diff --git a/src/Makefile b/src/Makefile
index 8aa7c73fb..ca8d03330 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -290,7 +290,7 @@ ifeq ($(PCB), ARM)
   BOARDSRC = board_ersky9x.cpp 
   EXTRABOARDSRC = ersky9x/core_cm3.c ersky9x/board_lowlevel.c ersky9x/crt.c ersky9x/vectors_sam3s.c
   # ersky9x/ff.c ersky9x/diskio_sam3s.c ersky9x/Media.c ersky9x/ccsbcs.c ersky9x/sdcard.c ersky9x/MEDSdcard.c
-  CPPSRC += ersky9x/sdmmc_spi.c ersky9x/sdspi.c
+  # CPPSRC += ersky9x/sdmmc_spi.c ersky9x/sdspi.c
   EEPROMSRC = eeprom_arm.cpp
   PULSESSRC = pulses_arm.cpp
   CPPSRC += ersky9x/audio.cpp haptic.cpp
diff --git a/src/ersky9x/haptic_driver.cpp b/src/ersky9x/haptic_driver.cpp
index baa03f9ba..419d201cc 100644
--- a/src/ersky9x/haptic_driver.cpp
+++ b/src/ersky9x/haptic_driver.cpp
@@ -31,16 +31,21 @@
  *
  */
 
+#include "../open9x.h"
+
 void hapticOff()
 {
+#ifndef SIMU
   PWM->PWM_DIS = PWM_DIS_CHID2 ;                                          // Disable channel 2
   PWM->PWM_OOV &= ~0x00040000 ;   // Force low
   PWM->PWM_OSS |= 0x00040000 ;    // Force low
+#endif
 }
 
 // pwmPercent 0-100
 void hapticOn( uint32_t pwmPercent )
 {
+#ifndef SIMU
   register Pwm *pwmptr ;
 
   pwmptr = PWM ;
@@ -52,4 +57,5 @@ void hapticOn( uint32_t pwmPercent )
   pwmptr->PWM_CH_NUM[2].PWM_CDTYUPD = pwmPercent ;                // Duty
   pwmptr->PWM_ENA = PWM_ENA_CHID2 ;                                               // Enable channel 2
   pwmptr->PWM_OSC = 0x00040000 ;  // Enable output
+#endif
 }
diff --git a/src/ersky9x/sdcard_driver.cpp b/src/ersky9x/sdcard_driver.cpp
index 13fae5323..a90f9d0ee 100644
--- a/src/ersky9x/sdcard_driver.cpp
+++ b/src/ersky9x/sdcard_driver.cpp
@@ -33,7 +33,9 @@
 
 void init_SDcard()
 {
+#ifndef SIMU
   configure_pins( 0xFC000000, PIN_PERIPHERAL | PIN_INPUT | PIN_PER_C | PIN_PORTA | PIN_NO_PULLUP ) ;
   configure_pins( PIO_PB7, PIN_INPUT | PIN_PORTB | PIN_NO_PULLUP | PIN_NO_PULLDOWN ) ;
+#endif
 }