Maybe better use a capacitor value is depending on pullup resistor and reset time, the bigger the capacitor the longer the signal stayes
On Aug 14, 8:33 pm, Sebastien Lelong <[email protected]> wrote: > Hi Albert, > > Without any cap, can you still program the PIC via ICSP? > Maybe better use a capacitor for safety because on the results of your test your output RTS is push pull 5V. During programming the voltage level on MCLR will be 9 to 13 Volt, depending on which micro you use and I am not shore if your converter is happy with 9V to 13V on its RTS output, or even worse, if RTS give a reset during programming. a capacitor eliminates this problem. value of the capacitor is depending on pull up resistor and reset time, the bigger the capacitor the longer the signal stays below threshold level. You can calculate the value if you know the reset threshold level and the minimum reset time, but because of your test you can simply say if 100nF is working 220nF or 330nF (non polarity) will absolute be good. 220nF is the one that I will be using in Jaluino Greetz Richard --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jallib?hl=en -~----------~----~----~----~------~----~------~--~---
