MC9S12G64 如何进入 STOP MODE

[songxiangli]

请问  MC9S12G64  STOP MODE   下静态电流有多大？如何正确进入STOP模式？ 实测有700uA，不知是否进入方式错误。

手册上48 和128 的 在30uA左右。

测试程序如下：

#include <hidef.h>
#include "derivative.h"

void main(void)
{

   DDRJ = 0;
   PERJ = 0;
   DDRP = 0;
   DDRT = 0;
   DDR01AD = 0;
   DDRS = 0;
   PERS = 0;
   DDRM = 0;
   //CPMUCLKS_PSTP = 1;
   //CPMUOSC_OSCE = 1;
   asm ANDCC #0x7F;
   asm STOP;
   while(1)
   {
   ;
   }
}

[dianabatrlova]

Hi,

Do you use NXP board or do you have your own design?

All measurements are without output loads, please refer to chapter A.3.1 Measurement Conditions.

Where did you measure it?

Also, the G240-API+STOP-CW51 example is available on this link: S12G Examples Pack 

There is enable ECLK signal for checking run/stop mode

I hope it helps you.

Best regards,

Diana

[songxiangli]

Hi,

  My design，IO is all input and  Pull Device all = 0.

   A.3.1 Measurement Conditions. 

MC9S12G64  is TBD，why ？

[dianabatrlova]

Hi,

Please refer to the actual reference manual.

I hope it helps you.

Best regards,

Diana

[songxiangli]

please help me。。。。

[songxiangli]

Hi

Now，program is ：

void main(void)
{

   DDRJ = 0xff;
   PERJ = 0;
   PTJ = 0;

   DDRP = 0xff;

   DDRT = 0xff;

   DDR01AD = 0;
   ATDDIEN = 0xffff;

   DDRS = 0xff;
   PERS = 0;

   DDRM = 0xff;
   PUCR = 0;

   CPMUPOSTDIV_POSTDIV = 0;
   CPMUCLKS_PSTP = 0;
   CPMUOSC_OSCE = 0;

   CPMUAPICTL_APIFE = 0;
   asm ANDCC #0x7F;
   asm STOP;
   while(1)
   {
   // Delay(10000);
   // PTJ = ~PTJ;
   }
}

same program，MC9S12G64  STOP MODE   current  measure is  250uA， But MC9S12G128 is 80uA，

so，what  the different  between ？