The error means that the driver didn't get a response from the
controller in 16.7 seconds (assuming the default VxWorks system clock
frequency):
https://urldefense.us/v3/__https://github.com/epics-motor/motorOms/blob/dca9b664904de6378854844882605179663a30e7/omsApp/src/drvMAXv.cc*L704__;Iw!!G_uCfscf7eWS!ecTkN7c-rl1I5poPYqAh8icrv3cKL5VrVnAvEQktwg73bcckxRUlel5VIbYuErBRQEEIYPXoJRjiIZjgEFd9S1s$
The problem is likely due to the a mismatch between the MAXv jumper
configuration and the MAXv software configuration in the IOC.
A former coworker developed some javascript code to help determine the
correct jumper settings. I tried to share it with tech-talk back in
2022 (https://urldefense.us/v3/__https://epics.anl.gov/tech-talk/2022/msg01861.php__;!!G_uCfscf7eWS!ecTkN7c-rl1I5poPYqAh8icrv3cKL5VrVnAvEQktwg73bcckxRUlel5VIbYuErBRQEEIYPXoJRjiIZjgoh3BSy0$ ) but html
attachments aren't handled correctly on the tech-talk web page. I've
attached it again, this time as a text file.
Kevin
On 5/12/24 22:07, whitetiger1123 via Tech-talk wrote:
It booted up very well, but I can see some error when communicate with
maxv oms controller.
Error message is “MAXv card #0 communication timeout”
<!DOCTYPE html>
<html>
<head>
<title>BCDA MAXv jumper assignments</title>
<meta charset="UTF-8">
<script type="text/javascript">
function is_hexadecimal(str)
{
regexp = /^[0-9a-fA-F]+$/;
if (regexp.test(str))
return true;
else
return false;
}
function check_addr(addrstr, mode)
{
switch(mode)
{
case 0:
if( (addrstr.length != 8) || ( addrstr.substring(2) != "000000") ||
!is_hexadecimal(addrstr) )
return false;
break;
case 1:
if( (addrstr.length != 6) || ( addrstr.substring(2) != "0000") ||
!is_hexadecimal(addrstr) )
return false;
break;
case 2:
if( (addrstr.length != 4) || ( addrstr.substring(1) != "000") ||
!is_hexadecimal(addrstr) )
return false;
break;
}
return true;
}
function draw_maxv()
{
function draw_jumper_block( jspec)
{
let lrx = rx + jumper_block[jspec].xoffset*bs;
ctx.beginPath();
ctx.fillStyle = "#000000";
ctx.fillText(jspec, lrx, ry+2*bs+fs);
ctx.stroke();
ctx.beginPath();
ctx.fillStyle = "#FFFFFF";
ctx.fillRect( lrx, ry, jumper_block[jspec].jumpers.length*bs + 1, 2*bs);
ctx.stroke();
ctx.lineWidth = lw;
ctx.strokeStyle = "#000000";
ctx.strokeRect(lrx, ry, jumper_block[jspec].jumpers.length*bs + 1, 2*bs);
for( i in jumper_block[jspec].jumpers)
{
ctx.lineWidth = lw;
ctx.strokeRect(lrx + i*bs+2, ry+2, bs-3, 2*bs-4);
ctx.fillStyle = "#606060";
ctx.beginPath();
ctx.fillRect( lrx + i*bs+bs/2-2.5, ry+bs-12.5, 6, 6);
ctx.fillRect( lrx + i*bs+bs/2-2.5, ry+bs+6.5, 6, 6);
ctx.stroke();
if( jumper_block[jspec].jumpers[i] == 1)
{
ctx.lineWidth = 7*lw;
ctx.strokeRect(lrx + i*bs+8, ry+8, bs-15, 2*bs-16);
}
}
}
var jumper_block =
{ "J12": { "xoffset":0, "jumpers": [0,0,0,0,0,0]},
"J13": { "xoffset":7, "jumpers": [0,0,0,0,0,0,0,0,0,1,0,0,0,0]} };
var rx = 25.5;
var ry = 55.5;
var bs = 30; // blocksize
var fs = 20; // fonstsize
var lw = 1;
var xx;
var c = document.getElementById("maxv_canvas");
var ctx = c.getContext("2d");
ctx.beginPath();
ctx.fillStyle = "#FFDD99";
ctx.fillRect( 0, 0, c.width, c.height);
ctx.stroke();
ctx.lineWidth = lw;
ctx.font = fs + "px Arial";
var mode = parseInt(document.getElementById("mode_input").value)
jumper_block.J12.jumpers[mode] = 1;
switch(mode)
{
case 0:
jumper_block.J13.jumpers[13] = 1;
case 2:
jumper_block.J13.jumpers[12] = 1;
break;
}
var irq = parseInt(document.getElementById("irq_input").value)
var nirq = ~irq;
for( let i = 0; i < 3; i++)
if( nirq & (1 << i))
jumper_block.J12.jumpers[5-i] = 1;
var addrstr = document.getElementById("addr_input").value;
if( !check_addr( addrstr, mode) )
{
let errstr;
if( mode ==0)
errstr = "A32 address needs to be of the form \"XX000000\",";
else if( mode == 1)
errstr = "A24 address needs to be of the form \"XX0000\",";
else
errstr = "A16 address needs to be of the form \"X000\",";
errstr += "where X is a hex digit."
ctx.beginPath();
ctx.fillStyle = "#000000";
ctx.fillText( errstr, 30, 70);
ctx.stroke();
return true;
}
var addr = parseInt( addrstr, 16);
var naddr;
switch( mode)
{
case 0:
naddr = ~(addr/0x1000000);
for( let i = 0; i < 8; i++)
if( naddr & (1 << i))
jumper_block.J13.jumpers[i] = 1;
break;
case 1:
naddr = ~(addr/0x10000);
for( let i = 0; i < 8; i++)
if( naddr & (1 << i))
jumper_block.J13.jumpers[i] = 1;
break;
case 2:
naddr = ~(addr/0x1000);
for( let i = 0; i < 4; i++)
if( naddr & (1 << i))
jumper_block.J13.jumpers[4+i] = 1;
break;
}
ctx.beginPath();
ctx.fillStyle = "#000000";
ctx.fillText("MAXv jumper settings: IRQ=" + irq + " Mode=A" +
(32-8*mode) + " Address=" + addr.toString(16).toUpperCase(),
60, 30);
ctx.stroke();
for( j in jumper_block)
draw_jumper_block(j);
return true;
}
window.onload = function(){ draw_maxv(); }
</script>
<style>
body { margin: 15px 35px;
max-width: 800px; }
canvas { border:1px solid #000000; }
input[type=number]{ width: 50px; }
</style>
</head>
<body>
<h1>BCDA MAXv jumper assignments</h1>
<p>
IRQ is typically 5, and Mode is typically A16 and sometimes A24.
</p>
<form id="maxv_form" onsubmit="return false;">
<p>
<label for="irq_input">IRQ: </label>
<select id="irq_input" onChange="draw_maxv()">
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5" selected>5</option>
<option value="6">6</option>
<option value="7">7</option>
</select> 
<label for="mode_input">Mode:</label>
<select id="mode_input" onChange="draw_maxv()">
<option value="2" selected>A16</option>
<option value="1">A24</option>
<option value="0">A32</option>
</select> 
<label for="addr_input">Address: 0x</label>
<input id="addr_input" type="text" value="A000" size="10"
onChange="draw_maxv()">
</p>
</form>
<canvas id="maxv_canvas" width="685" height="155">
</canvas>
<p>
The address modifiers are on J13, but those are set to our
normal options: supervisory data access, and the size access
corresponding to the mode: Short for A16 (0x2D), Normal for A24
(0x3D), and Extended for A32 (0x0D).
</p>
</body>
</html>
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