Remove pin_mux.[ch], add init_peripherials.[ch], add reset_button.h which I forgot to add previously.

right/src/init_peripherials.c

@@ -0,0 +1,46 @@
+#include "fsl_common.h"
+#include "fsl_port.h"
+#include "test_led.h"
+#include "reset_button.h"
+#include "i2c.h"
+#include "led_driver.h"
+
+void InitPeripherials(void)
+{
+    // Ungate ports.
+    CLOCK_EnableClock(kCLOCK_PortA); // LEDs
+    CLOCK_EnableClock(kCLOCK_PortB); // SW3
+    CLOCK_EnableClock(kCLOCK_PortC); // SW2
+    CLOCK_EnableClock(kCLOCK_PortD); // LEDs, I2C
+
+    // Set up switches
+    port_pin_config_t switchConfig = {
+        .pullSelect = kPORT_PullUp,
+        .mux = kPORT_MuxAsGpio,
+    };
+    PORT_SetPinConfig(RESET_BUTTON_PORT, RESET_BUTTON_PIN, &switchConfig);
+
+    // Initialize LEDs.
+
+    PORT_SetPinMux(TEST_LED_GPIO_PORT, TEST_LED_GPIO_PIN, kPORT_MuxAsGpio);
+    TEST_LED_INIT(0);
+
+    // Initialize I2C.
+
+    port_pin_config_t pinConfig = {0};
+    pinConfig.pullSelect = kPORT_PullUp;
+    pinConfig.openDrainEnable = kPORT_OpenDrainEnable;
+
+    PORT_SetPinConfig(PORTD, 2, &pinConfig);
+    PORT_SetPinConfig(PORTD, 3, &pinConfig);
+
+    PORT_SetPinMux(PORTD, 2, kPORT_MuxAlt7);
+    PORT_SetPinMux(PORTD, 3, kPORT_MuxAlt7);
+
+    i2c_master_config_t masterConfig;
+    uint32_t sourceClock;
+    I2C_MasterGetDefaultConfig(&masterConfig);
+    masterConfig.baudRate_Bps = I2C_BAUD_RATE;
+    sourceClock = CLOCK_GetFreq(I2C_MASTER_CLK_SRC);
+    I2C_MasterInit(I2C_BASEADDR_MAIN_BUS, &masterConfig, sourceClock);
+}