i.MX RT1010
NXP Semiconductors
In order to emulate the communication between a master (such as a controller) and a slave (such as a sensor) of an SSI, two i.MXRT1010 EVK boards are used in this demo.
Application NoteNxp
NXP AN12759: Emulating SSI Bus with FlexIO on i.MX RT1010
Technical guide for emulating a Synchronous Serial Interface (SSI) using the FlexIO module on NXP i.MX RT1010 processors to support absolute position sensors and controllers.
Overview
This application note describes how to implement the Synchronous Serial Interface (SSI) on the NXP i.MX RT1010 processor by emulating it through the FlexIO module. Because the i.MX RT1010 lacks dedicated SSI hardware, this document provides a method to achieve equivalent performance using two timers and two shifters within the FlexIO block. The guide details configurations for both master and slave modes following the Texas Instruments synchronous serial frame format. It includes specific register settings for FlexIO timers and shifters, hardware connection diagrams for the RT1010 EVK boards, and performance constraints regarding synchronization delays and maximum baud rates.
Use Cases
- Interfacing absolute position sensors with i.MX RT1010 controllers
- Adding SSI peripheral support to systems lacking native hardware SSI
- Synchronous data communication between master and slave devices
- Extending serial interface capabilities using FlexIO programmable logic
- High-performance real-time sensor data acquisition
Topics
NXP
i.MX RT1010
FlexIO
SSI
Synchronous Serial Interface
SSI Emulation
Cortex-M7
Application Note
Position Sensor Interface
Serial Communication
Referenced Parts
| i.MX RT1010 | NXP Semiconductors | In order to emulate the communication between a master (such as a controller) and a slave (such as a sensor) of an SSI, two i.MXRT1010 EVK boards are used in this demo. |