Embedded Programming

Matrix math C++ class library for MCUs?

Hi Guys - I'm searching for a C++ matrix math library suitable for Kalman filter implementation on MCUs. I found a few...

4 comments posted 3yrs

posted by drn

4 comments posted 3yrs posted by drn

Embedded Linux processors

I was idly looking to see what was out there in the low end Linux space - something bigger than an ESP32 but more produ...

13 comments posted 3yrs

posted by theom+news

13 comments posted 3yrs posted by theom+news

QFN packages and layout on crowded PCBs

I've been looking at alternative chip packages to improve routing on tight boards. It seems like the issue is space for...

0 comments posted 3yrs

posted by gnuarm.deletethisbit

0 comments posted 3yrs posted by gnuarm.deletethisbit

Renesas GreenPAK Sales/FAE Support

I've been considering a Greenpak device or two or even three, in a respin of a new design. I've identified three functi...

14 comments posted 3yrs

posted by gnuarm.deletethisbit

14 comments posted 3yrs posted by gnuarm.deletethisbit

newlib and time()

I often use newlib standard C libraries with gcc toolchain for Cortex-M platforms. It sometimes happens I need to manag...

21 comments posted 3yrs

posted by pozzugno

21 comments posted 3yrs posted by pozzugno

Learn how to design state machines and generate code (Ad)

You search for an affordable tool to design state diagrams and generate code from them? The SinelaboreRT focus is on ge...

0 comments posted 3yrs

posted by pmue...

0 comments posted 3yrs posted by pmue...

Override libc functions

Many times I'd like to replace libc functions in embedded systems, because of some tests or because I need a different...

8 comments posted 3yrs

posted by pozzugno

8 comments posted 3yrs posted by pozzugno

IAR ARM Cortex-M compiler does not align stack on 8-byte boundary

ARM ABI says that the stack should be 8-byte aligned, but I see cases where the stack is aligned only to 4-byte boundar...

6 comments posted 3yrs

posted by statemachineguru

6 comments posted 3yrs posted by statemachineguru

Help with a HardFault on Cortex-M3

I'm stuck with a stupid issue on a Cortex-M3 (LPC1788 by NXP). It's a classical issue that happens randomly and in diff...

0 comments posted 4yrs

posted by pozzugno

0 comments posted 4yrs posted by pozzugno

Useful bonus feature

I'm just doing some rough prototyping at the minute and to save squinting I put a identifying label on the MCU showing...

3 comments posted 4yrs

posted by andrews

3 comments posted 4yrs posted by andrews

Wide frequency range, arbitrary waveform DDS

To generate frequencies from approximately 0.5 mHz to 12 MHz with a DDS a minimum clock of >24, say 25 MHz, is required...

3 comments posted 4yrs

posted by me

3 comments posted 4yrs posted by me

The I/O drive characteristics in the Attiny24 Datasheet

Good Morning, I was trying to guess the R_on from the curves in the datasheet and got following results: sinking Ron: 3...

1 comments posted 4yrs

posted by klammerj

1 comments posted 4yrs posted by klammerj

Why use non-free compilers (Keil, etc) for architectures supported by SDCC?

I wonder why some developers choose non-free compilers (Keil, IAR, Cosmic, Raisonance, etc) when targeting architecture...

26 comments posted 4yrs

posted by pkk

26 comments posted 4yrs posted by pkk

I2C Communication between two Microcontrollers

I want to test the I2C protocol between two STM32 (STM32L152RC) microcontrollers. Can somebody guide me on how to do it...

14 comments posted 4yrs

posted by neelakantamaagi253

14 comments posted 4yrs posted by neelakantamaagi253

Ftn I/Os documentation best practices

I add a boilerplate to each function definition that declares constraints on inputs, expectations of outputs, performan...

11 comments posted 4yrs

posted by blockedofcourse

11 comments posted 4yrs posted by blockedofcourse