| Lowebrau | Posted: 31 Jan 2019, 10:01 PM |
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 Member Posts: 2 Joined: 31-January 19 |
Hello, I'm undertaking the MIDI for Korg Monotron project. As I'm waiting for the parts to come in the mail, I was reading the pages on this project. I'm wondering if all the code that needs to be put on the ATtiny85 is what's on the project page: ldi r16, (1<<PLLE|1<<PCKE) out PLLCSR,r16 ldi r16, (1<<PWM1A|1<<COM1A1|1<<CS10) out TCCR1,r16 ldi r16, (1<<PWM1B|1<<COM1B1) out GTCCR,r16 ldi r16,255 out OCR1C,r16 It wasn't entirely clear to me Thanks! ------------- |
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| mit | Posted: 1 Feb 2019, 10:02 PM |
 yeah whatever Admin Posts: 304 Joined: 4-May 16 |
Hi, there's more to it than that. The full source code is on github: https://github.com/mitxela/MidiMonotron I forgot to link to that on the project page (I will update that when I next get a chance) Good Luck! ------------- |
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| Lowebrau | Posted: 9 Feb 2019, 08:02 PM |
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Member Posts: 2 Joined: 31-January 19 |
Ok, thank you for that! ------------- |
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| Carlos_Luna | Posted: 16 Mar 2020, 08:03 PM |
 Member Posts: 1 Joined: 16-March 20 |
Hi there, thanks for sharing your project info. Do you know if I can do the same for a Monotron Delay? I didn't find the "LFO reset" in the schematic. It should be a way, just wondering. Thanks for the great work! Greetings from Mexico ------------- |
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| mit | Posted: 17 Mar 2020, 12:03 AM |
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yeah whatever Admin Posts: 304 Joined: 4-May 16 |
I don't own a monotron delay but it should work. It took a fair bit of experimenting to find the LFO reset on the monotron, it's not clearly labelled like the other signals, but it is labelled on the (non-delay) schematic right in the middle. ------------- |
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| epsteinbarr | Posted: 9 Nov 2020, 11:11 AM |
 Member Posts: 1 Joined: 9-November 20 |
Hello, thanks for sharing your project info. I'm trying to do that on an Attiny2313 (programming it with an arduino UNO board), but i can't figure how to adapt your project to it. There are some hints, or links that can help me? Thanks in advance ------------- |
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| mit | Posted: 9 Nov 2020, 04:11 PM |
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yeah whatever Admin Posts: 304 Joined: 4-May 16 |
The ATtiny2313 is quite a different chip, so you'll basically have to start over from scratch. It has a hardware UART, so that makes things easier (most of the ATtiny85 code is about bitbanging the uart decode). The timers are a lot less flexible so I'm not sure if you'll be able to generate the voltages correctly. ------------- |
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