The 0.1uF capacitors when using FTDI programmer

Other Hardware 3rd Party Boards
21

Grumpy_Mike:
But the timing has to be right, hold down the reset, select the program from the IDE, when it says loading, count one two three, and release the reset.

I have tried this ! It's really do work well ! But the timing really have to be correct. Have to release the RESET button once the IDE shows 'uploading..'

Thanks ! Finally I understand why is there a cap there- to bring the RESET High and LOW. :slight_smile:

When I want to upload a new sketch, the we should RESET our microcontroller so that the previous sketch is deleted and pull the RESET HIGH to allow the new program to load into ?

Am I correct ?

Thanks !

22

Thanks ! Finally I understand why is there a cap there- to bring the RESET High and LOW.

Well actually that should read 'to bring the reset Low then High'. :wink:

Lefty

23

Resetting the processor does not delete the old sketch.