using of F035 flash library and freertos together

Dmitry Shapovalov

Other Parts Discussed in Thread: HALCOGEN

is it possible, to use f035 flash library together with freertos ?

for now i am trying to switch to the privileged mode and call Flash_Compact_B.

and somewhere inside "setup_state_machine" function, dataEntry interrupt occurs.

    BOOL ret = 0;
    FLASH_STATUS_ST status;
    portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
    ret = Flash_Compact_B((UINT32*)0x00180000, FLASH_CORE3,FLASH_SECT0,80,(FLASH_ARRAY_ST)0xfff87000,&status);
    portRESET_PRIVILEGE( xRunningPrivileged );

P.S. my cpu in tms570ls20216szwt, halcogen 03.08.01, f035 library v1.09

over 11 years ago

0 Jean-Marc Mifsud over 11 years ago

TI__Mastermind 22375 points

Dmitry,

Which device are you using?

One point to remember is, you cannot execute and compact/erase/program from the same bank.
You are running FreeRtos, so the Bank0 Sector0 will be accessed by FreeRtos (Exception table)
Based on this statement, you will not be able to use the FLASH API to work on bank0.

Usually, the FLASH API is loaded in RAM and run in RAM to bypass this limitation.

0 Dmitry Shapovalov over 11 years ago in reply to Jean-Marc Mifsud

Prodigy 140 points

Thanks for the quick reply !

I am using tms570ls20216szwt in my own device. as you can see in my example i am using the last bank (FLASH_CORE3), and additionally, this bank is excluded from "SECTIONS" of linker script. сan I work in this configuration without loading into memory?

0 Siddharth Deshpande over 11 years ago in reply to Dmitry Shapovalov

TI__Mastermind 35665 points

Hi Dmitry,

Is this code being executed from RAM or Flash Bank 0?

The setup_state_machine function must be executed from RAM only.

Best Regards,

Siddharth

0 Dmitry Shapovalov over 11 years ago in reply to Siddharth Deshpande

Prodigy 140 points

Hello,

code executes from Flash. where I can get an example of how to execute it from RAM ?

Thanks.

0 Siddharth Deshpande over 11 years ago in reply to Dmitry Shapovalov

TI__Mastermind 35665 points

Hello Dmitry,

You can refer to the following post http://e2e.ti.com/support/microcontrollers/hercules/f/312/p/62954/227583.aspx#227583

This provides an example linker command file that would put the Flash API in Flash but run it from RAM.

It also provides an example code to copy the Flash API to RAM.

Best Regards,

Siddharth

0 Dmitry Shapovalov over 11 years ago in reply to Siddharth Deshpande

Prodigy 140 points

it seems that this does not work.

here is my linker script.

/*----------------------------------------------------------------------------*/
/* sys_link_freeRTOS.cmd                                                      */
/*                                                                            */
/* (c) Texas Instruments 2009-2013, All rights reserved.                      */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN (0) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Linker Settings                                                            */

--retain="*(.intvecs)"

/* USER CODE BEGIN (1) */
/* USER CODE END */

/*----------------------------------------------------------------------------*/
/* Memory Map                                                                 */

MEMORY
{
    VECTORS (X)  : origin=0x00000000 length=0x00000020
    KERNEL  (RX) : origin=0x00000020 length=0x00008000 
    FLASH0  (RX) : origin=0x00008020 length=0x00077FE0
    FLASH1  (RX) : origin=0x00080000 length=0x00080000
    FLASH2  (RX) : origin=0x00100000 length=0x00080000
    FLASH3  (RX) : origin=0x00180000 length=0x00080000
    STACKS  (RW) : origin=0x08000000 length=0x00001500
    KRAM    (RW) : origin=0x08001500 length=0x00000800
	RAM     (RW) : origin=(0x08001500+0x00000800) length=(0x00026b00 - 0x00000800)
	
/* USER CODE BEGIN (2) */
/* USER CODE END */
}

/* USER CODE BEGIN (3) */
#if 0
/* USER CODE END */

/*----------------------------------------------------------------------------*/
/* Section Configuration                                                      */

SECTIONS
{
    .intvecs : {} > VECTORS
    /* FreeRTOS Kernel in protected region of Flash */
    .kernelTEXT   : { sys_startup.obj(.const)
    				  os_tasks.obj (.const:.string)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<auto_init.obj> (.text)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_decompress_rle.obj> (*)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<cpy_tbl.obj> (*)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_zero_init.obj> (*)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_decompress_none.obj> (*)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<icall32.obj> (.text)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<memset32.obj> (.text)
    				  -l=rtsv7R4_T_be_v3D16_eabi.lib<memcpy32.obj> (.text)
    				} > KERNEL
    .cinit        : {} > KERNEL
    .pinit        : {} > KERNEL
	/* Rest of code to user mode flash region */
    .text         : {} > FLASH0 | FLASH1 | FLASH2 | FLASH3
    .const        : {} > FLASH0 | FLASH1 | FLASH2 | FLASH3
	/* FreeRTOS Kernel data in protected region of RAM */
    .kernelBSS    : {} > KRAM
    .kernelHEAP   : {} > RAM
    .bss          : {} > RAM
    .data         : {} > RAM	
	
/* USER CODE BEGIN (4) */
#endif
SECTIONS
{
    .intvecs : {} > VECTORS
    /* FreeRTOS Kernel in protected region of Flash */
    .kernelTEXT   : { sys_startup.obj(.const)
                      os_tasks.obj (.const:.string)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<auto_init.obj> (.text)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_decompress_rle.obj> (*)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<cpy_tbl.obj> (*)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_zero_init.obj> (*)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<copy_decompress_none.obj> (*)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<icall32.obj> (.text)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<memset32.obj> (.text)
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<memcpy32.obj> (.text)
                    } > KERNEL
    .cinit        : {} > KERNEL
    .pinit        : {} > KERNEL
    /* Rest of code to user mode flash region */
    .text         : {} > FLASH0 | FLASH1 | FLASH2
    .const        : {} > FLASH0 | FLASH1 | FLASH2

    .flashapi : load = FLASH1, run = RAM, LOAD_START(FlashApi_LoadStart), LOAD_END(FlashApi_LoadEnd), LOAD_SIZE(FlashApi_LoadSize), RUN_START(FlashApi_RunStart), RUN_END(FlashApi_RunEnd), RUN_SIZE(FlashApi_RunSize),
    {
        pf035a_api_eabi.lib (.text)
    }
    /* FreeRTOS Kernel data in protected region of RAM */
    .kernelBSS    : {} > KRAM
    .kernelHEAP   : {} > RAM
    .bss          : {} > RAM
    .data         : {} > RAM    

/* USER CODE END */
}

/* USER CODE BEGIN (5) */
/* USER CODE END */

/*----------------------------------------------------------------------------*/
/* Misc                                                                       */

/* USER CODE BEGIN (6) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/

it gives a warning

"../halcogen/source/sys_link.cmd", line 82: warning #10068-D: no matching section
<Linking>
Finished building target: new_mu.out
 
Create flash image: Intel-HEX
"/opt/ti/ccsv5/tools/compiler/arm_5.1.1/bin/armhex" -i "new_mu.out" -o "new_mu.hex" -order MS -romwidth 32
Translating to Intel format...
   "new_mu.out"   ==> .intvecs
   "new_mu.out"   ==> .kernelTEXT
   "new_mu.out"   ==> .cinit
   "new_mu.out"   ==> .text
   "new_mu.out"   ==> .const
 
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<icall32.obj> (.text)
"../halcogen/source/sys_link.cmd", line 83: warning #10068-D: no matching section
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<memset32.obj> (.text)
"../halcogen/source/sys_link.cmd", line 84: warning #10068-D: no matching section
                      -l=rtsv7R4_T_be_v3D16_eabi.lib<memcpy32.obj> (.text)
"../halcogen/source/sys_link.cmd", line 94: warning #10068-D: no matching section
        pf035a_api_eabi.lib (.text)

**** Build Finished ****

it seems that the section didn't even get created.

if i print FlashApi_LoadStart,FlashApi_LoadEnd,FlashApi_LoadSize

printf("start: %p\n", (char *)&FlashApi_LoadStart);
printf("run: %p\n", (char *)&FlashApi_RunStart);
printf("size: %i\n", (unsigned int)&FlashApi_LoadSize);

i get

start: 8001d00
run: 8001d00
size: 0

so the load function does not work either...

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halcogen 03.08.01

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using of F035 flash library and freertos together