How to protect signals from MCU

Started by pozz in comp.arch.embedded1 year ago 12 replies

I need to connect some signals (around 10) coming from an MCU to another MCU/logic IC far away round 1 meter. They are on different PCBs (and...

I need to connect some signals (around 10) coming from an MCU to another MCU/logic IC far away round 1 meter. They are on different PCBs (and different metallic cases). The connectors between the units will be standard D-SUB. I don't know if it's safe to route signals from MCU directly to D-SUB connector on the same PCB, 1 meter cable, D-SUB connector and finally the destination IC. ...


DeCPS 2019 - Dependable and Cyber-Physical Systems Engineering

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

[Apologies if you receive multiple copies of this call for...

[Apologies if you receive multiple copies of this call for papers.] ======================================================================= Call for Papers DeCPS 2019 - Workshop on Challenges and new Approaches for Dependable and Cyber-Physical Systems Engineering 14 June 2019, Warsaw, Poland Co-located with the Ada-Europe 24th International Conference on Reliable Software Technol...


Ecos, LwIP, PPP and GPRS

Started by Stef in comp.arch.embedded1 year ago 9 replies

Hello, I'm trying to get a GPRS PPP connection going in eCos using the LwIP stack, but no luck so far. It seems that my provider and the...

Hello, I'm trying to get a GPRS PPP connection going in eCos using the LwIP stack, but no luck so far. It seems that my provider and the LwIP PPP code do not understand each other. I', trying to find examples of correct communication but have had no luck so far and RFC1661 is a bit hard to decode. Does anyone know good links to information on this subject? Google has not come up with ma...


Ceramic capacitor failure

Started by steve in comp.arch.embedded1 year ago 24 replies

I am seeing some failures of ceramic capacitors in a product I designed. These are 1206 22uf 10V ceramic caps, we do not specify a manufacturer....

I am seeing some failures of ceramic capacitors in a product I designed. These are 1206 22uf 10V ceramic caps, we do not specify a manufacturer. The caps are on the output of a 3.3V 1amp 2MHz dc to dc converter (5 amp inductor 2.2uH), there are two in parallel. They become resistive, around 200 ohms. The ripple current is around 0.4 amps total, so I cant see that it is excessive rip


Collection of Byte Magazines 1983-1995

Started by Dave Nadler in comp.arch.embedded1 year ago 6 replies

I have a collection of Byte Magazines from 1983-1995 mostly complete. Any interest before they go to the dump? Free but need to pick up. Lot of...

I have a collection of Byte Magazines from 1983-1995 mostly complete. Any interest before they go to the dump? Free but need to pick up. Lot of history in these!! Thanks, Best Regards, Dave PS: Located near Boston.


Serial Port Emulation

Started by Anonymous in comp.arch.embedded1 year ago 44 replies

I'm working to improve a test program for the hardware I use to test some boards I make. These boards are tested using a test fixture controlled...

I'm working to improve a test program for the hardware I use to test some boards I make. These boards are tested using a test fixture controlled over an RS-232 port from the PC. So I don't need to lug hardware around with me I emulate the test fixture on the same PC I run the test program. I need comm port emulation software that will emulate a bridge between two serial ports to


Remote Debugging

Started by Anonymous in comp.arch.embedded1 year ago 24 replies

I am working on a test fixture that uses an RS-232 port for control. I travel a lot and don't want to have to drag the test fixture around with...

I am working on a test fixture that uses an RS-232 port for control. I travel a lot and don't want to have to drag the test fixture around with me. Some time ago I was working with an eval board via serial port and used an rPi (Raspberry Pi) to put the serial port on the network and work from another room. That worked pretty well. I didn't have a means of rebooting the tar


Scooter software bug applies brakes hard, sends hipsters airborne

Started by Dave Nadler in comp.arch.embedded1 year ago 1 reply

Gotta love it: https://www.bbc.com/news/technology-47371925

Gotta love it: https://www.bbc.com/news/technology-47371925


FOSDEM 2019 Ada Developer Room - presentations & videos online

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

----------------------------------------------------------------------- *** Presentations, videos, pictures available online *** ...

----------------------------------------------------------------------- *** Presentations, videos, pictures available online *** 9th Ada Developer Room at FOSDEM 2019 Saturday 2 February 2019 Universit? Libre de Bruxelles (ULB), Solbosch Campus, Room AW1.125 Avenue Franklin D. Roosevelt Laan 50, B-1050 Brussels, Belgium ...


How to avoid a task not executed in a real-time OS?

Started by Robert Willy in comp.arch.embedded2 years ago 30 replies

Hi, I was asked the question in the title some time ago. I had some real-time embedded system experience but with RTOS. A watch-dog can avoid a...

Hi, I was asked the question in the title some time ago. I had some real-time embedded system experience but with RTOS. A watch-dog can avoid a task not called in a real-time system. But in a RTOS, what is the right answer for it? I knew task priority, a timer triggered event all can influence a task execution. But they didn't look like the correct answer. What is the right answer do you thi...


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