int main(int argc, char **argv)
{
// If you call this, it will not actually access the GPIO
// Use for testing
// bcm2835_set_debug(1);
if (!bcm2835_init())
return 1;
// Set RPI pin P1-15 to be an input
bcm2835_gpio_fsel(PIN, BCM2835_GPIO_FSEL_INPT);
// with a pullup
bcm2835_gpio_set_pud(PIN, BCM2835_GPIO_PUD_UP);
// And a low detect enable
bcm2835_gpio_len(PIN);
while (1)
{
if (bcm2835_gpio_eds(PIN))
{
// Now clear the eds flag by setting it to 1
bcm2835_gpio_set_eds(PIN);
printf("low event detect for pin 15\n");
}
// wait a bit
delay(500);
}
bcm2835_close();
return 0;
}
void edge_detect_test(uint8_t pin, uint8_t mode)
{
switch(mode)
{
case LOW_MODE:/*low level detect*/
bcm2835_gpio_len(pin);
printf("Start to detect the low level on the Phy07!\n");
while(1)
{
if(bcm2835_gpio_eds(pin))
{
printf("Phy07:Low level has been detected !\n");
break;
}
}
break;
case HIGH_MODE:/*high level detect*/
bcm2835_gpio_hen(pin);
printf("Start to detect the High level on the Phy07!\n");
while(1)
{
if(bcm2835_gpio_eds(pin))
{
printf("Phy07:High level has been detected !\n");
break;
}
}
break;
case FALLING_MODE:/*falling detect*/
bcm2835_gpio_fen(pin);
printf("Start to detect the falling on the Phy07!\n");
while(1)
{
if(bcm2835_gpio_eds(pin))
{
printf("Phy07: Falling has been detected !\n");
break;
}
}
break;
case RISING_MODE:/*rising detect*/
bcm2835_gpio_ren(pin);
printf("Start to detect the rising on the Phy07!\n");
while(1)
{
if(bcm2835_gpio_eds(pin))
{
printf("Phy07:Rising has been detected !\n");
break;
}
}
break;
}
}
static PyObject *
PyBCM2835_gpio_len(PyObject *self, PyObject *args)
{
uint8_t pin;
if (!PyArg_ParseTuple(args,"i",&pin)) {
return NULL;
}
bcm2835_gpio_len(pin);
Py_RETURN_NONE;
}
// this is a simple test program that prints out what it will do rather than
// actually doing it
int main(int argc, char **argv)
{
// Be non-destructive
bcm2835_set_debug(1);
if (!bcm2835_init())
return 1;
// Configure some GPIO pins fo some testing
// Set RPI pin P1-11 to be an output
bcm2835_gpio_fsel(RPI_GPIO_P1_11, BCM2835_GPIO_FSEL_OUTP);
// Set RPI pin P1-15 to be an input
bcm2835_gpio_fsel(RPI_GPIO_P1_15, BCM2835_GPIO_FSEL_INPT);
// with a pullup
bcm2835_gpio_set_pud(RPI_GPIO_P1_15, BCM2835_GPIO_PUD_UP);
// And a low detect enable
bcm2835_gpio_len(RPI_GPIO_P1_15);
// and input hysteresis disabled on GPIOs 0 to 27
bcm2835_gpio_set_pad(BCM2835_PAD_GROUP_GPIO_0_27, BCM2835_PAD_SLEW_RATE_UNLIMITED|BCM2835_PAD_DRIVE_8mA);
#if 1
// Blink
while (1)
{
// Turn it on
bcm2835_gpio_write(RPI_GPIO_P1_11, HIGH);
// wait a bit
bcm2835_delay(500);
// turn it off
bcm2835_gpio_write(RPI_GPIO_P1_11, LOW);
// wait a bit
bcm2835_delay(500);
}
#endif
#if 0
// Read input
while (1)
{
// Read some data
uint8_t value = bcm2835_gpio_lev(RPI_GPIO_P1_15);
printf("read from pin 15: %d\n", value);
// wait a bit
bcm2835_delay(500);
}
#endif
#if 0
// Look for a low event detection
// eds will be set whenever pin 15 goes low
while (1)
{
if (bcm2835_gpio_eds(RPI_GPIO_P1_15))
{
// Now clear the eds flag by setting it to 1
bcm2835_gpio_set_eds(RPI_GPIO_P1_15);
printf("low event detect for pin 15\n");
}
// wait a bit
bcm2835_delay(500);
}
#endif
if (!bcm2835_close())
return 1;
return 0;
}
//void bcm2835_gpio_len(uint8_t pin);
/// Call bcm2835_gpio_len with 1 parameter
/// \par Refer
/// \par Modify
void ope_gpio_len(void)
{
get_byte_code();
bcm2835_gpio_len( *((uint8_t *)(buff+1)) );
}
