topic Re: Fast Standby Boot Base Address. in S32K

Fast Standby Boot Base Address.

aryandis — Mon, 06 Oct 2025 03:28:30 GMT

Have tried to change linker script for fast standby wakeup but always error. Can you please help me how to update linker for fast standby wakeup support.

Re: Fast Standby Boot Base Address.

danielmartynek — Mon, 06 Oct 2025 07:26:41 GMT

Hi @aryandis,

There are several examples demonstrating the use of Fast Wakeup available here:

https://community.nxp.com/t5/S32K-Knowledge-Base/S32K3-Low-Power-Management-AN-and-demos/ta-p/1527724

These examples are built using RTD 2.0.0. If you plan to run them, I recommend installing a fresh instance of S32 Design Studio 3.4 with only RTD 2.0.0 added. This helps avoid compatibility issues.

Regards,

Daniel

Re: Fast Standby Boot Base Address.

aryandis — Mon, 06 Oct 2025 08:04:19 GMT

all example are based on standby wakeup no fast stadnby wakeup .Do you have any example for RTD 3.0.0 based with linker updated.?

Re: Fast Standby Boot Base Address.

danielmartynek — Mon, 06 Oct 2025 08:57:18 GMT

Hi @aryandis,

The examples have fast wakeup too.

For instance, S32K344_GPIO_Wkup_S32DS_3_4_RTD_LLD_2_0.zip

include/Wkup.h

src/Wkup.c

Linker:

Regards,

Daniel

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Re: Fast Standby Boot Base Address.

aryandis — Tue, 07 Oct 2025 05:51:24 GMT

have configured boot base address 0x00402000 in MCU for standby wakeup and also updating linker with below info.

After adding KEEP(*(.fast_wkup_boot_vector)) in .pflash getting error mentioned above.

How i can adjust size in this linker. ?

Re: Fast Standby Boot Base Address.

aryandis — Tue, 07 Oct 2025 09:44:21 GMT

have configured boot base address 0x00402000 in MCU for standby wakeup and also updating linker with below info.

After adding KEEP(*(.fast_wkup_boot_vector)) in .pflash getting error mentioned above.

How i can adjust size in this linker. ?

Re: Fast Standby Boot Base Address.

danielmartynek — Tue, 07 Oct 2025 11:18:43 GMT

HEllo @aryandis,

Can you share the linker file here?

You can adjust the size of each SRAM section as needed, but the total combined size of all sections must not exceed the actual SRAM capacity.

BR, Daniel

Re: Fast Standby Boot Base Address.

aryandis — Wed, 08 Oct 2025 03:29:10 GMT

reference from example mentioned in this link.

https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K312-STANDBY-wake-up-using-RTC-DS3-5-RTD300/ta-p/1930115

Re: Fast Standby Boot Base Address.

aryandis — Wed, 08 Oct 2025 03:32:50 GMT

can you lease also share me what configuration i have to do for fast standby wakeup. since i have used some of the reference and have done for fast standby wakeup

Re: Fast Standby Boot Base Address.

danielmartynek — Wed, 08 Oct 2025 08:07:01 GMT

Hello @aryandis,

All the necessary steps are demonstrated in the provided examples.
To enable Fast Wakeup, you must configure the boot address, which sets the entry point after wakeup.
This configuration is done by writing to the DCMRWF5 register, where you specify the base address of your custom vector table in standby SRAM and enable the Fast Wakeup mechanism.

BR, Daniel

Re: Fast Standby Boot Base Address.

aryandis — Wed, 08 Oct 2025 08:57:19 GMT

have done this configuration but still no wakeup is working.

Re: Fast Standby Boot Base Address.

danielmartynek — Wed, 08 Oct 2025 09:22:17 GMT

What about normal wake-up, does it work?

I would recommend that you create a support ticket and share the whole project there privately so that I can test it.

BR, Daniel

Re: Fast Standby Boot Base Address.

aryandis — Wed, 08 Oct 2025 11:25:23 GMT

standby wakeup working but i need for for faststadnby wakeup .

here i have done memory map.

.fast_wakp_boot_vector

0x20400000 0x0c load address 0x00402000

0x20400000 .= ALIGN(0x1000)

Re: Fast Standby Boot Base Address.

danielmartynek — Thu, 09 Oct 2025 07:49:04 GMT

Hello @aryandis,

Please create a support ticket and share you project (privately) so that I can test it.

Thank you

Re: Fast Standby Boot Base Address.

aryandis — Fri, 10 Oct 2025 07:23:06 GMT

have one requirement i want to do GPIO/CAN/RTC wakeup wakeup once it enter in sleep mode (which operating mode have to refer CORE_STADNBY ,STANDBY or FAST STANDBY or something else). after wakeup it should go to ISR and from ISR i can call EcuM_Checkwakeup for wakeup system.

Please guide me with configuration for RTD 3.0.0 .

Re: Fast Standby Boot Base Address.

danielmartynek — Fri, 10 Oct 2025 08:37:16 GMT

Can you please create a new community thread for the last question?

Regarding the fast wake-up, I would need to test your project - ideally through a support ticket.

Regards,

Daniel