AVR ISP By Hand: Demo Setup and ISP Programming Enable Instruction

Doing the ISP programming by hand is a little nuts but it's interesting that you can do it at all. Seeing how it works can inform your understanding of how your wire in a programmer and the meaning of diagnostic messages from tools such as AVRDUDE.

Series playlist:
   • AVR ISP by hand  

00:00 Intro
00:38 ISP's relation High Voltage modes
01:35 Cautions for experimenting
02:22 Demonstrating with ATtiny13A, however wider applicability
02:56 Model / Diagram
03:14 Board / Power distribution and Chip
03:53 Board / RESET control
04:54 Board / MOSI control
05:52 Board / SCK control
07:40 Board / MISO indication
08:10 Many ways to do this
09:05 ISP instruction set
11:03 Factor default running state
11:31 Entering RESET with intention to program
13:06 General form of entering ISP instructions
13:52 The MISO drive state
15:13 Programming enable: Waking up the chip with the first half
16:48 Programming enable: Don't-care bits and echoing back
18:46 The need to re-enter programming mode after reset
19:22 Future videos