nvic_disable_interrupt

2 files changed, 17 insertions, 0 deletions

diff --git a/libmaple/nvic.c b/libmaple/nvic.c
index e540894..d8745a4 100644
--- a/libmaple/nvic.c
+++ b/libmaple/nvic.c
@@ -63,6 +63,22 @@ void nvic_enable_interrupt(uint32 n) {
     }
 }
 
+/**
+ *  @brief turn off interrupt number n
+ *  @param[in] n interrupt number
+ */
+void nvic_disable_interrupt(uint32 n) {
+    if (n >= NVIC_NR_INTERRUPTS) {
+        return;
+    }
+
+    if (n < 32) {
+        REG_SET_BIT(NVIC_ICER0, n);
+    } else {
+        REG_SET_BIT(NVIC_ICER1, n - 32);
+    }
+}
+
 
 
 /**
diff --git a/libmaple/nvic.h b/libmaple/nvic.h
index a9f32d6..8f18e4d 100644
--- a/libmaple/nvic.h
+++ b/libmaple/nvic.h
@@ -65,6 +65,7 @@ extern "C"{
 void nvic_init(void);
 void nvic_disable_interrupts(void);
 void nvic_enable_interrupt(uint32);
+void nvic_disable_interrupt(uint32);
 
 #ifdef __cplusplus
 }