scanf problem in EDk 9.1i (Microbaze)

Feb 20, 2008 6 Replies
M

Hi, How to read an integer from hyperterminal onto a microbaze using EDK 9.1i. Im trying it using scanf but its giving me errors.



here are the lines of code im trying to achieve the read.



scanf("%d",&var); xil_print("\r\n Entered %d \r\n",var);



I get the following errors,



At Local date and time: Wed Feb 20 15:08:33 2008 xbash -q -c "cd /cygdrive/d/SCANF/; /usr/bin/make -f system.make TestApp_Memory_program; exit;" started... mb-gcc -O2 TestApp_Memory/src/TestApp_Memory.c -o TestApp_Memory/ executable.elf \ -mno-xl-soft-mul -mxl-pattern-compare -mcpu=v6.00.a -Wl,-T - Wl,TestApp_Memory/src/TestApp_Memory_LinkScr.ld -g -I./ microblaze_0/include/ -L./microblaze_0/lib/ \


/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: region ilmb_cntlr_dlmb_cntlr is full (TestApp_Memory/executable.elf section .text)

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: region ilmb_cntlr_dlmb_cntlr is full (TestApp_Memory/executable.elf section .text)

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .init [00000050 ->
00000077] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .fini [00000078 ->
00000093] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .rodata [00000094 ->
00000cdf] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .data [00000ce0 ->
000013ff] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .ctors [00001400 ->
00001407] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .dtors [00001408 ->
0000140f] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze/



3.4.1/../../../../microblaze/bin/ld.real: section .jcr [00001410 ->
00001413] overlaps section .text [00000050 -> 00010293]

/cygdrive/c/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ccGEcfLD.o: In function `main':



/cygdrive/d/SCANF/TestApp_Memory/src/TestApp_Memory.c:85: undefined reference to `xil_print' collect2: ld returned 1 exit status



make: *** [TestApp_Memory/executable.elf] Error 1



Done!



Expecting a quick response



Thanks in advance


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J

You do not have enough code space to use scanf()...

Jan

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M

sing

:08:33 2008

-

Hi , I have assigned 64k of local memory. Is there an alternative to this problem im facing.

I want to be able to read intergers from the hyper terminal.

Thanks

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J

Allocate more memory or try iscanf, which is an integer only version of scanf, that should require less code space. (There should be iprintf too).

Cheers, Jon

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P

scanf and printf are monsters - they do everything but there is a huge amount of code. also, the Microblaze code is not very compact.

I needed to print and read some integers, so I just used simple functions that do just that. It should not take more than a couple hundred bytes... Something like this 1 minute example not guaranteed to work at all ;)

int fake_atoi( const char *c ) { int n = 0; while( isdigit( *c )) n = n*10 + (*c++ - '0'); return n; }

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M

re is a huge =A0

imple functions =A0

k at all ;)

Hi, Didnt find iscanf in the library. very reluctatntly chose reading in the number a digit at a time using XUartLite_RecvByte into an array and then converted that array to a number...

hope it holds well during the demo

Thanks guys MAx

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D

did it work?

can you post the code please

having the same issue

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