i need to test the rs 232 interface phisical level. can you please send the specifications to be tested and test procedure and set up as early as possible. please take this as high priorityTest cases for rs 232?
Take a probe and measure the signals at the UART. A 'Space' or 'logic 0' should be between +3 and +25 volts and a 'Mark' or 'logic 1' should be between -3 to -25 volts. Any voltage between these regions (ie between +3 and -3 volts) is undefined. This UART signal is put through a RS232 level converter and presented at the computer's RS232 port.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment