Part Number: TMS320F280049C
Other Parts Discussed in Thread: C2000WARE
Hello,
I'm currently attempting to utilize an unused sector of the flash bank in my C2000 device for EEPROM emulation. While researching this, I came across a document (SPRAB69A) that outlines a similar implementation for older gen2 devices.
My intention was to adapt this framework using the latest flash API. However, I've encountered a persistent issue when running this code in an application. I keep receiving the error message "can't find the source file at this address."
Furthermore, when I attempt to include the "Fapi_setActiveFlashBank" function in the code, I encounter a different error: "<a href="file:/C:/ti/ccs1220/ccs/tools/compiler/dmed/HTML/10099.html">#10099-D</a> program will not fit into available memory, or the section contains a call site that requires a trampoline that can't be generated for this section. Run placement with alignment/blocking fails for section "GROUP_1" size 0x933 page 0. Available memory ranges:"
For your reference, I have attached my code.
Thank you for your assistance.
Linker code:
MEMORY
{
PAGE 0 :
RAMM0 : origin = 0x0000F5, length = 0x00030B
RAMLS0 : origin = 0x008000, length = 0x000800
RAMLS1 : origin = 0x008800, length = 0x000800
RAMLS2 : origin = 0x009000, length = 0x000800
RAMLS3 : origin = 0x009800, length = 0x000800
RAMLS4 : origin = 0x00A000, length = 0x000800
RESET : origin = 0x3FFFC0, length = 0x000002
#ifdef __TI_COMPILER_VERSION__
#if __TI_COMPILER_VERSION__ >= 20012000
GROUP { /* GROUP memory ranges for crc/checksum of entire flash */
#endif
#endif
/* BEGIN is used for the "boot to Flash" bootloader mode */
BEGIN : origin = 0x080000, length = 0x000002
/* Flash sectors */
/* BANK 0 */
FLASH_BANK0_SEC0 : origin = 0x080002, length = 0x000FFE /* on-chip Flash */
FLASH_BANK0_SEC1 : origin = 0x081000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC2 : origin = 0x082000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC3 : origin = 0x083000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC4 : origin = 0x084000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC5 : origin = 0x085000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC6 : origin = 0x086000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC7 : origin = 0x087000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC8 : origin = 0x088000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC9 : origin = 0x089000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC10 : origin = 0x08A000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC11 : origin = 0x08B000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC12 : origin = 0x08C000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC13 : origin = 0x08D000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC14 : origin = 0x08E000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC15 : origin = 0x08F000, length = 0x001000 /* on-chip Flash */
/* BANK 1 */
FLASH_BANK1_SEC0 : origin = 0x090000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC1 : origin = 0x091000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC2 : origin = 0x092000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC3 : origin = 0x093000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC4 : origin = 0x094000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC5 : origin = 0x095000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC6 : origin = 0x096000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC7 : origin = 0x097000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC8 : origin = 0x098000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC9 : origin = 0x099000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC10 : origin = 0x09A000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC11 : origin = 0x09B000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC12 : origin = 0x09C000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC13 : origin = 0x09D000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC14 : origin = 0x09E000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC15 : origin = 0x09F000, length = 0x000FF0 /* on-chip Flash */
FLASH_BANK1_SEC15_DO_NOT_USE : origin = 0x09FFF0, length = 0x000010 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
#ifdef __TI_COMPILER_VERSION__
#if __TI_COMPILER_VERSION__ >= 20012000
} crc(_ccs_flash_checksum, algorithm=C28_CHECKSUM_16)
#endif
#endif
PAGE 1 :
BOOT_RSVD : origin = 0x000002, length = 0x0000F3 /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAMLS5 : origin = 0x00A800, length = 0x000800
RAMLS6 : origin = 0x00B000, length = 0x000800
RAMLS7 : origin = 0x00B800, length = 0x000800
RAMGS0 : origin = 0x00C000, length = 0x002000
RAMGS1 : origin = 0x00E000, length = 0x002000
RAMGS2 : origin = 0x010000, length = 0x002000
RAMGS3 : origin = 0x012000, length = 0x002000
}
SECTIONS
{
codestart : > BEGIN, PAGE = 0, ALIGN(4)
.text : >>FLASH_BANK0_SEC1 | FLASH_BANK0_SEC2 | FLASH_BANK0_SEC3, PAGE = 0, ALIGN(4)
.cinit : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.pinit : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.switch : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */
.stack : > RAMM1, PAGE = 1
.ebss : > RAMLS5, PAGE = 1
.esysmem : > RAMLS5, PAGE = 1
.econst : > FLASH_BANK0_SEC4, PAGE = 0, ALIGN(4)
ramgs0 : > RAMGS0, PAGE = 1
ramgs1 : > RAMGS1, PAGE = 1
GROUP
{
.TI.ramfunc
{ -l F021_API_F28004x_FPU32.lib}
}
LOAD = FLASH_BANK0_SEC9 | FLASH_BANK0_SEC10 | FLASH_BANK0_SEC13,
RUN = RAMLS0 | RAMLS1 | RAMLS2 |RAMLS3,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)
/* crc/checksum section configured as COPY section to avoid including in executable */
.TI.memcrc : type = COPY
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
Header File:
//############################################################################
//
// FILE: F280xx_EEPROM.h
//
// TITLE: Function Prototypes, Global Variables, Pointer Initialization
// and, Bank/Page Status Definitions
//
//############################################################################
// Authors: Tim Love / Pradeep Shinde
// Release Date: Sep 2009
//############################################################################
#include <F021_F28004x_C28x.h>
// Project specific defines
//#define SINGLE_BYTE 1
#define MULTI_BYTE 1
//Just for flash
#define FLASH_SECTOR 0x090000
#define RESET_BANK_POINTER Bank_Pointer = (uint16 *)FLASH_SECTOR // Sector H
#define RESET_PAGE_POINTER Page_Pointer = (uint16 *)(FLASH_SECTOR+1)
#define END_OF_SECTOR 0x8FFFF;
//Only for ECC
#define ECC_BANK_BUFFER (uint16*)0x0
#define ECC_PAGE_BUFFER (uint16*)0x0
//#endif
// Bank/Page Status Definitions
#define EMPTY_BANK 0xFFFF
#define CURRENT_BANK 0xA00A
#define USED_BANK 0x0000
#define BLANK_PAGE 0xFFFF
#define CURRENT_PAGE 0x00FF
#define USED_PAGE 0x0000
// Function Prototypes
extern void EEPROM_GetValidBank();
extern void EEPROM_Erase();
extern void EEPROM_Read();
extern void EEPROM_Write();
extern void EEPROM_UpdateBankStatus();
extern void EEPROM_UpdatePageStatus();
extern void EEPROM_GetSinglePointer(uint16 First_Call);
extern void EEPROM_ProgramSingleByte(uint16 data);
// Global Variables
extern uint16 *Bank_Pointer;
extern uint16 *Page_Pointer;
extern uint16 *Sector_End;
extern uint16 Read_Buffer[64];
extern uint16 Write_Buffer[64];
Source File:
//############################################################################
//
// FILE: F280xx_EEPROM.c
//
// TITLE: EEPROM Read, Write, and Erase Functions
//
//############################################################################
// Authors: Tim Love / Pradeep Shinde
// Release Date: Sep 2009
//############################################################################
#include "F280xx_EEPROM.h" // EEPROM Include File
// Global Variables
uint16 Read_Buffer[64];
uint16 Write_Buffer[64];
uint16 Bank_Counter = 0;
uint16 Page_Counter = 0;
uint16 Bank_Status[1] = {0};
uint16 Page_Status[1] = {0};
uint16 *Bank_Pointer;
uint16 *Page_Pointer;
uint16 *Sector_End;
//Fapi_FlashStatusType FlashStatus;
Fapi_FlashStatusType ProgStatus;
// All Flash API functions need to be ran from internal RAM. Place all functions
// that contain Flash API calls in .TI.ramfunc to allow copy from Flash to RAM.
#pragma CODE_SECTION(EEPROM_Erase,".TI.ramfunc");
#pragma CODE_SECTION(EEPROM_Write,".TI.ramfunc");
#pragma CODE_SECTION(EEPROM_UpdateBankStatus,".TI.ramfunc");
#pragma CODE_SECTION(EEPROM_UpdatePageStatus,".TI.ramfunc");
#pragma CODE_SECTION(EEPROM_ProgramSingleByte,".TI.ramfunc");
//######################### EEPROM_GET_VALID_BANK ############################
void EEPROM_GetValidBank()
{
//Each page holds 64 data words
//Page size = Page_status word + 64W = 65W
//Bank Size = Bank_status word + 8 * Page size = 1 + 8*65 = 521W
uint16 i;
RESET_BANK_POINTER; // Reset Bank Pointer to enable search for current Bank
RESET_PAGE_POINTER; // Reset Page Pointer to enable search for current Page
// Find Current Bank
for(i=0;i<8;i++)
{
Bank_Status[0] = *(Bank_Pointer); // Read contents of Bank Pointer
if(Bank_Status[0] == EMPTY_BANK) // Check for Unused Bank
{
Bank_Counter = i; // Set Bank Counter to number of current page
return; // If Bank is Unused, return as EEPROM is empty
}
if(Bank_Status[0] == CURRENT_BANK) // Check for In Use Bank
{
Bank_Counter = i; // Set Bank Counter to number of current bank
Page_Pointer = Bank_Pointer + 1; // Set Page Pointer to first page in current bank
break; // Break from loop as current bank has been found
}
if(Bank_Status[0] == USED_BANK) // Check for Used Bank
Bank_Pointer += 521; // If Bank has been used, set pointer to next bank
}
// Find Current Page
for(i=0;i<8;i++)
{
Page_Status[0] = *(Page_Pointer); // Read contents of Page Pointer
// Check for Blank Page or Current Page
if(Page_Status[0] == BLANK_PAGE || Page_Status[0] == CURRENT_PAGE)
{
Page_Counter = i; // Set Page Counter to number of current page
break; // Break from loop as current page has been found
}
if(Page_Status[0] == USED_PAGE) // Check for Used Page
Page_Pointer += 65; // If page has been used, set pointer to next page
}
if (Bank_Counter==7 && Page_Counter==7) // Check for full EEPROM
{
EEPROM_Erase(); // Erase flash sector being used as EEPROM
RESET_BANK_POINTER; // Reset Bank Pointer as EEPROM is empty
RESET_PAGE_POINTER; // Reset Pank Pointer as EEPROM is empty
asm(" ESTOP0");
}
}
//######################### EEPROM_GET_VALID_BANK ############################
//############################# EEPROM_ERASE #################################
void EEPROM_Erase()
{
Fapi_StatusType Status;
Status = Fapi_issueAsyncCommandWithAddress((Fapi_EraseSector),(uint32 *)FLASH_SECTOR);
while (Fapi_checkFsmForReady() != Fapi_Status_FsmReady){}
if(Status != Fapi_Status_Success) // If Erase fails halt program or handle error
{
asm(" ESTOP0");
}
}
//############################# EEPROM_ERASE #################################
//############################# EEPROM_READ ##################################
void EEPROM_Read()
{
uint16 i;
EEPROM_GetValidBank(); // Find In Use Bank and Current Page
// Transfer contents of Current Page to Read Buffer
for(i=0;i<64;i++)
Read_Buffer[i] = *(++Page_Pointer);
}
//############################# EEPROM_READ ##################################
//############################ EEPROM_WRITE ##################################
void EEPROM_Write()
{
// Variables need for Flash API Functions
Fapi_StatusType Status;
uint32 Length;
// Fapi_FlashStatusType ProgStatus;
//Fapi_setActiveFlashBank(Fapi_FlashBank0);
EEPROM_GetValidBank(); // Find In Use Bank and Current Page
EEPROM_UpdatePageStatus(); // Update Page Status of previous page
EEPROM_UpdateBankStatus(); // Updage Bank Status of current and previous bank
// Program data located in Write_Buffer to current page
Length = 64; // Set Length for programming
Status = Fapi_issueProgrammingCommand((uint32 *)(Page_Pointer+1),Write_Buffer,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
// Modify Page Status from Blank Page to Current Page if flash programming was successful
if (Status == Fapi_Status_Success)
{
Page_Status[0] = CURRENT_PAGE; // Set Page Status to Current Page
Length = 1; // Set Length for programming status
Status = Fapi_issueProgrammingCommand((uint32 *)Page_Pointer,Page_Status,Length,ECC_PAGE_BUFFER,Length, Fapi_DataOnly);
}
}
//############################ EEPROM_WRITE ##################################
//###################### EEPROM_UPDATE_BANK_STATUS ###########################
void EEPROM_UpdateBankStatus()
{
// Variables needed for Flash API Functions
uint32 Length;
Length = 1; // Set Length for programming
Bank_Status[0] = *(Bank_Pointer); // Read Bank Status from Bank Pointer
Page_Status[0] = *(Page_Pointer); // Read Page Status from Page Pointer
// Program Bank Status for Empty EEPROM
if (Bank_Status[0] == EMPTY_BANK)
{
Bank_Status[0] = CURRENT_BANK; // Set Bank Status to In Use Bank
// Program Bank Status to current bank
Fapi_issueProgrammingCommand((uint32 *)Bank_Pointer,Bank_Status,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
Page_Counter =0;
Page_Pointer = Bank_Pointer + 1; // Set Page Pointer to first page of current bank
}
// Program Bank Status of full bank and following bank
if (Bank_Status[0] == CURRENT_BANK && Page_Counter == 7)
{
Bank_Status[0] = USED_BANK; // Set Bank Status to Used Bank
// Program Bank Status to full bank
Fapi_issueProgrammingCommand((uint32 *)Bank_Pointer,Bank_Status,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
Bank_Pointer +=521; // Increment Bank Pointer to next bank
Bank_Status[0] = CURRENT_BANK; // Set Bank Status to In Use Bank
// Program Bank Status to current bank
Fapi_issueProgrammingCommand((uint32 *)Bank_Pointer,Bank_Status,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
Page_Counter = 0;
Page_Pointer = Bank_Pointer +1; // Set Page Pointer to first page of current bank
}
}
//###################### EEPROM_UPDATE_BANK_STATUS ###########################
//###################### EEPROM_UPDATE_PAGE_STATUS ###########################
void EEPROM_UpdatePageStatus()
{
// Variables needed for Flash API Functions
uint16 Length;
Bank_Status[0] = *(Bank_Pointer); // Read Bank Status from Bank Pointer
Page_Status[0] = *(Page_Pointer); // Read Page Status from Page Pointer
// Check if Page Status is blank. If so return to EEPROM_WRITE.
if(Page_Status[0] == BLANK_PAGE)
return;
// Program previous page's status to Used Page
else
{
Page_Status[0] = USED_PAGE; // Set Page Status to Used Page
Length = 1; // Set Length for programming
Fapi_issueProgrammingCommand((uint32 *)Page_Pointer,Page_Status,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
Page_Pointer +=65; // Increment Page Pointer to next page
}
}
//###################### EEPROM_UPDATE_PAGE_STATUS ###########################
//###################### EEPROM_GET_SINGLE_POINTER ###########################
void EEPROM_GetSinglePointer(uint16 First_Call)
{
uint16 *End_Address;
End_Address = (uint16 *)END_OF_SECTOR; // Set End_Address for sector
if(First_Call == 1) // If this is first call to function, find valid pointer
{
RESET_BANK_POINTER; // Reset Bank Pointer to beginning of sector
while(*(Bank_Pointer) != 0xFFFF) // Test each location for data
Bank_Pointer++; // Increment to next location
}
if(Bank_Pointer >= End_Address) // Test if sector is full
{
EEPROM_Erase(); // Erase flash sector being used as EEPROM
RESET_BANK_POINTER; // Reset Bank Pointer as EEPROM is empty
asm(" ESTOP0");
}
}
//###################### EEPROM_GET_SINGLE_POINTER ###########################
//##################### EEPROM_PROGRAM_SINGLE_BYTE ###########################
void EEPROM_ProgramSingleByte(uint16 data)
{
// Variables needed for Flash API Functions
uint32 Length;
Write_Buffer[0] = data; // Prepare data to be programmed
Length = 1; // Set Length for programming
Fapi_issueProgrammingCommand((uint32 *)Bank_Pointer++,Write_Buffer,Length,ECC_BANK_BUFFER,Length, Fapi_DataOnly);
EEPROM_GetSinglePointer(0); // Test for full sector
}
//##################### EEPROM_PROGRAM_SINGLE_BYTE ###########################
