Program a Microcontroller

nickhemp

Question:

• Is it possible to program a 8-bit microcontroller with a quick start board?

Goal:

• Use AVRdude to interface between the QuickStart board and computer to load code onto a 8-bit microcontroller (ATTINY85V-10PU)

Extra info:

• I am following a tutorial on instructables. If more info to my question is here. Step 3 and 4 are relevant to this question. https://www.instructables.com/DIY-TV-B-Gone-SHP-And-Save-45/

JonnyMac

There are many ways to get a program into an ATTiny -- I've never seen one that involve that Propeller. I'm betting you have a standard Arduino in you stock -- you can use that to provide a programming interface.

Cluso99

I programmed an AVR ATTiny85? with a P1 years ago. Perhaps a thread search might find it.
IIRC it wasn’t difficult.
Sorry I don’t have a link.

BTW you will need something else if you need to restore the fuses.

nickhemp

I haven’t done anything like this before. It’s all brand new to me.

Cluso99 I believe I found your post https://forums.parallax.com/discussion/134719/programming-the-attiny84-with-the-propeller-working

Cluso99

Yes, that’s the thread.
BTW The newest ATTiny chips have a single programming pin using a microchip protocol - this is different.

nickhemp

I’m am going to take a deep dive into this. I’ve never done something like this before. When I come out of it I’ll post my results here.

nickhemp

I found this image. Where a Arduino board is used to program the ATtiny. (1) {not sure why they used a capacitor in this diagram. I’m fairly sure it’s not necessary}

Document showing the Propeller QuickStart accessory sockets. (2)

Following the same layout from the first picture I came up with this. (3)

Do you think this would work?

Propeller Document
https://www.alliedelec.com/m/d/716e826b58934381a82e39c92d2279c2.pdf

Cluso99

No!
P40 is 6-9V unregulated - you will kill your AVR as it requires 5V max.
I think you can program it using 3V3 but you need to check the AVR manual.

Any P1 I/O pins should work but best if you steer clear of P28-31 as they are used for serial and I2C EEPROM booting. I am not sure if the QuickStart uses other pins for anything.

nickhemp

Very helpful info. Sees a like getting a Arduino is the easiest way to go.

JonnyMac

I don't do a lot with ATTinys, but when I've needed them for a very small project I used programmer from Sparkfun. If the device was on a board (SMD), I used a cable and a chip-click to make the connection.