| ??? 10/01/10 13:39 Read: times |
#178822 - The display is really simple Responding to: ???'s previous message |
What he wants is to take his entire dynamic range and split it into 10 subranges, with one LED dedicated to each of those subranges. Then, when he drives his D2A, there will be a visible indicator corresponding to each subrange.
I can't imagine anything simpler for this purpose. I'd guess that the procedure would involve interpreting the V2F input, table-lookup of the corresponding output voltage, table lookup of the corresponding indicator code (0..9), and do it again. It doesn't demand high performance, and it will not require much code space or RAM. I'd hope the whole thing will easily fit in a 20-pin part if one with D2A exists. RE |
| Topic | Author | Date |
| What would you use? | 01/01/70 00:00 | |
| Try this | 01/01/70 00:00 | |
| Another query | 01/01/70 00:00 | |
| If even you Americans don't understand each other... | 01/01/70 00:00 | |
| My point was ... | 01/01/70 00:00 | |
| PSoC | 01/01/70 00:00 | |
| The display is really simple | 01/01/70 00:00 | |
| there is a '51 PSoC | 01/01/70 00:00 | |
| 8051=PSoC3 | 01/01/70 00:00 | |
| There are several ways... | 01/01/70 00:00 | |
| It's going to have to be a delicate introduction to MCU's | 01/01/70 00:00 | |
| parametric search | 01/01/70 00:00 | |
| Couldn't find that ... this time | 01/01/70 00:00 | |
| built-in DAC | 01/01/70 00:00 | |
| also in some 3xx's | 01/01/70 00:00 | |
| C8051F330-GP | 01/01/70 00:00 | |
| I've decided that's a good choice | 01/01/70 00:00 | |
| Maybe drive LEDs without LED driver? | 01/01/70 00:00 | |
I haven't yet considered that ... | 01/01/70 00:00 | |
| Analog DevicesADUC814 | 01/01/70 00:00 | |
| That's one of the sheets I sent him | 01/01/70 00:00 | |
| 2 chips maybe better | 01/01/70 00:00 | |
| what resolution? | 01/01/70 00:00 | |
| They're under consideration | 01/01/70 00:00 | |
| '51 with d to a | 01/01/70 00:00 |