topic Re: SBC_FS23 API ：Sbc_fs23_SetWakeupConfig in Power Management

SBC_FS23 API ：Sbc_fs23_SetWakeupConfig

WeiC — Sun, 26 Nov 2023 03:50:22 GMT

In the " CDD_Sbc_fs23.c" file ,API "Sbc_fs23_SetWakeupConfig" has two lines code，as follows：

/*--------------------------------------------------*/

..................................

u16TxData = (u16RxData & (~(SBC_FS23_M_CAN_WUEN_WAKEUP_MASK | SBC_FS23_M_LIN_WUEN_WAKEUP_MASK | SBC_FS23_M_LDT_WUEN_WAKEUP_MASK))) | (*Sbc_fs23_pConfigPtr->Sbc_fs23_WuConfig)[WakeupSettingId].Wu1EnReg;

/*--------------------------------------------------*/

what means about “(u16RxData & (~............))| XxxxCfg.XxxxEnReg"? why not directly use“(u16RxData | XxxxCfg.XxxxEnReg"?

I don't understand the operation of "u16RxData & (~............)".

Re: SBC_FS23 API ：Sbc_fs23_SetWakeupConfig

TomasVaverka — Mon, 27 Nov 2023 08:54:15 GMT

Hi,

By using & (~(………)) we make sure that those configurable wake-up and interrupt enable bits are first zeroed before writing a new value to them.

BR, Tomas

Re: SBC_FS23 API ：Sbc_fs23_SetWakeupConfig

nirmal_masilamani — Tue, 04 Mar 2025 06:01:50 GMT

Hi,

I am using SBC FS23, and I am trying to configure it to CAN Wakeup. But SBC wakeup from LPOFF, with all CAN message.

How to configure it for wake up from particular CAN message? Is there a option available in SBC FS23?