Add RAM read/write

Inc/DS1307.h

@@ -1,12 +1,13 @@
 /*
  * DS1307.h
  *
+ * 	The MIT License.
  *  Created on: 4.09.2019
  *      Author: Mateusz Salamon
  *		Contact: mateusz@msalamon.pl
  *
- *      Website:
- *      GitHub:
+  *      Website: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/
+  *      GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL
  */
 
 //
@@ -61,6 +62,9 @@ void DS1307_SQWRateSelect(uint8_t Rate);
 void DS1307_OutputControl(uint8_t Enable);
 void DS1307_ClockHalt(uint8_t Enable);
 
+void DS1307_ReadRAM(uint8_t Address, uint8_t *Value, uint8_t Length);
+void DS1307_WriteRAM(uint8_t Address, uint8_t *Value, uint8_t Length);
+
 void DS1307_SetDateTime(RTCDateTime *DateTime);
 #ifdef DS1307_USE_DMA
 void DS1307_ReceiveDateTimeDMA(void);	// Use in DS1307 Interrupt handler

README.md

@@ -1,9 +1,14 @@
 DS1307 RTC with STM32 HAL. 
 
 STM43F410RB
+
 STM32CubeIDE 1.0.2
+
 HAL F4 1.24.1
 
-Description: 
+
+Description: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/
+
 GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL
+
 Contact: mateusz@msalamon.pl

Src/DS1307.c

@@ -1,12 +1,13 @@
 /*
  * DS1307.c
  *
+ *	The MIT License.
  *  Created on: 4.09.2019
  *      Author: Mateusz Salamon
  *		Contact: mateusz@msalamon.pl
  *
- *      Website:
- *      GitHub:
+  *      Website: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/
+  *      GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL
  */
 #include "main.h"
 #include "DS1307.h"
@@ -138,6 +139,22 @@ void DS1307_GetDateTime(RTCDateTime *DateTime)
 }
 #endif
 
+void DS1307_ReadRAM(uint8_t Address, uint8_t *Value, uint8_t Length)
+{
+	if((Address < DS1307_REG_RAM_START) || (Address > DS1307_REG_RAM_END)) return;
+	if((Address + Length + DS1307_REG_RAM_START) > DS1307_REG_RAM_END) return;
+
+	HAL_I2C_Mem_Read(hi2c_ds1307, DS1307_ADDRESS, Address, 1, Value, Length, DS1307_I2C_TIMEOUT);
+}
+
+void DS1307_WriteRAM(uint8_t Address, uint8_t *Value, uint8_t Length)
+{
+	if((Address < DS1307_REG_RAM_START) || (Address > DS1307_REG_RAM_END)) return;
+	if((Address + Length + DS1307_REG_RAM_START) > DS1307_REG_RAM_END) return;
+
+	HAL_I2C_Mem_Write(hi2c_ds1307, DS1307_ADDRESS, Address, 1, Value, Length, DS1307_I2C_TIMEOUT);
+}
+
 void DS1307_Init(I2C_HandleTypeDef *hi2c)
 {
 	hi2c_ds1307 = hi2c;

Src/main.c

@@ -15,6 +15,13 @@
   *                        opensource.org/licenses/BSD-3-Clause
   *
   ******************************************************************************
+  *
+  *  Created on: 4.09.2019
+  *      Author: Mateusz Salamon
+  *		Contact: mateusz@msalamon.pl
+  *
+  *      Website: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/
+  *      GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL
   */
 /* USER CODE END Header */
 
@@ -170,25 +177,20 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 {
 	if(GPIO_Pin == DS1307_INT_Pin)
 	{
-		HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_SET);
 		DS1307_ReceiveDateTimeDMA();
-		HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_RESET);
 	}
 }
 
 void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c)
-{HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_SET);
+{
 	DS1307_CalculateDateTime(&r);
-	HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_RESET);
 }
 #else
 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 {
 	if(GPIO_Pin == DS1307_INT_Pin)
 	{
-		HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_SET);
 		DS1307_GetDateTime(&r);
-		HAL_GPIO_WritePin(TEST_GPIO_Port, TEST_Pin, GPIO_PIN_RESET);
 	}
 }
 #endif