Merge branch 'ds1307_NVRAM'

Core/Src/ds1307.c

@@ -42,6 +42,58 @@ static uint8_t ds1307_read_byte(uint8_t ds1307_reg_addres);
 static uint8_t ds1307_bcd_decode(uint8_t data);
 static uint8_t ds1307_bcd_encode(uint8_t data);
 
+/*
+ *
+ 	 Function designed to read embedded RAM data.
+ 	 Address range 0x08 to 0x3F
+ 	 56 bytes of data
+
+ 	 addr: address of data to read 0x08 to 0x3F
+ 	 data: pointer to data
+ 	 len: number of bytes of data to read
+
+ */
+
+uint8_t ds1307_read_user_RAM(uint8_t addr, uint8_t * data, uint8_t len){
+
+	HAL_StatusTypeDef status = HAL_OK;
+
+	for(uint8_t i = 0; i < len; i++){
+		uint8_t resp = ds1307_read_byte(addr + i);
+		*(data + i) = resp;
+	}
+
+	return status;
+}
+
+/*
+ *
+ 	 Function designed to write embedded RAM data.
+ 	 Address range 0x08 to 0x3F
+ 	 56 bytes of data
+
+ 	 addr: address of data to read 0x08 to 0x3F
+ 	 data: pointer to data
+ 	 len: number of bytes of data to read
+
+ */
+
+uint8_t ds1307_write_user_RAM(uint8_t addr, uint8_t * data, uint8_t len){
+	HAL_StatusTypeDef status = HAL_OK;
+	uint8_t buff[4] = {0};
+	buff[0] = addr;
+
+	for(uint8_t i = 0; i < len; i++){
+
+		ds1307_write_byte(addr + i, *(data + i));
+		HAL_Delay(5);
+
+	}
+
+
+	return status;
+}
+
 /**
  * @brief Write byte data from an specific address ds1307 RTC
  *