SPRUJC5 April   2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Reference Material
    2. 1.2 Function Listing Format
  5. 2TMS320F28P55x Flash API Overview
    1. 2.1 Introduction
    2. 2.2 API Overview
    3. 2.3 Using API
      1. 2.3.1 Initialization Flow
        1. 2.3.1.1 After Device Power Up
        2. 2.3.1.2 Flash Wrapper and Bank Setup
        3. 2.3.1.3 On System Frequency Change
      2. 2.3.2 Building With the API
        1. 2.3.2.1 Ojbects Library Files
        2. 2.3.2.2 Distribution Files
        3. 2.3.2.3 Key Facts For Flash API Usage
  6. 3API Functions
    1. 3.1 Initialization Functions
      1. 3.1.1 Fapi_initializeAPI()
    2. 3.2 Flash State Machine Functions
      1. 3.2.1  Fapi_setActiveFlashBank()
      2. 3.2.2  Fapi_setupBankSectorEnable()
      3. 3.2.3  Fapi_issueAsyncCommandWithAddress()
      4. 3.2.4  Fapi_issueBankEraseCommand()
      5. 3.2.5  Fapi_issueProgrammingCommand()
      6. 3.2.6  Fapi_issueProgrammingCommandForEccAddresses()
      7. 3.2.7  Fapi_issueAutoEcc512ProgrammingCommand()
      8. 3.2.8  Fapi_issueDataAndEcc512ProgrammingCommand()
      9. 3.2.9  Fapi_issueDataOnly512ProgrammingCommand()
      10. 3.2.10 Fapi_issueEccOnly64ProgrammingCommand()
      11. 3.2.11 Fapi_issueAsyncCommand()
      12. 3.2.12 Fapi_checkFsmForReady()
      13. 3.2.13 Fapi_getFsmStatus()
    3. 3.3 Read Functions
      1. 3.3.1 Fapi_doBlankCheck()
      2. 3.3.2 Fapi_doVerify()
    4. 3.4 Informational Functions
      1. 3.4.1 Fapi_getLibraryInfo()
    5. 3.5 Utility Functions
      1. 3.5.1 Fapi_flushPipeline()
      2. 3.5.2 Fapi_calculateEcc()
      3. 3.5.3 Fapi_isAddressEcc()
      4. 3.5.4 Fapi_remapEccAddress()
      5. 3.5.5 Fapi_calculateFletcherChecksum()
  7. 4Recommended FSM Flows
    1. 4.1 New Devices From Factory
    2. 4.2 Recommended Erase Flow
    3. 4.3 Recommended Bank Erase Flow
    4. 4.4 Recommended Program Flow
  8. 5Software Application Assumptions of Use Related to Safety
  9.   A Flash State Machine Commands
  10.   B Typedefs, Defines, Enumerations and Structures
    1.     B.1 Type Definitions
    2.     B.2 Defines
    3.     B.3 Enumerations
      1.      B.3.1 Fapi_FlashProgrammingCommandsType
      2.      B.3.2 Fapi_FlashBankType
      3.      B.3.3 Fapi_FlashStateCommandsType
      4.      B.3.4 Fapi_StatusType
      5.      B.3.5 Fapi_ApiProductionStatusType
    4.     B.4 Structures
      1.      B.4.1 Fapi_FlashStatusWordType
      2.      B.4.2 Fapi_LibraryInfoType
  11.   References

3.2.9 Fapi_issueDataOnly512ProgrammingCommand()

Sets up the flash state machine registers for the 512-bit (32 16-bit words) programming with user provided flash data and issues the programing command to valid Flash.

Synopsis

Fapi_StatusType
Fapi_issueDataOnly512ProgrammingCommand(
                        uint32 *pu32StartAddress,
                        uint16 *pu16DataBuffer,
                        uint16 u16DataBufferSizeInWords
                                       )

Parameters

pu32StartAddress [in] 512-bit aligned flash address to program the provided data
pu16DataBuffer [in] Pointer to the Data buffer address. Data buffer should be 512-bit aligned.
u16DataBufferSizeInWords [in] Number of 16-bit words in the Data buffer. Max Data buffer size in words should not exceed 32.

Description

This function will only program the data portion in Flash at the address specified. It can program 512-bit data (Second parameter) at the user provided 512-bit aligned flash address.

This function is used when a user application (that embed/use Flash API) has to program 512-bit of data and corresponding 64-bit of ECC data separately. 512-bit Data is programmed using Fapi_issueDataOnly512ProgrammingCommand () function and then the 64-bit ECC is programmed using Fapi_issueEccOnly64ProgrammingCommand() function. Generally, most of the programming utilities do not calculate ECC separately and instead use function Fapi_issueAutoEcc512ProgrammingCommand(). However, some Safety applications may require to insert intentional ECC errors in their Flash image (which is not possible when Fapi_AutoEccGeneration mode is used) to check the health of the SECDED (Single Error Correction and Double Error Detection) module at run time. In such case, ECC is calculated separately (using the Fapi_calculateEcc() function as applicable). Application may want to insert errors in either main array data or in the ECC as needed. In such scenarios, after the error insertion, Fapi_issueDataOnly512ProgrammingCommand () API and then the 64-bit ECC is programmed using Fapi_issueEccOnly64ProgrammingCommand() API can be used to program the data and ECC respectively.

For allowed programming range for the function, see Table 3-5.

Table 3-5 Permitted Programming Range for Fapi_issueDataOnly512ProgrammingCommand()
Flash API Main Array DCSM OTP ECC Link Pointer
Fapi_issueDataOnly512ProgrammingCommand() Allowed Not allowed Not allowed Not allowed

Restrictions

  • As described above, this function can program only a max of 512-bits (given the address provided is 512-bit aligned) at a time. If the user wants to program more than that, this function should be called in a loop to program 512-bits at a time.
  • The Main Array flash programming must be aligned to 512-bit address boundaries and 32 16-bit word may only be programmed once per write or erase cycle.
  • 512-bit address range starting with link pointer address shall always be programmed using 128-bit Fapi_issueProgrammingCommand().

Return Value

  • Fapi_Status_Success (success)
  • Fapi_Status_FsmBusy (FSM busy)
  • Fapi_Error_AsyncIncorrectDataBufferLength (failure: Data buffer size specified is incorrect. Also, this error will be returned if Fapi_EccOnly mode is selected when programming the Bank0 DCSM OTP space)
  • Fapi_Error_FlashRegsNotWritable (failure: Flash register writes failed. The user should make sure that the API is executing from the same zone as that of the target address for flash operation OR the user should unlock before the flash operation.
  • Fapi_Error_FeatureNotAvailable (failure: User passed a mode that is not supported)
  • Fapi_Error_InvalidAddress (failure: User provided an invalid address. For the valid address range, see the TMS320F28P55x Real-Time Microcontrollers Data Manual for TMS320F28P55x .

Sample Implementation

Example implementation for this function will be released in next C2000ware release.