I2C pic slave & external eeprom

WASSIM · Joined: 01 Apr 2008 Posts: 5

i connected, two PIC16F877 and an eeprom by the I2C bus.
i need to save an array from the pic slave to an external eeprom,
so i save the array in the pic master eeprom, then i write in eeprom. this take much time for the process,

so can I write directly from the pic slave to the eeprom??

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

If you have enough RAM in the master PIC, I would read all of the data, from the slave PIC, and place it in RAM. Then, I would write it to the external eeprom. It would take much longer if you tried to bounce back and forth between the slave PIC and the external eeprom.

Ronald

Matro · Guest

Not in this configuration but if your project allow the next way, you can use both of your PICs in master mode and have the bus working in multi-master mode.

Matro