topic Re: Flash Memory in 8-bit Microcontrollers

Flash Memory

alexismercier — Mon, 29 Apr 2013 07:38:09 GMT

hello everybody,

does anyone know how to save the results of my measure in the flash memory oh the MC9s08JM32?

Re: Flash Memory

ZhangJennie — Tue, 30 Apr 2013 16:15:57 GMT

if you want save the measure result to flash, please refer attached sample code

Re: Flash Memory

alexismercier — Thu, 02 May 2013 07:24:09 GMT

thank you Jun Zhang

Re: Flash Memory

alexismercier — Mon, 06 May 2013 10:19:29 GMT

Hello,

How can I check that the measure result has been saved in the Flash Memory?

Thanks for your answer

Regards.

Alexis

Re: Flash Memory

ZhangJennie — Thu, 09 May 2013 02:43:41 GMT

Before launch debugger, click on HotSync in connection manager. The Hotsync button in the Connection Assistant allows the user to connect to an already running target without erase the flash.

then in debugger, check the memory window to see if the according memory was written.

Hope this helps!

Re: Flash Memory

alexismercier — Fri, 10 May 2013 07:38:01 GMT

Hello Jun Zhang ,

thank oyu for your answer , I'll try this and I'll tell you if I meet sany problem

Re: Flash Memory

ZhangJennie — Fri, 10 May 2013 08:08:20 GMT

you are welcome!

Re: Flash Memory

alexismercier — Tue, 14 May 2013 12:32:29 GMT

hello,

I used the routine tha t you give me in my code but when I want to check if it work i can't see nothing

here's my code:

uint valCO2;

uint valO2;

uint valCO2FinTest;

uint valO2FinTest;

int part_entCO2 ;

int part_decCO2;

int part_entO2;

int part_decO2;

char parteO2;

char partdO2;

char parteCO2;

char partdCO2;

int verif;

valO2=44;

valO2FinTest=valO2;

part_entO2 = valO2FinTest/100;

parteO2=(char) part_entO2;

part_decO2=valO2FinTest-part_entO2*100;

partdO2=(char) part_decO2;

FlashInit();

Flash_Erase (0xFF80);

Flash_Burst(0xFF80, sizeof(partdO2) , partdO2);

if (Flash_Burst(0xFF80, sizeof(partdO2) , partdO2)){

verif=verif+1;

}

Re: Flash Memory

ZhangJennie — Wed, 15 May 2013 02:41:39 GMT

did you perform CopytoRAM routine in your code. CopyToRAM is very necessary when we program flash as EEPROM.

for more information about CopyToTAM, please check TN228

Re: Flash Memory

alexismercier — Wed, 15 May 2013 06:57:00 GMT

hello Jun Zhang,

thank you for your help, I didn't used CopytoRAM i'll try this today.

This is the first time I use Flash memory as EEPROM so i'm little bit lost.

I'll check TN228 as you suggest.

regards

Re: Flash Memory

ZhangJennie — Wed, 15 May 2013 07:01:06 GMT

you are welcome!

Re: Flash Memory

alexismercier — Wed, 15 May 2013 08:20:38 GMT

do I have to use CopytoRam at the beginig of my code or just before FlashInit fcn?

thanks for your answer

Re: Flash Memory

ZhangJennie — Wed, 15 May 2013 08:24:21 GMT

before FlashInit

Re: Flash Memory

alexismercier — Wed, 15 May 2013 08:27:49 GMT

okay thank you for your great help Jun Zhang

Re: Flash Memory

ZhangJennie — Wed, 15 May 2013 08:29:59 GMT

you are welcome!

Re: Flash Memory

alexismercier — Wed, 15 May 2013 15:20:51 GMT

another problem,

when I use the debugger my code stay running on LDHX #0x0178 in INIT_SP_FROM_STARTUP_DESC();

in Start08.c Source.

do you know the reason of this problem ?

thanks

Re: Flash Memory

alexismercier — Thu, 16 May 2013 10:09:54 GMT

hello,

when the debugger compile the code , it stay running without finishing programand I can't see nothing in the memory window, but if I close the debugger and open it again using HOTSYNC I can see my data in the rom at the good adress.

Is this normal ?

thanks for answers .

Alexis.