1 files changed, 0 insertions, 23 deletions
diff --git a/os/hal/ports/STM32/LLD/EXTIv1/notes.txt b/os/hal/ports/STM32/LLD/EXTIv1/notes.txt
deleted file mode 100644
index 10eda50d4..000000000
--- a/os/hal/ports/STM32/LLD/EXTIv1/notes.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-STM32 EXT driver implementation through EXTI unit.
-
-There are several kind of EXTI lines:
-
-1) GPIO lines. Always in range 0..15, always handled by the EXT driver.
-2) Configurable peripheral events not shared, always handled by the EXT driver.
-3) Configurable peripheral events shared with other, non EXTI, interrupts.
-   The EXTI driver declares the ISR and has to call the IRQ handler of the
-   other driver.
-4) Direct lines (1 in IMR register after reset). The EXTI driver never touches
-   the default configuration for direct lines and does not declare ISRs.
-5) Unused lines. The EXTI driver does not declare ISRs.
-
-The file registry must export:
-STM32_EXTI_NUM_LINES - Range of configurable lines, it can have holes of
-                       unused or direct lines. Configurable line numbers go
-                       from 0 to STM32_EXTI_NUM_LINES-1.
-STM32_EXTI_IMR_MASK  - Direct lines and unused lines marked as 1 in this
-                       mask, configurable lines marked as 0.
-STM32_EXTI_IMR2_MASK - Optional, for lines 32...63.
-
-ISRs are not declared inside the driver, each sub-family must have its own
-ext_lld_isr.h and ext_lld_isr.c files.