EXTI lines number on STM32F303x8 Topic is solved

[mobyfab]

Hi,

It seems like number of EXTI lines in the registry for STM32F303x8 is incorrect.

EXTI line 33 is connected to Comparator 7 output (STM32F303xB/C/D/E,
STM32F358xC and STM32F398xE devices)

GCC Error:

Code: Select all

Compiling stm32_dma.c
../ChibiOS/os/hal/ports/STM32/STM32F3xx/hal_ext_lld_isr.c: In function 'ext_lld_exti_irq_enable':
../ChibiOS/os/hal/ports/STM32/STM32F3xx/hal_ext_lld_isr.c:425:20: error: 'COMP7_IRQn' undeclared (first use in this function)
   nvicEnableVector(COMP7_IRQn, STM32_EXT_EXTI33_IRQ_PRIORITY);
                    ^~~~~~~~~~
../ChibiOS/os/hal/ports/STM32/STM32F3xx/hal_ext_lld_isr.c:425:20: note: each undeclared identifier is reported only once for each function it appears in
../ChibiOS/os/hal/ports/STM32/STM32F3xx/hal_ext_lld_isr.c: In function 'ext_lld_exti_irq_disable':
../ChibiOS/os/hal/ports/STM32/STM32F3xx/hal_ext_lld_isr.c:453:21: error: 'COMP7_IRQn' undeclared (first use in this function)
   nvicDisableVector(COMP7_IRQn);


Fix:

Code: Select all


diff --git a/os/hal/ports/STM32/STM32F3xx/stm32_registry.h b/os/hal/ports/STM32/STM32F3xx/stm32_registry.h
index e1bf383..a15d959 100644
--- a/os/hal/ports/STM32/STM32F3xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32F3xx/stm32_registry.h
@@ -649,7 +649,7 @@
 #define STM32_HAS_ETH                       FALSE
 
 /* EXTI attributes.*/
-#define STM32_EXTI_NUM_LINES                34
+#define STM32_EXTI_NUM_LINES                33
 #define STM32_EXTI_IMR_MASK                 0x1F800000U
 #define STM32_EXTI_IMR2_MASK                0xFFFFFFFCU


[RoccoMarco]

Thanks. I will take a look.

[mobyfab]

Did you have time to implement the fix?

Thanks

[Giovanni]

It will be implemented before next release.

Giovanni

[Giovanni]

Fixed as bug #827.

Giovanni

[alex31]

Hello, in the same file, EXTI lines number is still wrong for the STM32F303xC and STM32F303xC where it should be 36 instead of 34.

EXTI line 35 is connected to UART5 wakeup (STM32F303xB/C/D/E, STM32F358xC
and STM32F398xE devices)

from RM0316 page 296

Alexandre

[Giovanni]

hi,

Those are internal sources, the EXT driver does not handle that kind, the corresponding bits in the EXTI registers are not writable.

Giovanni