We have much experience with Embedded Linux Development Services for Halton and embedded software in general. Our team has been working with UNIX and Linux since the early 1990s using primarily Novell, Redhat and Debian. We have also wrote x86-based and embedded-based kernel-space character and block device drivers; along with user-space drivers for various projects; which where mostly proprietary drivers for private companys. Some of the drivers included:
- IO such as Parallel Port, UART, RS232, RS485 (Modbus RTU/ASCII), RS422, i2c, SPI, USB, Ethernet, wireless (801.11g, 433MHz, 918MHz, XBee, etc), CAN, DAC, ADC and DIO.
- Displays such as LCD and seven-segment displays.
- Motor/actuator controllers such as open-loop and closed-loop PWM for DC/AC motors, servos, stepper motors and solenoids.
- Sensors such as analogue/digital cameras, GPS, accelerators, gyros, encoders, temperature, light, IR and Ultrasonic.
The most popular public kernel-space driver we wrote was the "poor mans closed-loop motor controller" called: Parallel Port PWM/Encoder Kernal Space Linux Driver. And our most popular public user-space driver was the USB Missile Launcher Linux Driver.
Our debugging techniques may involve gdb, valgrind, kmemcheck or simply printf, kprintf, and via DIO (e.g. LEDs or seven-segment displays).
We have extensive knowledge of the Linux command line tools (including the cut down version provided by busybox), packages available, and the inner workings of Linux itself. And have worked with numerous embedded Linux architectures such as x86 CISC, MPU ARM RISC (via OMAP, LPC, BeagleBone, Raspberry Pi and Arduino solutions), FPGA and microcontrollers (MCUs) such as STM32F4, MSP430, Atmel, PIC and LPC. Let alone using ti.com Design Tools for buck-boost converters, lowpass/highpass filters, and power management IC (PMIC)
We have been programming for over 20 years in many languages for generally Linux, BSD (e.g. Mac OSX) or Windows. However generally embedded tasks are done in C, C++, python and/or simple shell scripts using vital tools such as awk, sed, grep, telnet, ssh and netcat (among many others).
Electronics is an art our team has been working with since childhood (from building kits from Dicksmith, Tandy, and Jaycar to designing digital electronic keypads). Since then, we have maintained a constant update of knowledge and experience on the topic, since most of our projects involve either building a circuit from scatch, reviewing circuit designs, programming for target microcontrollers, and/or reworking pre-built PCB's for various needs such as bypassing/hacking solutions, or replacing broken components.
Our primary developer Luke Cole has a history as the "go to man" for many colleagues, and is well known to have "a knack for making things work". To learn more about Luke see his LinkedIn page or personal home page.
