SPRACQ1 May   2020 TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377S , TMS320F28379D , TMS320F28379S , TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S

 

  1.   Migration Between TMS320F2837x and TMS320F2838x
    1.     Trademarks
    2. 1 Feature Differences Between F2837x and F2838x
      1. 1.1 F2837x and F2838x Feature Comparison
    3. 2 PCB Hardware Changes
      1. 2.1 VDD Pin
      2. 2.2 VREGENZ Pin
      3. 2.3 Analog Pin Assignment
      4. 2.4 GPIO Pin Assignment
      5. 2.5 controlCARD
    4. 3 Feature Differences for System Consideration
      1. 3.1 New Features in F2838x Device
        1. 3.1.1  Fast Integer Division (FINTDIV)
        2. 3.1.2  VCRC Unit
        3. 3.1.3  EtherCAT Slave Controller (ESC)
        4. 3.1.4  Background CRC (BGCRC)
        5. 3.1.5  Diagnostic Features (PBIST/HWBIST)
        6. 3.1.6  Power Management Bus Module (PMBus)
        7. 3.1.7  Fast Serial Interface (FSI)
        8. 3.1.8  Embedded Real-time Analysis and Diagnostic (ERAD)
        9. 3.1.9  Dual-Clock Comparator (DCC)
        10. 3.1.10 Connectivity Manager (CM)
      2. 3.2 Features Differences/Enhancements in F2838x
        1. 3.2.1 System
          1. 3.2.1.1 Reset
          2. 3.2.1.2 Clocking
            1. 3.2.1.2.1 PLL
            2. 3.2.1.2.2 X1CNT
            3. 3.2.1.2.3 XCLKOUT
          3. 3.2.1.3 Pie Channel Mapping and Interrupt
            1. 3.2.1.3.1 SYS_ERR Interrupt
          4. 3.2.1.4 ERRORSTS Pin
        2. 3.2.2 Watchdog and NMI Watchdog
        3. 3.2.3 Memory
          1. 3.2.3.1 Internal SRAM/ROM
          2. 3.2.3.2 Flash
        4. 3.2.4 Dual Code Security Module (DCSM)
        5. 3.2.5 ROM Code and Peripheral Booting
        6. 3.2.6 External Memory Interface (EMIF)
        7. 3.2.7 Communication Modules
        8. 3.2.8 Control Modules
          1. 3.2.8.1 Enhanced Pulse Width Modulator (ePWM) and ePWM Sync Scheme
          2. 3.2.8.2 Enhanced Capture (eCAP)
          3. 3.2.8.3 Enhanced Quadrature Encoder Pulse (eQEP)
          4. 3.2.8.4 Sigma Delta Filter Module (SDFM)
        9. 3.2.9 Analog Modules
      3. 3.3 Other Device Changes
        1. 3.3.1 Bus Architecture
          1. 3.3.1.1 CLA and DMA Access
        2. 3.3.2 Control Law Accelerator (CLA)
        3. 3.3.3 Direct Memory Access (DMA)
      4. 3.4 Power Management
        1. 3.4.1 LDO/VREG
        2. 3.4.2 POR/BOR
      5. 3.5 Power Consumption
      6. 3.6 GPIO
        1. 3.6.1 GPIO Multiplexing Diagram
    5. 4 Application Code Migration From F2837x to F2838x
      1. 4.1 C2000Ware Driverlib Files
      2. 4.2 C2000Ware Header Files
      3. 4.3 Linker command Files
      4. 4.4 Minimum Compiler Version Requirement
      5. 4.5 EABI Support
        1. 4.5.1 Flash API
        2. 4.5.2 NoINIT Struct Fix (linker command)
        3. 4.5.3 Pre-Compiled Libraries
    6. 5 References

4.5.1 Flash API

The F2838x Flash API is enhanced to return an error when an invalid programming mode is provided for program operation. Also, it is enhanced to check the validity of the input address for different functions. Fapi_getLibraryInfo() in F2838x_C28x_FlashAPI.lib returns the Flash API minor version as 60 (F2837xD Flash API returns 54 as the API minor version). Note that the F2838x Flash API library is compiled for EABI format, whereas, the F2837x Flash API library is compiled for legacy COFF. These features are summarized in Table 20

Table 20. Flash API Differences

Feature F2838x F2837x
Library Name F2838x_C28x_FlashAPI.lib (CPU1/CPU2)
F2838x_CM_FlashAPI.lib (CM)		 F021_API_F2837x_FPU32.lib
Library Executable Output EABI COFF (with future EABI support)
Flash Wait States Same wait states on both devices
FlashAPI Minor Version 60 54 (F2837xD), 55 (F2837xS)

For more details, see TMS320F2838x Flash API Reference Guide.

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