tried that yesterday without success, but tried again today with yet another cable and port. This time it worked.

Ugh, I have two sayings:

- 90% of the time it's connections
- It's the simple things that get you.

Both proved to be true.
 
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