RTOS/CC1310: How to read the bmp280 data via i2c interface by coding Code Composer Studio?

You Yun Chou

Part Number: CC1310

Tool/software: TI-RTOS

Hello,

I have try to read BMP280 pressure sensor on CC1310 through I2C with code composer studio.

I already read the reference about I2C example TMP007 (ti\simplelink_cc13x0_sdk_2_20_00_38\examples\rtos\CC1310_LAUNCHXL\drivers\i2ctmp007)

and I2C example BME280 (ti\sail_1_20_00_02\examples\rtos\CC1310_LAUNCHXL\sail\i2cbme280).

Because BMP280 and BME280 are almost the same, I try to change the code to make BMP280 work.

I already change some memory map from the datasheet, but I still can't get anything from BMP280.

I've already change chipID from 0x60 to 0x58.

I also try to use the source from ti\simplelink_cc13x0_sdk_1_60_00_21\source\ti\mw\sensors, but I fail.

I can't get any data from BMP280.

What should I do ?

Thank you!

Best regards.

over 6 years ago

0 AB over 6 years ago

TI__Mastermind 22976 points

Hello You,

I would first recommend to upgrade to SD version 2.2

You can include the sail sensor driver into the project instead of including them and make all changes locally on the project.

Regards,
AB

0 You Yun Chou over 6 years ago in reply to AB

Intellectual 370 points

Hello AB,

I already try the example BME280, but I still can't get any data from BMP280.

Is the sail sensor driver have another for BMP280?

Best Regards,

You-Yun

0 Tomasz Kocon over 6 years ago in reply to You Yun Chou

Guru 26200 points

Hello You,

have you tried to debug?
Any ACK from BMP280?
According to specs you have provided, BME280 supports some filtering features.
Both chips could be configured in incompatible ways.
I would recommend you to carefully check BME280 code using a debugger.

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RTOS/CC1310: How to read the bmp280 data via i2c interface by coding Code Composer Studio?