Editing Test points/MechaCon UART
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==Notes== | ==Notes== | ||
*'''RX''' and '''TX''' are sometimes swapped in these pictures. This is due to the contributors not having unified their naming conventions, with some marking RX and TX as seen from the MechaCon's side and others marking RX and TX as seen from the PC's (or it's interface's) side. If you can't establish a connection one way, you should try swapping RX and TX and try again. There are plans for unifying the naming in the future. | *'''RX''' and '''TX''' are sometimes swapped in these pictures. This is due to the contributors not having unified their naming conventions, with some marking RX and TX as seen from the MechaCon's side and others marking RX and TX as seen from the PC's (or it's interface's) side. If you can't establish a connection one way, you should try swapping RX and TX and try again. There are plans for unifying the naming in the future. | ||
*The '''3.3V''' marked on most pictures are '''actually 3.5V''', since that's what MechaCon runs off. | *The '''3.3V''' marked on most pictures are '''actually 3.5V''', since that's what MechaCon runs off. This voltage needs to be connected if you are using e.g. a RS232-to-TTL level shifter (like e.g. a MAX3232-based level shifter) as a reference voltage. However, it should not be connected to anything that has it's own 3.3V regulator (like e.g. some USB-to-TTL converters), since the regulator on the PS2's board and your converter will end up in a feedback loop, potentially causing damage. There are plans for unifying the naming in the future. | ||
*'''RMC''' is actually named '''TEST_MODE0'''. This mistake comes from the fact that the generic microcontroller that the SPC970-MechaCon is based on has an alternate function on the same pin called RMC ('''R'''e'''M'''ote'''C'''ontroller), which is an internal remote control signal decoder. This alternate function is unused on PS2 and does not exist on the Dragon-MechaCon. There are plans for unifying the naming in the future. | *'''RMC''' is actually named '''TEST_MODE0'''. This mistake comes from the fact that the generic microcontroller that the SPC970-MechaCon is based on has an alternate function on the same pin called RMC ('''R'''e'''M'''ote'''C'''ontroller), which is an internal remote control signal decoder. This alternate function is unused on PS2 and does not exist on the Dragon-MechaCon. There are plans for unifying the naming in the future. | ||