AM2432: Digital output is not working

Tomoya Oyama

Intellectual 330 points

Part Number: AM2432
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi team,

I'm developing mcu plus sdk / gpio_led_blink.c with AM2432.

I assign pins SPI0_CS1, SPI0_CLK, SPI0_D0 and SPI0_D1 as Digital output.

When I added these pins to TI DRIVERS GPIO of example.syscfg, it caused error.

Then I added these pins to Reserve Peripherals GPIO, and changed pin direction to 0 by GPIO_setDirMode().

but no output from these pins.

Could you tell me, why I can't add pins to TI DRIVERS GPIO of example.syscfg, and How to use SPI0 pins as GPIO.

Best regards,

oyama

7 months ago

0 Meet Thakar 7 months ago

TI__Genius 10595 points

Hi Tomoya-San,

The expert is out of office and will be back by friday next week, please expect some delay in the reply.

Best Regards,

Meet.

0 Tomoya Oyama 7 months ago in reply to Meet Thakar

Intellectual 330 points

Hi team,

I try it again, I recognize this problem occurred by only SPI0_CS1 pin.

An error bellow occurs adding SPI0_CS1 pin as Digital Output.

"subdir_rules.mk:9: recipe for target 'build-1792661999' failed"

This problem occurred, when I use an example "gpio_led_blink" on the board AM243x_LP.

Best regards,

oyama

0 Tushar Thakur 6 months ago in reply to Tomoya Oyama

TI__Mastermind 48828 points

Hi Tomoya,

Can you please confirm, are you able to build the gpio_led_blink example for AM243x_LP when SPI0_CS1 pin is not added?

Can you please also share the example.syscfg file with us?

Regards,

Tushar

0 Tomoya Oyama 6 months ago in reply to Tushar Thakur

Intellectual 330 points

Hi Tushar,

It can build when another pin is added.

This is a syscfg file which can't build.

Best regards,

oyama

0 Tushar Thakur 6 months ago in reply to Tomoya Oyama

TI__Mastermind 48828 points

Hi Oyama,

I am able to replicate the issue at my end. It looks like a bug in the SDK. I have filed an internal Jira ticket for the same and will update you soon.

Regards,

Tushar

+1 Tushar Thakur 6 months ago in reply to Tushar Thakur

TI__Mastermind 48828 points

Hi Oyama,

Apologies for the delay here. I checked this with the dev team. The issue is planned to be fix in the SDK v11.1 release.

Regards,

Tushar

+1 Swargam Anil 6 months ago in reply to Tushar Thakur

TI__Mastermind 46106 points

Hello Oyama,

Please integrate the attached.c file into your application. Follow these steps for the GPIO configuration:

The changes below do not affect the customer system.

Later, the customer wants to add any peripherals, GPIO, everything they can add to the syscfg and generate code.

For the SPI0_CS1 pin, don't configure in the syscfg and follow the steps below.

Configure GPIO Manually
• The GPIO configuration should be done manually and not through SysConfig.
• Do not configure the SPI0_CS1 pin in SysConfig.

Initialize GPIO After Driver Initialization
• Call the GPIO initialization function after the driver initialization.
• This function will handle pinmux settings and GPIO direction configuration.

Control SPI0_CS1 in the Application
• Use the GPIO Set High and GPIO Set Low APIs in the application to control SPI0_CS1.
Please let me know if you face any issues.

/cfs-file/__key/communityserver-discussions-components-files/908/6518.gpio_5F00_led_5F00_blink.c

Regards,

Anil.

0 Tomoya Oyama 6 months ago in reply to Swargam Anil

Intellectual 330 points

Hi, Anil and team,

After making the change, I confirmed that the LED on the SPI0_CS1 pin was blinking.

I am grateful for your support.

Oyama

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AM2432: Digital output is not working