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USB bootloader for Atmel AVR MCUs
I already read about FLIP software created by Atmel, but it seems too complicated. The thing I don't like is you need to install a new USB driver (included in FLIP software) only...
Tuesday, 1 March 2016 - 16:18
Please, suggest an AVR ISP stand-alone programmer
I need to speed up the programming process of ATmega32A/644A/328 boards. They provide SPI connector for programming. Actually I'm using JTAGICE3 (by Atmel) but I need a full PC. I...
Thursday, 25 February 2016 - 16:10
ATA8215 for receiving proprietary 433MHz message
I need to receive a 56-bits messages from 433MHz transmitters. It uses OOK with Manchester bit encoding. One message is composed of: 4ms carrier ON 100usec carrier OFF Bit 1 (...
Friday, 18 December 2015 - 11:01
BOD 4.3V but VCC=3.3V: what happens?
What happens if I erroneously write fuses enabling brown-out to 4.3V and the real power supply voltage is 3.3V? ATtiny4313. Is it possible to use ISP to write correct fuses (brown...
Wednesday, 16 December 2015 - 13:40
volatile access is compiled with Z-register: why?
In one ISR a variable x is changed. In the background loop, the variable x is tested against another variable y.   If I wrote: static unsigned char x, y; <in the ISR...
Wednesday, 11 November 2015 - 15:06
ATtiny4313: how to generate two opposite 50% duty-cycle square waves
I need to generate two waveform signals. They are simple square waves with a 50% duty-cycle, but they are opposite (second is the logical NOT of the first).   I'm able to...
Monday, 26 October 2015 - 22:58
How to install an old Atmel ARM GCC toolchain
I have an Atmel Studio project that uses default Atmel ARM GCC toolchain installed with Atmel Studio. Unfortunately now I re-installed Atmel Studio (the new 6.2sp2 version) and I...
Wednesday, 15 July 2015 - 16:12
Reset pin circuit: how to avoid spurious reset when touching the board with fingers
I noticed the MCU (ATtiny4313) resets itself when I touch the board with my fingers, near the ISP connector or near the chip. I have an external 10k resistor, but I don't have a...
Thursday, 16 April 2015 - 08:45
Small modifications in source code, big differences in the final result
I know this question is somewhat vague, but I'm stuck with this problem for all the day and I don't know what is happening.   I created a full program that works well on...
Monday, 16 March 2015 - 15:14
ATtiny13A and JTAGICE3: Atmel Studio hangs when stopping debugWire session
No problem to start and use debugWire sessions with Atmel Studio 6.2, JTAGICE3 and ATtiny13A. I can place breakpoints, stop, reset and so on.   When I stop the debug session...
Tuesday, 28 October 2014 - 08:58
How to correctly compare two ELF files
I usually use ELF output files for production. In ELF files I put flash, eeprom and fuses content.   Many times I need to compare two ELF files, just to be sure a ELF file...
Thursday, 18 September 2014 - 07:53
ATmega32A: JTAG programming pulling low the reset line
JTAG fuse is enabled and the firmware, during startup, disables JTAG module (writing JTD bit in MCUCSR register), because I share some JTAG lines with other functionalities on...
Thursday, 4 September 2014 - 14:31

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