> We appear to have this problem on the LPC2114. Our prototype board > appears to latch into a state sometimes on powerup. If you take the > reset line down and back up when in this state the processor still > doesn't come up. this is very unlikely as we have many hundreds of LPC-P2114 and LPC- E2114 in production and never ever experienced latchup behaviour like on the REV.B LPC2106. Check our schematics which are posted on our web page, perhaps it's bad decouplung or reset circuit? 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, and MSP430 (http://www.olimex.com/dev)
Message
Re: Power Supply Sequencing - Latchup - FOLLOWUP
2005-01-19 by tsvetanusunov