Should I pull RESn high?
Electronegativity
Posts: 311
I keep getting a no propeller chip found on any serial port error.
The driver appears to be installed correctly since the propeller plug flashes blue when I use the F7 key to identify hardware.
Probing the board with a multimeter shows 3.3V in all the right places, but the RESn pin seems to be floating.
The manual says that the propeller boots on a low to high transition of RESn, so I suspect this might be the problem.
On the SX you have to pull MCLR up with a 5K -10K resistance.
Is this also true of RESn on the propeller?
This is a home made board so it is also possible that I did something wrong, but it is the second one that did the same thing so I am starting to wonder.
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I wonder if this wire is hot...
The driver appears to be installed correctly since the propeller plug flashes blue when I use the F7 key to identify hardware.
Probing the board with a multimeter shows 3.3V in all the right places, but the RESn pin seems to be floating.
The manual says that the propeller boots on a low to high transition of RESn, so I suspect this might be the problem.
On the SX you have to pull MCLR up with a 5K -10K resistance.
Is this also true of RESn on the propeller?
This is a home made board so it is also possible that I did something wrong, but it is the second one that did the same thing so I am starting to wonder.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
I wonder if this wire is hot...
Comments
There are other things that can also cause this. Can you post a photo of your board?
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Links to other interesting threads:
· Home of the MultiBladeProps: TriBlade,·RamBlade,·SixBlade, website
· Single Board Computer:·3 Propeller ICs·and a·TriBladeProp board (ZiCog Z80 Emulator)
· Prop Tools under Development or Completed (Index)
· Emulators: CPUs Z80 etc; Micros Altair etc;· Terminals·VT100 etc; (Index) ZiCog (Z80) , MoCog (6809)
· Search the Propeller forums·(uses advanced Google search)
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-Phil