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Hello for All,
I had received from Keith Larson the beta DSK3A. I had coded
me test program (write in loop 5152h in SRAM F00000),
with the DSK3A and at hand,
as below:
0x00000000 0040
; for jump after Reset to 40h
0x00000001 0000
spare 0x00000040 00F0 ldp @F00000,DP 0x00000041 0870 ;the DSK3A toll me here 5070 as in TMS320C4x (what is the correct ?) 0x00000042 5152 ldi 5152h,AR0 0x00000043 0868 0x00000044 0000 sti AR0,@0000h 0x00000045 1528 0x00000046 0040 br 000040h 0x00000047 6000 After execution, I put the TMS320C32 in Hold and read the SRAM, but do no read 5152 as I had spected. The access to read the FLASH programed, and read/write on the SRAM is correct ! Me Questions are: - is me test program correcty codified ? - Need to init some registers for run it ? Thank in advance, Madrid Spain |
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Assembler (2).
Started by ●October 30, 2001
Reply by ●November 1, 20012001-11-01
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Hello Leonardo You have a few problems with your code (see below), but more embarassingly I have either not included or have disabled the C32 command line options for DSK3A. Not to worry though, a second utlity (DSK3LOAD) can be used to create the C32 header information that needs to be in the HEX file. Finaly you will probably want to use HEX2ROM to create a ROM file suitable for your ROM burner. Use the example below to assemble TEST.ASM, call DSK3LOAD (to make a C32 compatible HEX) and finaly HEX2ROM to create the ROM file. Sorry for the realy long command line for DSK3LOAD. As for your code, when you entered " LDP @F00000" you would have gotten an error and the DSK file would have been partialy built. The problem here is that 'F0000' starts with a non-numberic or Alpha key. This in turn causes the analyzer to view this as a named label or variable and not a number. The other problem would have been the branch instruction that would have sent the CPU trying to execute code at 0x40! Finaly, the DSK file does not have header information at the front of it. Instead you want to be looking at a HEX file. Valid and invalid numeric entry ------------------------------- LDP @NAME_0 ; value of variable 'NAME_0' (unknown) LDP @ABCD ; value of variable 'ABCD' (unknown) LDP @0ABCD00 ; value of '0ABCD' but radix==? (unknown) LDP @0xABCD00 ; This works, DP=0xAB Creating TEST.DSK, TEST.HEX and ROM files ----- C:\DSK3\DSK3\dsk3a TEST.ASM C:\DSK3\DSK3\dsk3load test file2hex c32 WS=7 IOSTRB=0x123 STRB0=0x456 STRB1=0x789 noload C:\DSK3\DSK3\hex2rom c32 After HEX2ROM starts, enter the filename by first hitting the 'F' key. Then select a single ROM of 16 bits width, output format etc... .start "TEST",0x809800 ; Runtime address will be .sect "TEST" ; assembled into TEST .entry LOOP ; LOOP ldp @0F00000h ; ldi 5152,AR0 br LOOP FILE2HEX_C32 0x00000008 Bus Width 0x00000123 IOSTRB 0x00000456 STRB0 0x00000789 STRB1 0x00000001 Dummy Section size 0x00809800 Dummy Start Address 0x0010f800 Dummy STRBx ctrl 0x00000000 Dummy Data 0x00000003 Section Size 0x00809800 Start Address 'TEST' 0x0010f800 STRBx ctrl 0x507000f0 0x08681420 0x60809800 0x00000000 Terminate Load ============================================= At 11:21 PM 10/30/01 +0100, you wrote: Hello for All, I had received from Keith Larson the beta DSK3A. I had coded me test program (write in loop 5152h in SRAM F00000), with the DSK3A and at hand, as below: 0x00000000 0040 ; for jump after Reset to 40h 0x00000001 0000 spare 0x00000040 00F0 ldp @F00000,DP 0x00000041 0870 ;DSK3A toll me here 5070 as in TMS320C4x (what is the correct ?) 0x00000042 5152 ldi 5152h,AR0 0x00000043 0868 0x00000044 0000 sti AR0,@0000h 0x00000045 1528 0x00000046 0040 br 000040h 0x00000047 6000 After execution, I put the TMS320C32 in Hold and read the SRAM, but do no read 5152 as I had spected. The access to read the FLASH programed, and read/write on the SRAM is correct ! Me Questions are: - is me test program correcty codified ? - Need to init some registers for run it ? Thank in advance, Leonardo Padial, Madrid Spain |
