LAUNCHXL-CC26X2R1: UART2 error in MT implementation

Panagiotis Pyrgas

Hello,

I am trying to implement the MT interface in my project. I followed the instructions provided by TI but when I compile the project, the following errors appear

1. Description Location Path Type Resource
unresolved symbol UART2_config, first referenced in C:/ti/simplelink_cc13xx_cc26xx_sdk_6_10_00_29/source/ti/drivers/lib/ccs/m4f/drivers_cc26x2.a<UART2CC26X2.oem4f> C/C++ Problem ZC_SW_TEST

2. Description Location Path Type Resource
unresolved symbol UART2_count, first referenced in C:/ti/simplelink_cc13xx_cc26xx_sdk_6_10_00_29/source/ti/drivers/lib/ccs/m4f/drivers_cc26x2.a<UART2CC26X2.oem4f> C/C++ Problem ZC_SW_TEST

The only way that I found to bypass these errors is to enable both UART and UART2 in syscfg instead of only UART. Is this something that is supposed to happen? If not, how can I fix it?

I am using the zc_switch example and haven't changed anything except the MT implementation.

I am also using simplelink_cc13xx_cc26xx_sdk_6_10_00_29.

over 3 years ago

+1 Ryan Brown1 over 3 years ago

TI__Guru**** 218567 points

Hello Panagiotis,

This has bee resolved in prior E2E threads:

https://e2e.ti.com/f/1/t/1108598
https://e2e.ti.com/f/1/t/1107235

Regards,
Ryan

0 Panagiotis Pyrgas over 3 years ago in reply to Ryan Brown1

Intellectual 320 points

I have already done it like this

and let UART2 on without using it anywhere

If I delete UART2 I will have the errors mentioned above.

Am I fine with the way it is?

Will I have any problems?

+1 Ryan Brown1 over 3 years ago in reply to Panagiotis Pyrgas

TI__Guru**** 218567 points

UART2 is used for the CUI of the zr_sw application, meaning the terminal interface which can be used to interact with the application. There still exists some possibility that it is included or referred in the UI code. It does not apply to genericapp examples since the CUI is disabled.

Regards,
Ryan

0 Panagiotis Pyrgas over 3 years ago in reply to Ryan Brown1

Intellectual 320 points

I tested it by enabling CUI_DISABLE and removing UART2 from sysconfing and it didn't give me any errors, but since I use MT interface I have to disable CUI_DISABLE as per the instructions so I will keep it like this.

Thank you for your help!!!

0 Panagiotis Pyrgas over 3 years ago in reply to Ryan Brown1

Intellectual 320 points

Is there a way to enable CUI_DISABLE without affecting MT Interface?

0 Ryan Brown1 over 3 years ago in reply to Panagiotis Pyrgas

TI__Guru**** 218567 points

The CUI is not designed to affect the MT interface, the overlap is that both use UART peripherals. You will thus need to manage UART resources correctly.

Regards,
Ryan

0 Panagiotis Pyrgas over 3 years ago in reply to Ryan Brown1

Intellectual 320 points

Since it's not affecting the MT interface, can I remove the UI using this Optimizing Flash and RAM Usage of Z-Stack 3.0.2 for the CC2530 Device (or find a guide for my own board) and remove xCUI_DISABLE from predefined symbols without having any problems?

0 Ryan Brown1 over 3 years ago in reply to Panagiotis Pyrgas

TI__Guru**** 218567 points

You can investigate removing all CUI files from the application, at which point you could consider modifying genericapp or sampleapp projects since neither include the CUI by default. A CC253X guide is going to do you little or no good considering you are using the SimpleLink CC26X2 platform instead.

Regards,
Ryan

Zigbee & Thread

Zigbee & Thread forum

LAUNCHXL-CC26X2R1: UART2 error in MT implementation