What causes the line protocol to go down?
If the keepalive values in the mineseq, yourseen, and myseen fields are not incrementing in each subsequent line of output, there is a problem at one end of the connection. When the difference in the values in the myseq and mineseen fields exceeds three, the line goes down and the interface is reset.
What should I do if my CSU line is down?
A telephone company problem has occurred—line is down or is not connected to CSU 3 /DSU 4 . Cabling is faulty or incorrect. Hardware failure has occurred (CSU/DSU). 1. Check the LEDs on the CSU/DSU to see whether the CD is active, or insert a breakout box on the line to check for the CD signal. 2.
When does line protocol go down in HDLC?
When the difference in the values in the myseq and mineseen fields exceeds three, the line goes down and the interface is reset. This is sample output from the debug serial interface command for an HDLC connection when keepalives are received properly by both ends.
Why is my CSU not in manual loopback mode?
If the CSU or DSU is not configured in manual loopback mode, contact the leased-line or other carrier service for line troubleshooting assistance. A high error rate has occurred due to a telephone company service problem. A CSU or DSU hardware problem has occurred. Router hardware (interface) is bad. 1.
Is there a way to erase a line in C?
For erasing a line, this is ^ [ [2K. In C this gives: This does not reset the cursor to the beginning of the line (in my terminal, at least), so is still required. Note that the use of %c is not necessary. Alternative: printf (“\\33 [2K”); – Stephan202 Oct 2 ’09 at 9:46
How to detect short and long button presses?
To detect a short and long button press using millis can give your project more functionality without adding more buttons. In this line-by-line example, I show how to react to a user pressing a button for a short period (100ms) or a long period (over 500ms). My example changes the blink rate of an LED on short presses.
How to perform a hard reset on Cadillac CUE?
There are times that Cadillac’s CUE infotainment system needs a hard restart or a reset. Here’s how to perform a hard reset on Cadillacs with the CUE system.
How to tell if a button is short or long?
const unsigned long shortPress = 100; const unsigned long longPress = 500; For your project or application, you may need to change these values. They determine how much time, in milliseconds, must pass to register as a short or long press. For example, “shortPress” might be large for the type of button you’re using.
