TMS320F28035: I2C eeprom development hardware

Hi,

Which eeprom part are you using in this case?

Regards,

Gautam

24FC512

The code is close except that the processor is waiting for the while loop and the for loop, also sending is stopping after sending the FIFO contents. What I meed to do is have the foreground process start the transmit of a 64 byte block. In the I2C interrupt routine when the FIFO is empty the interrupts need to reload the FIFO. The process should not stop until all 64 data bytes are sent.




I2caRegs.I2CSAR = I2C_SLAVE_ADDR; //Set slave address
I2caRegs.I2CCNT = I2C_NUMBYTES + 2; //Set count to 5 characters plus 2 address bytes
I2caRegs.I2CDXR = MemoryHighAddr; //Send eeprom high address
I2caRegs.I2CMDR.bit.TRX = 1; //Set to Transmit mode
I2caRegs.I2CMDR.bit.MST = 1; //Set to Master mode
I2caRegs.I2CMDR.bit.FREE = 1; //Run in FREE mode
I2caRegs.I2CMDR.bit.STP = 1; //Stop when internal counter becomes 0
I2caRegs.I2CMDR.bit.STT = 1; //Send the start bit, transmission will follow
while(I2caRegs.I2CSTR.bit.XRDY == 0){}; //Do nothing till data is shifted out
I2caRegs.I2CDXR = MemoryLowAddr; //Send eeprom low address

for(i = 0; i < I2C_NUMBYTES; i++){
while(I2caRegs.I2CSTR.bit.XRDY == 0){}; //Do nothing till data is shifted out
I2caRegs.I2CDXR = Data[i]; //Send out the message
}
/////////////

Hello Dale,

Is there question here? Are you still experiencing issues?

Best Regards,
Adam Dunhoft

Hi Adam,
Still having a problem sending / receiving a 64 byte packet only using interrupts. Once the packet is started I am not sure if I should be using the ARDYINT , RM or the TXFFINT. I will be working through the details next week. I have been looking for an example and as of yet not found one. If anyone can point me to a complete example it would help.
Thanks.

Using TXFFINT would be the best approach. We don't have a specific example for this, unfortunately.