External Memory Access | LPC2000 | EmbeddedRelated.com

Hi, I'm trying to access the external Memory of the LPC-E2294 (from Olimex). I configured the EMC as followed: // Initialization of EMC // FLASH 16bit; IDCY = F; WST1 = 4; RBLE = 1; WST2 = 6 BCFG0=0x1000348F; // SRAM 32bit; IDCY = F; WST1 = 0; RBLE = 1; WST2 = 0 BCFG1=0x2000040F; // address lines... PINSEL2=0x0F000924; When I'm trying to write in the SRAM the program stops () Can someone tell me what to do? Thanks, Matthias

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--- In lpc2000@lpc2..., "wiese_matthias" <wiese_matthias@y...> wrote: > Hi, > I'm trying to access the external Memory of the LPC-E2294 (from > Olimex). I configured the EMC as followed: > > // Initialization of EMC > // FLASH 16bit; IDCY = F; WST1 = 4; RBLE = 1; WST2 = 6 > BCFG0=0x1000348F; > // SRAM 32bit; IDCY = F; WST1 = 0; RBLE = 1; WST2 = 0 > BCFG1=0x2000040F; > // address lines... > PINSEL2=0x0F000924; > > When I'm trying to write in the SRAM the program stops () > Can someone tell me what to do? > > Thanks, > Matthias Hi Matthias, we have test code on our web site which access the external memory. Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430 (http://www.olimex.com/dev)

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Tsvetan, That is the code he is using to test things. Even my code (which is very clean, and works on most boards tested so far) doesn't seem to work, so he MAY be something with the E2294. (by the way, your test software assumes the boards come with F320B chips, using ID 0x88c5, and this is not the case: they come with F320T chips, with ID 0x88c4.) this also changes the way one can use them (top/bottom boot block etc..) --fred tsvetanusunov <tusunov@tusu...> wrote: --- In lpc2000@lpc2..., "wiese_matthias" <wiese_matthias@y...> wrote: > Hi, > I'm trying to access the external Memory of the LPC-E2294 (from > Olimex). I configured the EMC as followed: > > // Initialization of EMC > // FLASH 16bit; IDCY = F; WST1 = 4; RBLE = 1; WST2 = 6 > BCFG0=0x1000348F; > // SRAM 32bit; IDCY = F; WST1 = 0; RBLE = 1; WST2 = 0 > BCFG1=0x2000040F; > // address lines... > PINSEL2=0x0F000924; > > When I'm trying to write in the SRAM the program stops () > Can someone tell me what to do? > > Thanks, > Matthias Hi Matthias, we have test code on our web site which access the external memory. Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430 (http://www.olimex.com/dev) --------------------------------- YAHOO! GROUPS LINKS --------------------------------- [Non-text portions of this message have been removed]

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Discussion Groups | LPC2000 | External Memory Access

External Memory Access - wiese_matthias - Aug 9 10:28:00 2005

Re: External Memory Access - tsvetanusunov - Aug 12 9:23:00 2005

Re: Re: External Memory Access - DECwiz \Fred van Kempen\ - Aug 12 11:00:00 2005