This version is outdated by a newer approved version.
This version (08 May 2017 08:45) is a draft.
Approvals: 0/1The Previously approved version (13 Sep 2016 21:41) is available.
This version (08 May 2017 08:45) is a draft.Approvals: 0/1The Previously approved version (13 Sep 2016 21:41) is available.
This is an old revision of the document!
Table of Contents
Interface Write(ADAU145x)
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The Interface Write module writes the value of the parameter setting to the EEPROM when required, so that the parameter setting can be used after the power down(via selfboot).The module can write the value to EEPROM when the parameter value is changed or periodically or an external trigger(rising edge). The module supports writes through SPI or I2C protocols.
The Interface Write module has the following properties which can be set by the user in the form to configure the I2C or SPI modes.
NOTE:
- Make sure that the interface read and interface write modules that are with each interacting have the same Interface number paramter.
Input Pins
| Name | Format [int/dec/float] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Input | decimal(ADAU145x)- audio float(214xx) - audio | Input signal to be filtered |
Grow Algorithm
The module doesn't supports growth functionality. Add is not supported.
GUI Controls
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Protocol | 1 | 0-1 | The Protocol selected - I2C(0) or SPI(1) |
| Bitrate | 100kHz | 400/800/1000 kHz(I2C), 100-100000KHz (SPI) | I2C/ SPI Speed |
| Sub Address Bytes | 3 | 1-3 | Length of the address for SPI/I2C |
| Device Address | 0 | I2C: Slave address 0-127 SPI: Slave select 0-6 | Slave Adddress |
| SPI Mode | 1 | 0-1 | SPI Modes 0 or 3 |
| Command Length | 1 | 0-255 | This is the SPI R/W instruction bytes |
| Write Instruction (SPI) | 2 | 0-255 | SPI write command bytes |
| Read Instruction(SPI) | 3 | 0-255 | SPI read command bytes |
| Write-Enable instruction (SPI) | 6 | 0-255 | Write enable for SPI |
| Write mode | 0 | 0-2 | The triggering modes for Interface write module, 0- write on Value change, 1-write Periodically with set write interval, 2- write on GPIO trigger |
DSP Parameter Information
| GUI Control Name | Compiler Name | Function Description |
|---|---|---|
| Protocol | InterfaceWrite300Protocol | The Number of filter coefficient sets |
| Bitrate | FirFiltPoolS300Alg1TapSize | The Number of filter taps in each coefficient set |
| Sub-Address Bytes | FirFiltPoolS300Alg1InIndx | The selected input index |
| FiltIndx | FirFiltPoolS300Alg1FIltIndx | The Selected filter coefficient set index |
| Device Address | FirFiltPoolS300Alg1RevIndx | The Selected Reverse Index, if set(value=1), the coefficient access order for filtering is reversed |
| SPI Mode | FirFiltPoolS300Alg1InvIndx | The Selected Invert Index, if set(value=1), the output value is negated |
Use Case 1
The interface write module can be used an outpur moudule to the UPDown LUT. The Interface write module writes the output of the UPDown LUT parameter setting to the EEPROM if the conditions to write are satisfied.
Use Case 2
The Interface write module can be used to store any the parameter setting to the EEPROM and read it back during the selfboot using the corresponding Interface read module. When the GPIO trigger is a rising edge signal, the Interface write module will write to the EEPROM. During the powerdown, a rising edge signal can be provided in the GPIO to store the interface value to EEPROM.
Use Case 3
The Interface write module can be used to write any value to the EEPROM and read it back during the selfboot using the corresponding Interface read module.
resources/tools-software/sigmastudio/toolbox/io/inferfacewrite.1494225949.txt.gz · Last modified: 08 May 2017 08:45 by Prasad Kamath