diff --git a/Core/Src/ds1307.c b/Core/Src/ds1307.c
index 3dd6f98..fa84b81 100644
--- a/Core/Src/ds1307.c
+++ b/Core/Src/ds1307.c
@@ -85,12 +85,11 @@ uint8_t ds1307_write_user_RAM(uint8_t addr, uint8_t * data, uint8_t len){
 
 	for(uint8_t i = 0; i < len; i++){
 
-		buff[1+i] = *(data+i);
+		ds1307_write_byte(addr + i, *(data + i));
+		HAL_Delay(5);
 
 	}
 
-		// ds1307_write_byte(addr + i, *(data + i));
-		HAL_I2C_Master_Transmit(&DS1307_HANDLER, DS1307_ADDRES << 1, buff, len + 1, DS1307_TIMEOUT);
 
 	return status;
 }
diff --git a/Core/Src/myComms.c b/Core/Src/myComms.c
index e89a257..60acb7d 100644
--- a/Core/Src/myComms.c
+++ b/Core/Src/myComms.c
@@ -35,7 +35,7 @@ typedef struct {
 } uartMessage_s;
 
 static void cmd_readNV(uint32_t data);
-static void cmd_writeNV(uint8_t * data);
+static void cmd_writeNV(uint8_t data);
 
 static uint8_t nok[] = "NOK\n";
 static uint8_t ok[] = "OK\n";
@@ -73,11 +73,11 @@ static void cmd_readNV(uint32_t data){
 	}
 }
 
-static void cmd_writeNV(uint8_t * data){
+static void cmd_writeNV(uint8_t data){
 	HAL_StatusTypeDef status = HAL_ERROR;
 
 
-	status = ds1307_write_user_RAM(data[0], &data[1], 3);
+	status = ds1307_write_user_RAM(UART_RxBuf[1], &UART_RxBuf[2], 3);
 
 	if(HAL_OK == status){
 		CDC_Transmit_FS(ok, sizeof(ok));