![]() On another machine I get the same problem with a TDM 400 when I modprobe wctdm ZT_CHANCONFIG failed on channel 1: Inappropriate ioctl for device (25) I spent two days on Scenario A and 3 hours on Scenario B.This problem occurs on more than one machine The /dev/cu.usbmodem1421 was listed as a port option. Unplugged and replugged the USB cable into my arduino.I installed 'Arduino SAM Boards (32-bits ARM Cortex-M3) by Arduino version 1.6.8.In the IDE go to Tools-> Boards -> Boards Manager.Then I installed an updated board configuration from arduino and it worked! Testing on the first board I'd used under scenario A were successful as well. I repeated the steps in scenario A above but the problem remained. Checked the drivers and low and behold, the darned FTDI drivers had RETURNED!! ![]() It had been a while since Scenario A had occurred and since then I'd installed a few OS updates. There was only one Port listed in the IDE, dev/cu.Bluetooth-Incoming-Port. Ioctl("TIOCMGET"): Inappropriate ioctl for device Attempts to load sketches resulted in this lovely error: Using Port : /dev/cu.usbmodem1421Īvrdude: ser_open(): can't open device "/dev/cu.usbmodem1421": No such file or directory This board was an import and clearly not an original Arduino/Genuino. When you restart the arduino IDE, you should see a more comprehensive list of ports besides just the bluetooth port. Task c will be the same EXCEPT you'll type this instead: csrutil enable Restore the apple csrutil by following steps a and b above. Remove the FTDI drivers by opening the terminal program again and entering the following command: sudo rm -R /System/Library/Extensions/AppleUSBFTDI.kext Here's how to do that: a.) power off the mac then hold 'command'+R during the restart until the image of the apple appears.ī.) when the screen refreshes, click on 'Utilities' menu then 'Terminal.Į.) Restart This required a restart in recovery mode. Then you'll need to re-enable it when you are done. ![]() You'll have to disable this process to remove the FTDI driver. The process that enforces this rule is called csrutil. Apple recently installed a new utility that prevents removal of what it considers to be critical components. Downloaded and Installed the CH340 driver.The Port Options in the IDE (Tools-> Port) only showed /dev/cu.incoming-bluetooth-port avrdude: ser_open(): can't open device "COM1": No such file or directory ioctl("TIOCMGET"): Inappropriate ioctl for device Problem uploading to board. Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Sketch uses 1,066 bytes (3%) of program storage space. When I tried to upload it to the board, I got this message: Plugged in a new Arduino Uno R3 board, successfully compiled the standard "Blink" sketch. I literally searched for hours for the answer and ended up using several suggestions.īoth scenarios I solved are documented below as 'Scenario A' and 'Scenario B': I've come across this problem a couple of times. So it makes absolutely no difference what you select from the Tools > Programmer menu. You should be doing an "Upload" (Command-U) not an "Upload using programmer" (Shift+Command+U). It is completely ignored when doing a standard "Upload". The Tools > Programmer menu selection is only used when you do Tools > Burn Bootloader or "Upload Using Programmer. If not, please state in what way it differs. In your Arduino IDE you should see the Arduino as a tty.usbmodemfd131 (or some similar number). Manufacturer: Arduino (Location ID: 0xfd130000 / 8 You can also open a Terminal window and type: system_profiler SPUSBDataTypeĪmongst other things you should see: USB: Under the USB selection (on the left) please confirm whether or not you see something like this: Go to the Apple menu -> About This Mac -> More Info -> System Report ![]() Plug your Uno into the Mac using a known good USB cable.
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