While browsing recently on a well-known website (maybe P.H. Anderson or another respected Picaxe guru) I came across a link which took me to an interesting website where I read a discussion of the programming circuit. I've been looking but cannot now find this site.
Anyway, this well-experienced person had found that a 100K resistor from the Program In pin to ground is adequate to hold it low during operation, but also can be ignored while programming through the regular 10K/22K resistor network. In short, the 100K can be left in circuit all the time as the pulldown resistor, and doesn't prevent the chip from being programmed using the regular programming circuit.
Is anyone aware of which website I might have seen this information on? I'd like to go back and re-read the information.
Anyway, this well-experienced person had found that a 100K resistor from the Program In pin to ground is adequate to hold it low during operation, but also can be ignored while programming through the regular 10K/22K resistor network. In short, the 100K can be left in circuit all the time as the pulldown resistor, and doesn't prevent the chip from being programmed using the regular programming circuit.
Is anyone aware of which website I might have seen this information on? I'd like to go back and re-read the information.