Press Release - Reliable Software Technologies, Ada-Europe 2018

Started by Dirk Craeynest in comp.arch.embedded1 month ago

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

----------------------------------------------------------------------- FINAL Call for Participation *** UPDATED Program Summary *** 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal ...


Use of soft float?

Started by Philipp Klaus Krause in comp.arch.embedded2 months ago 13 replies

While those who make heavy use of floating-point computations in embedded sytems probably go for systems with hardware support...

While those who make heavy use of floating-point computations in embedded sytems probably go for systems with hardware support for floating-point calculations, there are plenty of systems without such support out there. And the existence of soft float implementations indicates that there is a real need for doing floating-point computations on systems without hardware floating-point support. ...


Guest Webinar: Heterogeneous Multiprocessing with Android on NXP i.MX 7

Started by Matthew Do in comp.arch.embedded2 months ago

Asymmetric multiprocessing (AMP) systems fulfill the need for high performances and real-time by combining the responsiveness of a MCU (Cortex-M)...

Asymmetric multiprocessing (AMP) systems fulfill the need for high performances and real-time by combining the responsiveness of a MCU (Cortex-M) with the processing power of an application processor which runs a full OS. This webinar presents a technical overview on asymmetric multiprocessing and its implementation on an NXP i.MX 7 Colibri System on Module running Android on the MPU (Cortex-A,...


Wear-leveling and Journaling file system for NOR flash?

Started by Dave Nadler in comp.arch.embedded2 months ago 3 replies

What are folks using for reliable file system on for example SST26VF064B 64Mbit SQI flash? Naive FAT will quickly wear out device for some...

What are folks using for reliable file system on for example SST26VF064B 64Mbit SQI flash? Naive FAT will quickly wear out device for some uses; needs a wear-leveling file system. Needs to be power-off safe as well; no corrupted file system from arbitrarily-timed power cut. Anybody? Thanks, Best Regards, Dave PS: A customer of ours used TINY by HCC some years back. It is unfortunately ...


Cypress PSOC 6

Started by Anonymous in comp.arch.embedded2 months ago 3 replies

It has been a while since I looked at anything Cypress. I have a couple of PSOC something sticks that were fun to play with a bit, but I never...

It has been a while since I looked at anything Cypress. I have a couple of PSOC something sticks that were fun to play with a bit, but I never used the CPU for a project. Now they have come out with a PSOC 6 with asymmetric dual processors, and M4 and a M0+ with an optional BLE radio and stack. Looks like they are using the M0+ to control the BLE and the M4 is for user code. I t


arm-gcc: avoid calling other system functions

Started by pozz in comp.arch.embedded2 months ago 18 replies

I'm trying to put all ISRs in RAM[*]. Unfortunately, depending on the code, arm-gcc could call some system functions that are located in...

I'm trying to put all ISRs in RAM[*]. Unfortunately, depending on the code, arm-gcc could call some system functions that are located in Flash. For example, if I use a switch statement, the compiler calls a piece of code of system libraries (that are in Flash) that use a table lookup to manage the switch. Is it possible to force arm-gcc to avoid calling system functions from ISRs, so...


Plug&Play solution to reach an embedded HTTP server under a router

Started by pozz in comp.arch.embedded2 months ago 26 replies

I'm designing a electronic device running an embedded HTTP server. I'm using lwip TCP/IP stack and the httpd application that comes with...

I'm designing a electronic device running an embedded HTTP server. I'm using lwip TCP/IP stack and the httpd application that comes with lwip. Because the device is under an ADSL router and the public IP is dynamic, I need to register to a DDNS service, configure it in the router and open one port (NAT). These steps are too tricky for the most of my users. So I'm thinking to a simpler so...


Unit testing for embedded development

Started by pozz in comp.arch.embedded2 months ago 4 replies

I'm not an expert on test-driven development. I know the general ideas behind TDD, however I never used it in my projects. I want to start...

I'm not an expert on test-driven development. I know the general ideas behind TDD, however I never used it in my projects. I want to start using TDD, at least creating some unit testing on some more critical units. However I have many difficulties. For a module that calculates a checksum, it is very simple to create a unit test. However an embedded firmware is more complex. Consider...


CAN Sniffer on Altera DE2-115 Board

Started by Ryo Kato in comp.arch.embedded2 months ago 2 replies

Hi there, I am trying to implement a CAN sniffer on an Altera DE2-115 evaluation board with the Terrasic AD/DA data conversion card (High Speed...

Hi there, I am trying to implement a CAN sniffer on an Altera DE2-115 evaluation board with the Terrasic AD/DA data conversion card (High Speed Mezzanine Card (HSMC) via SMA. I am using two A/D channels for CAN_H and CAN_L bus signals. Before testing it with real CAN signals I want to make sure that the connection is right in terms of voltage swing, differential termination and peak


Ada-Europe 2018 - early registration until May 14

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


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