diff --git a/firmware/src/main.c b/firmware/src/main.c
index aa29b49..cb2c868 100644
--- a/firmware/src/main.c
+++ b/firmware/src/main.c
@@ -24,9 +24,6 @@
 
 #define SI5351_ADDRESS 0x60
 
-#define SI5351_REGISTER_3_OUTPUT_ENABLE_CONTROL 3
-#define SI5351_REGISTER_177_PLL_RESET 177
-
 #define SYM_ENTRY(SYM) { SYM, sizeof(SYM) / 2 }
 
 static uint8_t EEMEM eeprom_contrast = 8;
@@ -174,69 +171,6 @@ static volatile uint8_t enc = 0;
 static volatile uint8_t value_contrast;
 static volatile uint8_t value_backlight;
 
-static const uint8_t m_si5351_regs_15to92_149to170[100][2] = {
-    // Init
-    {3, 0xFF},
-    {16, 0x4F}, /* CLK0 Control: 8mA drive, Multisynth 0 as CLK0 source, Clock
-                   not inverted, Source = PLLA, Multisynth 0 in integer mode,
-                   clock powered up */
-    {17, 0x4F}, /* CLK1 Control: 8mA drive, Multisynth 1 as CLK1 source, Clock
-                   not inverted, Source = PLLA, Multisynth 1 in integer mode,
-                   clock powered up */
-    {18, 0x6F}, /* CLK2 Control: 8mA drive, Multisynth 2 as CLK2 source, Clock
-                   not inverted, Source = PLLB, Multisynth 2 in integer mode,
-                   clock powered up */
-    {19, 0x80}, /* CLK3 Control: Not used ... clock powered down */
-    {20, 0x80}, /* CLK4 Control: Not used ... clock powered down */
-    {21, 0x80}, /* CLK5 Control: Not used ... clock powered down */
-    {22, 0x80}, /* CLK6 Control: Not used ... clock powered down */
-    {23, 0x80}, /* CLK7 Control: Not used ... clock powered down */
-    // PLL_A Setup (720MHz)
-    {26, 0x00},
-    {27, 0x05},
-    {28, 0x00},
-    {29, 0x0C},
-    {30, 0x66},
-    {31, 0x00},
-    {32, 0x00},
-    {33, 0x02},
-    // PLL_B Setup  (705MHz)
-    {34, 0x02},
-    {35, 0x71},
-    {36, 0x00},
-    {37, 0x0C},
-    {38, 0x1A},
-    {39, 0x00},
-    {40, 0x00},
-    {41, 0x86},
-    // Multisynth0 Setup (120MHz)
-    {42, 0x00},
-    {43, 0x01},
-    {44, 0x00},
-    {45, 0x01},
-    {46, 0x00},
-    {47, 0x00},
-    {48, 0x00},
-    {49, 0x00},
-    // Multisynth1 Setup (12MHz)
-    {50, 0x00},
-    {51, 0x01},
-    {52, 0x00},
-    {53, 0x1C},
-    {54, 0x00},
-    {55, 0x00},
-    {56, 0x00},
-    {57, 0x00},
-    // Multisynth2 Setup (13.56MHz)
-    {58, 0x00},
-    {59, 0x01},
-    {60, 0x00},
-    {61, 0x18},
-    {62, 0x00},
-    {63, 0x00},
-    {64, 0x00},
-    {65, 0x00}};
-
 static void spi_init(void) {
     SPI_DDR |= (1 << SPI_SCK) | (1 << SPI_MOSI) | (1 << SPI_SS);
     SPI_PORT |= (1 << SPI_SS);
@@ -370,18 +304,15 @@ static void lcd_write_integer_page(const uint32_t integer,
                                    const bool invert) {
     if (digits != 0 || integer != 0) {
         uint8_t input_digits = 0;
-        uint32_t comperator = 1;
+        uint16_t comperator = 1;
 
-        // Get digits
         for (; comperator <= integer; comperator *= 10, input_digits++);
 
-        // Print leading zeroes
         for (int8_t i = digits - input_digits; i > 0; i--) {
             lcd_write_kerning(2, invert);
             lcd_write_digit_page(0, page, invert);
         }
 
-        // Print number itself
         for (; comperator >= 10; comperator /= 10) {
             lcd_write_kerning(2, invert);
             lcd_write_digit_page((integer % comperator) / (comperator / 10),
@@ -878,13 +809,6 @@ int main(void) {
     (void) &twi_read_register;
     (void) &twi_write_register;
 
-    for (uint16_t i = 0; i < sizeof(m_si5351_regs_15to92_149to170) / 2; i++)
-        twi_write_register(SI5351_ADDRESS, m_si5351_regs_15to92_149to170[i][0],
-                           m_si5351_regs_15to92_149to170[i][1]);
-
-    twi_write_register(SI5351_ADDRESS, SI5351_REGISTER_177_PLL_RESET, 0xAC);
-    twi_write_register(SI5351_ADDRESS, SI5351_REGISTER_3_OUTPUT_ENABLE_CONTROL, 0x00);
-
     // Enable interrupts
     sei();