Browsing All posts tagged under »stmicroelectronics«

STM32 Nucleo: access SD cards with C standard library

July 3, 2016

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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 […]

HTTPS client on STM32 Nucleo-F411RE

February 4, 2016

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One of my goal of the past months was to use an STM32 Nucleo board to get a webpage through HTTPS, using an Ethernet shield for TCP/IP stack. I was close last time, but I discovered that my Nucleo-F103RB did not have enough RAM. Now I have my hands on a Nucleo-F411RE that has 128KiB of RAM […]

STM32 NUCLEO-F103RB has low resources for TLS 1.2

January 10, 2016

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It’s been months since I started playing with a STM32 Nucleo + Ethernet shield. One of the objectives that I chase is to build a device for the Internet of Things that implement reasonably secure communications. In an effort to avoid reinventing the wheel (or at least to not reinvent too many wheels) I wanted to see if […]

DNS client on STM32 Nucleo and W5100

December 13, 2015

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I am still working on a device consisting of STM32 Nucleo F103RB with a W5100 Ethernet shield. This time I included a DNS client, so that the device can connect to a server by knowing its name. The name resolving can be invoked by using the POSIX functions getaddrinfo and gethostbyname. DNS queries can have different […]

DHCP client on STM32 Nucleo and W5100

December 7, 2015

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I am still working on a device consisting of STM32 Nucleo F103RB with a W5100 Ethernet shield. This time I included a DHCP client, so that when the device is attached to a network, it will ask for an IP address instead of being statically allocated. The DHCP protocol follows the RFC 2131 and RFC 2132, and […]

Arduino Ethernet shield on STM32 Nucleo

August 2, 2015

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I have a clone of the Arduino Ethernet shield R2, and I already hooked it up on an Arduino Uno, as explained in a previous post. But I also have an STM32 Nucleo-F103RB board, which is similar to Arduino with respect to many of its pins, so I wanted to try this shield with it. The main […]

libopencm3 on STM32 Nucleo board

April 19, 2015

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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, […]

ST Nucleo F103RB works with OpenOCD 0.8.0

November 11, 2014

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Full disclosure: I work at ST Microelectronics, but what I write here is purely my opinion and my work, conceived and conducted in my spare time. The ST Nucleo boards are development platforms mounting an STM32 microcontroller, made for the same enthusiasts that are attracted to Arduino and the like. They have between 64KiB and 512KiB of […]

ChibiOS kernel on Olimex STM32-P152

May 2, 2014

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I wanted to try the ChibiOS/RT real-time operating system on my micro-controller board that mounts an STM32L152VBT6. ChibiOS is one of many alternative real-time operating systems such as FreeRTOS, RTEMS, eCos and NuttX. It supports many platforms and it’s actively developed by Giovanni Di Sirio (full disclosure: we both work at STMicroelectronics). I downloaded the […]

Micron Technology laying off 419 employees in Italy

March 7, 2014

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Micron is a healthy and growing company. During last quarter it had 4 billions of revenues, more than doubling last year results, and they’re in good shape with 300 millions of net income. Micron is laying off 419 employees in Italy. It started a “procedure of mass lay-off” that, if it’s not stopped before April, […]