--- In lpc2000@yahoogroups.com, "brendanmurphy37" <brendanmurphy37@...> wrote: > > --- In lpc2000@yahoogroups.com, "jayasooriah" <jayasooriah@> > > Unlike Philips, OKI designers appear to appreciate KISS rule book. If > > anyone things they are in the same league, then I suspec they are > > either kidding themselves or just plain naive. > > > > I've also used both parts and have come to a different conclusion. The > difference between us is that I don't feel the need to innsult others > with a different opinion. I've asked you before to refrain from this > kind of language: it only detracts from the points you make. It depends on how you take my comment Brendan. I say there is no comparison and yet you keep butting in that they are alike. Either you cannot see what I see, or you do not know enough to see the difference I see. Just so that others can see the kind of differences we are talking about, here is an excerpt of OKI user manual for 674001/675001 series: <quote> 6.2 Reset Types 6.2.1 External Reset Input Driving the RESET_N pin at Low level for a pulse width at least 20 clock cycles triggers a reset. When first applying the power or waking the LSI from STANDBY mode, however, increase the pulse width to at least 10 ms to allow the crystal oscillator sufficient time to stabilize. This type of reset leaves 0x0000 in the WDSTAT register. 6.2.2 Watchdog Timer Overflow Setting the ITM and OFINTMODE bits in the watchdog time base counter control (WDTBCON) register to "0" and "1," respectively, causes watchdog timer overflow to trigger a system reset. This type of reset leaves 0x0001 in the WDSTAT register. This type also leaves the following LSI settings unchanged: I/O port direction (input/output), I/O port function (primary/secondary), I/O port output levels, and the oscillation stabilization interval specified in the clock wait (CKWT) register. </quote> The designers have thought through what one uses the watchdog for and chose not to lump watchdog reset with the system reset as it appears to be for LPC. Clearly there is no comparison. If you wish to question one's assessment, or make your own counter assertion you must be prepared not to be offended when one explains how far off the mark you assertions are. Jaya
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Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-29 by jayasooriah
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