GPIO — General purpose I/O
As well as hardware definitions, the file
<cyg/hal/hal_ixp425.h> provides a set of
macros to assist GPIO manipulation:
HAL_GPIO_OUTPUT_ENABLE(line) HAL_GPIO_OUTPUT_DISABLE(line) HAL_GPIO_OUTPUT_SET(line) HAL_GPIO_OUTPUT_CLEAR(line)
As described earlier, HAL support already exists for handling GPIO lines configured as interrupts.
|2018-07-27||eCosPro Non-Commercial Public License|