# example_write_radio_GPIO_pins.c File Reference

Resets Radio, configures the GPIO pins as outputs, then toggles the GPIO pins once per second. To test, monitor GPIO pins with an oscilloscope. More...

`#include "../HAL/hal.h"`
`#include "../ZNP/znp_interface.h"`

signed int | znpResult
int | main (void)

## Detailed Description

Resets Radio, configures the GPIO pins as outputs, then toggles the GPIO pins once per second. To test, monitor GPIO pins with an oscilloscope.

The CC2530ZNP supports four General Purpose Input/Output (GPIO) pins. Pins can be individually configured as:

- Inputs
- Outputs
- Tri-State

When configured as an output, the pin can be set, cleared, or toggled.

Note:
  The GPIO pins are not exposed on the CC2530ZNP target board

See also:
  http://processors.wiki.ti.com/index.php/Tutorial_on_the_Examples and http://e2e.ti.com/support/low_power_rf/default.aspx

Rev
  717

Author
  dsmith

Date
  2010-08-19 10:50:46 -0700 (Thu, 19 Aug 2010)

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