This version (12 May 2021 12:18) was approved by Prasad Kamath.The Previously approved version (11 May 2021 12:09) is available.
Table of Contents
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I2C Read
Description
There are two different versions of I2C Read module.
- I2C Periodic Read
- I2C Read with external Trigger
The 'I2C Periodic Read' block reads a particular sub address from any I2C slave periodically and sends the value read in the output pin.
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.
Usage
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.
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/ADSP-SC5xx | ADAU145x/146x |
|---|---|---|---|
| —————————————- | —————————————— | ————————————————-- | ——————————————- |
| I2C Read | Not Supported | Not Supported | Sample |
Pins
Input Pins
| Name | Type | Description |
|---|---|---|
| ————————— | ————————— | ———————————-- |
| Trigger | Control | Rising edge in this signal initiates read. |
Output Pins
| Name | Type | Description |
|---|---|---|
| ————————— | ——————————- | ————————————-- |
| OutputX | Control | Outputs data read over I2C |
Configurable Parameters
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| —————————————————- | ———————- | —————————————— | ———————————————————————- |
| I2CBitrate | 400 kHz | 20 - 400 kHz | I2C Speed |
| I2CDeviceAddress | 0 | 0 – 127 | I2C Slave Device Address |
| I2CDeviceAddressBits | 8-Bit | 8-Bit/7-Bit | 7 or 8 bit i2c address |
| I2CDeviceAddressFormat | Hex | Hex/Dec | Address format |
| DataLength | 4 | 1-4 | Length of the data to be read |
| SubAddressBytes | 2 | 1-4 | Length of the sub address |
| ReadAddress_OutputX | 0 | 0 to Pow(2, Address Length) - 1 | Sub- address of the slave to be read |
| InitialOutputValue_OutputX | 0 | -2147483648 to 2147483647 | Value in the output pin till the first read is complete. |
Note: X indicates the channel number
DSP Parameters
Not applicable
DSP Parameter Computation
Not applicable
resources/tools-software/sigmastudiov2/modules/mastercontrolport/i2cread.txt · Last modified: 11 May 2021 16:25 by Prasad Kamath