AM261x MCU+ SDK: EPWM HR Deadband SFO

| AM261x MCU+ SDK 26.00.00 |

EPWM HR Deadband SFO

# Introduction

This example modifies the MEP control registers to show edge displacement for high-resolution deadband with ePWM in Up count mode due to the HRPWM control extension of the respective ePWM module.

Block diagram

# External Connections

- EPWM0_A/B (EPWM1_A/B in case of AM261x-LP) pin can be connected to an oscilloscope to view the waveform.

## AM263X-CC or AM263PX-CC or AM261X-SOM

When using AM263x-CC with TMDSHSECDOCK (HSEC180 controlCARD Baseboard Docking Station)

- Connect HSEC 49 for epwm0_A
- Connect HSEC 51 for epwm0_B

## AM261X-LP

When using AM261x-LP

- Connect J5/J7 Pin 69 for epwm1_A
- Connect J5/J7 Pin 63 for epwm1_B

# Supported Combinations

Parameter | Value
--- | ---
CPU + OS | r5fss0-0 nortos
Toolchain | ti-arm-clang
Board | am261x-som, am261x-lp
Example folder | examples/drivers/epwm/hrpwm_deadband_sfo/

# Steps to Run the Example

- When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
- When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
- Establish connections as mentioned in External Connections section
- Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

# See Also

EPWM

# Sample Output

Shown below is a sample output when the application is run,

EPWM High Resolution Deadband Test Started ...
Please observe pins HSEC 49 and HSEC 51.
High Resolution Deadband 20.00 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 0
Calibration... Running...
High Resolution Deadband 20.14 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 7
Calibration... Running...
High Resolution Deadband 20.29 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 15
Calibration... Running...
High Resolution Deadband 20.44 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 23
Calibration... Running...
High Resolution Deadband 20.59 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 30
Calibration... Complete
SFO status=1 , MEP_ScaleFactor=46
High Resolution Deadband 20.74 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 38
Calibration... Running...
High Resolution Deadband 20.89 ns.
EPWM0 DBRED, DBFED = 8, DBREDHR, DBFEDHR = 46

Expected output