Hello folks,

I'm trying to write a bootloader, using the builtin function of PSoC Creator 2.1 "CyWriteRowData()". Attached you will find an example.

My approach is to write to row-nr. 100, 256bytes of data (in this case 55 dec.) to the flash memory. Array ID should be 0.

Therefore Row 100, Array-ID 0 should be located @ 0x00006400.

CyWriteRowData() even writes data to this section, but it looks like, it is copying just the data, which is already is flash starting from 0x00000000?! (is used the MiniProg3 for debugging)

The Dev-Board I'm using is CY8CKIT-001 with the PSOC5 Header (121R-54600).

Is my approach totally wrong or do you got any suggestions?

I even looked at the code, which creates the component "Bootloader", but it didn't helped me out.

I'm grateful for any hints!

Bye, bye and thanks in advance...
 

Jings

Will you please post at least the complete call to CyWriteData() and tell us the retuned value.

Bob

Thanks for your response.

I thought I had attached the example project, but the user form don't upload it. Another try ;)

Return-value is 0, which is ok....

Bye,

Jings

Another try, probably it don't accepted the file because of the added dot's in the filename,

created by PSOC Creator....

Don't know, why I can't upload the zip file, but nevertheless I'm posting just the plain test code:

void main()
{
    uint8 buffer[260];
    memset(buffer, 55, 256);
   
    uint8 array_id = 0;
    uint8 row = 100;
    cystatus status;
   
    CySetTemp();

    /* Write to flash => 0x6400 (Array=0, Row=100) */
    status = CyWriteRowData(array_id, row, buffer); 

    for(;;)
    {
        /* Place your application code here. */
    }
}

That's basically all I did, no component or other stuff added to the project.

Dev-System as described above!

Thanks to all of you, who are kind enough to all this ;)

Jings

Have you disabled ECC? If yes, you need to call CySetFlashEEBuffer API before calling CyWriteRowData.

 uint8 *HelpBuff; cystatus status; memset(buffer, 0x55, 256); HelpBuff = malloc(300); status = CySetFlashEEBuffer(HelpBuff); CySetTemp(); /* Write to flash => 0x6400 (Array=0, Row=100) */ status = CyWriteRowData(array_id, row, buffer); free(HelpBuff);

Fricken editor

uint8

*HelpBuff;

/* Write to flash => 0x6400 (Array=0, Row=100) */

Bob

status = CyWriteRowData(array_id, row, buffer);

free(HelpBuff);

cystatus status;

memset(buffer, 0x55, 256);

HelpBuff = malloc(300);

status = CySetFlashEEBuffer(HelpBuff);

CySetTemp();

Nice, now all the lines are mixed with a single ctrl-V !

Take it as a puzzle and order them.

Bob

Hey Bob,

thanks for your puzzle, I really loved it ;)

The CySetFlashEEBuffer()-function was the key. I looked it afterwards up in the System Reference Guide on page 56,

where it is explained, why it is used. Now I feel a little bit embarrassed because if I had read it carefully, I would have done it by my own ;(

But anyways, thanks for your support!

I almost love you ;)

Bye and greeting from Austria

Jings

@Jinx (smile)

If you hadn't had that issue I wouldn't have looked up the solution in the manual, so I've learnt something from your question too.

BTW: My daughter is wearing a t-shirt with "There are no Koalas in Austria". She's in Brisbaine right now.

Greetings from Germany

Bob