Hi,
I want to know, connecting mBED LPC1768 to PC will power on the board. In my PCB, I am generating 3.3V only. How to power on my mBED micro controller with this.
Along with that, if I dont use I2C and SPI, how to leave those pins in unused condition.
Unfortunately I don’t think powering the board off of of 3V3 only is possible. You can see the schematic here (scroll to the bottom), and the board generates 3V3 via an internal regulator (IC5).
Along with that, if I dont use I2C and SPI, how to leave those pins in unused condition.
If you don’t create I2C or SPI objects in your code, those pins will not be configured as anything!
Should I use any pull down for SPI clock in hardware?
Shouldn’t need one