| ??? 04/17/09 18:44 Read: times |
#164706 - But I'm not that fast Responding to: ???'s previous message |
Moreover, it would work at logic speeds, rather than poking along at a rate that most MCU's can support. But I can't keep up with that speed. If the processor intends to emit data, then a serial interface is perfect since I can often arrange to get two or three pins available. If the processor don't know about the supervision, then I must of course catch data on whatever number of signals that are interesting - but I can use whatever equipment suitable to convert that data into visible form. Just running raw bus-speed data to a 7-segment display will not help me, since it would be way past my capabilities to read. The think is that microcontrollers are cheap. Extremely cheap. Whatever external equipment I connect to sniff data from a system can use a microcontroller for formatting that data at a speed I can read. Going one step further - a quick dual-ported RAM could do wonders for people who can't afford a logic analyzer. It would have a hard time to trig on a critical sequence, but would allow catching a rather long sequence of data for post-processing. |
| Topic | Author | Date |
| 16bit number to ascii | 01/01/70 00:00 | |
| Base conversion. | 01/01/70 00:00 | |
| Number Base (Radix) and Place Value | 01/01/70 00:00 | |
| ASCII | 01/01/70 00:00 | |
| Right ... I forgot about that part. | 01/01/70 00:00 | |
| What I'd wonder ... | 01/01/70 00:00 | |
| Is it relevant? | 01/01/70 00:00 | |
| That's somewhat of a description | 01/01/70 00:00 | |
| D'oh! You've given it away | 01/01/70 00:00 | |
| Well ... not quite ... | 01/01/70 00:00 | |
| That was step 1. | 01/01/70 00:00 | |
| not hard when talking in human language or C... | 01/01/70 00:00 | |
| Irrelevant | 01/01/70 00:00 | |
| Op code? | 01/01/70 00:00 | |
| Ah, yes ... the Fairchild FND-70 driver ... | 01/01/70 00:00 | |
| nybble-to-7-segment encoder | 01/01/70 00:00 | |
| if... | 01/01/70 00:00 | |
| 30 years ago | 01/01/70 00:00 | |
| That's a BIG if | 01/01/70 00:00 | |
| Serial output | 01/01/70 00:00 | |
| That might work in SOME cases ... | 01/01/70 00:00 | |
| But I'm not that fast | 01/01/70 00:00 | |
What about infrequently recurring events? | 01/01/70 00:00 | |
| FND-70 driver? Luxury! | 01/01/70 00:00 | |
| Decoding DTMF | 01/01/70 00:00 |