CC2640: Sensor to CC2640

Srinivas H

Part Number: CC2640

Hi all,

I am using CC2640 as wireless network processor, connected to an existing MCU over UART. I want to connect an analog sensor to CC2640's sensor controller (which has 8 Analog GPIOs, read in Data Sheet).

Could any one please help me how the data flows from sensor to MCU. It is written in data sheet that, communication (sensor reading and debugging) happens over UART. Already i am having a stable connection between CC2640 and MCU for transferring HCI commands. Is it possible to use the sensor attached to CC2640 and get data from it without disturbing my existing UART connection for HCI commands.

Thank you in advance :)

over 6 years ago

0 Christin Lee over 6 years ago

TI__Guru 56345 points

Hi,

We have a SimpleLink Academy training for sensor controller. Please take a look at this training.
software-dl.ti.com/.../overview.html

0 Srinivas H over 6 years ago in reply to Christin Lee

Intellectual 540 points

Hi Lee,

I have followed the tutorials in the training. They are useful. And i am able to connect the sensor and the values are visible in Task Testing Graph and buffer.

But, i have a problem. I am missing some ADC values. As of now, i am using ADC_SAMPLE_TIME_2P7_US (2.7uS) and RTC Period as 20 milli seconds. Is it not fast enough to capture all the values?
And is there any possibility of using DMA with Sensor controller, so that i can transfer the sensor values to the system memory and can access from core M3 application.

Please help me :)

0 Christin Lee over 6 years ago in reply to Srinivas H

TI__Guru 56345 points

There is limitation on Task Testing function, it's kinda slow. You should verify by actually running the code or do run time logging.

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CC2640: Sensor to CC2640