All Questions
142
questions
0
votes
4
answers
50
views
What does it mean the MCU has 1 ADC and 10 ADC channels?
I got this AVR Microchip MCU ATtiny 204 chip. Now what I can't get, what do they mean in the datasheet it has 1 ADC and 10 channels ADC?
The datasheet:https://datasheet.octopart.com/ATTINY204-SSF-...
0
votes
1
answer
81
views
Analog switch for controlling LED
I need help/suggestions for the implementation of my schematic:
In the schematic image pasted below, particularly look only at the charging IC, boost converter, analog switch, and ATTiny 1616 ...
- 33
0
votes
0
answers
27
views
Which ATtiny TWI parameter provides more robust operation?
I'm using an ATtiny3226 as an I2C client (slave) interface in a robot, to get commands from the main controller (single master) using I2C on a shielded cable.
There are brushless and servo motors ...
- 2,017
0
votes
1
answer
82
views
ATTiny85 won't reprogram
I am using a tiny AVR programmer to program code specifically this one, https://www.amazon.com/dp/B00B6KNJRY?psc=1&ref=ppx_yo2ov_dt_b_product_details , I can successfully upload code onto a blank ...
- 13
1
vote
1
answer
156
views
avr-gcc optimization deleting register writes on ATTiny402
I'm using avr-gcc (12.1.0, built with this script: https://github.com/ZakKemble/avr-gcc-build) to compile for the ATtiny402 and encountering problems with code optimization. Specifically, the compiler ...
- 13
0
votes
1
answer
150
views
Proteus ATTiny85/ATMega328P CLKOUT not sending any signal at all - Why?
I set all the fuse bits correctly according to the datasheet, It seems like I just need to set the CLKOUT bits correctly, and I should get a signal of some sort. I can still send signals to the GPIO ...
- 1
1
vote
2
answers
183
views
ADC reading on ATtiny13, without dedicated clock?
I am in a design phase of a small circuit which is intended to measure an external voltage, with an ATtiny13.
This AVR has a dedicated ADC hardware, which is suitable for my needs (need to detect ...
- 969
0
votes
1
answer
299
views
Faster Timer0 overflow than 2 ms on Attiny85
I'm trying to get a Timer0 overflow with an overflow every 500us, but can't find a solution to get it so low.
I'm running the Attiny85 on its internal 1 MHz clock, so I know it is not gonna be the ...
- 309
1
vote
2
answers
364
views
ATTiny204 accurate delay with correct fuses and F_CPU
So I worked with an ATTiny for the first time today and I was quite different from my regular Arduino / ESP8266 programming.
When testing the Blink script I noticed that the delays weren't correct at ...
- 47
0
votes
1
answer
136
views
AVR GDB Inconsistencies
I'm trying to debug a program running on an ATtiny84A, and I am having trouble understanding either how to use it, or interpreting its output, or both. For testing purposes, I created a simple program ...
- 245
0
votes
2
answers
314
views
AVR "OUT" function. addressing port without constant
I am currently writing some assembly code that needs to address different I/O ports at certain times in my code. For example, at one point I may want to address PORTD4, and at another point I may want ...
- 15
0
votes
1
answer
114
views
Unnexpected Behaviour From Software UART On ATtiny84A AVR
I am trying to implement a software UART for the ATtiny84A, as it does not come with a UART out of the box.
The following is an example of the UART TX:
...
- 245
0
votes
2
answers
140
views
`sizeof` Function Is not Working as Expected With AVR Microcontroller [closed]
Observe the following example code (Microcontroller used: ATtiny84A):
...
- 245
0
votes
1
answer
72
views
Problem or misunderstand of ADATE bit on ATTiny45
I have 2 buttons connected to pulled-down ADC input.
I want to trigger ISR(SIG_ADC) when ADC finishes conversion - this is working.
If I start ADC using ...
- 209
0
votes
1
answer
647
views
How do I invoke pymcuprog?
I have successfully created an ATtiny406 binary using avr-gcc in Linux, and I can program it to the device via Atmel-ICE under Atmel Studio in Windows, and it ...
- 431