KM34Z256 flash erase sector problem

[wulinweng]

Dear support:

as I used the function below to erase sector 2K for KM34Z256VLQ7 in TWR-KM34Z75M development board, from the memory watch I can't find the flash is erased sucessfully. Can you provide some information for me?

thank you.

#if defined (__ICCARM__)
  __ramfunc void _FTFA_EraseSector (const void *pDst)
#elif defined(__GNUC__) || defined(__CC_ARM)
            void _FTFA_EraseSector (const void *pDst)
#endif
{
  if ((FTFA_FSTAT & FTFA_FSTAT_FPVIOL_MASK) ||
      (FTFA_FSTAT & FTFA_FSTAT_ACCERR_MASK)) { FTFA_FSTAT |= 0x30; }
  FTFA_FCCOB0 = 0x09;
  FTFA_FCCOB1 = (uint8)((uint32)pDst>> 16);
  FTFA_FCCOB2 = (uint8)((uint32)pDst>>  8);
  FTFA_FCCOB3 = (uint8)((uint32)pDst>>  0);
  FTFA_FSTAT |= FTFA_FSTAT_CCIF_MASK;
  while (!(FTFA_FSTAT & FTFA_FSTAT_CCIF_MASK));
}

[MarMi]

Dear Wulin,

based on the information you provided it is hard to provide any reasonable suggestion on what else to try; the problem could be in the sector definition in linker command file, debugger interaction during erase operation, etc. Therefore, please try our example called ftfa_test from the latest bare-metal drivers for MKM34Z256 device family... You can download drivers from our web KMSWDRVAPIRM_SW. The documentation for example is attached to this reply for your convenience - you can find it also in readme.html that installs together with drivers. The example source code will install in KM256SWDRV_R4_1_5/src/Projects/ftfa_test subfolder.

Please try to run this example on your board and if this one fails then we will start looking for potential problems.

Kind regards,

Martin M.

[wulinweng]

Dear Martin,

the demo which you provided me is ok, it means that the hardware board is ok, but in my project is not ok, I have copy that code to the main() function at the first line, it can't erase either. So I don't know when do the flash operation is there any setting before the main() function?

thank you.

br

[kerryzhou]

Hi Wulin,

   Please disable the global interrupt before you do the flash operation.

   If it is still not ok, please upload the project, I would like to help you to check it.

Have a great day,
Jingjing

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[wulinweng]

Mike-WuLin Weng

ABB Xiamen Low Voltage Equipment Company Limited

No.12-20, 3rd Chuang Xin Road Xiamen SEZ, Fujian 361006 P.R.China

Phone: +86 592 5767829

Mobile: +86 181 5089 0831

email: mike-wulin.weng@cn.abb.com<mailto:mike-wulin.weng@cn.abb.com>

[MarMi · Accepted solution]

Hello Wulin,

MKM34Z256 bare-metal drivers and examples disables /NMI interrupt by default in order to eliminate this non-maskable interrupt to occur. However, this is not happening in your project because your project is configured not to program flash configuration field (0x40c-0x40f) where /NMI interrupt should be disabled by writing FTFL_FOPT[2]=0.

In order to correct your existing project, you need to use attached RCM.board file (with extra parameter: --enable_config_write) and override your existing one - see below. 

   

When you're creating new project next time please use make_project.exe utility that is delivered with bare metal drivers. This utility will create new project with all necessary links to drivers including reference to a specific board file. You might also consider using new drivers release for your new developments (release 4.1.5).

Kind regards,

Martin M.

[wulinweng]

Hello Martin,

when created the project, the project will used the default project.board, but if I change the IAR .eww file, and open the project, add the IAR .ewp file to the workspace, and it can't use the project.board in the created project foder, what I question is If I want to change the eww file name after created the project used make_project.exe, how can I make sure the project.board will be used in the new name project.

[MarMi]

Hello Wulin,

Please refer to this thread: Renaming in IAR Embedded Work Bench - Stack Overflow.

If you're opening new project often or see this feature useful, we can update make_project.exe to generate project files named as (project.*) or optionally ("project_name".*) where "project_name" is the information entered by the user during new project creation.

Kind regards,

Martin M.

[wulinweng]

Hello Martin,

Thank you for your reply and this is the reason.

I have followed your step and fix the issue, after that I have created new project with release driver 4.1.5 and transfer

my source files to this new project, it seems everything is fine.

Thank you & BR,

[wulinweng]

Dear all,

thank you all for so quick reply, unfortunately the problem is still exist.

I have checked the ICF file and disable the interrupt before erase the sector operation, it still not ok.

I will send the project through the email latter.

BR,

[MarMi]

Dear Wulin,

I think that issue might be in a linker file because the ftfa_test project uses specific linker file located in the project build subfolder named MKMxxZ256_flash_FTFA.icf .

This file, among others, defines symbol (define symbol __CONFIG_FLASH_BLOCK__ = 0x0003f800;) and place .config section at this address (place at address mem:__CONFIG_FLASH_BLOCK__   { readonly  section .config };) 

If this linker procedure is included in your code, I am afraid, I will have to look more deeply into your project to understand better the issue.

Kind regards,

Martin M.