Have people here used the LPC1343 Cortex-M3 chip?
I've built a few small circuits with PIC microcontrollers before but now I'm using an LPC1243 Cortex-3/ARM. I've been using an LPCXpresso prototype board which has worked very nicely but I want to build a proper PCB now for my circuit. I'm finding this chip a lot nicer to work with in software than PICs (Which i also like!)
With the PICs my experience was that it was easy to forget something when building the hardware. For example a pin needed pulling low to disable low voltage programming on some pics or the chip wasn't programmable.
My circuit is simply a 18x2 line LCD module connected to the chip which gets its input from a PC connected via a USB HID interface. I have it all working on the prototype board / breadboard.
On the LPC1343 I plan to connect
- The power supply pins to power and decoupling capacitors
- The 12 MHZ crystal and capacitors.
- The 6 I/O pins I need to drive my hardware (An LCD module)
- The USB pins to a USB port via resistors and a pull up resistor
- Switches on the reset pin and the pin that enables the internal USB bootloader
And that's all. My question is, are there any other pins I need to connect? It's important that I keep this as simple as possible as it's my first "hobby" project with the chip and frankly it's going to be hard enough to solder it without adding extra complexity (But I'm confident I can do it!)
I guess I should post a schematic really, but have I missed anything obvious?