Even I write software for embedded systems for more than 10 years, there's an argument that from time to time let me think for hours and leave...

Even I write software for embedded systems for more than 10 years, there's an argument that from time to time let me think for hours and leave me with many doubts. Consider a simple embedded system based on a MCU (AVR8 or Cortex-Mx). The software is bare metal, without any OS. The main pattern is the well known mainloop (background code) that is interrupted by ISR. Interrupts are use...

I found a nice tool[1] on GitHub. I run it on one of my embedded projects and after a couple[2] of fixes, it eventually printed some good...

I found a nice tool[1] on GitHub. I run it on one of my embedded projects and after a couple[2] of fixes, it eventually printed some good output. There were many unresolved functions, mainly from libc, C runtime, interrupts. I defined all of them in .msu, so now in the final output there aren't unresolved functions. Now there's another big problem. Many functions have an unbounded s...

As a *rough* figure, what would you expect the bandwidth of a disk drive (spinning rust) to do as a function of number of discrete files being...

As a *rough* figure, what would you expect the bandwidth of a disk drive (spinning rust) to do as a function of number of discrete files being accessed, concurrently? E.g., if you can monitor the rough throughput of each stream and sum them, will they sum to 100% of the drive's bandwidth? 90%? 110? etc. [Note that drives have read-ahead and write caches so the speed of the media migh...

I have a CPU board that interfaces to a standard 16x2 chars display, based on HD44780 controller. I'd like to replace this display with a...

I have a CPU board that interfaces to a standard 16x2 chars display, based on HD44780 controller. I'd like to replace this display with a full-color big TFT display, maybe 10", but I can't change the firmware of the CPU (because I don't have the source code and I can't rewrite it, because of cost and time). The simple idea is to create an interface between the current CPU board and t...

In one of my projects that run on a Cortex-M0+ MCU, I have a few arrays of structs. Now I need to increase the size of the arrays, but I'm out...

In one of my projects that run on a Cortex-M0+ MCU, I have a few arrays of structs. Now I need to increase the size of the arrays, but I'm out of RAM, so I'm searching for ways to save some space in RAM. One simple way is to pack the structs, for example with __attribute__((packed)) in gcc. I can save some padding bytes (that waste some memory) for each element of the array, so t...

----------------------------------------------------------------------- Call for Contributions 26th...

----------------------------------------------------------------------- Call for Contributions 26th Ada-Europe International Conference on Reliable Software Technologies (AEiC 2022) 14-17 June 2022, Ghent, Belgium www.ada-europe.org/conference2022 Organized by Ada-Eu...

Hi We have an immediate Openings with Our Client for a long term contract position Position #1 Job Title: Sr Java Backend Developer...

Hi We have an immediate Openings with Our Client for a long term contract position Position #1 Job Title: Sr Java Backend Developer Location: Ashburn VA / Piscataway NJ / Alpharetta GA / Dallas TX / Tampa FL Duration: 12 months Skills Required • Senior Java developer with strong technical background • Core Java, Spring boot & Microservice • Da

arm gcc and Cortex-Mx MCUs embedded systems. Is there a compilation-time (static) tool for stack analysis that really works? The best I...

arm gcc and Cortex-Mx MCUs embedded systems. Is there a compilation-time (static) tool for stack analysis that really works? The best I could find is -fstack-usage and avstack.pl Perl script, but I guess there's another and better way.

Hi All - I'm wondering what other folks do about this issue... Consumer flash storage devices (USB memory stick, SD card, etc) have a nice...

Hi All - I'm wondering what other folks do about this issue... Consumer flash storage devices (USB memory stick, SD card, etc) have a nice internal wear-leveling controller. When one does a write operation, lots of sectors may be internally rejiggered to provide uniform wear (so things that are never rewritten from the application point of view are actually moved around and rewritten). T...

Hello, I'm looking for a book to get a bit into LoRa and LoRaWAN. Should be in French, English or German. Any recommendations?

Hello, I'm looking for a book to get a bit into LoRa and LoRaWAN. Should be in French, English or German. Any recommendations?