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L9663 Configuration

mochensama
Associate

我的 L9663 SPI 无法正常工作,我想通过寄存器读取L9663的设备ID,但接收回来都是0XFFFF。我现在使用的MCU是STM32F103C8T6,以下是我的计划,希望大佬们帮我看一下有没有问题。

9ed9e1351aa588f1d3a73b2a1951397.png

2 REPLIES 2
SofLit
ST Employee

Translation:

My L9663 SPI is not working properly. I want to read the device ID of L9663 through the register, but the received data is 0XFFFF. The MCU I am using now is STM32F103C8T6. The following is my plan. I hope you can help me check if there is any problem.

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lowPassFilter
Associate II

@mochensama , Hi, have you solved your problem? I designed the circuit with reference to spec, if you use PSI5-P mode, you shouldn't pull up BH1 of pin8, right? Also are you using 5V for VASSUP? I feel like it's usually with a higher voltage, right?

 

This post has been translated from Chinese to comply with the ST Community guidelines.