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I2C Bus

lorenzo ballarin

Hi,
I'm trying to comunicate with an external EEPROM like PCF8582 with the uC LPC1115, but I've to understand a thing: When I use the function I2CEngine(), how can I know when the transmission has finished and if all goes well?
Thanks.

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  • 0 in reply to lorenzo ballarin

    Sorry it goes on state 0x20 and it's correct.

    LPC_I2C->CONSET = I2CONSET_STO;      /* Set Stop flag */
LPC_I2C->CONCLR = I2CONCLR_SIC;  /* Clear SI flag */
while( LPC_I2C->CONSET & I2CONSET_STO );

    This is my I2CStop() function, it's possible that if I'm in while loop to wait the Stop condition all system does not respond? (No interrupt).

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  • 0 in reply to lorenzo ballarin

    Sorry it goes on state 0x20 and it's correct.

    LPC_I2C->CONSET = I2CONSET_STO;      /* Set Stop flag */
LPC_I2C->CONCLR = I2CONCLR_SIC;  /* Clear SI flag */
while( LPC_I2C->CONSET & I2CONSET_STO );

    This is my I2CStop() function, it's possible that if I'm in while loop to wait the Stop condition all system does not respond? (No interrupt).

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