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Summary of change:
''Aim'' * Standalong logger with FAT support, logging to a CSV file, that can support a variety of ECUs. ''Requirements'' * 14V supply * 3.3V internally * SD/MMC socket * DB9 connector * Button for turning logging on and off, and setting the mode * LCD for status indication and set-up * Real time clock for logging time stamps * 3.3V ECU with minimum 32KB Flash, 2KB SRAM * 3.3V RS-232 with 1 channel ''Specifications'' * Atmel ATmega64 64/LQPF running at 8MHz * Maxim MAX3227E 16/SSOP * AVX Series 5638 SD card connector * ... ''Operation'' * Unit is activated by ignition * Select ECU by pressing and holding button ** Supported ECU is displayed on LCD ** ECU list scrolls while button is held ** ECU list stops and current ECU flashes when button is released ** ECU is selected when button is pressed again ** If not button is pressed within 3 seconds, the original ECU is retained * Start and stop logging with a button press ** Logging status is displayed on LCD ** A new CSV file is created each time logging is started ** First field of logs has a timestamp
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