SPRAC77E January   2022  – February 2022 TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S

 

  1.   Trademarks
  2. 1Introduction
  3. 2PTO – PulseGen
    1. 2.1 PulseGen Implementation Overview
    2. 2.2 PulseGen Limitations
    3. 2.3 PulseGen CLB Configuration
    4. 2.4 PulseGen Input and Output Signals
  4. 3PTO – QepDiv
    1. 3.1 QepDiv Implementation Overview
    2. 3.2 QepDiv Limitations
    3. 3.3 QepDiv Divider Settings and Initialization
    4. 3.4 QepDiv CLB Configuration
  5. 4PTO – Abs2Qep
    1. 4.1 Abs2Qep Chip resources
    2. 4.2 Abs2Qep Theory of Operation
      1. 4.2.1 Abs2Qep Translation Equations
      2. 4.2.2 Abs2Qep Translation Example
      3. 4.2.3 Abs2Qep Zero Cross Detection
    3. 4.3 Abs2Qep CLB Configuration
      1. 4.3.1 Abs2Qep QEP-A/B Pulse Train Generation
      2. 4.3.2 Abs2Qep Halt Latch
      3. 4.3.3 Abs2Qep High Level Controller (HLC)
    4. 4.4 Abs2Qep Input and Output Signals
  6. 5PTO – QepOnClb QEP Decoder
    1. 5.1 QepOnClb and eQEP Comparison
    2. 5.2 QepOnClb Chip resources
    3. 5.3 QepOnClb Theory of Operation
    4. 5.4 QepOnClb CLB Resources
      1. 5.4.1 QepOnClb QCLK State Machine
      2. 5.4.2 QepOnClb Direction Decode
      3. 5.4.3 QepOnClb Error Detection
      4. 5.4.4 QepOnClb Simulation Waveforms
  7. 6Example Projects
    1. 6.1 Hardware Requirements
    2. 6.2 Installing Code Composer Studio and C2000WARE-MOTORCONTROL-SDK™
    3. 6.3 Import and Run Example Project
    4. 6.4 PulseGen Example
    5. 6.5 QepDiv Example
    6. 6.6 Abs2Qep Example
      1. 6.6.1 Watch Variables
      2. 6.6.2 Test Signals
      3. 6.6.3 Pin Usage and Test Connections
    7. 6.7 QepOnClb Example
      1. 6.7.1 Watch Variables
      2. 6.7.2 Header Pin Connections
  8. 7Library Source and Projects
    1. 7.1 Locating the Library Source Code
    2. 7.2 Import and Build the Library Project
    3. 7.3 PTO - PulseGen API
      1. 7.3.1 pto_pulsegen_runPulseGen
      2. 7.3.2 pto_startOperation
      3. 7.3.3 pto_pulsegen_setupPeriph
      4. 7.3.4 pto_pulsegen_reset
    4. 7.4 PTO - QepDiv API
      1. 7.4.1 pto_qepdiv_config
      2. 7.4.2 pto_startOperation
      3. 7.4.3 pto_qepdiv_setupPeriph
      4. 7.4.4 pto_qepdiv_reset
    5. 7.5 PTO - Abs2Qep API
      1. 7.5.1 Abs2Qep API Configuration
      2. 7.5.2 pto_abs2qep_runPulseGen
      3. 7.5.3 pto_abs2qep_setupPeriph
      4. 7.5.4 pto_abs2qep_translatePosition
    6. 7.6 PTO - QepOnClb API
      1. 7.6.1 pto_qeponclb_setupPeriph
      2. 7.6.2 pto_qeponclb_initCLBQEP
      3. 7.6.3 pto_qeponclb_configMaxCounterPos
      4. 7.6.4 pto_qeponclb_enableCLBQEP
      5. 7.6.5 pto_qeponclb_resetCLBQEP
      6. 7.6.6 pto_qeponclb_getCounterVal
      7. 7.6.7 pto_qeponclb_getCLBQEPPos
      8. 7.6.8 pto_qeponclb_clearFIFOptr
  9. 8Using the Reference APIs in Projects
    1. 8.1 Adding PTO Support to a Project
    2. 8.2 Routing To and From the CLB
    3. 8.3 Initialization Steps
      1. 8.3.1 PTO-PulseGen API Initalization
      2. 8.3.2 PTO-QepDiv API Initialization
      3. 8.3.3 PTO-Abs2Qep API Initialization
      4. 8.3.4 PTO-QepOnClb API Initialization
  10. 9References
  11.   Revision History

7.4 PTO - QepDiv API

This section details the QepDiv Library functions. For information on locating the source code and rebuilding the library, see Section 7.

QepDiv include file: pto_qepdiv.h

Table 7-3 PTO-QepDiv API Functions
NameDescriptionType
pto_qepdiv_resetUsed to reset the qepdiv parameters set by earlier configuration and start a fresh setup. This function needs to be called in case the pulse generation needs to be reset and started again at a later stage.Initialization time
pto_qepdiv
_setupPeriph		Setup for CLB and other interconnect XBARs is performed with this function during system initialization. This function needed to be called after every system reset. No transactions will be performed until the setup peripheral function is called.Initialization time
pto_qepdiv
_startOperation		This function will initiate the pulse generation on the interface. To be called after pto_qepdiv_setupPeriph. Performs the transaction set up by earlier function. Note that the setup up and start operation are separate function calls. User can setup the peripherals when needed and start the actual pulse generation using this function call, as needed, at a different time.Run time
pto_qepdiv_configThis function configures the divider, the divider value cannot be changed dynamically. User needs to reset the module using pto_qepdiv_reset before reconfiguring the functionality.Run time