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Discussion Title Created date
Hardware to read a Dataflash (AT45DB) by using a PC
I've heard about this but can't remember the name or where to find it. Can someone help me in finding a hardware that can be used to read the data stored in the flash? I've heard...
Thu. Dec 21, 2017 - 10:02 AM
AT CSQ returns CME error 604. Quite strange!
I'm using an SIMCOM, SIM800. This module was working perfectly fine, but suddenly it stopped posting and while debugging I found out that AT+CSQ was returning "+CME ERROR:604...
Thu. Jun 1, 2017 - 09:58 AM
SD card doesn't return its CardInfo.
I'm using Chan's FAT-FS. And I use an SD card by a German manufacturer "NuDisc". This card works perfectly fine in my Linux distro and works fine with f_mount, f_read,...
Fri. May 12, 2017 - 09:35 AM
SD card does not respond to CMD0 (RESET)
A device I had been testing for over two months suddenly started giving FR_DISK_ERR (I'm using Elm Chan's FAT-FS) [Link]. When I tried debugging, the command (CMD0) which must be...
Wed. May 3, 2017 - 06:35 PM
Will an OFF state AVR power up during SPI transaction
I have an AtMega328p which will be in OFF state (VCC = 0 V) and another uC which will be connected to it through SPI. The second uC can initiate an SPI transaction - call chip...
Fri. Apr 21, 2017 - 10:16 AM
Porting to DataFlash from SD. Pros and Cons.
Hi, I currently have a project, in which I'm using a 2 GB SD card with elm-chan's FAT FS.  But as Flash ICs like AT45DB and SST26VF are cheaper I thought I would change...
Tue. Apr 18, 2017 - 12:32 PM
Receiving delayed OBD2 PID response. There is an offset.
Hi, So I made an OBD2 reader and it works smoothly for both  CAN 11/500 and CAN 29/500. But not always, when I was testing a Honda Accord my CAN detection logic failed (CAN...
Mon. Apr 3, 2017 - 09:43 AM
Usbasp programmer issue
My friend wants to upload a arduino bootloader into a new atmega328, I said it can be done using a usbasp, and tools--burn bootloader. Buy It had sync error. So I just tried it...
Sat. Apr 16, 2016 - 05:53 AM
ModBus in arduino
Hi, Anyone know how to implement Modbus in arduino uno? Which website should i visit, to learn this protocol. I have a Samkoon 3.5.
Fri. Sep 4, 2015 - 07:11 PM
Help me decide on the design
Hi, I'm a student, participating in Formula Student Germany(FSG), with my team Ojas. https://www.facebook.com/OjasRacing Since we are rookies, I have a few doubts. We are...
Sun. Aug 30, 2015 - 02:20 PM