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I'm coming back, Hi guys, I have another question, now is about the dsk5402 reset and subsequent boot loading. My DSK has the MP/MC# pin grounded, and i'm loading the .out file using the parallel port. Reading the spra618 i find that the booloader sets the OVLY bit. under this condition my questions are: * at reset the PC is loaded with 0xff80. * when the c5402 bootloader (at 0xf800) is ejecuted? * in the .cmd file, this memory map corresponds to how is loaded by the computer the sections, or, how the bootloader will copy them ? * If the DSP first jumps to 0xff80 (actually internal ROM), where is the Interrupt table vector?. Below there is the command file i used. MEMORY { PAGE 0: EPROG: origin = 0x1400, len = 0x7c00 VECT: origin = 0xff80, len = 0x80 PAGE 1: USERREGS: origin = 0x60, len = 0x1c BIOSREGS: origin = 0x7c, len = 0x4 IDATA: origin = 0x80, len = 0x1380 EDATA: origin = 0x1400, len = 0x8000 EDATA1: origin = 0x9400, len = 0x4c00 } SECTIONS { .vectors: {} > VECT PAGE 0 .sysregs: {} > BIOSREGS PAGE 1 .trcinit: {} > EPROG PAGE 0 .gblinit: {} > EPROG PAGE 0 .bios: {} > EPROG PAGE 0 frt: {} > EPROG PAGE 0 .text: {} > EPROG PAGE 0 .cinit: {} > EPROG PAGE 0 .pinit: {} > EPROG PAGE 0 .sysinit: {} > EPROG PAGE 0 .bss: {} > IDATA PAGE 1 .far: {} > IDATA PAGE 1 .const: {} > IDATA PAGE 1 .switch: {} > IDATA PAGE 1 .sysmem: {} > IDATA PAGE 1 .cio: {} > IDATA PAGE 1 .MEM$obj: {} > IDATA PAGE 1 .sysheap: {} > IDATA PAGE 1 } Sincerelly, i don't understand of all this file (this is the hello.cmd included in the CCS tutorial). really, I need some help with this. Thanks, Alex Parrado |
dsk5402 bootloader
Started by ●July 11, 2003
