This version (02 Jan 2017 09:46) was approved by Venkatesan Krishnamoorthy.The Previously approved version (26 Apr 2016 07:14) is available.
Table of Contents
I2C Read (ADAU145X)
Click here to return to the Master Control Port section.
There are two different versions of I2C Read module.
- I2C Periodic Read
- I2C Read with external Trigger
I2C Periodic Read
The 'I2C Periodic Read' block reads a particular sub address from any I2C slave periodically and sends the value read in the output pin.
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: I2C Data | decimal - control | Outputs data read over I2C |
Configuration
Click on the configure button to configure the parameters for I2C read.
Create Multiple instances for monitoring multiple slaves/ multiple sub address from same slave.
GUI Control
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Bitrate | 400 kHz | 20 - 400 kHz | I2C Speed |
| Device Address | 0 | 0 – 127 | I2C Slave Device Address |
| Data Length | 4 | 1-4 | Length of the data to be read |
| Sub-Address Bytes | 2 | 1-4 | Length of the sub address |
| Read Interval | 1 ms | 1 - 1000 ms | Interval between 2 consecutive I2C Read |
| Read Address | 0 | 0 to Pow(2, Address Length) - 1 | Sub- address of the slave to be read |
| Initial Output Value | 0 | -2147483648 to 2147483647 | Value in the output pin till the first read is complete. |
I2C Read with external Trigger
The 'I2C Read with external Trigger' block reads a particular sub address from any I2C slave when a rising edge is detected in the input pin.
Input Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Trigger | decimal - control | Rising edge in this signal initiates read. |
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: I2C Data | decimal - control | Outputs data read over I2C |
Configuration
Click on the configure button to configure the parameters for I2C read.
Create Multiple instances for monitoring multiple slaves/ multiple sub address from same slave.
GUI Control
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Bitrate | 400 kHz | 20 - 400 kHz | I2C Speed |
| Device Address | 0 | 0 – 127 | I2C Slave Device Address |
| Data Length | 4 | 1-4 | Length of the data to be read |
| Sub-Address Bytes | 2 | 1-4 | Length of the sub address |
| Read Address | 0 | 0 to Pow(2, Address Length) - 1 | Sub- address of the slave to be read |
| Initial Output Value | 0 | -2147483648 to 2147483647 | Value in the output pin till the first read is complete. |
resources/tools-software/sigmastudio/toolbox/mastercontrolport/i2cread.txt · Last modified: 02 Jan 2017 09:46 by Venkatesan Krishnamoorthy