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Ice Cream Sandwich

An ISP programmer for AVR microcontrollers.

FEATURES
- Faster than one which uses a legacy serial port.
- Simple circuit.
- Built-in FTDI's official driver.
- Built-in simple filer.
- Logging UART from MCU via MOSI pin.

LOGGING UART
- Logging via MOSI, not MISO. Non-inverting UART.
- New line is CR or LF or CR+LF.
- Only ASCII.
- In this mode, ADBUS0(TXD, SCK) and ADBUS2(RTS#, MISO) output H.
- SCK/MISO are not able to use as GPIO. Please set their DDR to input.

USB-OTG
- Please check that your phone supports USB-OTG.
- The phone catalogue which Google Play has may be wrong.

NOTES
- To make an adapter is required. Its schematic is in this app.
- The cost of parts is about US$20.
- The PDI/TPI are not supported, which are next generation interface.
- Only Intel HEX is supported.
- If your phone can not resume USB, you had better to disable sleep.


AVR programmer

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