altos/stm: Interrupt priority is in the upper bits of the priority mask
[fw/altos] / src / stm / ao_arch.h
index 1527014ab46e22999a486caab25f299a4f1ce57b..3a794e5a6adabc3c22d0d22affff90371d9488ef 100644 (file)
@@ -119,10 +119,19 @@ extern const uint32_t ao_radio_cal;
 #define AO_TIM91011_CLK                (2 * AO_PCLK2)
 #endif
 
-#define AO_STM_NVIC_HIGH_PRIORITY      4
-#define AO_STM_NVIC_CLOCK_PRIORITY     6
-#define AO_STM_NVIC_MED_PRIORITY       8
-#define AO_STM_NVIC_LOW_PRIORITY       10
+/* The stm32l implements only 4 bits of the priority fields */
+
+#define AO_STM_NVIC_NON_MASK_PRIORITY  0x00
+
+/* Set the basepri register to this value to mask all
+ * non-maskable priorities
+ */
+#define AO_STM_NVIC_BASEPRI_MASK       0x10
+
+#define AO_STM_NVIC_HIGH_PRIORITY      0x40
+#define AO_STM_NVIC_MED_PRIORITY       0x80
+#define AO_STM_NVIC_LOW_PRIORITY       0xC0
+#define AO_STM_NVIC_CLOCK_PRIORITY     0xf0
 
 void ao_lcd_stm_init(void);