F407 and lis3dsh

[Konstantin Maslennikov]

Posted on February 23, 2018 at 15:01

I'm try use only registers for lis3dsh.

https://community.st.com/external-link.jspa?url=https%3A%2F%2Fgithub.com%2Fmas-kon%2FF407-LIS3DSH

- my code. This code sometimes is worked, but sometimes it stopped. Can any help my?

#cmsis #registers #lis3dsh

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[Andrew Neil]

Posted on February 23, 2018 at 15:17

So what debugging have you done?

[Konstantin Maslennikov]

Posted on February 23, 2018 at 16:08

Anytime funtion 

uint8_t SPI1SendData(uint8_t data)

{

while (!(SPI1->SR & SPI_SR_TXE)){};

SPI1->DR = data;

while (!(SPI1->SR & SPI_SR_RXNE)){};

data = SPI1->DR;

return data;

}

return 0xFF.

:(

Why, I don,t know...

[Bogdan Golab]

Posted on February 23, 2018 at 16:12

Looks like CS (chip select) is not enabled or sensor internal register address embedded in data sent to the sensor is wrong

[Andrew Neil]

Posted on February 23, 2018 at 19:22

Similar question just posted:

https://community.st.com/0D50X00009XkgQkSAJ