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FatFs problem saving gps data
I'm still struggling with my gps logger. I want to save the gps data from a NEO-6M and save it to an SD card as a .gpx. I can save the content without error: <trkpt lat="...
Monday, 11 November 2019 - 10:28
Atmega328p vs Atmega32
I migrated my Atmega328p projet to an Atmega32A device, becuause it has a JTAG interface, and easier to debug problems. With the Mega328p I was handling an SD card with FatFS...
Sunday, 20 October 2019 - 17:09
Reset loop GPS parser
I faced a strange phenomenon while tried to run a gps parser. Briefly the hardwer: NEO-6M GPS module, Atmega328p, LCD1602. While the program is running, the LCD shows the time...
Thursday, 10 October 2019 - 07:14
Set_Input(InputValue) AVR221 function
Hy guys! I'm working on a AVR221 document based PID controller. I'm trying to tune the P, I, D parameter with no luck. If I set I and D term to zero (for Ziegler-Nichols tuning),...
Friday, 13 January 2017 - 16:03
Fatfs Atmega328p problem while working with string
I would like to build a gps tracker, which sends datas to UART, and after I process this, I save the interesting datas to sdcard in gpx format. I debug the code in UART. I noticed...
Monday, 17 October 2016 - 18:14
Atmega328p FatFS SDcard
Hy! I am a bit stucked using SDcard. I read (i think) all the posts and tutorial in avrfreaks about this topic, and searched over the internet for this, but I still confused....
Thursday, 6 October 2016 - 17:02
Bootloader
Hy guys! I need a bit help in bootloader topic. I'm using a Mega328P. My code contains a char variable, e.g.:char letter='c'. I want to refresh this variable throug UART...
Thursday, 13 August 2015 - 11:38
AVR with SCR
Hy guys! I'd like to switch on-off a thyristor (BT151 or TIC106) with an Atmega328p to fire a film capacitor and I want to choose the proper value of the resistor between the I/O...
Tuesday, 21 July 2015 - 07:31
AVR UART programming
Hy guys! I have a table in my program (volatile uint16_t table[261]={12345,23456,3456,3234,etc.}). I'd like to refresh the table with uart communication. I managed to do that but...
Monday, 13 July 2015 - 21:47
External Interrupt
Hy all, I use external interrupt to measure the frequency of an astable multivibrator (with ne555). Now I'd like to reach, that one of the output of the AVR shows the square wave...
Tuesday, 30 July 2013 - 07:00