GPIO Operations

Yacob Hassidim

Other Parts Discussed in Thread: TMS320C6748

Hello,

The following statement appears in GPIO.h file (c:\Program Files (x86)\Texas Instruments\pdk_C6748_2_0_0_0\biospsp_03_00_01_00\drivers\gpio\include\Gpio.h):

"If the pin is marked as in use, then it shall not be a GPIO and hence GPIO operations shall not be permitted."

What are the "GPIO operations" that are not permitted?

Sincerely,

Yacob Hassidim.

over 12 years ago

0 Sandeep Krishnaswamy over 12 years ago

TI__Expert 7290 points

Hi Yacob,

Yacob Hassidim said:

"If the pin is marked as in use, then it shall not be a GPIO and hence GPIO operations shall not be permitted."

If the hardware/system is using a perticular pin for some other purpose (in case of pin multiplexing), then, the pin is marked as "Gpio_InUse_Yes", to indicate that the pin can not be used as GPIO.

The "Gpio_PARAMS" structure has marked for all the GPIO pins in Gpio.c file. Depending on the requirement, the user can update a perticular pin in the application by accessing "Gpio_PARAMS". Please refer main() function in the example file "drivers\examples\evm6748\gpio\src\gpioSample_main.c".

Regards,

Sandeep

0 Yacob Hassidim over 12 years ago in reply to Sandeep Krishnaswamy

Intellectual 645 points

Hello Sandeep,

Thank you for your answer.

Yuor answer clarifies my question.

I sent another post in 20 Dec.: "TMS320C6748 Development Kit - NDK Example FGDEMO" (http://e2e.ti.com/support/embedded/bios/f/355/p/235030/826021.aspx#826021) .

I replied the following post in 26 Dec. Can you please answer to my post?

I am using the C6748 Dev Kit with CCS Ver 5.

In order to debug the problem I built the NetworkTest as explained in the document spru523_ug.pdf, section 3.3.3.1 "Constructing a Configuration for a static IP and gateway".

Execution of NC_NetStart causes to stop responding of the system.

Can you please advise me?

Sincerely,

Yacob hassidim.

0 Sandeep Krishnaswamy over 12 years ago in reply to Yacob Hassidim

TI__Expert 7290 points

Hi Yacob,

Since I am not familiar with NDK, I am not able to answer it.

Anyway, I have forwarded the post internally to get the help.

Regards,

Sandeep

0 Yacob Hassidim over 12 years ago in reply to Sandeep Krishnaswamy

Intellectual 645 points

Hello Sandeep'

Thank you.

Sincerely,

Yacob Hassidim.

Processors

Processors forum

GPIO Operations