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ck
Joined: 02 May 2012
Posts: 18
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| read write program memory PIC24 |
 Posted: Fri Sep 21, 2012 7:14 am |
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Hi everybody,
I feel so stupid because i can't write and read a simple variable in my PIC24HJ.
I notice that no EEPROM figure out but i can write in a flash memory.
| Code: |
#define ROMCALOC 0x4000
#org ROMCALOC,0x4002 {}
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in to the main
| Code: |
int32 addr;
int8 data[2];
int8 data_r[2];
write_program_memory(addr,data,2); read_program_memory(addr,data_r,2);
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why it does not work??
Thanks in advance. |
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ck
Joined: 02 May 2012
Posts: 18
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| Posted: Mon Sep 24, 2012 3:36 am |
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Firstly thanks for all answers.
I understood how flash works and here is the solution.
| Code: |
#define CK_FLASH_END (getenv("PROGRAM_MEMORY")-1)
#define CK_FLASH_PAGE_SIZE (getenv("FLASH_ERASE_SIZE")/2)
#define CK_NUM_PAGES (CK_FLASH_END/CK_FLASH_PAGE_SIZE)
#define CK_USER_PAGE (CK_FLASH_PAGE_SIZE*(CK_NUM_PAGES-1))
#org CK_USER_PAGE,CK_FLASH_END {}
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in main code:
| Code: |
unsigned int8 read_data[8];
unsigned int8 write_data[] = {12,34,56,0,25,42,1,0};
write_program_memory(CK_USER_PAGE,write_data,8);
delay_ms(1);
read_program_memory(CK_USER_PAGE,read_data,8);
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P.S:CCS 4.134 |
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