Ben's notes

2019-10-12 - Using a Raspberry Pi as AVR programmer.

• Raspberry Pi (I used a 3 model B+ board from 2017).
• Raspbian (based on Debian Buster)
• Built and working QCX tranceiver. Website: http://qrp-labs.com/qcx.html
• Jumper wires.

• Enable spi

  dtparam=spi=on

• Install avrdude:

  sudo apt install avrdude

============
Raspberry Pi
============
BCM 9  (MISO)
BCM 10 (MOSI)
BCM 11 (SCLK)
BCM 25 (RESET)
Ground 


============
QCX
============

(left board edge)
      | V -
      | V +
      |
  GND | o o RESET
 MOSI | o o SCK
   5V | o o MISO

• Check connection:

  sudo avrdude -p atmega328 -c linuxspi -P /dev/spidev0.0 -v -b19200

• Program latest firmware:

  sudo avrdude -p atmega328 -c linuxspi -P /dev/spidev0.0 -v -b19200 -U flash:w:T1.00g.hex