Compilation Error 1

1.

Error message:

Liubo. S:1: Error:bad expression

Liubo. S:1: Error:junk at end of line, first unrecognized character is ' 0 '

Error:

. equ mem_control_address, #0x48000000 @ macro definition, storage Controller start address

. equ sdram_address, #0x30000000 @ macro definition, The start address of SDRAM

Correct:

. equ mem_control_address, 0x48000000 @ macro definition, storage Controller start address

. equ sdram_address, 0x30000000 @ macro definition, The start address of the SDRAM

Cause of Error:

Write one more #

2.

Error message:

Liubo. S:23:error:junk at end of line, first unrecognized character is ' * '

Error:

@**********************************

@ off-guard Dog @

**********

Error Correction:

@**********************************

@ off-guard Dog @

@**********

Cause of Error:

Forget to add @ before the comment

3.

Error message:

Liubo. S:29:error:immediate expression requires a # prefix--' mov pc,1r '

Error:

mov pc, 1r

Error Correction:

Mov PC, LR

Cause of Error:

In the Code L wrote a

4.

Error message:

Liubo. S:66:error:bad instruction ' Copy_steppingstone4k_to_sdram :'

Error:

Copy_steppingstone4k_to_sdram:

Error Correction:

Copy_steppingstone4k_to_sdram:

Cause of Error:

After the colon is written in the Chinese input method, should be English, English and the front letter spacing less

5.

Error message:

Liubo. S:70:error:junk at end of line, first unrecognized character is ' 1 '

Error:

1:

Error Correction:

1:

Cause of Error:

It is also because the colon is written in Chinese, so it is not recognized as a code snippet

6.

Error message:

/opt/friendlyarm/toolschain/4.4.3/bin/.arm-none-linux-gnueabi-ld:warning:cannot find entry symbol _start; Defaulting to 30000000

liubo_s.o:in function ' On_sdram ':

(. text+0x14): Undefined reference to ' main '

liubo_c.o:in function ' On_sdram ':

(. text+0x14): Undefined reference to ' main '

Error:

Arm-linux-gcc-c-O liubo_s.o liubo. S

Arm-linux-gcc-c-O liubo_s.o liubo. S

Error Correction:

Arm-linux-gcc-c-O liubo_s.o liubo. S

Arm-linux-gcc-c-O liubo_s.o liubo.c

Cause of Error:

The second one is wrong, it should be C file .

7.

Error message:

Liubo.c:14:error:stray ' \357 ' in program

Error:

/ /***********

Error Correction:

//***********

Cause of Error:

The same is the input method, the Chinese input under the interval is very large, and There is no color hint in the Gvim, in the English input method // There is a small interval of color hint.

Compilation Error 1