Is it possible to write into code memory without using IAP ?

[mslab]

Posted on March 21, 2006 at 07:06

Is it possible to write into code memory without using IAP ?

[mslab]

Posted on March 13, 2006 at 14:24

We have produced at this time 120 machines, and this problem has occured only with 10 machines.

Regards B.PICARD

[laurent239955_stm1]

Posted on March 14, 2006 at 05:26

Hi,

Is the same behaviour on the 10 parts ? I mean : - when you check the failed content, is there several addresses ? - is(are) the same address(es) from one part to another ? - is the content changed in the same way ? By the way, have you a contact in ST sales office or do you get the parts through a distributor. Best regards Laurent

[mslab]

Posted on March 14, 2006 at 05:46

Hi,

- when you check the failed content, is there several addresses ? YES (E001, E002, E003, E004, ... and sometimes up to the beginning of the code so the ST7 cannot run! is(are) the same address(es) from one part to another ? NO, because some parts - is the content changed in the same way ? Often we get 223 (0xDF) By the way, have you a contact in ST sales office or do you get the parts through a distributor. In france, through EURODIS (RIP!) and now AVNET Best regards B.PICARD

[laurent239955_stm1]

Posted on March 21, 2006 at 05:12

Hi,

Are they more than 32 bytes which are corrupted ? Can you try to set the sector 0 size to 4k. This will protect against IAP ? If you still get the problem, this will come from another source than the IAP. Best regards Laurent

[mslab]

Posted on March 21, 2006 at 07:06

Hi,

Are they more than 32 bytes which are corrupted ? Sometimes YES and sometimes NO Our sector 0 size is 0.5 K Thanks B.PICARD