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Cortex-Mx MCUs with SWD access locked

I know it's a very specific question, so I don't have many hopes to find a solution here, but I already tried everythin...
25 comments posted 4yrs
posted by pozzugno
25 comments posted 4yrs posted by pozzugno

4-bit MCUs

Wow! This group seems to have all but died. It used to be very vibrant. I'm trying to determine how prevalent 4-bit MCU...
10 comments posted 4yrs
posted by gnuarm.deletethisbit
10 comments posted 4yrs posted by gnuarm.deletethisbit

4 Bit MCUs, Still Alive and Kicking?

I'm not sure which group it was in, but someone who designs toys talked abo ut the extremes they would go to for cost r...
28 comments posted 4yrs
posted by gnuarm.deletethisbit
28 comments posted 4yrs posted by gnuarm.deletethisbit

OT: plug and pray webcam on windows xp

Moments ago I posted this only to SED, then remembered the chances someone could help here are perhaps higher (unless t...
2 comments posted 4yrs
posted by dp
2 comments posted 4yrs posted by dp

eMMC CSD Register ECC field

Anyone here knowledgeable about eMMC memory? I have a high reliability application where there is concern about memory...
1 comments posted 4yrs
posted by buzz_mccool
1 comments posted 4yrs posted by buzz_mccool

MCU reset and internal SRAM starting values

I often use with success a simple way to implement a bootloader: #define START_MAGIC 0xAA55AA55 uint32_t start_applicat...
2 comments posted 4yrs
posted by pozzugno
2 comments posted 4yrs posted by pozzugno

USART interrupt on transmission

The UART/USART peripheral usually available in many microcontrollers triggers a few interrupts. Two of them are DRE (da...
4 comments posted 4yrs
posted by pozzugno
4 comments posted 4yrs posted by pozzugno

gcc: NOLOAD and .noinit

I usually don't touch linker script of my development system, sincerely I can't read every details of a linker script,...
7 comments posted 4yrs
posted by pozzugno
7 comments posted 4yrs posted by pozzugno

gcc ld and bss sections on SDRAM

My platform is LPC546xx, Cortex-M4 by NXP, and the build environment is based on GCC ARM toolchain (MCUXpresso IDE). Ho...
4 comments posted 4yrs
posted by pozzugno
4 comments posted 4yrs posted by pozzugno

ds18B20

I am using several ds18b20 for projects, but every now an then some give What is causing this, is there a way to preven...
1 comments posted 4yrs
posted by pasIci
1 comments posted 4yrs posted by pasIci

gerber outline

Ospark.com's quote section took a gerber .zip file (generated by Eagle version 3.5) and said it couldn't find the board...
2 comments posted 4yrs
posted by ht
2 comments posted 4yrs posted by ht

WiFi module

I need to develop a custom board with WiFi connectivity and a UART(RS485). The UART will be connected to a proprietary...
10 comments posted 4yrs
posted by pozzugno
10 comments posted 4yrs posted by pozzugno

Recommendation: Cheap (free!) IoT cloud service

I'm setting up a household water-tank level sensor that I'd like to be able to monitor from (practically) anywhere to a...
11 comments posted 4yrs
posted by chris.hoffmann
11 comments posted 4yrs posted by chris.hoffmann

Unit testing frameworks for embedded c

Until now, I was not be able to arrange a full unit testing for any of my projects, but I want to invest some time to l...
2 comments posted 4yrs
posted by pozzugno
2 comments posted 4yrs posted by pozzugno