If you spend enough time writing interrupt service routines in low-level embedded code, one tiny instruction shows up again and again: RETI. On paper it looks simple. It means RETurn from Interrupt. In practice, though, that small instruction exposes deep architectural differences between microcontroller families. On some CPUs RETI is a real instruction with distinct […]
Atomic Sensor Frames: Sending 9-Axis Data with Minimal Skew over Serial
If you have ever worked with inertial measurement units or any other multi-axis sensor, you have probably run into a subtle but important problem: how do you ensure that all nine axis values you read and transmit actually belong to the same moment in time? Let’s see.
Thank you, Mouser and Texas Instruments !
Mailbag today. Guess my surprise when I found this in my mailbox: It’s always nice to receive snail mail. Paper mail. Envelopes, magazines and newspapers. That’s why I try to subscribe to receive printed editions of all magazines of interest for me. Some time ago I signed a promo email from Texas Instruments in cooperation […]
AVRISP mkII
Until recently I have extensively used my MacBook, AVRDude and USBTiny for my μController projects: Now I got myself a proper tool, the AVRISP markII, mostly because I wanted to use AVRStudio 6.0 features: Key features: Programs both flash and EEPROM Supports fuses and lock bit programming Upgradeable for future device support Supports target voltages from […]
Texas Instruments SmartRF Studio Update 1.7.1
SmartRF™ Studio is a Windows application that can be used to evaluate and configure Low Power RF-ICs from Texas Instruments.
RFM12B Command Calculator for Mac
Inspired by this project for RFMB12 and needing a similar one for my Mac, I started to build one myself: Next – a version for iPad. Stay tuned. 😉
Breakout board for RFM12B prototypes
Today I started to complete the design of the RF12B Breakout Board for various prototyping.