/**
* \brief Test IOPORT port level is getting changed.
*
* This function set the direction of CONF_PORT_OUT_PIN_MASK to output mode with
* pull-up enabled and read the status of pin using CONF_PORT_IN_PIN_MASK which
* is configured in input mode.
* The pin CONF_PORT_OUT_PIN_MASK and CONF_PORT_IN_PIN_MASK are shorted using a
* jumper.
*
* \param test Current test case.
*/
static void run_ioport_port_test(const struct test_case *test)
{
static volatile pin_mask_t port_val;
/* Set direction and pull-up on the given IOPORT */
ioport_set_port_dir(CONF_PORT, CONF_PORT_IN_PIN_MASK, IOPORT_DIR_INPUT);
ioport_set_port_mode(CONF_PORT, CONF_PORT_IN_PIN_MASK,
IOPORT_MODE_PULLUP);
/* Set output direction on the given IOPORT */
ioport_set_port_dir(CONF_PORT, CONF_PORT_OUT_PIN_MASK,
IOPORT_DIR_OUTPUT);
/* Set IOPORT as high */
ioport_set_port_level(CONF_PORT, CONF_PORT_OUT_PIN_MASK,
IOPORT_PIN_LEVEL_HIGH);
delay_ms(10);
port_val = ioport_get_port_level(CONF_PORT, CONF_PORT_IN_PIN_MASK);
test_assert_true(test, port_val == CONF_PORT_IN_PIN_MASK,
"IOPORT Set port level high test failed.");
/* Set IOPORT as low */
ioport_set_port_level(CONF_PORT, CONF_PORT_OUT_PIN_MASK,
IOPORT_PIN_LEVEL_LOW);
delay_ms(10);
port_val = ioport_get_port_level(CONF_PORT, CONF_PORT_IN_PIN_MASK);
test_assert_true(test, port_val == 0,
"IOPORT Set port level low test failed.");
/* Toggle IOPORT */
ioport_toggle_port_level(CONF_PORT, CONF_PORT_OUT_PIN_MASK);
delay_ms(10);
port_val = ioport_get_port_level(CONF_PORT, CONF_PORT_IN_PIN_MASK);
test_assert_true(test, port_val == CONF_PORT_IN_PIN_MASK,
"IOPORT Set port level toggle test failed.");
}
int main(void)
{
/* Use static volatile to make it available in debug watch */
static volatile ioport_port_mask_t port_val;
sysclk_init();
board_init();
ioport_init();
delay_init(sysclk_get_cpu_hz());
/* Set output direction on the given LED IOPORTs */
ioport_set_port_dir(EXAMPLE_LED_PORT, EXAMPLE_LED_MASK,
IOPORT_DIR_OUTPUT);
#ifdef EXAMPLE_BUTTON_PORT
/* Set direction and pullup on the given button IOPORT */
ioport_set_port_dir(EXAMPLE_BUTTON_PORT, EXAMPLE_BUTTON_MASK,
IOPORT_DIR_INPUT);
ioport_set_port_mode(EXAMPLE_BUTTON_PORT, EXAMPLE_BUTTON_MASK,
IOPORT_MODE_PULLUP);
/* Set LED IOPORTs high */
ioport_set_port_level(EXAMPLE_LED_PORT, EXAMPLE_LED_MASK,
IOPORT_PIN_LEVEL_HIGH);
#endif
while (true) {
/* Toggle LED IOPORTs with half a second interval */
ioport_toggle_port_level(EXAMPLE_LED_PORT, EXAMPLE_LED_MASK);
delay_ms(500);
#ifdef EXAMPLE_BUTTON_PORT
/* Get value from button port */
/* Use watch with debugger to see it */
port_val = ioport_get_port_level(EXAMPLE_BUTTON_PORT,
EXAMPLE_BUTTON_MASK);
#endif
}
}
int port_read(port_t *obj)
{
MBED_ASSERT(obj);
return ioport_get_port_level(obj->port, obj->mask);
}
