SFFS700 May 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
When a node on the I2C network receives a byte (address or data), it sends an acknowledgment that the address is acknowledged or the data byte is received successfully. When a transmitted message is not acknowledged by the recipient I2C, the transmitting I2C will flag NACK. Necessary software requirements are defined by the system integrator. For example a function which needs to transfer 4 bytes of data and can sent CRC as 5th byte. The device software can be designed such that the acknowledge is not provided if the data and CRC doesn’t match.