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[bsp/n32g452xx] add rt_pin_get support

This commit is contained in:
Siwei Xu 2022-01-08 19:26:29 +08:00 committed by Bernard Xiong
parent 169fca84f7
commit 77a5ddf9ae
2 changed files with 30 additions and 6 deletions
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23
bsp/n32g452xx/Libraries/rt_drivers/drv_gpio.c
View File

@ -20,9 +20,9 @@
#define __N32_PIN(index, rcc, gpio, gpio_index) \
{ \
0, RCC_##rcc##_PERIPH_GPIO##gpio, GPIO##gpio, GPIO_PIN_##gpio_index \
, GPIO##gpio##_PORT_SOURCE, GPIO_PIN_SOURCE##gpio_index \
, GPIO##gpio##_PORT_SOURCE, GPIO_PIN_SOURCE##gpio_index, "P" #gpio "." #gpio_index \
}
#define __N32_PIN_DEFAULT {-1, 0, 0, 0, 0, 0}
#define __N32_PIN_DEFAULT {-1, 0, 0, 0, 0, 0, ""}
/* N32 GPIO driver */
struct pin_index
@ -33,6 +33,7 @@ struct pin_index
uint32_t pin;
uint8_t port_source;
uint8_t pin_source;
const char* name;
};
static const struct pin_index pins[] =
@ -473,6 +474,23 @@ const struct pin_index *get_pin(uint8_t pin)
return index;
};
rt_base_t n32_pin_get(const char *name)
{
rt_base_t i;
for (i = 0; i < ITEM_NUM(pins); i++)
{
if (rt_strcmp(pins[i].name, name) == 0)
{
/* in get_pin function, use pin parameter as index of pins array */
return i;
}
}
/* refers content of pins array, map to __N32_PIN_DEFAULT */
return 0;
}
void n32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
const struct pin_index *index;
@ -754,6 +772,7 @@ const static struct rt_pin_ops _n32_pin_ops =
n32_pin_attach_irq,
n32_pin_dettach_irq,
n32_pin_irq_enable,
n32_pin_get
};
int n32_hw_pin_init(void)

13
bsp/n32g452xx/n32g452xx-mini-system/applications/main.c
View File

@ -12,19 +12,24 @@
#include <rtdevice.h>
/* defined the LED1 pin: PB5 */
#define LED1_PIN 57
#define LED1_NAME "PB.5"
rt_base_t led1_pin;
int main(void)
{
uint32_t Speed = 200;
/* get LED1 pin id by name */
led1_pin = rt_pin_get(LED1_NAME);
/* set LED1 pin mode to output */
rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(led1_pin, PIN_MODE_OUTPUT);
while (1)
{
rt_pin_write(LED1_PIN, PIN_LOW);
rt_pin_write(led1_pin, PIN_LOW);
rt_thread_mdelay(Speed);
rt_pin_write(LED1_PIN, PIN_HIGH);
rt_pin_write(led1_pin, PIN_HIGH);
rt_thread_mdelay(Speed);
}
}