How can I use macro outl in nios2 uclinux?

[Altera_Forum]

hi : 

 I want to use macro( outl(data,address)) access pio directly.  so I include <asm/io.h>.but make fail. The erro information is:undefine ref outl.  But the macro outl is included in <asm/io.h>.  I am so puzzle.  How can I solve it? Thanks a lot.

[Altera_Forum]

--- Quote Start ---  originally posted by alex824@Apr 27 2006, 01:17 PM hi :  i want to use macro( outl(data,address)) access pio directly.  so i include <asm/io.h>.but make fail. the erro information is:undefine ref outl.  but the macro outl is included in <asm/io.h>.  i am so puzzle.  how can i solve it? thanks a lot. <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14737)  --- quote end ---    --- Quote End ---   add,# define __KERNEL__

[Altera_Forum]

Thanks hippo 

 I lost the "-" in D__KERNEL__ firster. so I make fail. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif   every one:  If you do not want to write driver for some simple device. You can use macro  outl , inl to control the device directly.  frist add "-D__KERNEL__ " to CFLAGS += in your makefile  second copy "nios2_system.h" from ~/linux2.6.x/include to your include dir    follow is my simple code: # ifndef __LED_H__# define __LED_H__ # include <asm/io.h> # include "board.h"  // define constants for LED status# define LED_ALL_OFF 0x00# define LED_ALL_ON 0xFF # define MAJ_LED_OFF (inl(LED_CTRL) & 0xFE)# define MAJ_LED_ON (inl(LED_CTRL) | 0x01) # define MIN_LED_OFF (inl(LED_CTRL) & 0xFD)# define MIN_LED_ON (inl(LED_CTRL) | 0x02) # define ACO_LED_OFF (inl(LED_CTRL) & 0xFB)# define ACO_LED_ON (inl(LED_CTRL) | 0x04)  void init_led(void); # endif # ifndef __BOARD_H__# define __BOARD_H__  // Main clck frequency.# define MCLK 50000000  // SDRAM area definition.# define SDRAM_BASE 0x01000000# define SDRAM_SIZE 0x01000000 // 16MBytes  //FALSH area definition# define FLASH_BASE 0x00000000# define FLASH_SIZE 0x00800000 // 8MBytes  // led Configuration Registers# define LED_CTRL 0x00810850  # endif # include "led.h"# include "board.h"  void init_led(void) {  outl(LED_ALL_ON, LED_CTRL);  }   int main(void) {  //init_msgQ();  init_led();    while(1)  {  outl(LED_ALL_OFF, LED_CTRL);     outl(MAJ_LED_ON, LED_CTRL);  sleep(1);  outl(MAJ_LED_OFF, LED_CTRL);  sleep(1);    outl(MIN_LED_ON, LED_CTRL);  sleep(1);  outl(MIN_LED_OFF, LED_CTRL);  sleep(1);    outl(ACO_LED_ON, LED_CTRL);  sleep(1);  outl(ACO_LED_OFF, LED_CTRL);  sleep(1);      } }

[Altera_Forum]

Hi, 

I use NiosII IDE. I add "-D__KERNEL__ " to CFLAGS += in my makefile. cope the nios2_system.h to the project.When build the target, the errors like follows: in inclusion d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/linux/config.h:4[d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/linux/linkage.h] mult line 4 May 7, 2006 8:27:23 PM linux/autoconf.h: No such file or directory[d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/linux/config.h] mult line 4 May 7, 2006 8:27:23 PM nios2_system.h: No such file or directory[d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/asm/nios.h] mult line 4 May 7, 2006 8:27:23 PM in inclusion d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/linux/linkage.h:4:[d:/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/include/linux/kernel.h] mult line 11 May 7, 2006 8:27:23 PM  If comment the# includd <asm/io.h>, all the errors like above disappeared . What is wrong ? Please give me help?Thank you very much!!

[Altera_Forum]

hi, zzh 

 did u copy the include files to your project ?  or specify the whole path http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

[Altera_Forum]

Copy & Paste does the job, too. You can even use the Altera HAL. 

well, it is just an idea...

[Altera_Forum]

copy & paste the macros from asm/io.h of course.

[Altera_Forum]

alex824, 

 Can you post a simple project on the wiki, or in the forum for us newbies to follow ?  A complete course code with suitable makefile (standalone) would be good.  Thanks.