#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_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);
for (index = 0; index < STM_NUM_DMA; index++) {
stm_nvic_set_enable(STM_ISR_DMA1_CHANNEL1_POS + index);
- stm_nvic_set_priority(STM_ISR_DMA1_CHANNEL1_POS + index, 4);
+ stm_nvic_set_priority(STM_ISR_DMA1_CHANNEL1_POS + index,
+ AO_STM_NVIC_MED_PRIORITY);
ao_dma_allocated[index] = 0;
ao_dma_mutex[index] = 0;
}
(void) gpio;
uint32_t mask = 1 << pin;
-
+
if (mode & AO_EXTI_MODE_RISING)
stm_exti.rtsr |= mask;
else
ao_usart_init(&ao_stm_usart1);
stm_nvic_set_enable(STM_ISR_USART1_POS);
- stm_nvic_set_priority(STM_ISR_USART1_POS, 4);
+ stm_nvic_set_priority(STM_ISR_USART1_POS, AO_STM_NVIC_MED_PRIORITY);
#if USE_SERIAL_1_STDIN && !DELAY_SERIAL_1_STDIN
ao_add_stdio(_ao_serial1_pollchar,
ao_serial1_putchar,
#endif
stm_nvic_set_enable(STM_ISR_USART2_POS);
- stm_nvic_set_priority(STM_ISR_USART2_POS, 4);
+ stm_nvic_set_priority(STM_ISR_USART2_POS, AO_STM_NVIC_MED_PRIORITY);
#if USE_SERIAL_2_STDIN && !DELAY_SERIAL_2_STDIN
ao_add_stdio(_ao_serial2_pollchar,
ao_serial2_putchar,
ao_usart_init(&ao_stm_usart3);
stm_nvic_set_enable(STM_ISR_USART3_POS);
- stm_nvic_set_priority(STM_ISR_USART3_POS, 4);
+ stm_nvic_set_priority(STM_ISR_USART3_POS, AO_STM_NVIC_MED_PRIORITY);
#if USE_SERIAL_3_STDIN && !DELAY_SERIAL_3_STDIN
ao_add_stdio(_ao_serial3_pollchar,
ao_serial3_putchar,
stm_systick.csr = ((1 << STM_SYSTICK_CSR_ENABLE) |
(1 << STM_SYSTICK_CSR_TICKINT) |
(STM_SYSTICK_CSR_CLKSOURCE_HCLK_8 << STM_SYSTICK_CSR_CLKSOURCE));
+ stm_nvic.shpr15_12 |= AO_STM_NVIC_CLOCK_PRIORITY << 24;
}
#endif
ao_arch_block_interrupts();
/* Route interrupts */
- stm_nvic_set_priority(STM_ISR_USB_LP_POS, 3);
+ stm_nvic_set_priority(STM_ISR_USB_LP_POS, AO_STM_NVIC_LOW_PRIORITY);
stm_nvic_set_enable(STM_ISR_USB_LP_POS);
ao_usb_configuration = 0;