Browsing All posts tagged under »gcc«

STM32 Nucleo: access SD cards with C standard library

July 3, 2016


The ST Nucleo is an Arduino-like board with an STM32 as the microcontroller, and many Arduino shields can be mounted on it. I recently played with an Ethernet shield for the network connection, but since the shield also contains a microSD card slot, I wanted to access the SD card to read/write files. I’d like to […]

Inline assembly in GCC [linux-insides]

May 2, 2016


The news site lwn just posted a guide on GCC inline assembly. The guide is written in plain colloquial language and is a great complement to GCC documentation on the matter, which is more of a reference of the various functionalities. I found that the extended form of inline assembly is a powerful way to use the machine special […]

libopencm3 on STM32 Nucleo board

April 19, 2015


This article is part of a series about developing for STM32 micro-controllers on Linux. A few days ago I talked about libopencm3, an open source library to access Cortex-M functionalities and peripherals of many micro-controllers, especially STM32 variants. I wanted to use this library to develop on a Nucleo board that I have in my hand, […]

libopencm3 for the license-sensitive Cortex-M developer

April 12, 2015


I was thinking of starting a new open source project that should run on STM32 boards, and I realized that it would need a lot of low level code that accesses many different peripherals. One of the first libraries that comes to mind, and I bet it’s the same for many Cortex-M developers, is ARM CMSIS. ARM […]

STM32-P152 development with Eclipse on Linux

February 23, 2014


In this post I show how to use Eclipse to create a simple "blink" program, flash it on a STM32-P152 board and attach to it with a debugger. This has been executed with the help of Eclipse plugins, GCC ARM Embedded toolchain, OpenOCD, C232HM FTDI JTAG cable. This approach can be adapted to many Cortex-M targets and many JTAG adapters.

Free Eclipse ARM GCC OpenOCD Toolchain for Windows | Ångstroms And Algorithms

February 13, 2014


This new blog called Ångstroms And Algorithms has a complete tutorial on developing and debugging for ARM microcontrollers on Windows. In particular he’s using a STM32-E407 board, an ARM-USB-TINY-H JTAG adapter, ARM GCC toolchain and Eclipse. The tutorial is divided in 4 parts: Free Eclipse ARM GCC OpenOCD Toolchain for Windows Introduction ARM GCC Eclipse IDE GDB / OpenOCD Debugger Personally I am not […]

Analyzing C source files dependencies in a program

November 24, 2013


This post shows an approach to draw graphs representing the dependency of C source files and modules throughout a complete program. The implementation of this method uses the functionalities of GNU ld to create a cross reference table, then NetworkX to create a graph and Graphviz to visualize it. The approach is applied to a simple example and a real embedded application (U-Boot).