您好,我将中断向量表分配到地址 0x00001C00处,并将中断向量表地址寄存器指向了它
MEMORY
{
VECTORS o = 0x00001C00 l = 0x00000400 /*中断向量表*/
}
SECTIONS {
.vecs > VECTORS
}
然后调试时不能加载设备,出现如下错误
C674X_0: Trouble Writing Memory Block at 0x80001e20 on Page 0 of Length 0x54: (Error -1190 @ 0x1C00) Unable to access device memory. Verify that the memory address is in valid memory. If error persists, confirm configuration, power-cycle board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.0.747.0)C674X_0: GEL: File: D:\TI\workspace_v5_2\interrupt_test\Debug\interrupt_test.out: Load failed.
C674X_0: Error: (Error -1190 @ 0x0) Unable to access device memory. Verify that the memory address is in valid memory. If error persists, confirm configuration, power-cycle board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.0.747.0)
我查看.map文件,发现.text中的intvecs.obj (.text)起始地址0x80001e00,长度0x20,跟错误中显示的地址有关。.cinit起始地址0x80001e20,长度0x54跟提示错误对应。我如果直接将.vec放进share RAM中而不给他手动分配地址就不会出现任何错误
.text 0 80001000 00000e20
80001000 000007e0 init.obj (.text)
800017e0 00000160 test interrupt.obj (.text)
80001940 00000100 rts6740.lib : autoinit.obj (.text:__auto_init)
80001a40 000000e0 : exit.obj (.text:_exit)
80001b20 000000a0 : cpy_tbl.obj (.text:_copy_in)
80001bc0 000000a0 : memcpy64.obj (.text:_memcpy)
80001c60 000000a0 test interrupt.obj (.text:retain)
80001d00 00000080 rts6740.lib : boot.obj (.text:_c_int00)
80001d80 00000040 : args_main.obj (.text:__args_main)
80001dc0 00000020 : _lock.obj (.text:__nop)
80001de0 00000020 : exit.obj (.text:_abort)
80001e00 00000020 intvecs.obj (.text)
.cinit 0 80001e20 00000054 80001e20 0000002c rts6740.lib : exit.obj (.cinit)
80001e4c 00000004 –HOLE– [fill = 0]
80001e50 0000001c : _lock.obj (.cinit)
80001e6c 00000004 –HOLE– [fill = 0]
80001e70 00000004 (.pad.cinit) [fill = 0]
GLOBAL SYMBOLS: SORTED ALPHABETICALLY BY Name
address name
——– —-
80001e20 ___cinit__
80001e20 ___etext__
请问这错误是什么原因引起的?我如果直接将.vec放进share RAM中就不会出现任何错误
Shine:
你好,
0x1c00处地址是reserved memory, 不能用. 你可以看一下手册上的memory map.http://www.ti.com/lit/ds/symlink/tms320c6748.pdf