Want to ask, I'm using the HC6800 - ES V2.0 development board, at school, I use the digital tube of the experimental apparatus of a selected is 0 xfe - 0 x7f, this is not the same, it should be? I was a little white, the great god told that

CodePudding user response:

LED1 ~ 8 pick? Also can use 0 xfe - 0 x7f in 8 IO port

CodePudding user response:

reference 1/f, the wise know already should good karma response:

LED1 ~ 8 pick? Also can use 0 xfe - 0 x7f in 8 IO mouth

Its digital tube no IO mouth, the board should be fixed and chip IO mouth fixed good, can only use 138 decoder control?

CodePudding user response:

Fixed to a microcontroller IO port is ok

CodePudding user response:

Another optional foot? Don't say clear

CodePudding user response:

Not corresponding to the mouth,

CodePudding user response:

Must first determine the electrical properties of eight tube, such as common Yin or common anode, otherwise unable to determine the corresponding correct level