Look! Up in the Sky! It's a Bird! It's a Frog! Its an Autonomous Vehicle!

Started by Bill Giovino in comp.arch.embedded3 months ago 1 reply

A lot of the leading-edge technology for autonomous vehicles is coming from military applications. Actually, the U.S. Navy built what was probably...

A lot of the leading-edge technology for autonomous vehicles is coming from military applications. Actually, the U.S. Navy built what was probably the first drone helicopter back in the 1960's: http://microcontroller.com/news/military_autonomous_vehicles.asp Bill Giovino http://Microcontroller.com


Atmel 328 ext. interupts

Started by Hul Tytus in comp.arch.embedded3 months ago

comp.arch.embedded Atmel 328 external interupts I'm debugging an Atmel AVR 328 that won't generate an external #0 interupt. At present, the...

comp.arch.embedded Atmel 328 external interupts I'm debugging an Atmel AVR 328 that won't generate an external #0 interupt. At present, the timer1 is generating an overflow interupt as would be expected. The input for the #0 ext. interupt (pin 4, d port #2) has been set to generate a mimic signal on another pin, which worked well. The setup for interupt 0 is: ldi areg, 2 ; extern...


X-FAB First Semiconductor Foundry to Achieve IATF-16949 Quality Certification

Started by Bill Giovino in comp.arch.embedded4 months ago

http://microcontroller.com/news/XFAB_IATF16949.asp This is a big deal if you are in automotive semiconductors. Down the line, it could even...

http://microcontroller.com/news/XFAB_IATF16949.asp This is a big deal if you are in automotive semiconductors. Down the line, it could even take business away from TSMC. Bill Giovino http://Microcontroller.com


How Physical Memory Mapping / Allocation works

Started by Ilias Abrams in comp.arch.embedded4 months ago 13 replies

Hi guys, I am new on software programming and I am trying to understand some basic/ important things.I am interested in Bare-metal software...

Hi guys, I am new on software programming and I am trying to understand some basic/ important things.I am interested in Bare-metal software programming, so please give me answers related on this. My question is: who is responsible and manage the physical memory mapping / allocation? Meaning, If I have 1GB physical memory on my system, the 1) CPU or 2) the Bootloader (like GRUB, U-b


SPI Flash: don't work high-speed read at 48MHz

Started by pozz in comp.arch.embedded4 months ago 4 replies

I'm using Microchip SST26VF064B SPI Flash memory with an LPC1768 from LPC. It works until I change the SPI clock frequency from 24MHz to...

I'm using Microchip SST26VF064B SPI Flash memory with an LPC1768 from LPC. It works until I change the SPI clock frequency from 24MHz to 48MHz. I'm using HIGH-SPEED READ command that should work up to 104MHz (the power supply is 3.3V). For example I read 0x28 0x26 when they should be 0x51 0x4C. 0010 1000 0010 0110 -> 0x28 0x26 0101 0001 0100 1100 -> 0x51 0x4C They appears s


A new benchmark suitable for small systems: stdcbench

Started by Philipp Klaus Krause in comp.arch.embedded4 months ago 25 replies

For benchmarking C implementations, the there are a few benchmarks, but they all have their problems. Many benchmarks have memory...

For benchmarking C implementations, the there are a few benchmarks, but they all have their problems. Many benchmarks have memory requirements that are far too high or need functionality not necessarily available. Some are quite one-sided in what they measure (e.g. Whetstone, Dhrystone, Coremark). So, I deciced to write a new benchmark, stdcbench. I wanted it to be suitable for small syste...


Don't you just hate it when the wrong firmware is installed?

Started by Dave Nadler in comp.arch.embedded5 months ago 3 replies

https://www.reuters.com/article/us-bmw-emissions/bmw-to-recall-11700-cars-after-installing-wrong -engine-software-idUSKCN1G728U?il=0 Yikes....

https://www.reuters.com/article/us-bmw-emissions/bmw-to-recall-11700-cars-after-installing-wrong -engine-software-idUSKCN1G728U?il=0 Yikes. Once I had a manufacturer accidentally install test software and ship a pile of boards, but this? Check your work ;-)


Source code static analysis tool recommendations

Started by John Speth in comp.arch.embedded5 months ago 30 replies

Hi folks- Does anybody have any recommendations for static source code analysis tools based on practical use? My customer is asking us to...

Hi folks- Does anybody have any recommendations for static source code analysis tools based on practical use? My customer is asking us to apply a static source code analysis tool to an existing medical product. The product is undergoing changes for which the FDA requires another round of testing. The customer was dinged by the FDA for not using an analysis tool so they want to corr...


FOSDEM 2018 Ada Developer Room - presentations & videos online

Started by Dirk Craeynest in comp.arch.embedded5 months ago

----------------------------------------------------------------------- *** All presentations and videos available online *** ...

----------------------------------------------------------------------- *** All presentations and videos available online *** 8th Ada Developer Room at FOSDEM 2018 Saturday 3 February 2018 Universit? Libre de Bruxelles (ULB), Solbosch Campus, Room AW1.125 Avenue Franklin D. Roosevelt Laan 50, B-1050 Brussels, Belgium ...


Use reserved vectors in Cortex-M3 vector table

Started by pozz in comp.arch.embedded5 months ago 6 replies

Here[1] you will find the vector table of Cortex-M3 core. There are 4 vectors (16 bytes) that are named "Reserved" (plus one more at index...

Here[1] you will find the vector table of Cortex-M3 core. There are 4 vectors (16 bytes) that are named "Reserved" (plus one more at index 13). Do you think they can be used for custom purposes? The word "Reserved" seems this can't be done. I'd like to use those vectors, that are in the non-volatile Flash memory, to store some data. In my case, I will save the MAC address (6 bytes...


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