BBB - PRU C compiler

30 Apr 2014

Nice bit of information at this TI URL:

(My underlining below):

PRU Development

The Programmable Real-time Unit (PRU) is a low-latency microcontroller sub-system comprised of two or more 32-bit RISC processors, local instruction and data RAM, local peripherals and an interrupt controller. The PRU is efficient at handing events that have tight real-time constraints. The PRU is also known as the Industrial Communications Sub-System since it is used to enable industrial protocols such as EtherCATÂ, EtherNet/IPâ„¢, PROFINET, PROFIBUS, POWERLINK, SERCOS III, and others. Each 32-bit processor runs at 200MHz, enabling 5ns instruction cycle. Local peripherals within the PRU sub-system include UART, eCAP, MII_RT, MDIO and IEP. The PRUâ€s fast input and output pins enable detection and reaction to I/O events within two PRU cycles.

Code Composer Studio provides a C compiler enabling users to add differentiation to their products.

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Former Member over 8 years ago

Hi shabaz,

this is really a good news, thank you! Have you already tried to program PRU with this compiler? I'm wondering if it is possible to program only the PRU part of the sitara, keeping the rest managed by debian. Do you think it would be possible?
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shabaz over 8 years ago in reply to Former Member

Hi Carlo,

I did try the compiler, it worked well! I just did a simple loop, set it to unoptimized and visually inspected the assembler output. I have not yet tried to execute the code though.

As you say, it is definitely possible to use Code Composer just for the PRU portion, and do the rest using your favorite tools.

This was my input:

/*
* main.c
*/
int main(void) {
    int i;

    for (i=0; i<0x55; i++);
   
    return 0;
}

This was the output (the actual assembler instructions are on lines 45-97 approx.):

;******************************************************************************
;* PRU C/C++ Codegen                                              PC v2.0.0B2 *
;* Date/Time created: Mon May 05 13:07:54 2014                                *
;******************************************************************************
    .compiler_opts --abi=eabi --diag_wrap=off --endian=little --hll_source=on --object_format=elf --silicon_version=3 --symdebug:dwarf --symdebug:dwarf_version=3

$C$DW$CU    .dwtag  DW_TAG_compile_unit
    .dwattr $C$DW$CU, DW_AT_name("../main.c")
    .dwattr $C$DW$CU, DW_AT_producer("TI PRU C/C++ Codegen PC v2.0.0B2 Copyright (c) 2012-2014 Texas Instruments Incorporated")
    .dwattr $C$DW$CU, DW_AT_TI_version(0x01)
    .dwattr $C$DW$CU, DW_AT_comp_dir("C:\c_root\MySourceCode\ccs_workspace\pru-test\Release")
;    c:\ti\ccsv6\tools\compiler\pru_2.0.0B2\bin\acpiapru.exe -@C:\\Users\\shabaz\\AppData\\Local\\Temp\\1370812
    .sect    ".text:main"
    .clink
    .global    ||main||

$C$DW$1    .dwtag  DW_TAG_subprogram, DW_AT_name("main")
    .dwattr $C$DW$1, DW_AT_low_pc(||main||)
    .dwattr $C$DW$1, DW_AT_high_pc(0x00)
    .dwattr $C$DW$1, DW_AT_TI_symbol_name("main")
    .dwattr $C$DW$1, DW_AT_external
    .dwattr $C$DW$1, DW_AT_type(*$C$DW$T$10)
    .dwattr $C$DW$1, DW_AT_TI_begin_file("../main.c")
    .dwattr $C$DW$1, DW_AT_TI_begin_line(0x04)
    .dwattr $C$DW$1, DW_AT_TI_begin_column(0x05)
    .dwattr $C$DW$1, DW_AT_decl_file("../main.c")
    .dwattr $C$DW$1, DW_AT_decl_line(0x04)
    .dwattr $C$DW$1, DW_AT_decl_column(0x05)
    .dwattr $C$DW$1, DW_AT_TI_max_frame_size(0x04)
    .dwpsn    file "../main.c",line 4,column 16,is_stmt,address ||main||,isa 0

    .dwfde $C$DW$CIE, ||main||

;***************************************************************
;* FNAME: main                          FR SIZE:   4           *
;*                                                             *
;* FUNCTION ENVIRONMENT                                        *
;*                                                             *
;* FUNCTION PROPERTIES                                         *
;*                            4 Auto,  0 SOE     *
;***************************************************************

||main||:
;* --------------------------------------------------------------------------*
    .dwcfi    cfa_offset, 0
        SUB       r2, r2, 0x04          ; []
    .dwcfi    cfa_offset, 4
$C$DW$2    .dwtag  DW_TAG_variable, DW_AT_name("i")
    .dwattr $C$DW$2, DW_AT_TI_symbol_name("i")
    .dwattr $C$DW$2, DW_AT_type(*$C$DW$T$10)
    .dwattr $C$DW$2, DW_AT_location[DW_OP_breg8 0]
    .dwpsn    file "../main.c",line 7,column 7,is_stmt,isa 0
        LDI       r0, 0x0000            ; [] |7|
        SBBO      &r0, r2, 0, 4         ; [] |7| i
    .dwpsn    file "../main.c",line 7,column 12,is_stmt,isa 0
        XOR       r0.b3, r0.b3, 0x80    ; [] |7|
        LDI       r1, 0x0055            ; [] |7|
        XOR       r1.b3, r1.b3, 0x80    ; [] |7|
        QBLE      ||$C$L2||, r0, r1     ; [] |7|
;* --------------------------------------------------------------------------*
        LDI       r14, 0x0055           ; [] |7|
;* --------------------------------------------------------------------------*
;*   BEGIN LOOP ||$C$L1||
;*
;*   Loop source line                : 7
;*   Loop closing brace source line  : 7
;*   Known Minimum Trip Count        : 1
;*   Known Maximum Trip Count        : 4294967295
;*   Known Max Trip Count Factor     : 1
;* --------------------------------------------------------------------------*
||$C$L1||:   
    .dwpsn    file "../main.c",line 7,column 20,is_stmt,isa 0
        LBBO      &r0, r2, 0, 4         ; [] |7| i
        ADD       r0, r0, 0x01          ; [] |7|
        SBBO      &r0, r2, 0, 4         ; [] |7| i
    .dwpsn    file "../main.c",line 7,column 12,is_stmt,isa 0
        XOR       r0.b3, r0.b3, 0x80    ; [] |7|
        MOV       r1, r14               ; [] |7|
        XOR       r1.b3, r1.b3, 0x80    ; [] |7|
        QBGT      ||$C$L1||, r0, r1     ; [] |7|
;* --------------------------------------------------------------------------*
||$C$L2||:   
    .dwpsn    file "../main.c",line 9,column 2,is_stmt,isa 0
        ZERO      &r14, 4               ; [] |9|
    .dwpsn    file "../main.c",line 10,column 1,is_stmt,isa 0
        ADD       r2, r2, 0x04          ; []
    .dwcfi    cfa_offset, 0
$C$DW$3    .dwtag  DW_TAG_TI_branch
    .dwattr $C$DW$3, DW_AT_low_pc(0x00)
    .dwattr $C$DW$3, DW_AT_TI_return
        JMP       r3.w2                 ; []
    .dwattr $C$DW$1, DW_AT_TI_end_file("../main.c")
    .dwattr $C$DW$1, DW_AT_TI_end_line(0x0a)
    .dwattr $C$DW$1, DW_AT_TI_end_column(0x01)
    .dwendentry
    .dwendtag $C$DW$1


;******************************************************************************
;* TYPE INFORMATION                                                           *
;******************************************************************************
$C$DW$T$2    .dwtag  DW_TAG_unspecified_type
    .dwattr $C$DW$T$2, DW_AT_name("void")
$C$DW$T$4    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$4, DW_AT_encoding(DW_ATE_boolean)
    .dwattr $C$DW$T$4, DW_AT_name("bool")
    .dwattr $C$DW$T$4, DW_AT_byte_size(0x01)
$C$DW$T$5    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$5, DW_AT_encoding(DW_ATE_signed_char)
    .dwattr $C$DW$T$5, DW_AT_name("signed char")
    .dwattr $C$DW$T$5, DW_AT_byte_size(0x01)
$C$DW$T$6    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$6, DW_AT_encoding(DW_ATE_unsigned_char)
    .dwattr $C$DW$T$6, DW_AT_name("unsigned char")
    .dwattr $C$DW$T$6, DW_AT_byte_size(0x01)
$C$DW$T$7    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$7, DW_AT_encoding(DW_ATE_signed_char)
    .dwattr $C$DW$T$7, DW_AT_name("wchar_t")
    .dwattr $C$DW$T$7, DW_AT_byte_size(0x02)
$C$DW$T$8    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$8, DW_AT_encoding(DW_ATE_signed)
    .dwattr $C$DW$T$8, DW_AT_name("short")
    .dwattr $C$DW$T$8, DW_AT_byte_size(0x02)
$C$DW$T$9    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$9, DW_AT_encoding(DW_ATE_unsigned)
    .dwattr $C$DW$T$9, DW_AT_name("unsigned short")
    .dwattr $C$DW$T$9, DW_AT_byte_size(0x02)
$C$DW$T$10    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$10, DW_AT_encoding(DW_ATE_signed)
    .dwattr $C$DW$T$10, DW_AT_name("int")
    .dwattr $C$DW$T$10, DW_AT_byte_size(0x04)
$C$DW$T$11    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$11, DW_AT_encoding(DW_ATE_unsigned)
    .dwattr $C$DW$T$11, DW_AT_name("unsigned int")
    .dwattr $C$DW$T$11, DW_AT_byte_size(0x04)
$C$DW$T$12    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$12, DW_AT_encoding(DW_ATE_signed)
    .dwattr $C$DW$T$12, DW_AT_name("long")
    .dwattr $C$DW$T$12, DW_AT_byte_size(0x04)
$C$DW$T$13    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$13, DW_AT_encoding(DW_ATE_unsigned)
    .dwattr $C$DW$T$13, DW_AT_name("unsigned long")
    .dwattr $C$DW$T$13, DW_AT_byte_size(0x04)
$C$DW$T$14    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$14, DW_AT_encoding(DW_ATE_signed)
    .dwattr $C$DW$T$14, DW_AT_name("long long")
    .dwattr $C$DW$T$14, DW_AT_byte_size(0x08)
$C$DW$T$15    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$15, DW_AT_encoding(DW_ATE_unsigned)
    .dwattr $C$DW$T$15, DW_AT_name("unsigned long long")
    .dwattr $C$DW$T$15, DW_AT_byte_size(0x08)
$C$DW$T$16    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$16, DW_AT_encoding(DW_ATE_float)
    .dwattr $C$DW$T$16, DW_AT_name("float")
    .dwattr $C$DW$T$16, DW_AT_byte_size(0x04)
$C$DW$T$17    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$17, DW_AT_encoding(DW_ATE_float)
    .dwattr $C$DW$T$17, DW_AT_name("double")
    .dwattr $C$DW$T$17, DW_AT_byte_size(0x08)
$C$DW$T$18    .dwtag  DW_TAG_base_type
    .dwattr $C$DW$T$18, DW_AT_encoding(DW_ATE_float)
    .dwattr $C$DW$T$18, DW_AT_name("long double")
    .dwattr $C$DW$T$18, DW_AT_byte_size(0x08)
    .dwattr $C$DW$CU, DW_AT_language(DW_LANG_C)

;***************************************************************
;* DWARF CIE ENTRIES                                           *
;***************************************************************

$C$DW$CIE    .dwcie 14
    .dwcfi    cfa_register, 8
    .dwcfi    cfa_offset, 0
    .dwcfi    undefined, 0
    .dwcfi    undefined, 1
    .dwcfi    undefined, 2
    .dwcfi    undefined, 3
    .dwcfi    undefined, 4
    .dwcfi    undefined, 5
    .dwcfi    undefined, 6
    .dwcfi    undefined, 7
    .dwcfi    same_value, 8
    .dwcfi    same_value, 9
    .dwcfi    same_value, 10
    .dwcfi    same_value, 11
    .dwcfi    undefined, 12
    .dwcfi    undefined, 13
    .dwcfi    undefined, 14
    .dwcfi    undefined, 15
    .dwcfi    same_value, 16
    .dwcfi    same_value, 17
    .dwcfi    same_value, 18
    .dwcfi    same_value, 19
    .dwcfi    same_value, 20
    .dwcfi    same_value, 21
    .dwcfi    same_value, 22
    .dwcfi    same_value, 23
    .dwcfi    same_value, 24
    .dwcfi    same_value, 25
    .dwcfi    same_value, 26
    .dwcfi    same_value, 27
    .dwcfi    same_value, 28
    .dwcfi    same_value, 29
    .dwcfi    same_value, 30
    .dwcfi    same_value, 31
    .dwcfi    same_value, 32
    .dwcfi    same_value, 33
    .dwcfi    same_value, 34
    .dwcfi    same_value, 35
    .dwcfi    same_value, 36
    .dwcfi    same_value, 37
    .dwcfi    same_value, 38
    .dwcfi    same_value, 39
    .dwcfi    same_value, 40
    .dwcfi    same_value, 41
    .dwcfi    same_value, 42
    .dwcfi    same_value, 43
    .dwcfi    same_value, 44
    .dwcfi    same_value, 45
    .dwcfi    same_value, 46
    .dwcfi    same_value, 47
    .dwcfi    same_value, 48
    .dwcfi    same_value, 49
    .dwcfi    same_value, 50
    .dwcfi    same_value, 51
    .dwcfi    same_value, 52
    .dwcfi    same_value, 53
    .dwcfi    same_value, 54
    .dwcfi    same_value, 55
    .dwcfi    undefined, 56
    .dwcfi    undefined, 57
    .dwcfi    undefined, 58
    .dwcfi    undefined, 59
    .dwcfi    undefined, 60
    .dwcfi    undefined, 61
    .dwcfi    undefined, 62
    .dwcfi    undefined, 63
    .dwcfi    undefined, 64
    .dwcfi    undefined, 65
    .dwcfi    undefined, 66
    .dwcfi    undefined, 67
    .dwcfi    undefined, 68
    .dwcfi    undefined, 69
    .dwcfi    undefined, 70
    .dwcfi    undefined, 71
    .dwcfi    undefined, 72
    .dwcfi    undefined, 73
    .dwcfi    undefined, 74
    .dwcfi    undefined, 75
    .dwcfi    undefined, 76
    .dwcfi    undefined, 77
    .dwcfi    undefined, 78
    .dwcfi    undefined, 79
    .dwcfi    undefined, 80
    .dwcfi    undefined, 81
    .dwcfi    undefined, 82
    .dwcfi    undefined, 83
    .dwcfi    undefined, 84
    .dwcfi    undefined, 85
    .dwcfi    undefined, 86
    .dwcfi    undefined, 87
    .dwcfi    undefined, 88
    .dwcfi    undefined, 89
    .dwcfi    undefined, 90
    .dwcfi    undefined, 91
    .dwcfi    undefined, 92
    .dwcfi    undefined, 93
    .dwcfi    undefined, 94
    .dwcfi    undefined, 95
    .dwcfi    undefined, 96
    .dwcfi    undefined, 97
    .dwcfi    undefined, 98
    .dwcfi    undefined, 99
    .dwcfi    undefined, 100
    .dwcfi    undefined, 101
    .dwcfi    undefined, 102
    .dwcfi    undefined, 103
    .dwcfi    undefined, 104
    .dwcfi    undefined, 105
    .dwcfi    undefined, 106
    .dwcfi    undefined, 107
    .dwcfi    undefined, 108
    .dwcfi    undefined, 109
    .dwcfi    undefined, 110
    .dwcfi    undefined, 111
    .dwcfi    undefined, 112
    .dwcfi    undefined, 113
    .dwcfi    undefined, 114
    .dwcfi    undefined, 115
    .dwcfi    undefined, 116
    .dwcfi    undefined, 117
    .dwcfi    undefined, 118
    .dwcfi    undefined, 119
    .dwcfi    undefined, 120
    .dwcfi    undefined, 121
    .dwcfi    undefined, 122
    .dwcfi    undefined, 123
    .dwcfi    undefined, 124
    .dwcfi    undefined, 125
    .dwcfi    undefined, 126
    .dwcfi    undefined, 127
    .dwcfi    undefined, 128
    .dwcfi    undefined, 129
    .dwcfi    undefined, 130
    .dwcfi    undefined, 131
    .dwcfi    undefined, 132
    .dwcfi    undefined, 133
    .dwendentry

;***************************************************************
;* DWARF REGISTER MAP                                          *
;***************************************************************

$C$DW$4    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R0_b0")
    .dwattr $C$DW$4, DW_AT_location[DW_OP_reg0]
$C$DW$5    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R0_b1")
    .dwattr $C$DW$5, DW_AT_location[DW_OP_reg1]
$C$DW$6    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R0_b2")
    .dwattr $C$DW$6, DW_AT_location[DW_OP_reg2]
$C$DW$7    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R0_b3")
    .dwattr $C$DW$7, DW_AT_location[DW_OP_reg3]
$C$DW$8    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R1_b0")
    .dwattr $C$DW$8, DW_AT_location[DW_OP_reg4]
$C$DW$9    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R1_b1")
    .dwattr $C$DW$9, DW_AT_location[DW_OP_reg5]
$C$DW$10    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R1_b2")
    .dwattr $C$DW$10, DW_AT_location[DW_OP_reg6]
$C$DW$11    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R1_b3")
    .dwattr $C$DW$11, DW_AT_location[DW_OP_reg7]
$C$DW$12    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R2_b0")
    .dwattr $C$DW$12, DW_AT_location[DW_OP_reg8]
$C$DW$13    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R2_b1")
    .dwattr $C$DW$13, DW_AT_location[DW_OP_reg9]
$C$DW$14    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R2_b2")
    .dwattr $C$DW$14, DW_AT_location[DW_OP_reg10]
$C$DW$15    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R2_b3")
    .dwattr $C$DW$15, DW_AT_location[DW_OP_reg11]
$C$DW$16    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R3_b0")
    .dwattr $C$DW$16, DW_AT_location[DW_OP_reg12]
$C$DW$17    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R3_b1")
    .dwattr $C$DW$17, DW_AT_location[DW_OP_reg13]
$C$DW$18    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R3_b2")
    .dwattr $C$DW$18, DW_AT_location[DW_OP_reg14]
$C$DW$19    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R3_b3")
    .dwattr $C$DW$19, DW_AT_location[DW_OP_reg15]
$C$DW$20    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R4_b0")
    .dwattr $C$DW$20, DW_AT_location[DW_OP_reg16]
$C$DW$21    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R4_b1")
    .dwattr $C$DW$21, DW_AT_location[DW_OP_reg17]
$C$DW$22    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R4_b2")
    .dwattr $C$DW$22, DW_AT_location[DW_OP_reg18]
$C$DW$23    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R4_b3")
    .dwattr $C$DW$23, DW_AT_location[DW_OP_reg19]
$C$DW$24    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R5_b0")
    .dwattr $C$DW$24, DW_AT_location[DW_OP_reg20]
$C$DW$25    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R5_b1")
    .dwattr $C$DW$25, DW_AT_location[DW_OP_reg21]
$C$DW$26    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R5_b2")
    .dwattr $C$DW$26, DW_AT_location[DW_OP_reg22]
$C$DW$27    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R5_b3")
    .dwattr $C$DW$27, DW_AT_location[DW_OP_reg23]
$C$DW$28    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R6_b0")
    .dwattr $C$DW$28, DW_AT_location[DW_OP_reg24]
$C$DW$29    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R6_b1")
    .dwattr $C$DW$29, DW_AT_location[DW_OP_reg25]
$C$DW$30    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R6_b2")
    .dwattr $C$DW$30, DW_AT_location[DW_OP_reg26]
$C$DW$31    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R6_b3")
    .dwattr $C$DW$31, DW_AT_location[DW_OP_reg27]
$C$DW$32    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R7_b0")
    .dwattr $C$DW$32, DW_AT_location[DW_OP_reg28]
$C$DW$33    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R7_b1")
    .dwattr $C$DW$33, DW_AT_location[DW_OP_reg29]
$C$DW$34    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R7_b2")
    .dwattr $C$DW$34, DW_AT_location[DW_OP_reg30]
$C$DW$35    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R7_b3")
    .dwattr $C$DW$35, DW_AT_location[DW_OP_reg31]
$C$DW$36    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R8_b0")
    .dwattr $C$DW$36, DW_AT_location[DW_OP_regx 0x20]
$C$DW$37    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R8_b1")
    .dwattr $C$DW$37, DW_AT_location[DW_OP_regx 0x21]
$C$DW$38    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R8_b2")
    .dwattr $C$DW$38, DW_AT_location[DW_OP_regx 0x22]
$C$DW$39    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R8_b3")
    .dwattr $C$DW$39, DW_AT_location[DW_OP_regx 0x23]
$C$DW$40    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R9_b0")
    .dwattr $C$DW$40, DW_AT_location[DW_OP_regx 0x24]
$C$DW$41    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R9_b1")
    .dwattr $C$DW$41, DW_AT_location[DW_OP_regx 0x25]
$C$DW$42    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R9_b2")
    .dwattr $C$DW$42, DW_AT_location[DW_OP_regx 0x26]
$C$DW$43    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R9_b3")
    .dwattr $C$DW$43, DW_AT_location[DW_OP_regx 0x27]
$C$DW$44    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R10_b0")
    .dwattr $C$DW$44, DW_AT_location[DW_OP_regx 0x28]
$C$DW$45    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R10_b1")
    .dwattr $C$DW$45, DW_AT_location[DW_OP_regx 0x29]
$C$DW$46    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R10_b2")
    .dwattr $C$DW$46, DW_AT_location[DW_OP_regx 0x2a]
$C$DW$47    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R10_b3")
    .dwattr $C$DW$47, DW_AT_location[DW_OP_regx 0x2b]
$C$DW$48    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R11_b0")
    .dwattr $C$DW$48, DW_AT_location[DW_OP_regx 0x2c]
$C$DW$49    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R11_b1")
    .dwattr $C$DW$49, DW_AT_location[DW_OP_regx 0x2d]
$C$DW$50    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R11_b2")
    .dwattr $C$DW$50, DW_AT_location[DW_OP_regx 0x2e]
$C$DW$51    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R11_b3")
    .dwattr $C$DW$51, DW_AT_location[DW_OP_regx 0x2f]
$C$DW$52    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R12_b0")
    .dwattr $C$DW$52, DW_AT_location[DW_OP_regx 0x30]
$C$DW$53    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R12_b1")
    .dwattr $C$DW$53, DW_AT_location[DW_OP_regx 0x31]
$C$DW$54    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R12_b2")
    .dwattr $C$DW$54, DW_AT_location[DW_OP_regx 0x32]
$C$DW$55    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R12_b3")
    .dwattr $C$DW$55, DW_AT_location[DW_OP_regx 0x33]
$C$DW$56    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R13_b0")
    .dwattr $C$DW$56, DW_AT_location[DW_OP_regx 0x34]
$C$DW$57    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R13_b1")
    .dwattr $C$DW$57, DW_AT_location[DW_OP_regx 0x35]
$C$DW$58    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R13_b2")
    .dwattr $C$DW$58, DW_AT_location[DW_OP_regx 0x36]
$C$DW$59    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R13_b3")
    .dwattr $C$DW$59, DW_AT_location[DW_OP_regx 0x37]
$C$DW$60    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R14_b0")
    .dwattr $C$DW$60, DW_AT_location[DW_OP_regx 0x38]
$C$DW$61    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R14_b1")
    .dwattr $C$DW$61, DW_AT_location[DW_OP_regx 0x39]
$C$DW$62    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R14_b2")
    .dwattr $C$DW$62, DW_AT_location[DW_OP_regx 0x3a]
$C$DW$63    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R14_b3")
    .dwattr $C$DW$63, DW_AT_location[DW_OP_regx 0x3b]
$C$DW$64    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R15_b0")
    .dwattr $C$DW$64, DW_AT_location[DW_OP_regx 0x3c]
$C$DW$65    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R15_b1")
    .dwattr $C$DW$65, DW_AT_location[DW_OP_regx 0x3d]
$C$DW$66    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R15_b2")
    .dwattr $C$DW$66, DW_AT_location[DW_OP_regx 0x3e]
$C$DW$67    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R15_b3")
    .dwattr $C$DW$67, DW_AT_location[DW_OP_regx 0x3f]
$C$DW$68    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R16_b0")
    .dwattr $C$DW$68, DW_AT_location[DW_OP_regx 0x40]
$C$DW$69    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R16_b1")
    .dwattr $C$DW$69, DW_AT_location[DW_OP_regx 0x41]
$C$DW$70    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R16_b2")
    .dwattr $C$DW$70, DW_AT_location[DW_OP_regx 0x42]
$C$DW$71    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R16_b3")
    .dwattr $C$DW$71, DW_AT_location[DW_OP_regx 0x43]
$C$DW$72    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R17_b0")
    .dwattr $C$DW$72, DW_AT_location[DW_OP_regx 0x44]
$C$DW$73    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R17_b1")
    .dwattr $C$DW$73, DW_AT_location[DW_OP_regx 0x45]
$C$DW$74    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R17_b2")
    .dwattr $C$DW$74, DW_AT_location[DW_OP_regx 0x46]
$C$DW$75    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R17_b3")
    .dwattr $C$DW$75, DW_AT_location[DW_OP_regx 0x47]
$C$DW$76    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R18_b0")
    .dwattr $C$DW$76, DW_AT_location[DW_OP_regx 0x48]
$C$DW$77    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R18_b1")
    .dwattr $C$DW$77, DW_AT_location[DW_OP_regx 0x49]
$C$DW$78    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R18_b2")
    .dwattr $C$DW$78, DW_AT_location[DW_OP_regx 0x4a]
$C$DW$79    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R18_b3")
    .dwattr $C$DW$79, DW_AT_location[DW_OP_regx 0x4b]
$C$DW$80    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R19_b0")
    .dwattr $C$DW$80, DW_AT_location[DW_OP_regx 0x4c]
$C$DW$81    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R19_b1")
    .dwattr $C$DW$81, DW_AT_location[DW_OP_regx 0x4d]
$C$DW$82    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R19_b2")
    .dwattr $C$DW$82, DW_AT_location[DW_OP_regx 0x4e]
$C$DW$83    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R19_b3")
    .dwattr $C$DW$83, DW_AT_location[DW_OP_regx 0x4f]
$C$DW$84    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R20_b0")
    .dwattr $C$DW$84, DW_AT_location[DW_OP_regx 0x50]
$C$DW$85    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R20_b1")
    .dwattr $C$DW$85, DW_AT_location[DW_OP_regx 0x51]
$C$DW$86    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R20_b2")
    .dwattr $C$DW$86, DW_AT_location[DW_OP_regx 0x52]
$C$DW$87    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R20_b3")
    .dwattr $C$DW$87, DW_AT_location[DW_OP_regx 0x53]
$C$DW$88    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R21_b0")
    .dwattr $C$DW$88, DW_AT_location[DW_OP_regx 0x54]
$C$DW$89    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R21_b1")
    .dwattr $C$DW$89, DW_AT_location[DW_OP_regx 0x55]
$C$DW$90    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R21_b2")
    .dwattr $C$DW$90, DW_AT_location[DW_OP_regx 0x56]
$C$DW$91    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R21_b3")
    .dwattr $C$DW$91, DW_AT_location[DW_OP_regx 0x57]
$C$DW$92    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R22_b0")
    .dwattr $C$DW$92, DW_AT_location[DW_OP_regx 0x58]
$C$DW$93    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R22_b1")
    .dwattr $C$DW$93, DW_AT_location[DW_OP_regx 0x59]
$C$DW$94    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R22_b2")
    .dwattr $C$DW$94, DW_AT_location[DW_OP_regx 0x5a]
$C$DW$95    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R22_b3")
    .dwattr $C$DW$95, DW_AT_location[DW_OP_regx 0x5b]
$C$DW$96    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R23_b0")
    .dwattr $C$DW$96, DW_AT_location[DW_OP_regx 0x5c]
$C$DW$97    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R23_b1")
    .dwattr $C$DW$97, DW_AT_location[DW_OP_regx 0x5d]
$C$DW$98    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R23_b2")
    .dwattr $C$DW$98, DW_AT_location[DW_OP_regx 0x5e]
$C$DW$99    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R23_b3")
    .dwattr $C$DW$99, DW_AT_location[DW_OP_regx 0x5f]
$C$DW$100    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R24_b0")
    .dwattr $C$DW$100, DW_AT_location[DW_OP_regx 0x60]
$C$DW$101    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R24_b1")
    .dwattr $C$DW$101, DW_AT_location[DW_OP_regx 0x61]
$C$DW$102    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R24_b2")
    .dwattr $C$DW$102, DW_AT_location[DW_OP_regx 0x62]
$C$DW$103    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R24_b3")
    .dwattr $C$DW$103, DW_AT_location[DW_OP_regx 0x63]
$C$DW$104    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R25_b0")
    .dwattr $C$DW$104, DW_AT_location[DW_OP_regx 0x64]
$C$DW$105    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R25_b1")
    .dwattr $C$DW$105, DW_AT_location[DW_OP_regx 0x65]
$C$DW$106    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R25_b2")
    .dwattr $C$DW$106, DW_AT_location[DW_OP_regx 0x66]
$C$DW$107    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R25_b3")
    .dwattr $C$DW$107, DW_AT_location[DW_OP_regx 0x67]
$C$DW$108    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R26_b0")
    .dwattr $C$DW$108, DW_AT_location[DW_OP_regx 0x68]
$C$DW$109    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R26_b1")
    .dwattr $C$DW$109, DW_AT_location[DW_OP_regx 0x69]
$C$DW$110    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R26_b2")
    .dwattr $C$DW$110, DW_AT_location[DW_OP_regx 0x6a]
$C$DW$111    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R26_b3")
    .dwattr $C$DW$111, DW_AT_location[DW_OP_regx 0x6b]
$C$DW$112    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R27_b0")
    .dwattr $C$DW$112, DW_AT_location[DW_OP_regx 0x6c]
$C$DW$113    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R27_b1")
    .dwattr $C$DW$113, DW_AT_location[DW_OP_regx 0x6d]
$C$DW$114    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R27_b2")
    .dwattr $C$DW$114, DW_AT_location[DW_OP_regx 0x6e]
$C$DW$115    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R27_b3")
    .dwattr $C$DW$115, DW_AT_location[DW_OP_regx 0x6f]
$C$DW$116    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R28_b0")
    .dwattr $C$DW$116, DW_AT_location[DW_OP_regx 0x70]
$C$DW$117    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R28_b1")
    .dwattr $C$DW$117, DW_AT_location[DW_OP_regx 0x71]
$C$DW$118    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R28_b2")
    .dwattr $C$DW$118, DW_AT_location[DW_OP_regx 0x72]
$C$DW$119    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R28_b3")
    .dwattr $C$DW$119, DW_AT_location[DW_OP_regx 0x73]
$C$DW$120    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R29_b0")
    .dwattr $C$DW$120, DW_AT_location[DW_OP_regx 0x74]
$C$DW$121    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R29_b1")
    .dwattr $C$DW$121, DW_AT_location[DW_OP_regx 0x75]
$C$DW$122    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R29_b2")
    .dwattr $C$DW$122, DW_AT_location[DW_OP_regx 0x76]
$C$DW$123    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R29_b3")
    .dwattr $C$DW$123, DW_AT_location[DW_OP_regx 0x77]
$C$DW$124    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R30_b0")
    .dwattr $C$DW$124, DW_AT_location[DW_OP_regx 0x78]
$C$DW$125    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R30_b1")
    .dwattr $C$DW$125, DW_AT_location[DW_OP_regx 0x79]
$C$DW$126    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R30_b2")
    .dwattr $C$DW$126, DW_AT_location[DW_OP_regx 0x7a]
$C$DW$127    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R30_b3")
    .dwattr $C$DW$127, DW_AT_location[DW_OP_regx 0x7b]
$C$DW$128    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R31_b0")
    .dwattr $C$DW$128, DW_AT_location[DW_OP_regx 0x7c]
$C$DW$129    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R31_b1")
    .dwattr $C$DW$129, DW_AT_location[DW_OP_regx 0x7d]
$C$DW$130    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R31_b2")
    .dwattr $C$DW$130, DW_AT_location[DW_OP_regx 0x7e]
$C$DW$131    .dwtag  DW_TAG_TI_assign_register, DW_AT_name("R31_b3")
    .dwattr $C$DW$131, DW_AT_location[DW_OP_regx 0x7f]
    .dwendtag $C$DW$CU

Screenshot from Code Composer:

Former Member over 8 years ago in reply to shabaz

How do create a CCS project with the PRU as the target? In other words, how do I get CCS6.x to compile and generate PRU code? I already clicked on the option to install the PRU compiler in CCS...
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Former Member over 8 years ago in reply to shabaz

How do create a CCS project with the PRU as the target? In other words, how do I get CCS6.x to compile and generate PRU code? I already clicked on the option to install the PRU compiler in CCS...
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shabaz over 8 years ago in reply to Former Member

Hi Maddox,

If the PRU compiler is installed, then you can go to "Project"->"New CCS Project..."
The window shown below will appear, select the PRU tab as shown:

You may have to explore a bit, I don't really have much in the way of instructions, I only had a chance to try a simple loop program, and will try something more intensive at a later date.
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Former Member over 8 years ago in reply to shabaz

Thanks - this is probably a newbie question, but I don't have the option to target the beaglebone_black with my installation of CCS v6 - after a fair amount of googling, I still come up empty - could you kindly point me in the right direction? Did I miss something during the installation process?
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shabaz over 8 years ago in reply to Former Member

Hi Maddox,

I don't recall doing anything special during the install, but I could be mistaken.:-( My version is 6.0.0.00190 (click on Help->About) and if I click on Project->New Project I see the screenshot shown above. All I can suggest is to uninstall, and try installing again, just double-checking all options as you install, in case there was anything BBB or PRU related in the options.
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Former Member over 6 years ago in reply to Former Member

In case anyone comes across this question, I noticed that while installing the Code Composer Studio, at least the Sitara 32-bit ARM Processors compilers should be selected, since the BeagleBone SoC is from this family of processors.
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