Steps 1+2: clock init (INTOSC1 60MHz), LED heartbeat, comparator/DAC/TripZone safety + EMUSTOP (build OK, HW validation pending)

src/bsp_gpio.h

@@ -0,0 +1,19 @@
+#ifndef BSP_GPIO_H
+#define BSP_GPIO_H
+
+#include <stdbool.h>
+
+typedef enum
+{
+    LED_BLUE = 0,
+    LED_RED
+} led_id_t;
+
+void bsp_gpio_leds_init(void);
+void led_set(led_id_t led, bool on);
+
+// Bascule AIO2, AIO4, AIO10, AIO12, AIO14 en mode analogique (shunts,
+// COMP1A/COMP2A, VOUT, V1, NTC1). A appeler avant safety_init()/adc_init().
+void bsp_gpio_analog_init(void);
+
+#endif