diff --git a/firmware/basic/basic.c b/firmware/basic/basic.c
index 51c1950..5b908df 100644
--- a/firmware/basic/basic.c
+++ b/firmware/basic/basic.c
@@ -18,7 +18,7 @@ void rbInit() {
     gpioSetDir(USB_CONNECT, gpioDirection_Output);
     gpioSetValue(USB_CONNECT, 1);
 
-    uint8_t ports[] = { RB_BTN0, RB_BTN1, RB_BTN2, RB_BTN3, RB_BTN4,
+    static uint8_t ports[] = { RB_BTN0, RB_BTN1, RB_BTN2, RB_BTN3, RB_BTN4,
                         RB_LED0, RB_LED1, RB_LED2, 
                         RB_SPI_SS0, RB_SPI_SS1, RB_SPI_SS2,
                         RB_SPI_SS3, RB_SPI_SS4, RB_SPI_SS5,
diff --git a/firmware/lcd/display.c b/firmware/lcd/display.c
index 2e60e08..5d0301d 100644
--- a/firmware/lcd/display.c
+++ b/firmware/lcd/display.c
@@ -166,7 +166,7 @@ void lcdInit(void) {
     lcd_select();
 
     if(displayType==DISPLAY_N1200){
-        uint8_t initseq[]= { 0xE2,0xAF, // Display ON
+        static uint8_t initseq[]= { 0xE2,0xAF, // Display ON
                              0xA1, // Mirror-X
                              0xA4, 0x2F, 0xB0, 0x10};
         int i = 0;
@@ -175,7 +175,7 @@ void lcdInit(void) {
             delayms(5); // actually only needed after the first
         }
     }else{ /* displayType==DISPLAY_N1600 */
-        uint8_t initseq_d[] = {  
+        static uint8_t initseq_d[] = {  
                                0x36,
                                0x29, 0xBA, 0x07,
                                0x15, 0x25, 0x3f,