embedded

LPC810 Hacking

The LPC810 is a Cortex-M0+ in a 8 pin PDIP. PIO0_5 /RESET (o ) PIO0_0 U0_RXD PIO0_4 U0_TXD ( ) Vss PIO0_3 ( ) Vdd PIO0_2 ( ) PIO0_1 /ISPEN See also the user manual.

Bone v2

I’m using a small, no-name RT5370 from ebay. It’s not fast but it is compatible and reliable, unlike the other three adapters that I have. Disable interface renaming: cd /etc/udev/rules.

AVR Hacking

Programmer JTAG Name M168 T85 3 - MOSI 17 5 4 - RESET 1 1 5 - SCK 19 7 6 - GND 8 4 7 - MISO 18 6 ATTINY85 PB5 (o ) VCC PB3 ( ) PB2 PB4 ( ) PB1 GND ( ) PB0 Serial 5V o o o o TX o o RX

ARM host

I’d like a lower power server for inside my home. Some requirements: Cortex-A9, quad core, 1.2 Ghz or more. 2 GiB Ethernet. USB hosted is OK, native gigabit is better.

Olimex STM32-H103 Notes

The Olimex STM32-H103 is a ST STM32F1 based development. Pluses are the USB port, proper JTAG connector, and all I/O out on 0.1” pitch pins. Details: STM32F103RBT6 CPU 128 Ki flash, 20 Ki RAM, 72 Mhz Standard 20 pin JTAG connector Green STAT LED on PC12 8 MHz crystal Links:

Fancybox

OpenWRT can do quite a few things I need on my network that are running in many places, including: DHCP server with DNS hooks - dnsmasq Netboot/DHCP/TFTP server - dnsmasq Proxy - polipo It could let me use IPv6.

LPC1114 Temperature Sensor

The idea is to use the Cortex-M0 based LPC1114 as a low power micro in a remote temperature sensor. Use a solar light as the case and power source and it should run forever.

BeagleBone

This page has terse notes on installing the Linaro LEB root filesystem on a BeagleBone, setting up the USB Ethernet gadget, and enabling basic networking. Initial Grab the boot partition contents to get MLO, u-boot, and the kernel.

libmad on the BeagleBone

(or really any Cortex-A) [[notes/bonemad]] I’m mainly interested in performance as power used ~= 1/performance. Using libmad-0.15.1b-7ubuntu1 from Precise and Linaro GCC 4.6 2012.02 as a cross build setup.

BeagleBone playing media

I have a XITEL MD-PORT AN1 USB Audio adapter. It sounds quite good. Can I hook it to my BeagleBone and use it as a remote audio player? On Precise I see: