Difference between revisions of "Talk:Serial ICSP programing"
From Organic Design wiki
m |
(use buffer from a robust logic family) |
||
| Line 1: | Line 1: | ||
Question: Do you need capacitors/resistors in between the lines of the serial port and the lines of the micro? Perhaps it's safer to have some kind of buffer? --[[User:Rob|Rob]] 12:37, 26 Mar 2007 (NZST) | Question: Do you need capacitors/resistors in between the lines of the serial port and the lines of the micro? Perhaps it's safer to have some kind of buffer? --[[User:Rob|Rob]] 12:37, 26 Mar 2007 (NZST) | ||
| + | :Capacitance is what you want to remove from your signals, if you want to protect it just put each input through a buffer (ie a logic gate which does nothing like two inverters in series, or an and/or gate with its inputs tied together - or you can just get a buffer chip). Use | ||
| + | a [[w:Logic family|logic family]] which has quite a wide voltage range like 74HCxx. | ||
Revision as of 01:19, 26 March 2007
Question: Do you need capacitors/resistors in between the lines of the serial port and the lines of the micro? Perhaps it's safer to have some kind of buffer? --Rob 12:37, 26 Mar 2007 (NZST)
- Capacitance is what you want to remove from your signals, if you want to protect it just put each input through a buffer (ie a logic gate which does nothing like two inverters in series, or an and/or gate with its inputs tied together - or you can just get a buffer chip). Use
a logic family which has quite a wide voltage range like 74HCxx.
