Ada-Europe 2018 - early registration until May 14

Started by Dirk Craeynest in comp.arch.embedded6 months ago

----------------------------------------------------------------------- 2nd Call for Participation ...

----------------------------------------------------------------------- 2nd Call for Participation *** UPDATED Program Summary *** 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal http://www.ada-europe.org/c...


6750 Errors due to missing ID-Block

Started by pascas in comp.arch.embedded6 months ago

Hi, I received a couple of RCM 6750 Modules. At some I got the following errormessages: line 19 : WARNING SYSCONFIG.LIB : _DC_CLK_DBL_...

Hi, I received a couple of RCM 6750 Modules. At some I got the following errormessages: line 19 : WARNING SYSCONFIG.LIB : _DC_CLK_DBL_ should always be defined, but was not defined: line 20 : WARNING SYSCONFIG.LIB : Defined _DC_CLK_DBL_ to 0 (disabled clock doubler recommendation). line 27 : ERROR BOARDTYPES.LIB : No ID Block found on the target board. line 28 : ERROR BOARDTY...


Convert NTP UTC time to localtime (newlib)

Started by pozz in comp.arch.embedded7 months ago 12 replies

My platform is an NXP MCU Cortex-M3 running an SNTP client on top of lwip TCP/IP stack. I correctly receive current time (seconds from epoch)...

My platform is an NXP MCU Cortex-M3 running an SNTP client on top of lwip TCP/IP stack. I correctly receive current time (seconds from epoch) in UTC. Now I would like to convert it in struct tm *localtime*. There's localtime() function that is what I tried to call. However, as expected, localtime() returns UTC. My C libraries are newlib and I suspect newlib thinks the timezone is U...


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

Started by Bill Giovino in comp.arch.embedded7 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.embedded7 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.embedded8 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.embedded8 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.embedded8 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.embedded8 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.embedded9 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 ;-)


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