continue developing GPIO config; not tested yet

F0:F030,F042,F072/usbcan_gpio/flash.h

@@ -23,6 +23,8 @@
 #pragma once
 
 #include <stdint.h>
+
+#include "gpio.h"
 #include "usb_descr.h"
 
 // register with flash size (in blocks)
@@ -43,6 +45,10 @@ typedef struct __attribute__((packed, aligned(4))){
     uint16_t CANspeed;              // default CAN speed (in kBaud!!!)
     uint16_t iInterface[InterfacesAmount][MAX_IINTERFACE_SZ]; // we store Interface name here in UTF!
     uint8_t  iIlengths[InterfacesAmount]; // length in BYTES (symbols amount x2)!
+    // gpio settings
+    pinconfig_t pinconfig[2][16]; // GPIOA, GPIOB
+    usartconfig_t usartconfig;
+    spiconfig_t spiconfig;
 } user_conf;
 
 extern user_conf the_conf; // global user config (read from FLASH to RAM)