Question
An EEPROM has 128 1 kB blocks. Each block is rated at 100,000 write cycles, and the whole block must be erased and written. We
An EEPROM has 128 1 kB blocks. Each block is rated at 100,000 write cycles, and the whole block must be erased and written. We want to use the flash to record an event from a data logger application. We are supposed to store the last 64 events to the flash. Each event record is to be stored in its own block and includes a unique event number, and the event numbers must be persistent even if the microcontroller reboots. Describe (in English) a strategy for how you would maximize the life-time of the flash and state how exactly many event cycles can be written to the flash. Hint: we should be able to get more than 12 million total write cycles for the flash chip. Hint: reading the entire flash can be done in a few milliseconds.
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