Codewright Editor Issues

Started by Rick C in comp.arch.embedded18 hours ago 22 replies

Maybe I'm stuck in my ways like a dinosaur, but I've always liked my Codewright editor. My latest PC would not take my previous installation of...

Maybe I'm stuck in my ways like a dinosaur, but I've always liked my Codewright editor. My latest PC would not take my previous installation of it though and I had to start fresh. But that means a lot of stuff that worked before doesn't work now. This is ver 7.5, that latest. I don't know exactly how Windows makes the connection when you click on a file type to open it in the


From cooperative to preemptive scheduler: a real example

Started by pozz in comp.arch.embedded5 days ago 32 replies

I noticed my previous post about preemptive OS involved many people and started many discussions, most of them theoric. Someone wrote the...

I noticed my previous post about preemptive OS involved many people and started many discussions, most of them theoric. Someone wrote the synchronization of tasks in preemptive scheduler is not so difficult, after understanding some things. Others suggested to abandon at all preemptive scheduler, considering its pitfalls. Because I know my limits, I don't think I can produce a well-wri...


available toroids

Started by Hul Tytus in comp.arch.embedded6 days ago

I've been looking for a toroid with a cross section area (one side) of probably 2 or 3 square centimeters and an id of about 10 or 12 mm. The...

I've been looking for a toroid with a cross section area (one side) of probably 2 or 3 square centimeters and an id of about 10 or 12 mm. The intended inductor is about 14 micro henries and will handle between 40 to 80 amps in a flyback power supply at, again probably, 100 kc. Fair-Rite, Micrometals, and Magnetics show, at the desired id, cross sections typically less than 1 sqcent. G...


Problem with connecting ADV7280-M to V4L in Rock Pi 4B SoC

Started by Anonymous in comp.arch.embedded2 weeks ago

I have to connect ADV7280-M (contained in the EVAL-ADV7280MEBZ board) board to Rock Pi 4B SoC. I have recompiled the kernel with added adv7180.c...

I have to connect ADV7280-M (contained in the EVAL-ADV7280MEBZ board) board to Rock Pi 4B SoC. I have recompiled the kernel with added adv7180.c driver. The procedure for recompilation of the kernel I have taken from: https://wiki.radxa.com/Rockpi4/dev/kernel-4.4 After that I had to add ADV7280-M to the device tree. /dts-v1/; /plugin/; / { model = "RO


Task priorities in non strictly real-time systems

Started by pozz in comp.arch.embedded2 weeks ago 73 replies

I have always worked on non real-time systems, i.e. when the reaction of the system to an event should occur in a reasonable time. For example,...

I have always worked on non real-time systems, i.e. when the reaction of the system to an event should occur in a reasonable time. For example, when the user presses a button, a motor should start rotating. If the motor starts after 100us or 100ms is not so important. I never used RTOS, so the architecture of my firmware is based on "superloop technique" (background tasks running in the...


PID autotuning - not working for heating application

Started by Frank W. in comp.arch.embedded2 weeks ago 52 replies

Is there a control engineering expert here? I could us a bit of help on how to implement a PID autotune function for a heating application (a...

Is there a control engineering expert here? I could us a bit of help on how to implement a PID autotune function for a heating application (a small boiler). My current PID autotune function produces no reliable results. I use the relay feedback method (?strom and H?gglund) but it seems that the ultimate period Tu - one of the paramters determined with the relay feedback test - is directl...


Problems annotating a symbols' size using gpasms .DEF

Started by Johann Klammer in comp.arch.embedded2 weeks ago 1 reply

I had been trying to output some sort of address name mapping for debugging. Using the Map file seemed promising initially. But when trying to...

I had been trying to output some sort of address name mapping for debugging. Using the Map file seemed promising initially. But when trying to dump memory locations, it became obvious that I needed the sizes, too. The pure MPASM syntax does not seem to allow annotating that information. gpasm looked superior in that respect. Their .DEF extension specifically. BUT it seems to be moving


FINAL CfC Ada-Europe 2020 Conference - Tue 14 Jan deadline!

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

----------------------------------------------------------------------- FINAL Call for Contributions ...

----------------------------------------------------------------------- FINAL Call for Contributions 25th Ada-Europe International Conference on Reliable Software Technologies (AEiC 2020) 8-12 June 2020, Santander, Spain www.ada-europe.org/conference2020 *** DEADLINE Tuesday 14 J...


stty -F /dev/ttyUSB0

Started by Johann Klammer in comp.arch.embedded2 weeks ago 4 replies

stty -F /dev/ttyUSB0 speed 0 baud; line = 0; min = 1; time = 0; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echo (something is...

stty -F /dev/ttyUSB0 speed 0 baud; line = 0; min = 1; time = 0; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echo (something is wrong) stty -F /dev/ttyUSB0 ispeed 38400 stty: /dev/ttyUSB0: unable to perform all requested operations But if I give an obv wrong value it doesn't complain. stty -F /dev/ttyUSB0 ispeed 3840 The dongle is a FTDI Chip TTL-232R-5V USB to TTL...


Group with more traffic than CAE?

Started by Anonymous in comp.arch.embedded3 weeks ago 2 replies

Hi This group has not much traffic Any recommendations for an alternative group? Cheers Klaus

Hi This group has not much traffic Any recommendations for an alternative group? Cheers Klaus


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