FS4500 wake up

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FS4500 wake up

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ydygcvjhbjkjnkn
Contributor I

Seeking help.

After sending an SPI command to FS4500 to enter LPOFF, the main control chip is powered off, and S32 can see that the simulation stops at this time. After waking up FS4500 through the pin, only power supply is observed, but the code still does not run. What needs to be done to make the code continue to execute?

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guoweisun
NXP TechSupport
NXP TechSupport

看看下面的描述:

When a wake-up event is detected, the device starts the main state machine again by detecting the VPRE configuration (buck or buck-boost), the wake-up source is reported to the dedicated SPI register, and the fail-safe state machine is also restarted.

所以他会再次进入INIT 阶段等待软件程序的配置。

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ydygcvjhbjkjnkn
Contributor I
During debugging, the following phenomena have been encountered:
After initializing the SBC in the code (the process complies with the procedure described in Section 14.1 of AN5238), clicking the software reset and running again may cause the device to be locked.
After executing the SBC sleep command, the board current is detected as 0. When waking up, the current recovers to normal, but the code does not run automatically. What could be the possible causes for these issues?
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guoweisun
NXP TechSupport
NXP TechSupport

不是上封邮件说过了吗?SBC 又开始从初始化开始了,你的软件又要开始配置INIT的寄存器然后退出INIT 状态进入NORMAL模式

或者下载驱动再看看:

FS6500 | Grade 1 and Grade 0 Safety Power System Basis Chip | NXP Semiconductors

 

guoweisun_0-1748314045326.png

 

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