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Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
If you are looking for a stable and tested release, please import one of the official mbed library releases:
Import librarymbed
The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Last commit 20 Feb 2019 by 
mbed official
Diff: targets/hal/TARGET_NXP/TARGET_LPC176X/gpio_api.c
- Revision:
- 227:7bd0639b8911
- Parent:
- 113:65a335a675de
--- a/targets/hal/TARGET_NXP/TARGET_LPC176X/gpio_api.c Wed Jun 11 09:45:09 2014 +0100
+++ b/targets/hal/TARGET_NXP/TARGET_LPC176X/gpio_api.c Wed Jun 11 16:00:09 2014 +0100
@@ -13,21 +13,23 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+#include "mbed_assert.h"
#include "gpio_api.h"
#include "pinmap.h"
uint32_t gpio_set(PinName pin) {
+ MBED_ASSERT(pin != (PinName)NC);
pin_function(pin, 0);
return (1 << ((int)pin & 0x1F));
}
void gpio_init(gpio_t *obj, PinName pin) {
- if(pin == NC) return;
-
obj->pin = pin;
+ if (pin == (PinName)NC)
+ return;
+
obj->mask = gpio_set(pin);
-
- LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *) ((int)pin & ~0x1F);
+ LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *)((int)pin & ~0x1F);
obj->reg_set = &port_reg->FIOSET;
obj->reg_clr = &port_reg->FIOCLR;
obj->reg_in = &port_reg->FIOPIN;
@@ -39,8 +41,13 @@
}
void gpio_dir(gpio_t *obj, PinDirection direction) {
+ MBED_ASSERT(obj->pin != (PinName)NC);
switch (direction) {
- case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
- case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
+ case PIN_INPUT :
+ *obj->reg_dir &= ~obj->mask;
+ break;
+ case PIN_OUTPUT:
+ *obj->reg_dir |= obj->mask;
+ break;
}
}
