Revision 11:8dfc3217d1ca, committed 2013-08-27

Comitter:

okano

Date:

Tue Aug 27 03:09:07 2013 +0000

Parent:

10:90bd46dadeb4

Child:

12:5a33b5d39792

Commit message:

more flexible transfer size

Changed in this revision

--- a/main.cpp	Sun Aug 25 20:50:45 2013 +0000
+++ b/main.cpp	Tue Aug 27 03:09:07 2013 +0000
@@ -1,3 +1,16 @@
+/**
+ *  Sample of ISP operation for NXP MCUs
+ *
+ *  @author  Akifumi (Tedd) OKANO, NXP Semiconductors
+ *  @version 1.0
+ *  @date    Aug-2013
+ *
+ *　　ISP
+ *
+ *
+ *
+ */
+
 #include    "mbed.h"
 #include    "target_table.h"
 
@@ -15,7 +28,8 @@
 #define     SECTOR_SIZE         4096
 #define     RAM_START_ADDRESS   0x10000000
 
-#define     RAM_WRITE_OFFSET    0x130
+//#define     RAM_WRITE_OFFSET    0x130
+#define     RAM_WRITE_OFFSET    0x200
 #define     RAM_WRITE_START     (RAM_START_ADDRESS + RAM_WRITE_OFFSET)
 #define     BYTES_PER_LINE      45
 #define     STR_BUFF_SIZE       64
@@ -40,7 +54,7 @@
 void    erase_sectors( int last_sector );
 int     write_binary_data( FILE *fp, int ram_size );
 void    initialize_uue_table( void );
-long    bin2uue( char *bin, char *str );
+long    bin2uue( char *bin, char *str, int size );
 int     get_flash_writing_size( int ram_size );
 void    add_isp_checksum( char *b );
 void    send_RAM_transfer_checksum( int checksum );
@@ -102,7 +116,7 @@
 
     erase_sectors( last_sector );
     write_binary_data( fp, tpp->ram_size );
-
+ 
     fclose( fp );
 
     printf( "\r\n  %s\r\n\r\n",
@@ -244,8 +258,9 @@
     initialize_uue_table();
 
     flash_writing_size  = get_flash_writing_size( ram_size );
-    lines_per_transfer=(((flash_writing_size / BYTES_PER_LINE) + 3) & ~0x3);
-    transfer_size=(lines_per_transfer * BYTES_PER_LINE);
+    //lines_per_transfer  = (((flash_writing_size / BYTES_PER_LINE) + 3) & ~0x3);
+    lines_per_transfer  = ((flash_writing_size / BYTES_PER_LINE) + 1);
+    transfer_size       = (((flash_writing_size + 11) / 12) * 12);
 
     //  char    b[ transfer_size ]; // this can be done in mbed-compiler. but I should do it in common way
 
@@ -269,9 +284,11 @@
         try_and_check( command_str, "0", 0 );
 
         for ( int i = 0; i < lines_per_transfer; i++ ) {
-            checksum   += bin2uue( b + (i * BYTES_PER_LINE), command_str );
+        
+            checksum   += bin2uue( b + (i * BYTES_PER_LINE), command_str, i == (lines_per_transfer - 1) ? (transfer_size % BYTES_PER_LINE) : BYTES_PER_LINE );
 
-//            printf( "  data -- %02d %s\r", i, command_str );
+            printf( "  data -- %02d %s\r", i, command_str );
+            printf( "  (%d)\r\n", i == (lines_per_transfer - 1) ? (transfer_size % BYTES_PER_LINE) : BYTES_PER_LINE );
 
             put_string( command_str );
 
@@ -312,15 +329,15 @@
 }
 
 
-long bin2uue( char *bin, char *str )
+long bin2uue( char *bin, char *str, int size )
 {
     unsigned long   v;
     long            checksum    = 0;
     int             strpos      = 0;
 
-    *(str + strpos++) = ' ' + BYTES_PER_LINE;
+    *(str + strpos++) = ' ' + size;
 
-    for ( int i = 0; i < BYTES_PER_LINE; i += 3 ) {
+    for ( int i = 0; i < size; i += 3 ) {
         checksum    += *(bin + i + 0) + *(bin + i + 1) + *(bin + i + 2);
         v   = (*(bin + i + 0) << 16) | (*(bin + i + 1) << 8) | (*(bin + i + 2) << 0);
         *(str + strpos++) = uue_table[ (v >> 18) & 0x3F ];