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consequences of forget to set BOD
I just gained some experience, I would like to share here.   After I finished the design and test tens of PCB samples of new product (RDM-DMX LED pixel bar...
Friday, 13 September 2019 - 14:39
Full Swing Crystal issue
I m trying full-swing feature of ATmega328P in hope for increase robustness against possible noises. . I have no problem with low-power mode over years of production, this is my...
Friday, 23 November 2018 - 17:13
atprogram command for ATtiny816 fuse bits
I am trying to program ATtiny816 using Atmel-ICE from command line   I can erase/write flash/lock bits using command line sucessfully :  atprogram -t atmelice -i UPDI -d...
Wednesday, 25 April 2018 - 08:13
ATmega328P decoupling Vcc using Ferrite Bead
I tried decoupling Vcc as recommended in AN2519 : Figure 2-2    my PCB is as recommended in appnote, MCU is decoupled from Vcc using ferrite bead and 100nF cap close to...
Wednesday, 14 February 2018 - 15:03
ATTiny816 UART 250kbps accuracy
My old circuits use ATmega88 , 16MHz crystall, UART 250kbps, 8bit , 2 stop, no parity, both RX and TX   ATtiny816 has inetrnal 16Mhz and 20MHz RC factory calibrated with...
Friday, 5 January 2018 - 15:03
ATtiny816 UART example
hi  I am trying to use UART of ATtiny816 datasheet is lack of examples,   could anyone show some reference for me ?   thanks
Wednesday, 3 January 2018 - 15:03
EEPROM corrupt or damge in BOD ?
hi    I know this is discussed several times before, I have read most of very useful old threads, and did my project as below:   my circuit is 4.5V BODLEVEL set to...
Wednesday, 27 December 2017 - 09:09
ATmega328p UART framing error does not occur!
There is a protocole over serial port as following: 1. no signal (idle) is High (+5V). 2. reset signal is a 60 us Low (0v) pulse. 3. data signal is : 250 kbps/8 bits/2 stop/no...
Saturday, 24 June 2017 - 14:32