[BME280] bme280_init() error

[honoju]

Hello,

I am using a BME280 sensor with STM32L476RG microcontroler.

I am having trouble with the bme280_init() function.

In this function, I pass the first null_ptr_check() so dev , dev->read , dev->write and dev->delay_us  are different from NULL.

But just after that when I enter the bme280_get_regs() function, I don't pass the null_ptr_check() whereas my device structure has not changed.

I investigated the matter with a debugger and I found out dev->intf_ptr has changed from BME280_SPI_INTF to BME280_I2C_INT, which I don't understand as there was no redefinition of the device structure.

Could someone help me?

Thanks

[honoju]

Hello Minhwan,

I am having a hard time finding a good logic analyzer. Do you have one who would recommend? I am using stm32 cubeide as ide

Regards,

[Minhwan · Accepted solution]

Hello Honoju, 

Saleae is commonly used for logic analyzer. 

And basically it runs with independent program so that it doesn't matter which IDE you are using 🙂 

Thanks, 

[honoju]

Thanks Minhwan, I'm gonna try that!

[Minhwan]

Please let me know if you have further questions 🙂 

Thanks,