56 lines
1.8 KiB
Markdown
56 lines
1.8 KiB
Markdown
|
|
# EnDat {#ENDAT}
|
||
|
|
|
||
|
|
[TOC]
|
||
|
|
|
||
|
|
## Introduction
|
||
|
|
|
||
|
|
EnDat is a bidirectional interface for position encoders. During EnDat operation the EnDat receiver receives position information from the EnDat position encoder.
|
||
|
|
|
||
|
|
## Features Supported
|
||
|
|
|
||
|
|
- EnDat 2.2 command set
|
||
|
|
- EnDat 2.1 command set
|
||
|
|
- Interrupted and continuous clock mode
|
||
|
|
- Cable length up to 100m @8MHz
|
||
|
|
- Propagation delay compensation (capable of handling different propagation delay of different
|
||
|
|
propagation delay of different channels in concurrent multi
|
||
|
|
channel configuration)
|
||
|
|
- Automatic estimation of propagation delay
|
||
|
|
- Receive on-the-fly CRC verification of position, parameters and additional information
|
||
|
|
- Two modes of operation - host trigger and periodic trigger
|
||
|
|
- Channel select
|
||
|
|
- Concurrent multi channel support (up-to 3 encoders with identical part number @ 8MHz maximum)
|
||
|
|
- "Multi Channel with Encoders of Different Make" using load share mode (Each of PRU, RTU-PRU, and TX-PRU from one PRU-ICSSG slice handles one channel)
|
||
|
|
- Safety Readiness: Recovery time
|
||
|
|
|
||
|
|
## Features Not Supported
|
||
|
|
|
||
|
|
In general, peripherals or features not mentioned as part of "Features Supported" section are not
|
||
|
|
supported in this release, including the below
|
||
|
|
- Safety
|
||
|
|
- Clock configuration up to 16MHz
|
||
|
|
- Independent clocks on multi channel mode.
|
||
|
|
|
||
|
|
## SysConfig Features
|
||
|
|
|
||
|
|
@VAR_SYSCFG_USAGE_NOTE
|
||
|
|
|
||
|
|
SysConfig can be used to configure things mentioned below:
|
||
|
|
- Selecting the ICSSG instance. (Tested on ICSSG0)
|
||
|
|
- Selecting the ICSSG0PRUx instance.(Tested on ICSSG0-PRU1)
|
||
|
|
- Configuring PINMUX.
|
||
|
|
- Channel selection.
|
||
|
|
- Selecting Multi Channel with Encoders of Different Make" using load share mode.
|
||
|
|
|
||
|
|
|
||
|
|
## ENDAT Design
|
||
|
|
|
||
|
|
\subpage ENDAT_DESIGN explains the design in detail.
|
||
|
|
|
||
|
|
## Example
|
||
|
|
\ref EXAMPLE_MOTORCONTROL_ENDAT
|
||
|
|
|
||
|
|
## API
|
||
|
|
\ref ENDAT_API_MODULE
|
||
|
|
|