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Hi Bricomp and joepasquariello, thank you for the suggestions. I was able to do the SD card update

Update: I just had gone through the link https://forum.pjrc.com/index.php?threads/ota-through-ethernet-with-teensy-4-1.72233/page-5 and it seems that we have to forcefully make the device_id in the code. Let me try that

Hi, I have used flasherX. I am getting the error abort - new code missing string fw_teensy41 while checking the device_id which is fw_teensy41 But when I use the FlasherX's .hex itself, I am not getting the above error and here the print is new code contains correct target ID fw_teensy41...

Hello BriComp, Thank you for sharing the info and sorry for the late reply. I will have a look at the link.

Hello, Is there a way to program the Teensy from SD card? Say, if I copy a .hex file to the SD card and whether the boot loader pgm can read that .hex file and write it to the flash memory?

Hello Paul, Thank you for the quick reply. It was indeed strange from Windows. I was able to change the COM port with your suggestion. Thank you

Thank you for the reply. teensy_ports -L command gave the following result: usb:0/140000/0/4 COM3 (Teensy 4.1) Serial usb:0/140000/0/1 COM3 (Teensy 4.1) Serial On running teensy_ports.exe, the following details are shown: { "address": "usb:0/140000/0/4", "online": true, "label": "COM3...

Hi, I want to have 2 Teensy boards together in one of my application and today when I tried to connect and program a new Teensy board with 1 Teensy 4.1 already connected to the USB port, the new board also got assigned the same COM port. Rebooting the PC, uninstalling-reinstalling the driver...

Hi, I was using a USB host communication in the timer which caused some delays resulting in the code hang. Increasing the timer interval seemed to resolve the issue. Thank you

Hi, I am try to run a 5mS Timer with the IntervalTimer.h in Teensy4.1 I am listening to serial port characters for begin/end timer. #define testTimerInterval 5000 // Timer Interval for PID loop in microsceconds 100-100uS 1000 - 1mS 10000 - 10 mS 100000 - 100mS void processSerial() { if...