CodeMercs Forum

Since the original state of the I/O warrior is high we have used this High to disable the rest of the circuit such that when we want to use the I/O we first clear all outputs which in term enables all the drivers. This has worked very well until we had to reboot the computer. During the reboot of ...

After getting an I/O warrior 40 kit to compare with the non responding chip we finally found the problem Like for most electronic problems the cause was simple but the diagnostic took a long time. The problem ended up being the reversal of the d- and d+ on our layout ( the spec on the dsub connector ...

Thank you Guido for your Reply.
I have verified that there is a 7.5 Kohm resistor between Vcc (pin 40) and USB port D- the rest of the circuitry is Idendical to the schematic for the I/O-Warrior 40 kit with 100 k pull up on pin 3 (p3.7) and 100 K pull up on pin 23 (p0.0) for high power mode.
I do ...

After gettting familiar with the IO-24 kit ( successfully ) I switched to the I/O-40 ( needed more I/O) In the design of our product. I am in the process of debugging our prototype and I can't seem to commicate with the I/O 40.
The schematic used is equivalent to the Warrior I/O-40 kit. the layoput ...