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Do all Go modules have the STM8S IC chip on them


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#1 John Feeney

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Posted 22 April 2012 - 11:50 PM

I see the STM8S IC chip mentioned in the fourms. Is this a requirement on all the Go Modules. Or are there simple modules such as the button modules that don't have them..just a button with two wires coming back to the cable socket? If it not on every board....what type of situations start that you have the STM8S on them. Thanks, John

#2 Stefan

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Posted 23 April 2012 - 06:11 AM

Hi John, All modules have an IC on it, at least for identification. The button module is as simple as a single interrupt port though, so the identification happens with a bit shift IC. At my own site you can find a schematic of the first button module I made, the chip is still the same one: https://stefan.co/bl...he-netduino-go/ On other modules, the STM8 is used to virtualise all pins. This could be done with other microprocessors as well, but we chose STM chips since they're very cheap.
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#3 ItsDan

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Posted 23 April 2012 - 12:19 PM

It has been indicated that the STM8 family will have a soon-to-be-available standard firmware so most module builders won't need to write any C level code. While many other microprocessors will work, you may be on your own to adapt the firmware.
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#4 Chris Walker

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Posted 23 April 2012 - 04:21 PM

Hi John,

You have three options:
  • 589 shift register (LED, Button, Relay modules)
  • STM8S (low speed pin virtualization for most modules)
  • STM32 Cortex (high speed, advanced modules)

We'll provide standardized firmware for the STM8S and STM32 micros... It will also possible to port go!bus virtual i/o to other micro families in the future (such as the NXP Cortex-M0 and AVR DIP chips).

Chris




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