FS6500 DIAG_SPI register at startup

iba1 — Tue, 07 May 2024 19:02:00 GMT

Hi,

Is it normal for the field SPI_REQ of the register DIAG_SPI for the FS6500 to be at 1 after a LPOFF state? This LPOFF state lasts more than 5 seconds lets say because if the return to NORMAL state is done fast with IO_0 for example, the field stays at 0.

This is the case after initializing the chip using the function fs65_init of the driver from NXP. Even before the initialization, this field is still at 1.

Thanks.

Re: FS6500 DIAG_SPI register at startup

guoweisun — Wed, 08 May 2024 05:23:52 GMT

I had replied to your case 00616382 for this topic,please let me know if you still have any issue.

Here I tested the SBC in the LPOFF mode and stay last above 5s then wake up still no found the SPI_RE bit set as '1'.

1: You can check the SPI_RE bit value in normal mode without operate the INIT related registers any more:

2: set command to enter into LPOFF mode,then wake up,read SPI_RE bit again.

3: pay attention that during the INIT phase don't operation others registers except above picture showed five registers,otherwise SPI_RE will set as '1'.

topic FS6500 DIAG_SPI register at startup in Power Management

FS6500 DIAG_SPI register at startup

Re: FS6500 DIAG_SPI register at startup