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Forum Post: C6678's I2C bus always busy

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Hi,

On my C6678 board, I use one EEPROM 24AA1025 instead of M24M01 which is used in TI's C6678EVM board. Then ,when I use the platform_test project provided by the MCSDK to test the eeprom, the result is "Read Fail",because the ICSTR register's BB field is always 1,that indicated the bus is busy. Why? Is the EEPROM chip type matters? 

Still, the ICSTR can't be set manually, right? because, when the CCS execute the following words, the value in ICSTR didn't change at all , while the value in ICMDR changed. I watch them through the memory browser.

Regards,

Philly.


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