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Altera_Forum's avatar
Altera_Forum
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13 years ago

2 Serial Devices on one board

Hello all, I am currently working on a project in which I need to connect two digital sensors, a Temp & Humidity sensor(SHT 15) and an accelerometer (ADXL345) both digital sensors. They also bo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Ok, we have invested in a new SHT21 which uses I2C.

Now when building our system in SOPC builder, I have added a SPI(3-wire interface) for the ADXL345 under Interface Protocols->Serial->SPI(3 wire interface).

Setup:

Type-Master

Number of Selects-1

SCLK-4900000

Data width- 32 bits

Shift- MSB

Clock Polarity and Phase-0

My real question lies in the implementation of I2C protocol. I don't see a core for I2C implementation.. any advice? OpenCores.org?