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/**
**************************************************************************
* @file eeprom/readme.txt
* @brief readme
**************************************************************************
*/
this demo is based on the at-start board and AT32-Comm-EV, in this demo, use hardware i2c2
write or read data based on the eeprom device. if the communication is
successful, led3 will turn on, if the communication fails, led2 will keep flashing.
attention:
1. i2c bus must pull-up
2. press the slave button first, then press the master button to start communication.
pin used:
1. scl --- pb10
2. sda --- pb11