Dynamic embedded memory

Dynamic embedded memory management part 2

As a follow-up to the previous article, here are some tips to determine the use of the heap by your program.

In C

In C, it is quite difficult to estimate heap usage because the allocator functions are type-erased, i.e. the return type of the alloca...

software algorithm c++ embedded
Cycle precise delay loop in C++

Implementing a cycle-precise delay loop in C++ for embedded system

In a recent work on Marlin's printer firmware, I found a pending pull request about waiting for precise, ideally nanosecond timed, delays.

While it looked like easy at first, the implementation proved tricky. This post explains t...
algorithm c++ embedded Marlin
MQTT minimal knowledge myths and facts

MQTT 5 minimal knowledge

After using MQTT for years, we've found that many misunderstanding and misconception are still widespread about the protocol. So here's a document that list what is, and what isn't MQTT capable of.

MQTT is a pub/sub protocol

MQTT was created as a way to synchronize d...
Software MQTT c++
eMQTT5 technical review

Technical review for minimization of resources in eMQTT5

eMQTT5 is a MQTT v5.0 client that's targetting low resource usage for embedded system.

In order to achieve this goal, we've used many tricks and technics that we'll present below.

No heap allocation

On a 4GB computer, allocating memor...

Software MQTT c++
Dynamic embedded memory

Dynamic embedded memory management

When you have an embedded system with limited memory, you are forced to think twice about how you are going to spend your budget. The most obvious solution is to avoid dynamic memory allocation and deal with static pool of memory you are managing yourself complet...
software algorithm c++ embedded