add CANBUS_SSI

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

@@ -0,0 +1,53 @@
+/*
+ * flash.h
+ *
+ * Copyright 2017 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
+
+#pragma once
+#ifndef __FLASH_H__
+#define __FLASH_H__
+
+#include "hardware.h"
+
+#define FLASH_BLOCK_SIZE    (1024)
+#define FLASH_SIZE_REG      ((uint32_t)0x1FFFF7CC)
+#define FLASH_SIZE          *((uint16_t*)FLASH_SIZE_REG)
+
+/*
+ * struct to save user configurations
+ */
+typedef struct __attribute__((packed, aligned(4))){
+    uint16_t userconf_sz;       // "magick number"
+    uint16_t CANspeed;          // default CAN speed
+    uint16_t encoderID;         // ID to send encoder data
+    uint16_t limitsID;          // ID to send limit-switches data
+    uint8_t  sendenc;           // send encoder's measurements by CAN bus
+    uint8_t sendsw;             // send limit switches values by CAN bus
+} user_conf;
+
+extern user_conf the_conf; // global user config (read from FLASH to RAM)
+// data from ld-file: start address of storage
+extern const uint32_t __varsstart;
+
+void flashstorage_init();
+int store_userconf();
+void dump_userconf();
+
+#endif // __FLASH_H__