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Author Topic: use of multiple devices on i2c microcontroller communication systems  (Read 579 times)
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cbcelikcan
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« on: December 04, 2018, 03:00:42 15:00 »


PIC18F2550 microcontroller communicates with 24LC512 EEPROM and DS1631 temperature sensor over an I2C bus.

24LC512 The first four bits of the 7-bit address for this device is set as ‘1010’. The next three bits are,however, configurable through its A0, A1, and A2 pins. For example,a 24LC512 device with A0 at logic high and A1-A2 pins grounded willhave its 7-bit address as ‘1010001’ . This scheme allows a maximumof 8 similar devices addressable on the same I2C bus.
 ( from Inter-Integrated Circuit (I2C) communication - Embedded Lab)
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pickit2
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« Reply #1 on: December 04, 2018, 06:48:38 18:48 »

PIC18F2550 microcontroller communicates with 24LC512 EEPROM and DS1631 temperature sensor over an I2C bus.

24LC512 The first four bits of the 7-bit address for this device is set as ‘1010’. The next three bits are,however, configurable through its A0, A1, and A2 pins. For example,a 24LC512 device with A0 at logic high and A1-A2 pins grounded willhave its 7-bit address as ‘1010001’ . This scheme allows a maximumof 8 similar devices addressable on the same I2C bus.
 ( from Inter-Integrated Circuit (I2C) communication - Embedded Lab)
don't you think just posting one page of a pdf file, and this post is adding anything to a site that has a good reputation for having intelligent content. you only have to look at image to see two errors that were in the post I deleted.

http://www.sonsivri.to/forum/index.php?topic=52924.msg178100#msg178100 this was another of your silly posts.
« Last Edit: December 05, 2018, 05:07:40 05:07 by pickit2 » Logged

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anotherandrew
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« Reply #2 on: December 05, 2018, 08:42:44 08:42 »

what is purpose of posting garbage like this? using multiple i2c devices on single bus is trivial even for beginner. Much better to ask questions for your own project and do show-and-tell if you can share personal project info.
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towlerg
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« Reply #3 on: December 08, 2018, 09:10:18 09:10 »

Not wishing to pile on (but I'm going to) the whole raison d'κtre of I2C is allow the connection of multiple devices on a single bus.
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