#define AO_APB2_PRESCALER 2
#define AO_RCC_CFGR_PPRE2_DIV STM_RCC_CFGR_PPRE2_DIV_2
+/* Allow for non-maskable interrupts at priority 0 */
+#define AO_NONMASK_INTERRUPT 1
+
+/* PS/2 keyboard connection */
+#define AO_PS2_CLOCK_PORT (&stm_gpiod)
+#define AO_PS2_CLOCK_BIT 9
+#define AO_PS2_DATA_PORT (&stm_gpiod)
+#define AO_PS2_DATA_BIT 8
+
#define HAS_SERIAL_1 1
#define USE_SERIAL_1_STDIN 0
#define SERIAL_1_PB6_PB7 1