Such as title, think through the computer simulation of manual buttons (single-chip computer keys, IO between low)
Now think of is USB and RS232 module, and then use any of these two pins (default low level), under the specific command, can output a 50 ms - 1 s high level signal (this can be another delay), two groups of such vows pins for two keys (simulated), a familiar predecessors, which two pins, help me say the specific commands are respectively? Plans to use the Labview control, better subroutine is a bit too much
For example:
PIN1 - PIN5 default low-level "X" command from a computer, PIN1 - PIN5 output a high level
PIN1 - PIN7 default low-level "X" command from a computer, PIN1 - PIN7 output a high level

CodePudding user response:

Oneself do a small plate, it is ok to do a register after the 232 chip, according to the need to modify the register values, for the PIN output requirements

CodePudding user response:

on the first floor of the friend, can detailed say, these do not understand,