Questions tagged [atmega328pb]
7 questions
16
votes
3 answers
Puff of smoke in air. 3 different PCBs. PCB has ghosts?
Yes, that is a haiku. (EDIT: fixed it... it is now actually a Haiku)
No I'm not smiling.
I'm doing some standard testing; seeing what happens when one of the two power rails gets shorted to GND on a PCB that I designed. We're talking about a 12 V…
macdonaldtomw
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2
votes
1 answer
Noise on I²C when bit-banging but not with built-in I²C (ATmega328PB)
I'm working on bit-banged I²C for the ATmega328PB. I've been seeing a lot of noise (ringing and cross-talk) on the lines but thought it was just my test probes, etc. However, when using the MCU's native I²C the noise disappears. Can anyone…
Alex Hajnal
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2
votes
1 answer
Bricked ATMEGA328PB by setting low fuse to 0xF5 - How to recover?
While programming an ATMEGA328PB via ISP, I wanted to set the efuse to 0xF5.
By accident, I didn't write the efuse but the lfuse instead.
Since then, I cannot communicate with the chip via ISP anymore.
I am not entirely sure which mode the IC is in…
Zulakis
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- 3
0
votes
2 answers
ATmega328p TQFP basic PCB
Is there an error in the basic schematic and PCB drawing of the Arduino?
571E
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0
votes
0 answers
Generating PWM at pin PD5 of ATmega328P
I am beginner to ATmega328P programming for PWM generation.
I am trying to generate a PWM wave at PD5 pin the datasheet says PD5(OC0B/T1/PCINT21).
When I generate the PWM with help of timer0 overflow interrupt it works fine, however when I try to…
Pradeepan
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- 1
0
votes
1 answer
Atmega328pb microncontroller hangs
I've been working on a project with Atmega328PB microcontroller using both the UARTs for communication. The controller runs fine for a long time but all of a sudden it does not respond at all. It happened two times in a span of one week. The weird…
Sai Prasad
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0
votes
2 answers
atmega328pb mcu gets bricked after uploading bootloader
i have a strange problem, maybe this post will be long, but i try to give all the details:
i’ve designed a pcb with smd components, around the atmega328pb mcu. it uses an external 16mhz clock and has all the needed decoupling caps, voltage…
Wanek T
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