SPI flash driver (write) & settings saving

App/CMakeLists.txt

@@ -12,7 +12,6 @@ target_sources(App INTERFACE
     driver/gpio.c
     driver/i2c.c
     driver/keyboard.c
-    # driver/spi.c
     driver/st7565.c
     driver/system.c
     driver/systick.c
@@ -106,7 +105,9 @@ enable_feature(ENABLE_AIRCOPY
     ui/aircopy.c
 )
 enable_feature(ENABLE_NOAA)
-# enable_feature(ENABLE_VOICE)
+enable_feature(ENABLE_VOICE 
+    driver/dac.c
+)
 enable_feature(ENABLE_VOX)
 enable_feature(ENABLE_ALARM)
 enable_feature(ENABLE_TX1750)