Burn bootloader on RPICT Atmega with Arduino UNO
This will guide through the steps to flash the firmware on the attiny84 microcontroller found on some RPICT series.
Required equipment
- 1 Arduino UNO
- 6 Jumper wires
NanoProg is a more appropriate tool for this operation.
Connections
The RPICT board has a 6 pin ISP port as shown below.
Connect the wires between the Arduino UNO and the RPICT board as follow:
| Arduino | RPICT |
|---|---|
| 10 | RESET |
| Gnd | Gnd |
| 13 | SCK |
| 11 | MOSI |
| 12 | MISO |
| 5V | VCC |
ISP Sketch
First of all we must flash a sketch in the Arduino UNO to convert it into a programmer for the RPICT card.
Open the Arduino IDE and open the file Files | Examples | ArduinoISP
Make sure that Tools | Board: Arduino UNO is selected.
Upload this sketch to the Arduino uno. Click the right arrow icon in the Arduino IDE or do Sketch | Upload.
Burn the bootloader
Download the sketch that you wish to upload. Open it with the Arduino IDE.
Select Tools | Board: Arduino Uno
Select Tools | Programmer: Arduino as ISP
Then select Tools | Burn Bootloader
Flash the firmware
We recommend to flash the firmware from the Raspberrypi.
Connect the RPICT card on the Raspberrypi and use the lcl-upload-sketch.sh tool to upload the correct firmware.