Tedd OKANO / Mbed 2 deprecated test_iap_20150205

small test code for IAP

Dependencies:   mbed

main.cpp@1:90c9fa3e7462, 2015-02-05 (annotated)

Committer:
okano
Date:
Thu Feb 05 08:07:05 2015 +0000
Revision:
1:90c9fa3e7462
Parent:
0:57ed1971604d
Child:
2:806eb710bbb0
correction for printf message and adding a comment on RAM address adjustment

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 0:57ed1971604d 1 #define TEST_ON_MBED
okano 0:57ed1971604d 2
okano 0:57ed1971604d 3 #ifdef TEST_ON_MBED
okano 0:57ed1971604d 4 #include "mbed.h"
okano 0:57ed1971604d 5 #else
okano 0:57ed1971604d 6 #include <lpc17xx.h>
okano 0:57ed1971604d 7 #include <absacc.h>
okano 0:57ed1971604d 8 #endif
okano 0:57ed1971604d 9
okano 0:57ed1971604d 10 void IAP_Write(void);
okano 0:57ed1971604d 11
okano 0:57ed1971604d 12 #ifdef TEST_ON_MBED
okano 0:57ed1971604d 13 unsigned char *a;
okano 0:57ed1971604d 14 unsigned char ram_buffer[ 5 + 3 ];
okano 0:57ed1971604d 15 #else
okano 0:57ed1971604d 16 unsigned char a[5] at(0x10000400);
okano 0:57ed1971604d 17 #endif
okano 0:57ed1971604d 18
okano 0:57ed1971604d 19 unsigned int command[ 5 ];
okano 0:57ed1971604d 20 unsigned int result[ 5 ];
okano 0:57ed1971604d 21 typedef void (*IAP)( unsigned int [], unsigned int[] );
okano 0:57ed1971604d 22
okano 0:57ed1971604d 23 IAP iap_entry = (IAP)0x1FFF1FF1;
okano 0:57ed1971604d 24
okano 0:57ed1971604d 25 #define FLASH_TARGET_ADDR ((char *)0x00008100)
okano 0:57ed1971604d 26
okano 0:57ed1971604d 27 int main(void)
okano 0:57ed1971604d 28 {
okano 0:57ed1971604d 29 unsigned char i = 0;
okano 0:57ed1971604d 30
okano 1:90c9fa3e7462 31 a = (unsigned char *)((unsigned long)ram_buffer & ~0x3); // to align to word boundary
okano 0:57ed1971604d 32
okano 0:57ed1971604d 33 for( i = 0; i < 5; i++ )
okano 0:57ed1971604d 34 a[ i ] = i;
okano 0:57ed1971604d 35
okano 0:57ed1971604d 36 for( i = 0; i < 5; i++ )
okano 1:90c9fa3e7462 37 printf( "RAM : *((char *)0x%08X) == 0x%02X\r\n", (unsigned long)a + i, *(a + i) );
okano 0:57ed1971604d 38
okano 0:57ed1971604d 39 IAP_Write();
okano 0:57ed1971604d 40
okano 0:57ed1971604d 41 char *cp = FLASH_TARGET_ADDR;
okano 0:57ed1971604d 42
okano 0:57ed1971604d 43 for( i = 0; i < 5; i++, cp++ )
okano 1:90c9fa3e7462 44 printf( "flash : *((char *)0x%08X) == 0x%02X\r\n", (unsigned long)cp, *cp );
okano 0:57ed1971604d 45 }
okano 0:57ed1971604d 46
okano 0:57ed1971604d 47 void IAP_Write(void)
okano 0:57ed1971604d 48 {
okano 0:57ed1971604d 49 command[0] = 50; // "prepare" cmmand
okano 0:57ed1971604d 50 command[1] = 8; // Start sector number is 8
okano 0:57ed1971604d 51 command[2] = 8; // Finish sector number is 8
okano 0:57ed1971604d 52 iap_entry( command, result );
okano 0:57ed1971604d 53
okano 0:57ed1971604d 54 printf( "error code for \"prepare\" = %d\r\n", result[ 0 ] );
okano 0:57ed1971604d 55
okano 0:57ed1971604d 56
okano 0:57ed1971604d 57 command[0] = 51; // "copy from ram to flash" command
okano 0:57ed1971604d 58 command[1] = (unsigned int)FLASH_TARGET_ADDR; // Addrees of Flash
okano 0:57ed1971604d 59 command[2] = (unsigned int)a; // Addrees of Sram
okano 0:57ed1971604d 60 command[3] = 256; // How many bytes want to transfer
okano 0:57ed1971604d 61 command[4] = 96000; // Frequency in khz
okano 0:57ed1971604d 62 iap_entry( command, result );
okano 0:57ed1971604d 63
okano 0:57ed1971604d 64 printf( "error code for \"copy from ram to flash\" = %d\r\n", result[ 0 ] );
okano 0:57ed1971604d 65 }