cpu/stm32f3: added custom GPIO_UNDEF define

2015-06-14 16:16:28 +02:00 · 2015-06-14 16:16:28 +02:00 · 8c690f1d6a
commit 8c690f1d6a
parent ac8ad5419d
1 changed files with 5 additions and 0 deletions
--- a/cpu/stm32f3/include/periph_cpu.h
+++ b/cpu/stm32f3/include/periph_cpu.h
@ -33,6 +33,11 @@ extern "C" {
 typedef uint32_t gpio_t;
 /** @} */

+/**
+ * @brief   Definition of a fitting UNDEF value
+ */
+#define GPIO_UNDEF          (0xffffffff)
+
 /**
 * @brief   Define a CPU specific GPIO pin generator macro
 */