ST10F276 soft in IFLASH, data in XFLASH, not clear XFLASH

[p-alain]

Posted on October 31, 2006 at 13:19

ST10F276 soft in IFLASH, data in XFLASH, not clear XFLASH

[najoua]

Posted on October 18, 2005 at 11:46

Hello,

Yes, this example can be used for the ST10F272 but after removing the code lines related to the choice between XFLASH and IFLASH modules because there is no XFLASH on the ST10F272. Please, verify also that ROMEN bit in SYSCON register is set. Regards, Najoua.

[thomaskobler9]

Posted on June 20, 2006 at 12:21

Quote:

A flash library supported by TASKING and Keil toolchains will be provided by ST. Is this library available? I find AN2033 (porting from ST10F269 to ST10F276) a little missleading on this subject, cause only the different mapping (additional blocks) are mentioned: 1.3.2 Software impacts The mapping of the application and the programming and erasing routines are impacted.Therefor I assumed, the IFlash is programmed like with the F269 and the additional controller registers are for the XFlash only.

[najoua]

Posted on June 20, 2006 at 13:23

Hello kobler,

No, the ST10F276 IFLASH is not programmed in the same way as the ST10F269 Flash. The ST10F269 and the ST10F276 Embedded Flashs are different: different technologies (0.35µm for the ST10F269 and 0.18µm for the ST10F276). For more details about the Flash programming, you can refer to the two devices' documentation. Regarding the Flash library, it is available and will be published on the net. If you need it urgent, you can ask your ST local contact. I hope this answers your questions. Best regards, Najoua.

[mirco23]

Posted on August 29, 2006 at 03:35

Is the Flash library already available on the net?

[najoua]

Posted on August 30, 2006 at 05:35

Hello,

No, it is not yet available on the net. You can ask your ST local contact in order to get it. Regards,

[lspr35]

Posted on October 15, 2006 at 09:46

Hello,

I am currently trying to program the IFlash of the ST10F269. Unfortunately I have problems at the very beginning when trying to check wether LOCK in FCR0L is low. Fot this I am using the following code: BSET DP2.8 ; LED red on BSET P2.8 CHKLOCK1: MOV R0,#FCR0L ; check LOCK EXTS #14,#1 MOV R1,[R0] AND R1,#0010h CMP R1,#0 JMPR CC_NE,CHKLOCK1 BCLR P2.8 Unfortunately this loop is infinite -> LOCK seems to be always 1. I can see this because the red LED remains on! Maybe the MOV R1[R0] statement does not read the FCR0L register but the external flash which is erased in this moment. But I don't understand why! Is there anything else required to map the flash registers into the E000x memory region? The contents of my SYSCON is 0111$0111$1000$0000b -> so the ROMEN bit is set to 1! The microcontroller is NOT in BSL mode in this moment. Does anybody have a hint for me? Thanks in advance Squonk

[najoua]

Posted on October 16, 2006 at 09:03

Hello,

I suppose that you are speaking about the ST10F27x and not the ST10F269 because FCR0L register exists on the ST10F27x. In order to be able to access Flash registers, XFLASH memory must be enabled given that Flash registers are located in the XFLASH. XFLASH memory is enabled by setting: - XFLASHEN & XMISCEN bits in XPERCON register. - XPEN bit in SYSCON register ( cleared in your actual configuration) Hope this helps you, Regards, Najoua.

[lspr35]

Posted on October 16, 2006 at 10:07

Hello Najoua,

Yes, I am using a ST10F276. I think I have set these registers already as required. But it still does not work. Are there any other settings required (e.g. XPEREMU)? What about ROMS1 setting - does this matter? I set ROMS1 to 1 in order to map the internal flasch completely in segment 1. What about BSL mode? Currently BSL mode is not active when I try to access the flash registers. Thank You for Your kind help. Regards

[najoua]

Posted on October 26, 2006 at 05:22

Hi,

Did you define correctly the FCR0L address? How did you define it? Regards, Najoua.

[lspr35]

Posted on October 26, 2006 at 17:55

Hello I defined it with:

FCR0L EQU 0000h ; Flash Control Register 0 low and then I test for the LOCK Bit with: CHKLOCK1: MOV R0,#FCR0L ; check LOCK EXTS #0Eh,#1 MOV R1,[R0] AND R1,#0010h CMP R1,#0 JMPR CC_NE,CHKLOCK1 This loop never ends! Probably because I access ext. Flash (which is erased at this moment). I am using ST10F276. Do You have any hints? Best regards Squonk