SPRADE8B November   2023  – August 2025 F29H850TU , F29H859TU-Q1 , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Difference Between EEPROM and On-Chip Flash
  6. 3 Overview
    1. 3.1 Basic Concept
    2. 3.2 Single-Unit Method
    3. 3.3 Ping-Pong Method
    4. 3.4 Creating EEPROM Sections (Pages) and Page Identification
  7. 4 Software Description
  8. 5 Ping-Pong Emulation
    1. 5.1 User-Configuration
      1. 5.1.1 EEPROM_PingPong_Config.h
      2. 5.1.2 F28P65x_EEPROM_PingPong.c
    2. 5.2 Testing Example
  9. 6 EEPROM Functions
    1. 6.1  EEPROM_Config_Check
    2. 6.2  Configure_Protection_Masks
    3. 6.3  EEPROM_Write
    4. 6.4  EEPROM_Read
    5. 6.5  EEPROM_Erase
      1. 6.5.1 Erase_Bank
    6. 6.6  EEPROM_GetValidBank
    7. 6.7  EEPROM_UpdateBankStatus
    8. 6.8  EEPROM_UpdatePageStatus
    9. 6.9  EEPROM_UpdatePageData
    10. 6.10 EEPROM_Get_64_Bit_Data_Address
    11. 6.11 EEPROM_Program_64_Bits
    12. 6.12 EEPROM_CheckStatus
    13. 6.13 ClearFSMStatus
  10. 7 Single-Unit Emulation
    1. 7.1 User-Configuration
      1. 7.1.1 EEPROM_Config.h
      2. 7.1.2 F28P65x_EEPROM.c
    2. 7.2 EEPROM Functions
      1. 7.2.1  EEPROM_Config_Check
      2. 7.2.2  Configure_Protection_Masks
      3. 7.2.3  EEPROM_Write
      4. 7.2.4  EEPROM_Read
      5. 7.2.5  EEPROM_Erase
      6. 7.2.6  EEPROM_GetValidBank
      7. 7.2.7  EEPROM_Get_64_Bit_Data_Address
      8. 7.2.8  EEPROM_UpdateBankStatus
      9. 7.2.9  EEPROM_UpdatePageStatus
      10. 7.2.10 EEPROM_UpdatePageData
      11. 7.2.11 EEPROM_Get_64_Bit_Data_Address
      12. 7.2.12 EEPROM_Program_64_Bits
      13. 7.2.13 EEPROM_CheckStatus
      14. 7.2.14 ClearFSMStatus
    3. 7.3 Testing Example
  11. 8 Application Integration
    1. 8.1 Software Functionality and Flow
  12. 9 Adapting to Other Gen 3 C2000 MCUs
  13. 10Flash API
    1. 10.1 Flash API Checklist
      1. 10.1.1 Flash API Do's and Do Not's
  14. 11Source File Listing
  15. 12Troubleshooting
    1. 12.1 General
  16. 13Conclusion
  17. 14References
  18. 15Revision History

1 Introduction

Generation 3 C2000 MCUs come with different configurations of Flash memory that is arranged in multiple sectors. Unfortunately, the technology used for the on-chip Flash memory does not allow adding a traditional EEPROM on the chip. Some designers use an external EEPROM part for such non-volatile storage. The good news is that Flash memory is a specific type of EEPROM and all Generation 3 C2000 MCUs have in-circuit programming ability for the Flash memory. This application report makes use of this facility and allows using sectors of on-chip Flash as EEPROM by emulating the EEPROM functionality within the limitations of the Flash memory. Note that at least one Flash sector is entirely used as an emulated EEPROM; therefore, this is not available for the application code.

Note: Generation 3 C2000 MCUs include: TMS320F2837x, TMS320F2838x, TMS320F28004x, TMS320F28002x, TMS320F28003x, TMS320F280013x, TMS320F280015x, TMS320F28P65x, TMS320F28P55x, TMS320F28E12x.