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Hi all, I'm using the C6711DSK. When I try to allocate the .text section to external SDRAM I get 3 of the following errors: >> error: relocation overflow occured at address 0x00000080 in section 'vectors' of input file 'C:\ti\myprojects\mp3decoder\vectors.obj'. The 32-bit PC-relative displacement -536865758 at this location is too large to fit into the 21-bit PC-Relative field; the destination address is too far away from the instruction. You may need to add a mask to the assembly instruction or use other target specific assembly features if you really only need the lowest 21 bits of this symbol. Please see the section on Relocation in the Assembly User's Guide. I don't get these errors when allocating the .text section to IRAM. I've attached my cmd file and an extract of the vectors.asm file below. I would appreciate it if you could help me. Thank you. Melanie CMD FILE ======== -l rts6700.lib MEMORY { vecs: o = 00000000h l = 00000200h IRAM: o = 00000200h l = 0000FE00h CE0: o = 80000000h l = 01000000h } SECTIONS { "vectors" > 0h .cinit > IRAM .text > IRAM /*CE0*/ .stack > IRAM .bss > IRAM .const > IRAM .data > IRAM .far > CE0 /*IRAM*/ .switch > IRAM .sysmem > IRAM .tables > IRAM .cio > IRAM .sdram > CE0 mydata > CE0 } VECTOR.ASM FILE (extract) =============== .ref _mcbsp0_rx_intr .ref _usb_rx .ref _c_int00 .sect "vectors" RESET_RST: b _c_int00 NOP NOP NOP NOP NOP NOP NOP NMI_RST: NOP NOP NOP NOP NOP NOP NOP NOP RESV1: NOP NOP NOP NOP NOP NOP NOP NOP RESV2: NOP NOP NOP NOP NOP NOP NOP NOP INT4: b _usb_rx NOP NOP NOP NOP NOP NOP NOP INT8: b _mcbsp0_rx_intr NOP NOP NOP NOP NOP NOP NOP |
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Problem with vector.asm
Started by ●November 18, 2003
Reply by ●November 18, 20032003-11-18
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Melanie- > I'm using the C6711DSK. When I try to allocate the .text section to > external SDRAM I get 3 of the following errors: > > >> error: relocation overflow occured at address 0x00000080 in > section 'vectors' of input > file 'C:\ti\myprojects\mp3decoder\vectors.obj'. > The 32-bit PC-relative displacement -536865758 at this location is > too large to fit into the 21-bit PC-Relative field; the destination > address is too far away from the instruction. You may need to add a > mask to the assembly instruction or use other target specific > assembly features if you really only need the lowest 21 bits of > this symbol. Please see the section on Relocation in the Assembly > User's Guide. SDRAM is at 0x80000000 in the DSK board memory map, way more than 21 bits away from onchip SRAM and beyond the C6xxx capability for single-instruction jump. But you can still get there if you use a register to hold the target address. Here is a relevant answer from P Ligander that pops up if you do a quick archive search for "21-bit": http://groups.yahoo.com/group/c6x/message/1538 Jeff Brower system engineer Signalogic > I don't get these errors when allocating the .text section to IRAM. > I've attached my cmd file and an extract of the vectors.asm file > below. > > I would appreciate it if you could help me. > Thank you. > Melanie > > CMD FILE > ======== > -l rts6700.lib > > MEMORY > { > vecs: o = 00000000h l = 00000200h > IRAM: o = 00000200h l = 0000FE00h > CE0: o = 80000000h l = 01000000h > } > > SECTIONS > { > "vectors" > 0h > .cinit > IRAM > .text > IRAM /*CE0*/ > .stack > IRAM > .bss > IRAM > .const > IRAM > .data > IRAM > .far > CE0 /*IRAM*/ > .switch > IRAM > .sysmem > IRAM > .tables > IRAM > .cio > IRAM > .sdram > CE0 > mydata > CE0 > } > > VECTOR.ASM FILE (extract) > =============== > .ref _mcbsp0_rx_intr > .ref _usb_rx > .ref _c_int00 > > .sect "vectors" > > RESET_RST: > b _c_int00 > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > NMI_RST: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > RESV1: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > RESV2: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > INT4: > b _usb_rx > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > INT8: > b _mcbsp0_rx_intr > NOP > NOP > NOP > NOP > NOP > NOP > NOP |
Reply by ●November 18, 20032003-11-18
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Melanie- > I'm using the C6711DSK. When I try to allocate the .text section to > external SDRAM I get 3 of the following errors: > > >> error: relocation overflow occured at address 0x00000080 in > section 'vectors' of input > file 'C:\ti\myprojects\mp3decoder\vectors.obj'. > The 32-bit PC-relative displacement -536865758 at this location is > too large to fit into the 21-bit PC-Relative field; the destination > address is too far away from the instruction. You may need to add a > mask to the assembly instruction or use other target specific > assembly features if you really only need the lowest 21 bits of > this symbol. Please see the section on Relocation in the Assembly > User's Guide. SDRAM is at 0x80000000 in the DSK board memory map, way more than 21 bits away from onchip SRAM and beyond the C6xxx capability for single-instruction jump. But you can still get there if you use a register to hold the target address. Here is a relevant answer from P Ligander that pops up if you do a quick archive search for "21-bit": http://groups.yahoo.com/group/c6x/message/1538 Jeff Brower system engineer Signalogic > I don't get these errors when allocating the .text section to IRAM. > I've attached my cmd file and an extract of the vectors.asm file > below. > > I would appreciate it if you could help me. > Thank you. > Melanie > > CMD FILE > ======== > -l rts6700.lib > > MEMORY > { > vecs: o = 00000000h l = 00000200h > IRAM: o = 00000200h l = 0000FE00h > CE0: o = 80000000h l = 01000000h > } > > SECTIONS > { > "vectors" > 0h > .cinit > IRAM > .text > IRAM /*CE0*/ > .stack > IRAM > .bss > IRAM > .const > IRAM > .data > IRAM > .far > CE0 /*IRAM*/ > .switch > IRAM > .sysmem > IRAM > .tables > IRAM > .cio > IRAM > .sdram > CE0 > mydata > CE0 > } > > VECTOR.ASM FILE (extract) > =============== > .ref _mcbsp0_rx_intr > .ref _usb_rx > .ref _c_int00 > > .sect "vectors" > > RESET_RST: > b _c_int00 > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > NMI_RST: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > RESV1: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > RESV2: > NOP > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > INT4: > b _usb_rx > NOP > NOP > NOP > NOP > NOP > NOP > NOP > > INT8: > b _mcbsp0_rx_intr > NOP > NOP > NOP > NOP > NOP > NOP > NOP |
