CC2650EM-4XD-RD: RTOS/CC2650EM-4XS-RD: I2C communication between M41T62 RTC and CC2650

Mahadevanna Shreshthi

Part Number: CC2650EM-4XD-RD
Other Parts Discussed in Thread: CC2650

Hello Experts,

I am currently working on TIMAC - Power management module for cc2650

IAR Workbench version - 7.40.2.8570, TIMAC - 1.5.2, TIRTOS - 2.11.01.09(For SimpleLink Wireless cc 26xx MCUs this is the latest version).

We have M41T62 RTC and connected to SDL and SCL lines of CC2650. Can someone help on the coding part of I2C communication between M41T62 RTC and CC2650

Best regards

--Mahadev

over 5 years ago

0 TER over 5 years ago

TI__Guru**** 317180 points

If the question is about the usage of the I2C driver, see the following E2E post:

https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/611220

If the question is about how you use I2C to communicate with a given sensor with I2C interface we can only give limited help since we don't have the sensor and therefore are not able to test. Please start monitoring the SDL and SDA lines and compare with the M41T62 datasheet.

0 Mahadevanna Shreshthi over 5 years ago in reply to TER

Intellectual 410 points

Hi,

Thanks for your inputs.

I am using I2C driver and started the coding, I am getting the before error.

Error[Li005]: no definition for "I2C_config" [referenced from I2C.orm3(drivers_cc26xxware.arm3)]

Kindly help me to solve this issue.

Thanks

mahadev

0 TER over 5 years ago in reply to Mahadevanna Shreshthi

TI__Guru**** 317180 points

It could sound like you have forgotten to include a header file or a board file definition.

0 Mahadevanna Shreshthi over 5 years ago in reply to TER

Intellectual 410 points

Hi,

Actually we need define to I2C_config where we use it.

for example if used in msa.c the declare
const I2C_Config I2C_config[];

Thanks for the help.

Thanks

Mahadev

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CC2650EM-4XD-RD: RTOS/CC2650EM-4XS-RD: I2C communication between M41T62 RTC and CC2650