Program a Microcontroller

Comments

• JonnyMac Posts: 8,918

  2021-09-28 03:58 edited 2021-09-28 14:34

  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 Posts: 18,069

  2021-09-28 08:18 edited 2021-09-28 08:19

  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 Posts: 5

  2021-09-28 17:51

  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 Posts: 18,069

  2021-09-28 20:12

  Yes, that’s the thread.
  BTW The newest ATTiny chips have a single programming pin using a microchip protocol - this is different.
• nickhemp Posts: 5

  2021-09-29 04:54

  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 Posts: 5

  2021-09-29 17:51 edited 2021-09-29 18:22

  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 Posts: 18,069

  2021-09-30 01:09

  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 Posts: 5

  2021-10-06 06:31

  Very helpful info. Sees a like getting a Arduino is the easiest way to go.
• JonnyMac Posts: 8,918

  2021-10-06 17:45 edited 2021-10-06 17:46

  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.