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Issue #18: Implement driver for backup RAM

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This commit is contained in:
Mario Hüttel
2020-09-04 21:03:53 +02:00
parent 45c0625864
commit d3c4e1bffc
2 changed files with 65 additions and 15 deletions
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22
stm-firmware/include/stm-periph/backup-ram.h
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@@ -23,29 +23,31 @@
/**
* @brief Init the backup ram and make it accesible
*/
void backup_ram_init();
void backup_ram_init(void);
/**
* @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);