TMS320C5x DSP STARTER KIT USER'S GUIDE
TMS320C5x DSP STARTER KIT USER'S GUIDE TMS320C5x DSP STARTER KIT USER'S GUIDE
Getting Started2) Enter the following command to assemble try1.asm:dsk5a try1This command invokes the TMS320C5x DSK assembler. If the input fileextension is .asm (for example, try1.asm), you don’t have to specify theextension; the assembler uses .asm as the default. For more informationabout invoking the assembler, refer to Section 4.5.When you enter this command, the debugger creates an executable filecalled try1.dsk.3) To see a listing of errors and warnings that may have occurred duringassembly, assemble try1.asm with the –l option (lowercase L).dsk5a try1 –l4) This time, the assembler not only creates an executable file, it creates alisting file called try1.lst. The listing file is helpful because it contains a listof all unresolved symbols and opcodes.3-6
Getting StartedExample 3–2. Assembler Created List File try1.lst00001 –––– –––– ************************************************************************00002 –––– –––– *Saw–toothed Wave Generator *00003 –––– –––– * Ramp rate is determined by interrupt rate and step size. Ramp is made *00004 –––– –––– * by numerial rollover. No AIC initialization, using the default value.*00005 –––– –––– ************************************************************************00006 –––– –––– ; Declare memory–mapped registers and00007 –––– –––– ; program block address00008 –––– 0000 .mmregs ; Include memory map reg00009 –––– 080c .ps 0080ch ;00010 080c 7980 B XINT ; Set transmit interrupt vector080d 000000011 –––– 0a00 .ps 00a00h ;00012 –––– 0000 .entry ; Initial PC address>>>>> ENTRY POINT SET TO 0a0000013 0a00 bc00 LDP #0 ; Load Data Page for DXR (Zero)00014 0a01 7a80 CALL SP_init ; Call serial port initialize function0a02 000000015 0a03 0804 LAMM IMR ;00016 0a04 bfc0 OR #20h ; Unmask receive interrupt (XINT)0a05 002000017 0a06 8804 SAMM IMR ;00018 0a07 ae06 SPLK #0ffffh,IFR ; Clear pending interrupt0a08 ffff00019 0a09 b80a LOOP: ADD #10 ; Increment ACCU by 100020 0a0a 9321 SACL DXR,3 ; Shift ACCU left 3 bits when storing00021 0a0b be22 IDLE ; Wait for D/A interrupt00022 0a0c 7980 B LOOP ;0a0d 0a0900023 0a0e be3a XINT: RETE ; Re-enable interrupts00024 –––– –––– SP_init:00025 0a0f ae25 SPLK #01h,PRD ; Generate 10 MHz clock from TOUT to0a10 000100026 0a11 ae26 SPLK #20h,TCR ; support AIC master clock0a12 002000027 0a13 8b88 MAR *,AR0 ;00028 0a14 bf80 LACC #0080h ; Set 00000080h => ACC0a15 008000029 0a16 9821 SACH DXR ; Clear DXR00030 0a17 9005 SACL GREG ; Set GREG = 80h, >8000h memory = Global00031 0a18 bf08 LAR AR0,#0FFFFh ; AR0 point to global memory0a19 ffff00032 0a1a bec4 RPT #9999 ; Bring the BR low for 10000 cycles0a1b 270f00033 0a1c 1088 LACC *,0,AR0 ; (.5ms at 50ns)00034 0a1d 9805 SACH GREG ; Disable global memory00035 0a1e bf80 LACC #0008h ; Put serial port in reset and configure as0a1f 000800036 0a20 9022 SACL SPC ; burst mode, FSX input, and data length 16 bits00037 0a21 bf80 LACC #80c8h ;0a22 80c800038 0a23 9022 SACL SPC ; Bring the serial port out of reset00039 0a24 ef00 RET>>>>> FINISHED READING ALL FILES>>>>> ASSEMBLY COMPLETE: ERRORS:0 WARNINGS:0Overview of a Code Development and Debugging System3-7
- Page 1 and 2: TMS320C5xDSP Starter KitUser’s Gu
- Page 3 and 4: PrefaceRead This FirstAbout This Ma
- Page 5 and 6: Notational Conventions / Informatio
- Page 7 and 8: If You Need AssistanceIf You Need A
- Page 9 and 10: ContentsContentsPart I: Hands-On In
- Page 11: ContentsPart III: Debugger Descript
- Page 14 and 15: Running Title—Attribute Reference
- Page 16 and 17: Key Features1.1 Key FeaturesThis se
- Page 18 and 19: Memory1.3 MemoryThe ’C5x DSK is o
- Page 20 and 21: MemoryFigure 1-3. DSK to RS-232 Con
- Page 22 and 23: What You’ll Need2.1 What You’ll
- Page 24 and 25: What You’ll NeedDSK module connec
- Page 26 and 27: Step 2: Installing the DSK Software
- Page 28 and 29: Step 4: Modifying the PATH Statemen
- Page 30 and 31: Step 5: Verifying the InstallationI
- Page 32 and 33: Description of the DSK Assembler3.1
- Page 34 and 35: Developing Code for the DSK3.3 Deve
- Page 38 and 39: Getting Started5) Now you are ready
- Page 40 and 41: Creating DSK Assembler Source Files
- Page 42 and 43: Creating DSK Assembler Source Files
- Page 44 and 45: Creating DSK Assembler Source Files
- Page 46 and 47: Symbols4.3 SymbolsSymbols are used
- Page 48 and 49: Assembling Your Program4.5 Assembli
- Page 50 and 51: 4-12
- Page 52 and 53: Using the DSK Assembler Directives5
- Page 54 and 55: Directives That Define Sections5.2
- Page 56 and 57: Directives That Reference Other Fil
- Page 58 and 59: Directives That Initialize Memory5.
- Page 60 and 61: Miscellaneous Directives5.6 Miscell
- Page 62 and 63: .byte/.stringDirectives ReferenceSy
- Page 64 and 65: .copy/.includeDirectives ReferenceL
- Page 66 and 67: .endDirectives ReferenceSyntax.endD
- Page 68 and 69: .float/.bfloat/.double/.efloat/.tfl
- Page 70 and 71: .if/.else/.endifDirectives Referenc
- Page 72 and 73: .liston/.listoffDirectives Referenc
- Page 74 and 75: .lqxx/.qxxDirectives ReferenceSynta
- Page 76 and 77: .mmregsDirectives ReferenceTable 5-
- Page 78 and 79: .setDirectives ReferenceSyntax symb
- Page 80 and 81: .spaceDirectives ReferenceListing f
- Page 82 and 83: .text / .psDirectives ReferenceExam
- Page 84 and 85: 5-34
Getting StartedExample 3–2. Assembler Created List File try1.lst00001 –––– –––– ************************************************************************00002 –––– –––– *Saw–toothed Wave Generator *00003 –––– –––– * Ramp rate is determined by interrupt rate and step size. Ramp is made *00004 –––– –––– * by numerial rollover. No AIC initialization, using the default value.*00005 –––– –––– ************************************************************************00006 –––– –––– ; Declare memory–mapped registers and00007 –––– –––– ; program block address00008 –––– 0000 .mmregs ; Include memory map reg00009 –––– 080c .ps 0080ch ;00010 080c 7980 B XINT ; Set transmit interrupt vector080d 000000011 –––– 0a00 .ps 00a00h ;00012 –––– 0000 .entry ; Initial PC address>>>>> ENTRY POINT SET TO 0a0000013 0a00 bc00 LDP #0 ; Load Data Page for DXR (Zero)00014 0a01 7a80 CALL SP_init ; Call serial port initialize function0a02 000000015 0a03 0804 LAMM IMR ;00016 0a04 bfc0 OR #20h ; Unmask receive interrupt (XINT)0a05 002000017 0a06 8804 SAMM IMR ;00018 0a07 ae06 SPLK #0ffffh,IFR ; Clear pending interrupt0a08 ffff00019 0a09 b80a LOOP: ADD #10 ; Increment ACCU by 100020 0a0a 9321 SACL DXR,3 ; Shift ACCU left 3 bits when storing00021 0a0b be22 IDLE ; Wait for D/A interrupt00022 0a0c 7980 B LOOP ;0a0d 0a0900023 0a0e be3a XINT: RETE ; Re-enable interrupts00024 –––– –––– SP_init:00025 0a0f ae25 SPLK #01h,PRD ; Generate 10 MHz clock from TOUT to0a10 000100026 0a11 ae26 SPLK #20h,TCR ; support AIC master clock0a12 002000027 0a13 8b88 MAR *,AR0 ;00028 0a14 bf80 LACC #0080h ; Set 00000080h => ACC0a15 008000029 0a16 9821 SACH DXR ; Clear DXR00030 0a17 9005 SACL GREG ; Set GREG = 80h, >8000h memory = Global00031 0a18 bf08 LAR AR0,#0FFFFh ; AR0 point to global memory0a19 ffff00032 0a1a bec4 RPT #9999 ; Bring the BR low for 10000 cycles0a1b 270f00033 0a1c 1088 LACC *,0,AR0 ; (.5ms at 50ns)00034 0a1d 9805 SACH GREG ; Disable global memory00035 0a1e bf80 LACC #0008h ; Put serial port in reset and configure as0a1f 000800036 0a20 9022 SACL SPC ; burst mode, FSX input, and data length 16 bits00037 0a21 bf80 LACC #80c8h ;0a22 80c800038 0a23 9022 SACL SPC ; Bring the serial port out of reset00039 0a24 ef00 RET>>>>> FINISHED READING ALL FILES>>>>> ASSEMBLY COMPLETE: ERRORS:0 WARNINGS:0Overview of a Code Development and Debugging System3-7
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