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Hi, I have a problem to initialize variables defined in SDRAM. The SDRAM could be accessed by verifying that the values in SDRAM can be altered by typing any value on the memory window. However, it is not successful to initialize the data array via following description but I can write the values in the internal memory to SDRAM and read it back. static section ("seg_bank0") fract16 coefs[NUM_TAPS]={ #include "coefs.dat" }; where "seg_bank0" is defined in SDRAM. Furthermore, I also tried to use ".byte" directive to declare and initialize the data objects. Unfortunately, it doesn't work for the external memory. .section seg_bank0; .align 1; _coefs: .global _coefs; .type _coefs,STT_OBJECT; .byte = 0x57,0xFF,0x12,0xFD,0x62,0x0C,0x35,0x37,0x35,0x37,0x62,0x0C; .byte = 0x12,0xFD,0x57,0xFF; ._coefs.end: .align 1; I don't know why the initialization could be implemented by using "#include" or ".byte " for internal memeory but not for the external memory. Did I miss something should be noted? Look foraward to your response and thank you in advance. |
variable initialization in SDRAM
Started by ●February 5, 2004
