fixed sd_logger

Application/BSP/BSP_SDLogger.c

@@ -4,7 +4,7 @@
 #include "stdio.h"
 #include "string.h"
 
-uint8_t block_buffer[512] = {0};
+uint8_t block_buffer[2048] = {0};
 size_t block_buffer_index = 0;
 char file_name[20];
 
@@ -41,7 +41,7 @@ void BSP_SDLogger_Flush() {
     
         // open the file
         FIL file;
-        FRESULT res = f_open(&file, file_name, FA_WRITE);
+        FRESULT res = f_open(&file, file_name, FA_OPEN_APPEND | FA_WRITE );
         if (res != FR_OK) {
             ULOG_ERROR("Failed to open file %s", file_name);
         }
@@ -75,6 +75,7 @@ void  BSP_SDLogger_Write(char *data, size_t length) {
     if (length > remaining_size) {
         // write the remaining space to the buffer
         memcpy(&block_buffer[block_buffer_index], data, remaining_size);
+        block_buffer_index += remaining_size;
         // write the buffer to the file
         BSP_SDLogger_Flush();
         // write the remaining data to the buffer