Hi, Currently I'm using LPC2478 that has 512KB Internal flash with my ULINK2. It works fine - I can downlaod flash, Debug, Run....
512KB become too small - I would like to move to bigger flash size (without changing NXP).
I Can use the LPC2470 (without internal flash) and connect it to the SST39x160x (that is supported by the ULINK2). When I do that- I will loose something? Can I still download , Debug, and run the target with the JTAG and ULINK2?
Regards, Doron
Can I still download , Debug, and run the target with the JTAG and ULINK2?
You need to adjust the initialization file (debug page of project settings) of uv4 so that it can access the NOR flash (LPC2478):
// Setup pins for External NOR Flash _WDWORD(0xFFE08000, 0x00000001); // EMC_CTRL: Disable address mirror _WDWORD(0xE01FC0C4, _RDWORD(0xE01FC0C4) | 0x00000800); // PCONP: Turn on EMC PCLK _WDWORD(0xE002C018, 0x55555555); // PINSEL6 _WDWORD(0xE002C020, 0x55555555); // PINSEL8 _WDWORD(0xE002C024, 0x10051555); // PINSEL9 // Setup controller for External NOR Flash _WDWORD(0xFFE08200, 0x00000081); // EMCStaticConfig0 _WDWORD(0xFFE08204, 0x00000000); // EMCStaticWaitWen0 _WDWORD(0xFFE08208, 0x00000003); // EMCStaticWaitOen0 _WDWORD(0xFFE0820C, 0x00000005); // EMCStaticWaitRd0 _WDWORD(0xFFE08210, 0x00000000); // EMCStaticWaitPage0 _WDWORD(0xFFE08214, 0x00000000); // EMCStaticWaitWr0 _WDWORD(0xFFE08218, 0x00000000); // EMCStaticWaitTurn0 LOAD .\bin\FMMapp.axf INCREMENTAL // Download program //_WDWORD(0xE01FC040, 0x00000003); // Remap External Memory to 0 PC = 0 // Set PC to beginning g, main
You might also consider adjusting your bootloader to accomplish the same via IAP.
Hi Tamir, Thanks for your reply, Is the file that you suggested should be used in the ULINK ( initialization file) and thats it... I also belive that the FMMapp.axf shold be replace with my project name...
Do you have any suggestion for the external NOR flash?
Thanks, Doron
Yes - it is that simple. Do note that you also need to actually place code in the NOR flash using a scatter loading file.
Also note that the file I posted assumes your NOR flash is connected to a specific static bank of your EMC, but that should not be hard to change is necessary!
Hi Tamir, Now I'm confused: The bottom line meens that I can connect NOR flash to the LPC2470 - and only by setting the correct parameters (Scatter , ini files etc...) I can fully run and debug the progarm using my ULINK2 (Jtag interface). So the ULINK2 has full access to the NOR flash to program it and to debug the program (breakpoints) ... I'm right?
Yes you are right. I've done it myself.
Tamir, Many thanks...