diff --git a/CMakeLists.txt b/CMakeLists.txt
index da3a60b..4672e03 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,8 @@ set(EXECUTABLE ${PROJECT_NAME}.out)
 #CONFIG FILE
 ####################################################################################################
 
+set(INTERFACES_DIR ${CMAKE_SOURCE_DIR}/bsl/csl/interfaces)
+
 include(${CMAKE_SOURCE_DIR}/bsl/nucleo_f042k6/bsl_nucleo_f042k6.cmake)
 
 ####################################################################################################
diff --git a/periferals/gpio/gpio.hpp b/bsl/csl/interfaces/gpio.hpp
similarity index 100%
rename from periferals/gpio/gpio.hpp
rename to bsl/csl/interfaces/gpio.hpp
diff --git a/interfaces/i2c.hpp b/bsl/csl/interfaces/i2c.hpp
similarity index 100%
rename from interfaces/i2c.hpp
rename to bsl/csl/interfaces/i2c.hpp
diff --git a/interfaces/pin.hpp b/bsl/csl/interfaces/pin.hpp
similarity index 100%
rename from interfaces/pin.hpp
rename to bsl/csl/interfaces/pin.hpp
diff --git a/interfaces/spi.hpp b/bsl/csl/interfaces/spi.hpp
similarity index 100%
rename from interfaces/spi.hpp
rename to bsl/csl/interfaces/spi.hpp
diff --git a/interfaces/spich.hpp b/bsl/csl/interfaces/spich.hpp
similarity index 100%
rename from interfaces/spich.hpp
rename to bsl/csl/interfaces/spich.hpp
diff --git a/bsl/nucleo_f042k6/periferals/gpio/CMakeLists.txt b/bsl/nucleo_f042k6/periferals/gpio/CMakeLists.txt
index 4c6f552..7c94c87 100644
--- a/bsl/nucleo_f042k6/periferals/gpio/CMakeLists.txt
+++ b/bsl/nucleo_f042k6/periferals/gpio/CMakeLists.txt
@@ -2,5 +2,5 @@ add_library(stmGpio gpio.cpp)
 
 target_compile_options(stmGpio PRIVATE ${C_FLAGS})
 target_compile_definitions(stmGpio PRIVATE ${C_DEFS})
-target_include_directories(stmGpio PUBLIC ${CMAKE_SOURCE_DIR}/periferals/gpio ${CSL_INCLUDES})
+target_include_directories(stmGpio PUBLIC ${INTERFACES_DIR} ${CSL_INCLUDES})
 add_library(sub::gpio ALIAS stmGpio)
diff --git a/bsl/nucleo_f042k6/periferals/gpio/gpio.cpp b/bsl/nucleo_f042k6/periferals/gpio/gpio.cpp
index 392ac9a..2a97e46 100644
--- a/bsl/nucleo_f042k6/periferals/gpio/gpio.cpp
+++ b/bsl/nucleo_f042k6/periferals/gpio/gpio.cpp
@@ -1,34 +1,9 @@
 #include "gpio.hpp" 
 #include "../../bsl_nucleo_f042k6.h"
-//#include "/home/key/git/ked/bsl/csl/stm32f042/Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f042x6.h"
 #include "./../../../csl/stm32f042/Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f042x6.h"
-//#include "gpioMap.hpp"
 
 #define PIN_COUNT 20
 
-#define D0  0
-#define D1	1
-#define D2	2
-#define D3	3
-#define D4	4
-#define D5	5
-#define D6	6
-#define D7	7
-#define D8	8
-#define D9	9
-#define D10	10
-#define D11	11
-#define D12	12
-#define A0  13 
-#define A1  14
-#define A2	15
-#define A3	16
-#define A4	17
-#define A5	18
-#define A6	19
-#define A7	20
-
-
 
 class Gpio::gpioImpl
 {
diff --git a/main.cpp b/main.cpp
index e62feaa..638263c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,5 @@
 #include"main.hpp"
-#include "periferals/gpio/gpio.hpp"
+#include "bsl/csl/interfaces/gpio.hpp"
 
 int main(int argc, char *argv[])
 {
@@ -8,9 +8,9 @@ int main(int argc, char *argv[])
 
 	while(1)
 	{
-		LL_mDelay(100); 
+		LL_mDelay(500); 
 		gpio.writePin(1,1);
-		LL_mDelay(100); 
+		LL_mDelay(500); 
 		gpio.writePin(1,0);
 	}	
 	return 1;