Merge branch 'issue/18-Backup-RAM' into issue/20-implement-better-stack-checking

stm-firmware/include/stm-periph/backup-ram.h

@@ -19,33 +19,39 @@
  */
 
 #include <stdint.h>
+#include <stdbool.h>
 
 /**
  * @brief Init the backup ram and make it accesible
+ * @param use_backup_regulator Enable the Backup VBAT regulator. It will be used, when VDD is powered off
  */
-void backup_ram_init();
+void backup_ram_init(bool use_backup_regulator);
 
 /**
  * @brief Disable access to the backup RAM. This saves power
  */
-void backup_ram_disable();
+void backup_ram_disable(void);
 
 /**
- * @brief Whis function overwrites the backup RAM with 0x00
+ * @brief Whis function overwrites the backup RAM with 0x00000000
  */
-void backup_ram_wipe();
+void backup_ram_wipe(void);
 
 /**
  * @brief Read data from the backup RAM
  * @param addr Address offset inside memory
- * @param data read 32bit data
+ * @param data Read data
+ * @param count amount of 32 bit words to read
+ * @return 0 if successful
  */
-int backup_ram_get_data(uint32_t addr, uint32_t *data);
+int backup_ram_get_data(uint32_t addr, uint32_t *data, uint32_t count);
 
 /**
  * @brief Write data structure to backup RAM
- * @param data
- * @return
+ * @param[in] data Data to write.
+ * @param count Count of 32 bit words to write
+ * @return 0 if successful
  */
-int backup_ram_write_data(uint32_t addr, uint32_t data);
+int backup_ram_write_data(uint32_t addr, const uint32_t *data, uint32_t count);
 
+uint32_t backup_ram_get_size_in_words(void);

stm-firmware/include/stm-periph/crc-unit.h

@@ -0,0 +1,38 @@
+/* Reflow Oven Controller
+ *
+ * Copyright (C) 2020  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of the Reflow Oven Controller Project.
+ *
+ * The reflow oven controller is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * GDSII-Converter 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 the reflow oven controller project.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __CRC_UNIT_H__
+#define __CRC_UNIT_H__
+
+#include <stdint.h>
+
+void crc_unit_init(void);
+
+void crc_unit_deinit(void);
+
+void crc_unit_reset(void);
+
+uint32_t crc_unit_get_crc(void);
+
+void crc_unit_input(uint32_t data);
+
+void crc_unit_input_array(const uint32_t *data, uint32_t len);
+
+#endif /* __CRC_UNIT_H__ */