On 3/27/2011 8:22:27 PM, kenmcc...@allmail.net wrote: > Hi, I soldered in a crystal and a couple of caps and > it's working fine > now, Amforth seems much more sensitive to clock frequency than the > Arduino C programs. > > I've > had no trouble with the serial interface running C programs on the > BBB. That sent me on some wild goose chases trying to figure out what > was wrong with Amforth. >
As I understand it, the amforth way of dealing with interrupts on the serial port is to have the ISR set a flag, and the uart is truly serviced when the inner interpreter steps to the next word. There is an elegance to that approach, as it allows secondary ISR to be written in forth, but it has more latency than a traditional ISR (grab byte and stuff into ring buffer immediately). Without hardware drtiven serial handshake, that increased latency may account for the greater sensitivity to timing? ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Amforth-devel mailing list Amforth-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amforth-devel
