[OT] SQLite

Started by George Neuner in comp.arch.embedded1 day ago

This hit the news yesterday: SQLite contained a remote code execution bug. According to the ZDNet article the bug has been fixed as of v3.26.0...

This hit the news yesterday: SQLite contained a remote code execution bug. According to the ZDNet article the bug has been fixed as of v3.26.0 released December 1st. If your application uses SQLite, you may want to look into updating it. https://blade.tencent.com/magellan/index_en.html https://www.zdnet.com/article/sqlite-bug-impacts-thousands-of-apps-including-all-chromium-based- browse


"Device-to-smartphone" and "smartphone-to-device" technologies

Started by pozz in comp.arch.embedded1 day ago 28 replies

Nowadays the poor embedded developer faces new challenges that go outside the limited world of C/C++ program on a resource constrained...

Nowadays the poor embedded developer faces new challenges that go outside the limited world of C/C++ program on a resource constrained hardware. Now the hardware isn't so resource constrained (Raspberry and many other embedded Linux boards or SOM are just examples) on one side. And the device isn't isolated anymore, it is usually connected (directly or indirectly to Internet). The Th...


Serial terminal (VT100) with automatic save specified data

Started by Stef in comp.arch.embedded4 days ago 15 replies

For a test setup, I have created a small UI using the serial port connected to a VT100 capable terminal (Tera Term). I use the VT100 commands to...

For a test setup, I have created a small UI using the serial port connected to a VT100 capable terminal (Tera Term). I use the VT100 commands to create a "nice" (for certain values of nice) looking output. This works OK. But now I periodically (every few seconds) have an amount of data that needs to be stored on the PC. A CVS like output with a 100 lines or so. I can just spit this out aft...


snprintf return value

Started by pozz in comp.arch.embedded5 days ago 10 replies

I usually have a static buffer and I don't want to use a dynamic buffer. char buf[BUFLEN]; I have to construct a long string, and it is...

I usually have a static buffer and I don't want to use a dynamic buffer. char buf[BUFLEN]; I have to construct a long string, and it is quite easy to call snprintf multiple times: int n = 0; n += snprintf(&buf[n], BUFLEN - n, ...); n += snprintf(&buf[n], BUFLEN - n, ...); n += snprintf(&buf[n], BUFLEN - n, ...); n += snprintf(&buf[n], BUFLEN - n, ...); I was convin...


Makefile or not?

Started by pozz in comp.arch.embedded1 week ago 44 replies

What do you really use for embedded projects? Do you use "standard" makefile or do you rely on IDE functionalities? Nowadays every MCU...

What do you really use for embedded projects? Do you use "standard" makefile or do you rely on IDE functionalities? Nowadays every MCU manufacturers give IDE, mostly for free, usually based on Eclipse (Atmel Studio and Microchip are probably the most important exception). Anyway most of them use arm gcc as the compiler. I usually try to compile the same project for the embedded target...


CfP Ada-Europe 24th Conf. on Reliable Software Technologies

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

----------------------------------------------------------------------- Call for Papers Ada-Europe...

----------------------------------------------------------------------- Call for Papers Ada-Europe 24th International Conference on Reliable Software Technologies (Ada-Europe 2019) 10-14 June 2019, Warsaw, Poland http://www.ada-europe.org/conference2019 Organized by EDC and...


Crystal Load Capacitance

Started by steve in comp.arch.embedded4 weeks ago 19 replies

I am using a Atmel4SD32C processor. For the main clock crystal Atmel specifiey the following requirements: CLEXT Maximum External Capacitor on...

I am using a Atmel4SD32C processor. For the main clock crystal Atmel specifiey the following requirements: CLEXT Maximum External Capacitor on XIN and XOUT 17 pF Allowed Crystal Capacitance Load From crystal specification 12.5 – 17.5 pF CLOAD Internal Equivalent Load Capacitance Integrated load capacitance (XIN and XOUT in series) 7.5min 9.5typical 10.5 pFmax Calculation f


RS485 over optical fiber cable

Started by pozz in comp.arch.embedded1 month ago 32 replies

I'd like to replace an electrical cable with a fiber cable, mainly for electromagnetic noise immunity and long distance (I need to reach...

I'd like to replace an electrical cable with a fiber cable, mainly for electromagnetic noise immunity and long distance (I need to reach 500m). The bitrate will be very low: 9600bps is ok. I need to keep the cost low as possible. I never used fiber cables before. In similar applications I used RS485 transceivers connected to the UART peripheral of an MCU. I think I need a fiber optic c...


Problem with Analog Output for BL4S200 using the test program from Digi.

Started by "rab...@weldcontrol.com [rabbit-semi]" in Rabbit-Semi1 month ago 1 reply

I'm trying to test the analog output on new board BL4S200. The jumpers on the board are by default as described in the sample program. The...

I'm trying to test the analog output on new board BL4S200. The jumpers on the board are by default as described in the sample program. The board is powered with 12V DC (J5-pins 1,3). The only connections are the 2 connectors on J5 and J12. I bought the connectors with the 1 ft. cables pre made from Mouser. The Analog Inputs work fine ( used sample prg: adc_rd_se_unipolar.c ). ...


ODB++ PDB CAD Data

Started by Anonymous in comp.arch.embedded1 month ago 2 replies

I am having an old board made and am being asked for ODB++ format CAD data files. It seems this is to facilitate the creation of the various...

I am having an old board made and am being asked for ODB++ format CAD data files. It seems this is to facilitate the creation of the various machine control files. I'm told it can also support locating traces to assist in debugging. My CAD package doesn't support this. Would it be a hard thing for the developers to add? https://www.odb-sa.com/wp-content/uploads/odb_spec_user-


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