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No, you can't store an analog value as-is on a digital storage medium like an eeprom or an SD card. You could do an analog-to-digital conversion (using an appropriate chip) to convert your analog to …

The M series ARM CPU's have a small instruction set, often no floating point unit, no memory management, no cache. They are optimized for low cost rather than high performance. They are generally comb …

A function int f(int x){ .. } Get the address of a function (and store it in a variable) int (*fp)(int) = f; Call a function at a specified address int x = (*fp)( 12 );

Everything has tolerances, so the brown out reset level must be set somewhat above the minimum level at which the chip is guaranteed to function properly. Hence the brown out might kick in well befor …

Run code on the RaPi without OS: No problem. David Welch has done the grunt work, check his gitub. Basically, you can take the standard startup files and replace the kernel.img with the file you want …

Any language can be suitable for an embedded system. Embedded just means: part of a larger apparatus, as opposed to a free-to-use computer. The question has more relevance when asked for a (hard-)rea …

I am looking for C++ abstractions for hardware I/O points or pins. Things like in_pin, out_pin, inout_pin, maybe open_collector_pin, etc. I surely can come up with such a set of abstractions myself, …

uC = a stand-alone processing chip: CPU, RAM, ROM, some peripherals. DSP = processor chip (can be a separate CPU, nowadays mostly a uC) that is optimized for signal processing. Often has fast MAC (m …

What you are trying to do is tricky, but very educational (if you are prepared to spend a lot of effort). First, you must realise that this kind of PC-only (as opposed to PC+SP) task switching (which …

The correct question is not "C or C++" (with a one-bit binary answer) but "which C++ features to add to my C (and which C features to discard as a consequence)" (which has a whole lot of bits, which w …

You have two problems 1) The output you see (ets Jan 8 2013,rst cause:2, boot mode:(3,6)) is printed by the startup (bootloader) code. After that, the communication continues on a different baudrate …

A possible problem is that some PICs need a power-cycle to get into programming mode. The 12F675 in particular needs this when the configuration word in your application configures the MCLR pin as GPI …

The microcontroller can - when the pin is configured as output - pull much much harder. Think of a gentle breeze flapping a piece of laundry in one direction. …

. ========================================= Now some homework as a preparation for the next interview: You have a USB powered 5V gadet, that has a microcontroller and an LM35 temperature sensor. …

This is more an opinion/comment than an answer. You don't want and shouldn't be programming in C. C++, when used in the right way, is far superior. (OK, I have to admit, when used in the wrong way it …