Hi, I'm writing an I2C driver for the MPC8260 that needs to read/write to a 1-wire EEPROM via a single channel 1-wire master. Since I'm new to the embedded world, I was wondering, if I want to send a READ ROM command to the 1 wire EEPROM, how must I go about doing that via software? How must I format the Tx buffer of the I2C to send that out to the 1-wire EEPROM via the single-channel 1-wire master? Thanks for your help in advance. Dead Fish
MPC8260 - I2C - single channel 1-wire master (DS2482) - 1 wire EEPROM (DS2433)
Started by ●December 31, 2004
Reply by ●December 31, 20042004-12-31
>Since I'm new to the >embedded world, I was wondering, if I want to send a READ ROM command >to the 1 wire EEPROM, how must I go about doing that via software? How >must I format the Tx buffer of the I2C to send that out to the 1-wire >EEPROM via the single-channel 1-wire master?Have you read the DS2482 datasheet?
Reply by ●December 31, 20042004-12-31
Yes, I have. I've looked at the I2C Communication Examples many, many times. Do I format the TX buffer for each byte of data or can I format it to take several bytes of data?
Reply by ●December 31, 20042004-12-31
<deadfish007@yahoo.com> schrieb im Newsbeitrag news:1104507377.039287.271450@c13g2000cwb.googlegroups.com...> Yes, I have. I've looked at the I2C Communication Examples many, many > times. Do I format the TX buffer for each byte of data or can I format > it to take several bytes of data?Do yourself a favour and write a bit banging driver. It is much easier than using the I2C unit. Unless you have fully understood the programming model of the CPM, your driver will be up much faster. - Rene
Reply by ●December 31, 20042004-12-31