Add picocalc stm32 i2c keyboard code

Code/picocalc_keyboard/conf_app.h

@@ -0,0 +1,31 @@
+#ifndef CONF_APP_H
+#define CONF_APP_H
+
+#define SLAVE_ADDRESS      0x1F
+#define FIFO_SIZE        31
+
+#define INT_DURATION_MS  1
+
+#ifndef CONFIG_PMU_SDA
+#define CONFIG_PMU_SDA PB11
+#endif
+
+#ifndef CONFIG_PMU_SCL
+#define CONFIG_PMU_SCL PB10
+#endif
+
+#ifndef CONFIG_PMU_IRQ
+#define CONFIG_PMU_IRQ PC9
+#endif
+
+
+#define LOW_BAT_VAL 20
+#define LCD_BACKLIGHT_STEP 10
+
+
+#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
+#define bitSet(value, bit) ((value) |= (1 << (bit)))
+#define bitClear(value, bit) ((value) &= ~(1 << (bit)))
+#define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet((value), (bit)) : bitClear((value), (bit) ))
+
+#endif