3 files changed, 33 insertions, 33 deletions
diff --git a/example-cdc/sys.c b/example-cdc/sys.c
index 2cb9894..7ab8ce4 100644
--- a/example-cdc/sys.c
+++ b/example-cdc/sys.c
@@ -25,17 +25,17 @@
 #define STM32_USB_IRQ_PRIORITY   11
 
 struct NVIC {
-  uint32_t ISER[8];
-  uint32_t unused1[24];
-  uint32_t ICER[8];
-  uint32_t unused2[24];
-  uint32_t ISPR[8];
-  uint32_t unused3[24];
-  uint32_t ICPR[8];
-  uint32_t unused4[24];
-  uint32_t IABR[8];
-  uint32_t unused5[56];
-  uint32_t IPR[60];
+  volatile uint32_t ISER[8];
+  volatile uint32_t unused1[24];
+  volatile uint32_t ICER[8];
+  volatile uint32_t unused2[24];
+  volatile uint32_t ISPR[8];
+  volatile uint32_t unused3[24];
+  volatile uint32_t ICPR[8];
+  volatile uint32_t unused4[24];
+  volatile uint32_t IABR[8];
+  volatile uint32_t unused5[56];
+  volatile uint32_t IPR[60];
 };
 
 static struct NVIC *const NVICBase = ((struct NVIC *const)0xE000E100);
diff --git a/example-led/sys.c b/example-led/sys.c
index d488b20..a4c1644 100644
--- a/example-led/sys.c
+++ b/example-led/sys.c
@@ -25,17 +25,17 @@
 #define STM32_USB_IRQ_PRIORITY   11
 
 struct NVIC {
-  uint32_t ISER[8];
-  uint32_t unused1[24];
-  uint32_t ICER[8];
-  uint32_t unused2[24];
-  uint32_t ISPR[8];
-  uint32_t unused3[24];
-  uint32_t ICPR[8];
-  uint32_t unused4[24];
-  uint32_t IABR[8];
-  uint32_t unused5[56];
-  uint32_t IPR[60];
+  volatile uint32_t ISER[8];
+  volatile uint32_t unused1[24];
+  volatile uint32_t ICER[8];
+  volatile uint32_t unused2[24];
+  volatile uint32_t ISPR[8];
+  volatile uint32_t unused3[24];
+  volatile uint32_t ICPR[8];
+  volatile uint32_t unused4[24];
+  volatile uint32_t IABR[8];
+  volatile uint32_t unused5[56];
+  volatile uint32_t IPR[60];
 };
 
 static struct NVIC *const NVICBase = ((struct NVIC *const)0xE000E100);
diff --git a/example-primer2/sys.c b/example-primer2/sys.c
index a399b7f..85b6888 100644
--- a/example-primer2/sys.c
+++ b/example-primer2/sys.c
@@ -71,17 +71,17 @@ gpio_init_primer2 (void)
 #define STM32_USB_IRQ_PRIORITY   11
 
 struct NVIC {
-  uint32_t ISER[8];
-  uint32_t unused1[24];
-  uint32_t ICER[8];
-  uint32_t unused2[24];
-  uint32_t ISPR[8];
-  uint32_t unused3[24];
-  uint32_t ICPR[8];
-  uint32_t unused4[24];
-  uint32_t IABR[8];
-  uint32_t unused5[56];
-  uint32_t IPR[60];
+  volatile uint32_t ISER[8];
+  volatile uint32_t unused1[24];
+  volatile uint32_t ICER[8];
+  volatile uint32_t unused2[24];
+  volatile uint32_t ISPR[8];
+  volatile uint32_t unused3[24];
+  volatile uint32_t ICPR[8];
+  volatile uint32_t unused4[24];
+  volatile uint32_t IABR[8];
+  volatile uint32_t unused5[56];
+  volatile uint32_t IPR[60];
 };
 
 static struct NVIC *const NVICBase = ((struct NVIC *const)0xE000E100);