cpldcpu writes:
I grew fond of NXPs new LPC800 Cortex M0+ microcontrollers. I designed a small breakout for the LPC812 TSSOP20. This is the second revision. It includes push buttons for reset and activating the serial bootloader. The board has an integrated 500mA 3.3V LDO to supply both the MCU and connected devices from the USB port.
The four pins on the top side (5V,RX,TX,GND) can be used to connect a cheap USB to serial adapter and program the device via the internal bootloader using FlashMagic.
Hi, wondering what toolchain one would recommend for NXP ARM chips. I’m about to get started with a LPC1751.
NXP provides a free Eclipse based IDE called LPCXpresso. It’s fairly decent. Alternatively you can use CooCox or Keil uVision.
Ahh, cool. LPCXpresso looks to be code-size limited though? Or is that just the compiler – can I substitute ARM-GCC? Have you done any real-time debugging over SWD with LPCXpresso or CooCocks? I’ve used Keil uVision for playing with STM32F4 discovery and I hated it.
LPCXpresso has a download limit of 256KB for the free edition now. It used to be 128KB but they recently changed it. The compiler itself isn’t limited.
Ah I see. LPC1751 is only 32KB Flash so the limit shouldn’t be an issue there, I think.
The 256KB is actually the debug limit. There is no limit to code size while programming the flash.