ATAVRAUTO102 User Guide
3-7
7720A–AVR–06/07
3.2.2
Programming with
AVR ISP via SPI
Both the Flash and EEPROM memory arrays can be programmed using the serial SPI
bus while RESET is pulled to GND. The serial interface consists of pins SCK, MOSI
(input) and MISO (output). After RESET is set low, the Programming Enable instruction
needs to be executed first before program/erase operations can be executed. Note that
throughout the description about Serial downloading, MOSI and MISO are used to
describe the serial data in and serial data out respectively. For AT90CAN128 these pins
are mapped to PDI (PE0) and PDO (PE1).
To program the device using AVR ISP programmer, connect the AVR ISP to the adaptor
(ATAVRAUTO900) and connect the adaptor to the connector of the ATAVRAUTO102.
Programming the ATAVRAUTO102 using ATAVRAUTO 900
3.2.3
Programming with
AVR JTAGICE mkII
The AT90CAN128 can be programmed using specific JTAG link: 3-wire debug-wire
interface. To use the AVR JTAGICE mkII with an ATAVRAUTO100 an optional adaptor
should be used. Then the JTAG probe can be connected to the ATAVRAUTO100 as
shown in the following figure.
JTAGICE mkII probe connection through JTAG interface.
