AM261x MCU+ SDK: SENT

| AM261x MCU+ SDK 26.00.00 |

SENT

# Introduction

The SENT receiver firmware running on PRU-ICSS provides an interface to execute the SENT protocol. The SENT application interacts with the SENT receiver firmware interface. The SENT firmware and examples are based on GPIO interface from PRU-ICSS.

# Feature Supported

Feature | Support | Remarks
--- | --- | ---
No. of Channels | 8 | Can support upto 8 channels using default example using PRU GPIO based capture
6 | Can support upto 6 channels in PRUICSS IEP CAP example (Note : It can be extendend to 8 channels using PRUICSS ECAP)
Min Tick Period | 500ns | Experimental support
Sync Correction | Yes | 20% tolerance value
Frame buffering | No | Supports only Single frame buffering
Configurable FIFO | No | Will be implemented in future release
Receiving 1 – 6 Data Nibbles | Yes | Receiving and decoding Supported in Firmware
CRC calculation | Yes | CRC calculation done along with data nibble reception
Pause Pulse | No | Will be implemented in future release
Short Serial Message Format | No | Will be implemented in default example using PRU GPIO based capture in future release
Yes | Supported in PRUICSS IEP CAP example
Enhanced Serial Message Format | No | Will be implemented in default example using PRU GPIO based capture in future release
Yes | Supported in PRUICSS IEP CAP example
Successive Calibration Pulse Check | No | Will be implemented in future release
Selectable data length for receive | No | Will be implemented in future release

## SysConfig Features

Note
  It is strongly recommend to use SysConfig where it is available instead of using direct SW API calls. This will help simplify the SW application and also catch common mistakes early in the development cycle.

SysConfig can be used to configure things mentioned below:

- Syscfg based customization will be supported in future releases.

## SENT Design

SENT Decoder Design explains the firmware design in detail.

## Example

- SENT Decoder Example
- SENT Decoder Using PRUICSS IEP ECAP Example