STM32 Nucleo: access SD cards with C standard library

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 … Continue reading →

Using CodeSourcery bare metal toolchain for Cortex-M3

CodeSourcery provides toolchains for many architectures, and among them there are "bare metal" toolchains that produce programs that can be run natively on the processor. In the past I already explored some possibilities about developing bare metal ARM programs: Simplest bare metal program … Continue reading →

Using Newlib in ARM bare metal programs

When dealing with embedded software, I often find useful to have the standard C functions we all learn during our first programming course: printf, malloc, getchar, strncpy, ... A common way to have them is using Newlib. Newlib is an implementation of the standard C library that is specifically … Continue reading →

Freedom Embedded

Balau's technical blog on open hardware, free software and security

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STM32 Nucleo: access SD cards with C standard library

Using CodeSourcery bare metal toolchain for Cortex-M3

Using Newlib in ARM bare metal programs