CC2640R2F: Factory Reset Image?

Hi Kel,

I am not sure exactly what you are after here. From 4) it sounds like you want to use the internal Watchdog timer?

Cheers,
Fredrik

Hi Fredrik,

I have read the Off-Chip OAD Guide. It says this below regarding the Factory Reset Image.

EFL_OAD_IMG_TYPE_FACTORY - Describes the permanently resident production image that runs on the device before any OTA updates.

Meaning that I should flash the factory reset image to External Flash before I do Off-Chip OAD. But, at the Off-Chip OAD Guide, there is no mention how to generate a Factory Reset Image or EFL_OAD_IMG_TYPE_FACTORY. That is why I ask how to generate the Factory Reset Image. Do I need to modify the Post Build Script below in order for the image to be Factory Reset Image?

${CG_TOOL_HEX} -order MS --memwidth=8 --romwidth=8 --intel -o ${ProjName}.hex ${ProjName}.out
${TOOLS_BLE_DIR}/oad/oad_image_tool ${ProjName}.hex -t offchip -i app --imgVer 0 -ob ${ProjName}.bin -m 0x0000 --r 0x0000

I am asking this because I need to define the procedure for flashing firmware to our CC2640R2F Product, which will support Off-Chip OAD. After flashing BIM, App, and Stack, It seems I need to flash also the Factory Reset Image at External Flash. Do I flash the Reset Image at External Flash using SmartRF Flash Programmer 2 or through OAD. There is no mention about this at Off-Chip OAD Guide.

- kel

Hi,

   I have answered my own questions 1 and 2 reviewing the Off-Chip OAD example program.

   For my question 3 "How to invoke or execute a Factory Reset Image? It seems that I can use the C function SensorTagFactoryReset_applyFactoryImage() from the CC2650 SensorTag project. But, I don't understand how the "Load and launch factory image" code works. Can anyone explain to me?

void SensorTagFactoryReset_applyFactoryImage(void)
{
    SensorTagDisplay_suspend();

    if (SensorTagFactoryReset_hasImage())
    {
        // Indicate that factory image is launched
#ifdef IOID_GREEN_LED
        PIN_setOutputValue(hGpioPin, IOID_GREEN_LED, Board_LED_ON);
#endif
        // Load and launch factory image; page 0 and 31 must be omitted
        ((void (*)(uint32_t, uint32_t, uint32_t))BL_OFFSET)
            (EFL_ADDR_RECOVERY + APP_START, // Location in external flash
             EFL_SIZE_RECOVERY - 0x2000,    // Length
             APP_START);                    // Location in internal flash
    }
    else
    {
        // Indicate that factory image launch failed
        PIN_setOutputValue(hGpioPin, IOID_RED_LED, Board_LED_ON);
    }

    SensorTagDisplay_resume();
}

- kel