How to program KL16 flash sector.

[Shawn_Lee]

Hey guys!

I'm making an IC programmer to support this device. And I have reference this Manual.

http://cache.freescale.com/files/microcontrollers/doc/ref_manual/KL16P80M48SF4RM.pdf

Now I can already use SWD interface to read IDR register in MDM-AP.

The problem is how to program KL16 flash sector.

Thank you for your help,

Regarts!

[kerryzhou]

Hi Shawn Lee,

    Thank you for your question in our community.

    Actually,  about the program flash sector, we have an application AN4835 for your reference:

http://cache.freescale.com/files/microcontrollers/doc/app_note/AN4835.pdf?fromsite=zh-Hans

  You can find program section in 4.3.1.

  Wish it helps you!

If you still have question, please let me know!

Have a great day,
Jingjing

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[Shawn_Lee]

您好 JingJing Zhong,

谢谢你的回覆，我已经看了附加的文档了。

在文档中4.3.1写到，要将欲写入的Data写入FlexRAM，再透过SWD写入FCCOB命令、清除CCIF。

但在KL16P80M48SF4RM.pdf中4.2提到：

我尝试访问过FCCOB，但是我写入Data后，再将Data读取出来却没有变化。我希望有一个正确的方向，谢谢!

[kerryzhou]

Hi Shawn Lee,

      请问你是使用什么通过SWD给KL16芯片编程的呢？ 是基于什么平台？

     另外，你访问FCCOB的具体过程是怎样的呢?

      SWD编程这块内容涉及到ARM内核的控制，我已经向相关专家请教，看是否有一些参考例程可以给出，目前正在等待他们的回复。

     一旦有结果，我就会告诉你，所以还请耐心等待下。

Regards，

Jingjing

[Shawn_Lee]

您好 JingJing Zhong,

我是使用自家生产的IC programmer 透过KL16的AHB-AP 访问FCCOB的，具体的方法在ARM的手册里有写到，

在KL16P80M48SF4RM.pdf的Figure 9.1 也有相关的说明。目前我只能透过AHB-AP存取SRAM，和读取整个System Memory。参考KL16P80M48SF4RM.pdf中4.2 的System Memory Map，可见AHB-AP似乎没有权限对FCCOB写入Data，所以才希望freescale提供其他方法或例程来存取Data。希望能早点得到回覆，谢谢!!

[kerryzhou]

Shawn Lee, 您好！

      我看了昨天推荐你的AN4835文档，

还有

所以，可以知道FTFA是不支持program section command的，而FTFA就是KL系列的Flash模块。你能否用program longword试试，看是否可以直接操作flash?

在SWD工程师回复我之前，你可以先试试program longword命令。

另外，可以告诉我你刚贴的AHB-AP图的文档具体名称吗？

Jingjing

[Shawn_Lee]

您好 JingJing Zhong,

U32 FlashCmdSeq(U8 cmd_code,     //command code

                      FlashCmdSeq_ADDR ADDR,     //address

                      FlashCmdSeq_DATA WtoWr,     //word to write

                      U8 index)     //command count

{

  U8 counter,err;

  err=E_OK;

  for(counter=0; counter<index; counter++)

  {

  switch (counter)

       {

             case 0: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB0);

                           err=SWDWrAPReg(ahbap_rw_DRW, cmd_code);

                             break;

             case 1: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB1);

                          err=SWDWrAPReg(ahbap_rw_DRW, ADDR.Addr24_16);

                             break;

             case 2: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB2);

                          err=SWDWrAPReg(ahbap_rw_DRW, ADDR.Addr15_8);

                             break;

             case 3: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB3);

                           err=SWDWrAPReg(ahbap_rw_DRW, ADDR.Addr7_0);

                             break;

             case 4: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB4);

                            err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE0);

                             break;

             case 5: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB5);

                            err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE1);

                             break;

             case 6: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB6);

                          err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE2);

                             break;

             case 7: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB7);

                            err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE3);

                                  break;

             case 8: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB8);

                            err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE4);

                                  break;

             case 9: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOB9);

                          err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE5);

                                break;

             case 10: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOBA);

                          err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE6);

                                break;

             case 11: err=SWDWrAPReg(ahbap_rw_TAR, FTFA_FCCOBB);

                          err=SWDWrAPReg(ahbap_rw_DRW, WtoWr.BYTE7);

                                break;

             default: break;

       }

  }

  return err;

}

U32 ISP_SEQ(U8 cmd_code,          //command code

                 FlashCmdSeq_ADDR ADDR,          //address

                 FlashCmdSeq_DATA WtoWr,          //word to write

                 U8 index)          //command count

{

  volatile unsigned int cmd_data;

  U8 err = E_OK;

  err = SWDRdMemWd(FTFA_FSTAT, &cmd_data)

  if((cmd_data&0x30)!=0)

            err = SWDWrMemWd(FTFA_FSTAT, 0x30);          // write 1 to clear error flags(ACCERR & FPVIOL)

  err = FlashCmdSeq(cmd_code, ADDR, WtoWr, index);

  err = SWDWrMemWd(FTFA_FSTAT, 0x80);          // write 1 to clear flag (executes command)

  LP_wait_ms(15);

  err = SWDRdMemWd(FTFA_FSTAT, &cmd_data);

  if(!(cmd_data&0x80))          //if CCIF(bit7) have not set to 1 return error

  return err;

}

[Shawn_Lee]

您好 JingJing Zhong,

图在ARM手册的Figure8.1，档名IHI0031A_ARM_debug_interface_v5.pdf

我已经测试过KL16P80M48SF4RM.pdf 中27.4.8.2的command，包刮Program Longword、Erase Flash Sector、Erase All Blocks，但都无法写入FCCOB。所以我才猜测不能透过AHB-AP而是别种方法。

Regards!

Shawn