Stack analysis tool that really work?

Started by pozz in comp.arch.embedded11 hours ago 5 replies

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.


Shutdown behavior and flash storage devices

Started by Dave Nadler in comp.arch.embedded1 week ago 14 replies

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...


Books on LoRa(WAN)?

Started by Philipp Klaus Krause in comp.arch.embedded3 weeks ago 1 reply

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?


64-bit embedded computing is here and now

Started by James Brakefield in comp.arch.embedded2 months ago 58 replies

Sometimes things move faster than expected. As someone with an embedded background this caught me by surprise: Tera-Byte microSD cards are...

Sometimes things move faster than expected. As someone with an embedded background this caught me by surprise: Tera-Byte microSD cards are readily available and getting cheaper. Heck, you can carry ten of them in a credit card pouch. Likely to move to the same price range as hard disks ($20/TB). That means that a 2+ square inch PCB can hold a 64-bit processor and enough storage for memo...


(Semi-) formal methods

Started by Don Y in comp.arch.embedded2 months ago 26 replies

How prevalent are (semi-) formal design methods employed? Which? [I don't have first-hand knowledge of *anyone* using them]

How prevalent are (semi-) formal design methods employed? Which? [I don't have first-hand knowledge of *anyone* using them]


more on arm asm.

Started by Hul Tytus in comp.arch.embedded2 months ago

Jonathon - I'm in the testing phase now but, thankfully, strictly 32 bit code. One trick I've found that's been helpful is "fasmarm", which...

Jonathon - I'm in the testing phase now but, thankfully, strictly 32 bit code. One trick I've found that's been helpful is "fasmarm", which is an offshoot of a 386 et.al. assembler. The name is, if memory serves, flat assembler or fasm. I've got it on a Microsoft xp msdos directory. The fasmarm handles the 64 bit codes which might make it useful for you. Hul Jonathan Harston


Press Release - AEiC 2021, Ada-Europe Reliable Softw. Technol.

Started by Dirk Craeynest in comp.arch.embedded2 months ago

----------------------------------------------------------------------- FINAL Call for Participation ...

----------------------------------------------------------------------- FINAL Call for Participation *** UPDATED Program Summary *** 25th Ada-Europe International Conference on Reliable Software Technologies (AEiC 2021) 7-10 June 2021, Virtual Event www.ada-europe.org/conf...


Embedded linux serial port

Started by pozz in comp.arch.embedded2 months ago 2 replies

I used a simple driver for serial port in Linux with success in many projects, but recently I found an issue with it. The scenario is an...

I used a simple driver for serial port in Linux with success in many projects, but recently I found an issue with it. The scenario is an embedded Linux (running on iMX6) that runs a QT application (that creates a GUI on a touch display) and a C application that communicates over a serial port. When QT application starts some complex graphics (I see its CPU load reaching 70-80%), the ...


Array of bits

Started by pozz in comp.arch.embedded2 months ago 10 replies

Many times I need to pass to functions or serialize an array of bits. If they are just a few (8-16 bits), I decide to use a standard...

Many times I need to pass to functions or serialize an array of bits. If they are just a few (8-16 bits), I decide to use a standard array: uint8_t my_short_array_of_bits[16]; void abits_set_bit(uint8_t *array, size_t size, uint8_t nbit); uint8_t abits_get_bit(uint8_t *arrray, size_t size, uint8_t nbit); It sometimes occurs that the number of bits is much greater, maybe 100 or 200. If ...


Udev-based serial number dependent symlinks for PCIe UIO devices

Started by Wojciech Zabolotny in comp.arch.embedded3 months ago 4 replies

I'm working at a system, where a server manages multiple PCIe data acquisition cards. Each card has its individual serial number available in the...

I'm working at a system, where a server manages multiple PCIe data acquisition cards. Each card has its individual serial number available in the extended PCIe configuration space. The cards are controlled as UIO devices. Unfortunately, it appears that the card are sometimes enumerated in the random order. Proper management of the system requires that there are symlinks created with names permane...


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