Application Update in AB Swap configuration - HSE

[sandor_b]

Hi all,

I try to follow the 11.5 Application update (AB_SWAP) chapter of HSE-B Firmware Reference Manual. And I get stuck at the first sentence:  "Programming the new application image in the passive partition". 

My question is that: how to program the passive partition from S32 Design studio? All I see in the examples was something like this: Program the active partition -> copy it to the passive -> Request the HSE for active / passive partition swapping -> reset.

Can I directly program the passive partition from  or should I do something like this.:

1. Switch A-> B
2. reset
3. Program B
4. Switch B -> A
5. reset

Or should I create a linker file to the passive area and program it? 

...
MEMORY {
    int_pflash              : ORIGIN = 0x00600000, LENGTH = 0x003D4000    /* BLOCK 2 ; 4096KB - 176KB (sBAF + HSE)*/
    int_dflash              : ORIGIN = 0x10000000, LENGTH = 0x00020000    /* 128KB */
    int_itcm                : ORIGIN = 0x00000000, LENGTH = 0x00010000    /* 64KB */
    int_dtcm                : ORIGIN = 0x20000000, LENGTH = 0x0001F000    /* 124KB */
    int_stack_dtcm          : ORIGIN = 0x2001F000, LENGTH = 0x00001000    /* 4KB */
    int_sram                : ORIGIN = 0x20400000, LENGTH = 0x0002FF00    /* 184KB, needs to include int_sram_fls_rsv */
    int_sram_fls_rsv        : ORIGIN = 0x2042FF00, LENGTH = 0x00000100
    int_sram_no_cacheable   : ORIGIN = 0x20430000, LENGTH = 0x0000FF00    /* 64KB, needs to include int_sram_results  */
    int_sram_results        : ORIGIN = 0x2043FF00, LENGTH = 0x00000100
    int_sram_shareable      : ORIGIN = 0x20440000, LENGTH = 0x00004000    /* 16KB */
    ram_rsvd2               : ORIGIN = 0x20444000, LENGTH = 0             /* End of SRAM */
}
...

Thanks in advance

Regards,
Sandor 

[anita_maliverne]

Hello Sandor,

to prepare the new application in the passive partition you can can directly program the higher address range to which the passive are is mapped to with the new code with the help of an uploader function in your existing application  .  On the K344 it would be addresses 0x0060_0000 onwards. Due to the automatic address translation the passive partition is always mapped to this higher address range , independant which physical block it is.

The method with the linker file is relevant, if you wnt to update for example the AB Swap firmware itself with a new FW image. This can be done by definition of a memory section for the new pink image as shown below.  But his is not relevant when you update the passive area with the new application version.

Hope this helps

[sandor_b]

Hi Anita.

Thanks for your reply

Can yo check my solution and train of thought.

So I try to do this:

1. Install S32K344 HSE FW 0.2.40.0 SR Release with S32K344_HSE_FW_INSTALL provided by NXP

2. Reset 2 times (Power Off - Power On)

3. Flash my application and start debug

4. Reset

5. Try to reattach

My Application

I used HSE_FW_S32K344_0_2_40_0 and the following files form S32K3_HSE_DemoExamples_1_0_0: hse_host.h, hse_host.c, hse_mu.h, hse_mu.c.

Linker file:

...
MEMORY
{
    int_pflash              : ORIGIN = 0x00400000, LENGTH = 0x001D4000    /* 2048KB - 176KB (sBAF + HSE)*/
    int_pflash_passive      : ORIGIN = 0x00600000, LENGTH = 0x001D4000    /* 2048KB - 176KB (sBAF + HSE)*/
    int_dflash              : ORIGIN = 0x10000000, LENGTH = 0x00020000    /* 128KB */
    int_itcm                : ORIGIN = 0x00000000, LENGTH = 0x00010000    /* 64KB */
    int_dtcm                : ORIGIN = 0x20000000, LENGTH = 0x0001F000    /* 124KB */
    int_stack_dtcm          : ORIGIN = 0x2001F000, LENGTH = 0x00001000    /* 4KB */
    int_sram                : ORIGIN = 0x20400000, LENGTH = 0x0002FF00    /* 184KB, needs to include int_sram_fls_rsv */
    int_sram_fls_rsv        : ORIGIN = 0x2042FF00, LENGTH = 0x00000100
    int_sram_no_cacheable   : ORIGIN = 0x20430000, LENGTH = 0x0000FF00    /* 64KB, needs to include int_sram_results  */
    int_sram_results        : ORIGIN = 0x2043FF00, LENGTH = 0x00000100
    int_sram_shareable      : ORIGIN = 0x20440000, LENGTH = 0x00004000    /* 16KB */
    ram_rsvd2               : ORIGIN = 0x20444000, LENGTH = 0             /* End of SRAM */
}
...

TARGET(binary) /* specify the file format of binary file */
INPUT (C:\Projects\Torc\AB_SWAP\bhutorc-adl-mcu-evb\source\adl-main-D_52c6b06a.bin) /*Temporary dummy path*/
OUTPUT_FORMAT(default) /* restore the out file format */

SECTIONS
{
...

    .new_application_image :
      {
        . = ALIGN (0x4);
        __new_application_image_start__ = .;
        C:\Projects\Torc\AB_SWAP\bhutorc-adl-mcu-evb\source\adl-main-D_52c6b06a.bin /*Temporary dummy path*/
        . = ALIGN (0x4);
        __new_application_image_end__ = .;
      } > int_pflash_passive

...

• The pflash was split into A and B partitions

• A binary file was created for testing purpose:

  • the binary file has only only A partition of the pflash

main function

...
    (void)HSE_GetVersion_Example(&gHseFwVersion);
...
    pHseSrvDesc->srvId = HSE_SRV_ID_ACTIVATE_PASSIVE_BLOCK;
    srvResponse = HSE_Send(MuInstance, MuChannel, gSyncTxOption, pHseSrvDesc);
...

• HSE_SRV_ID_ACTIVATE_PASSIVE_BLOCK serviceis called

• It seems to work because if flash my image after a reset the DCMOTAR value of DCMSTAT (0x402AC000) register changed to 1 → 0

• Before reset:
• 

• After reset
• 

• 

Problems

• If I try to get the HSE FW version I’ve got the following return value: HSE_SRV_RSP_INVALID_ADDR (0x55a5a26a)

• If I attach right after a reset an I try to push the suspend button I’ve got Interrupt Failer error message:

• 

Questions:

1. Is the thought process I'm following good or completely wrong?
2. How can I attach to the device with S32 device studio after an A/B SWAP?
3. How can I test if the app update was successful?