RTOS/CC1310: Store date into Flash memory

nikhil asukar

Part Number: CC1310

Tool/software: TI-RTOS

Hello,

I am using to Transmit and receive data using CC1310 chip in Frequency hopping mode. For that, I am using Collector example from simplelink_cc13x0_sdk_2_40_00_20. The attached image shows the memory allocation of my firmware.

I also need to store some data into Flash memory to use in my application. I am using the following code to store the data into the flash

#define SECTOR_SIZE                4096
#define SECTOR_TO_ERASE            30
#define SECTOR_TO_ERASE_START_ADDR (FLASHMEM_BASE + (SECTOR_TO_ERASE * SECTOR_SIZE))


#pragma NOINIT(flashDataAddr)
#pragma location = 0x1D400
char flashDataAddr[SECTOR_SIZE];

void writeToFlash(uint8_t buffer[])
{
    int32_t result;
    int32_t i;

    /* Disable the cache */
    VIMSModeSet(VIMS_BASE, VIMS_MODE_DISABLED);
    while(VIMSModeGet(VIMS_BASE) != VIMS_MODE_DISABLED);

    /* Make sure that sector isn't write protected. */
    result = FlashProtectionGet(SECTOR_TO_ERASE_START_ADDR);
    if(result == FLASH_WRITE_PROTECT)
    {
        while (1);
    }

    /* Disable all interrupts when accessing the flash */
    CPUcpsid();

    /* Erase a flash Page */
    result = FlashSectorErase(SECTOR_TO_ERASE_START_ADDR);

    if(result != FAPI_STATUS_SUCCESS)
    {
        while (1);
    }

    /* Program 128 bytes in chunks of 8 bytes */
    for( i = 0; i < 128; i += 8)
    {
        /* Write to flash */
        result = FlashProgram(&buffer[i], SECTOR_TO_ERASE_START_ADDR + i, 8);

        if(result != FAPI_STATUS_SUCCESS)
        {
            while (1);
        }
    }

    CPUcpsie();

    /* Re-enable the cache */
    VIMSModeSet(VIMS_BASE, VIMS_MODE_ENABLED);
}

but while shoring the data into the flash my application is going into the Main_assertHandler

over 6 years ago

0 TER over 6 years ago

TI__Guru**** 317180 points

Is it any reason why you are not using the NVS driver to do this?

0 nikhil asukar over 6 years ago in reply to TER

Intellectual 485 points

Hello TER,

I didn't know about NVS driver. Where can I find more information about it

0 TER over 6 years ago in reply to nikhil asukar

TI__Guru**** 317180 points

Check the example here: http://dev.ti.com/tirex/explore/node?node=AJM151SDfQN498yXCptbUQ__eCfARaV__LATEST

and the driver documentation: http://dev.ti.com/tirex/explore/node?node=AOng5xFsavzvQ16.KytQHg__eCfARaV__LATEST

0 nikhil asukar over 6 years ago in reply to TER

Intellectual 485 points

Hello TER

I am using below code to write data into NVS in My collector example

static void SaveDateIntoNVS(void)
{
    NVS_Handle nvsHandle;
     NVS_Attrs regionAttrs;
     NVS_Params nvsParams;


     NVS_init();

     NVS_Params_init(&nvsParams);
     nvsHandle = NVS_open(Board_NVSINTERNAL, &nvsParams);

     if (nvsHandle == NULL)
     {

     }


     /*
      * This will populate a NVS_Attrs structure with properties specific
      * to a NVS_Handle such as region base address, region size,
      * and sector size.
      */
     NVS_getAttrs(nvsHandle, &regionAttrs);

     /* Erase the entire flash sector. */
     NVS_erase(nvsHandle, 0, regionAttrs.sectorSize);

     /* Write signature to memory. The flash sector is erased prior
      * to performing the write operation. This is specified by
      * NVS_WRITE_ERASE.
      */
     NVS_write(nvsHandle, 0, (void *) signature, sizeof(signature),
         NVS_WRITE_ERASE | NVS_WRITE_POST_VERIFY);
}

But I am getting following errors. My firmware Flash memory allocation is given in my previous post

#10010 null: errors encountered during linking; "collector_CC1310_LAUNCHXL_tirtos_ccs.out" not built collector_CC1310_LAUNCHXL_tirtos_ccs C/C++ Problem
# program will not fit into available memory. placement with alignment fails for section ".text" size 0x197ac . Available memory ranges: cc13x0lp.cmd /collector_CC1310_LAUNCHXL_tirtos_ccs line 78 C/C++ Problem
gmake: *** [all] Error 2 collector_CC1310_LAUNCHXL_tirtos_ccs C/C++ Problem
gmake[1]: *** [collector_CC1310_LAUNCHXL_tirtos_ccs.out] Error 1 collector_CC1310_LAUNCHXL_tirtos_ccs C/C++ Problem

0 nikhil asukar over 6 years ago in reply to nikhil asukar

Intellectual 485 points

Hello TER,

is there any update regarding my previous post. It is very urgent.

0 TER over 6 years ago in reply to nikhil asukar

TI__Guru**** 317180 points

It looks like you are running out of memory. How much data are you trying to write? Have you checked that the writing to flash code works if you add this to the empty example (which has a lower footprint)

0 nikhil asukar over 6 years ago in reply to TER

Intellectual 485 points

I need to write 400 bytes of data into the flash. I tried the above code in empty example and also in the interrupt example the code is working fine.

0 TER over 6 years ago in reply to nikhil asukar

TI__Guru**** 317180 points

How much free memory do you have before adding NVS to your project and how much space does the storing of the variables using NVS take when you add them in the empty example (check the .map files)

0 nikhil asukar over 6 years ago in reply to TER

Intellectual 485 points

Below is the memory allocation of empty example before and after NVS implementation

Empty example Before NVS implementation

Empty example After NVS implementation

The Memory allocation of my project before adding NVS is given below, around 6K memory is free

0 TER over 6 years ago in reply to nikhil asukar

TI__Guru**** 317180 points

I looked at this from a general point of view but if you are using the 15.4 stack, this applies http://dev.ti.com/tirex/content/simplelink_cc13x0_sdk_3_20_00_23/docs/ti154stack/html/ti154stack/application-overview.html#non-volatile-memory when it comes to using NV memory.

Anyway it looks like you are using too much flash and you need to look into what you are using and if it's something that could be removed from the code to save space.

0 nikhil asukar over 6 years ago in reply to TER

Intellectual 485 points

Hello TER,

Thank you for your response and suggestions,

Considering your Suggestion, In collector code which we have used as a reference, We have just enabled the frequency hopping mode and disabled all other modes,

Apart from this, we have added a task which handles UART Tx/Rx functionality which communicates with external devices.

I have already kept the minimum code to handle UART functionality,

Now, If it is possible I want to reduce the Collector code as in the code I am just using frequency hopping functionality in that code.

However, I am not able to understand how I can do this.

Please help me with this to reduce the collector code part so that I can reduce code size,

Thanks and Regards

Nikhil

0 AB over 6 years ago in reply to nikhil asukar

TI__Mastermind 23636 points

You have two options here:

upgrade to a CC1312 device (increased memory)

decrease memory consumption

to do the latter you will need to compress and reduce the amount of information you save in flash and/or start removing some of the application code (I would start by reducing the code in csf.c and csf.h and anything in the board drivers - lcd, gpio, etc...).

Another option would be to use external flash for this information. You have an external flash on the launchpad you can use.

Sub-1 GHz

Sub-1 GHz forum

RTOS/CC1310: Store date into Flash memory