Mac Support

This guide helps you use the Dev Chip Board on macOS (including M1/M2 models). There are two possible behaviors when connecting the board.

Scenario A – macOS Recognizes the Board Automatically

✅ Steps:

“Do you want to allow Silicon Labs CP2105 Dual USB to UART Bridge Controller to connect to this Mac?”

ls /dev/cu.*

7. Check for /dev/cu.SLAB_USBtoUART.

 

Done! Now, open ChipInventor and you should see the message:
“✅ ChipLoader is Ready!”

Scenario B – macOS Does Not Recognize the Device

If no prompt appears and the board is not listed in /dev/cu.*, follow the steps below to manually install the CP210x driver.

Follow the steps:

a) Download the Driver

b) Install the Driver

c) Allow System Extension (if blocked)

System software from developer ‘Silicon Labs’ was blocked

d) Reconnect and Verify

3. Run:

ls /dev/cu.*

 

e) Final Step: Test with ChipInventor

1. Open ChipInventor → go to the Synthesis tab.

2. If all is working, you’ll see:

ChipLoader is Ready!