<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt"><div>I have tried the set_vector functions and didn't work either. I though that Driver Manager may be interfering with the interrupt controller driver and I decided to avoid it by "#undef RTEMS_DRVMGR_STARTUP" and see if my handler was being called, but nothing at all. Then I wanted to know if the interrupt was being signaled in the interrupt controller so I went to the IRQ Pending register of the GAISLER_IRQMPIP Core, and as soon as I introduce any character from external terminal towards the APBUART, the Interrupt is shown in the register, but my handler is never called. <br><br>It is quite disappointing, I have to say. Installing an interrupt should be something easy to do, or at least it has been when working with other OS ... I don't know. Any help will be
welcome.<br><br>Alberto.<br></div> <div><span><br></span></div><div><br></div> <div class="" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 10pt;"> <div class="" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">De:</span></b> Needell Gerald <jerry.needell@unh.edu><br> <b><span style="font-weight: bold;">Para:</span></b> Alberto Parnaso <pafbat00@yahoo.es> <br><b><span style="font-weight: bold;">CC:</span></b> Needell Gerald (Jerry) <jerry.needell@unh.edu>; RTEMS Send User List <rtems-users@rtems.org> <br> <b><span style="font-weight: bold;">Enviado:</span></b> Viernes 4 de abril de 2014 18:09<br> <b><span style="font-weight: bold;">Asunto:</span></b> Re: Installing interrupts for a custom driver<br> </font>
</div> <div class=""><br><div id="yiv8346282740"><div>You should be able to just call:<div><span class="" style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;background-color:rgb(255, 255, 255);">old_handler = setvector(</span><span class="" style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;background-color:rgb(255, 255, 255);">(rtems_isr_entry)UARTInterruptHandler,</span><span class="" style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;background-color:rgb(255, 255, 255);"> (rtems_vector_number)3, 1</span><span class="" style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;background-color:rgb(255, 255, 255);">);</span></div><div class="" id="yiv8346282740yqt62865"><div><font face="HelveticaNeue, Helvetica
Neue, Helvetica, Arial, Lucida Grande, sans-serif"><span style="font-size:13px;background-color:rgb(255, 255, 255);"><br clear="none"></span></font><div><div>On Apr 4, 2014, at 11:37 AM, Needell Gerald <<a rel="nofollow" shape="rect" ymailto="mailto:jerry.needell@unh.edu" target="_blank" href="mailto:jerry.needell@unh.edu">jerry.needell@unh.edu</a>> wrote:</div><br class="" clear="none"><blockquote type="cite"></blockquote></div></div></div></div><div class="" id="yiv8346282740yqt93869"><div><div><div>Alberto,</div><div>No. My suggestion is to use the rtems_interrupt_catch but then enable the interrupt as in the example .</div><div>-Jerry </div><div><br clear="none">On Apr 4, 2014, at 11:33, Alberto Parnaso <<a rel="nofollow" shape="rect" ymailto="mailto:pafbat00@yahoo.es" target="_blank" href="mailto:pafbat00@yahoo.es">pafbat00@yahoo.es</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div class=""
style="background-color:rgb(255, 255, 255);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:10pt;"><div><span></span></div><div>Hi Jerry, thank you very much for your response. If I have understand correctly I may have to install the interrupt not with "rtems_interrupt_catch" but using "_CPU_ISR_install_raw_handler". Is that correct? I am out of work now but I will test it on Monday and come back with the results. Thanks indeed!</div><div><br clear="none"></div><div>Alberto.<br clear="none"></div> <div class="" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt;"> <div class="" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt;"> <div dir="ltr"> <div class="" style="margin:5px 0px;padding:0px;border:1px solid rgb(204, 204, 204);height:0px;line-height:0;font-size:0px;"></div> <font
face="Arial" size="2"> <b><span style="font-weight:bold;">De:</span></b> Needell Gerald <<a rel="nofollow" shape="rect" ymailto="mailto:jerry.needell@unh.edu" target="_blank" href="mailto:jerry.needell@unh.edu">jerry.needell@unh.edu</a>><br clear="none"> <b><span style="font-weight:bold;">Para:</span></b> Alberto Parnaso <<a rel="nofollow" shape="rect" ymailto="mailto:pafbat00@yahoo.es" target="_blank" href="mailto:pafbat00@yahoo.es">pafbat00@yahoo.es</a>> <br clear="none"><b><span style="font-weight:bold;">CC:</span></b> Jerry Needell <<a rel="nofollow" shape="rect" ymailto="mailto:jerry.needell@unh.edu" target="_blank" href="mailto:jerry.needell@unh.edu">jerry.needell@unh.edu</a>>; RTEMS Send User List <<a rel="nofollow" shape="rect" ymailto="mailto:rtems-users@rtems.org" target="_blank" href="mailto:rtems-users@rtems.org">rtems-users@rtems.org</a>> <br clear="none"> <b><span style="font-weight:bold;">Enviado:</span></b>
Viernes 4 de abril de 2014 16:25<br clear="none"> <b><span style="font-weight:bold;">Asunto:</span></b> Re: Installing interrupts for a custom driver<br clear="none"> </font> </div> <div class=""><br clear="none"><div id="yiv8346282740"><div>Alberto,<div>This may not have been correct- Take a look at the <span class="" style="font-family:Menlo;font-size:11px;">c/src/lib/libbsp/sparc/leon3/startup/</span>setec.c function from the LEON3 BSP (RTEMS 4.9.2) - attached:</div><div>After calling
rtems_catch_interrupt the LEON3 interrupt is then enabled - I install my handlers as a type=1 RTEMS interrupt.</div><div><br clear="none"></div><div>I hope that helps</div><div>- Jerry</div><div><br clear="none"></div><div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">/* set_vector</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * This routine installs an interrupt vector on the SPARC simulator.</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * INPUT PARAMETERS:</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * handler - interrupt handler entry point</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *
vector - vector
number</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * type - 0 indicates raw hardware connect</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * 1 indicates RTEMS interrupt connect</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * OUTPUT PARAMETERS: NONE</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * RETURNS:</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * address of previous interrupt handler</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class=""
style="margin:0px;font-family:Menlo;font-size:11px;"> * COPYRIGHT (c)
1989-1998.</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * On-Line Applications Research Corporation (OAR).</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * The license and distribution terms for this file may be</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * found in the file LICENSE in this distribution or at</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * <a rel="nofollow" shape="rect" target="_blank" href="http://www.rtems.com/license/LICENSE">http://www.rtems.com/license/LICENSE</a>.</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * Ported to LEON implementation of the SPARC by On-Line
Applications</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * Research Corporation (OAR) under contract to the European Space </div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * Agency (ESA).</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * LEON modifications of respective RTEMS file: COPYRIGHT (c) 1995. </div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * European Space Agency.</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> *</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> * $Id: setvec.c,v 1.2 2006/01/09 10:41:21 ralf Exp $</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> */</div><div class=""
style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">#include <bsp.h></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">rtems_isr_entry set_vector( /* returns old vector */</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> rtems_isr_entry handler, /* isr routine */</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> rtems_vector_number vector, /* vector number */</div><div class=""
style="margin:0px;font-family:Menlo;font-size:11px;"> int type
/* RTEMS or RAW intr */</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">)</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">{</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> rtems_isr_entry previous_isr;</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> uint32_t real_trap;</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> uint32_t source;</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> if ( type )</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> rtems_interrupt_catch( handler, vector, &previous_isr );</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">
else </div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> _CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr );</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> real_trap = SPARC_REAL_TRAP_NUMBER( vector );</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> if ( LEON_INT_TRAP( real_trap ) ) {</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"> <br class="" clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> source = LEON_TRAP_SOURCE( real_trap );</div><div class=""
style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> LEON_Clear_interrupt( source );</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> LEON_Unmask_interrupt( source );</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> }</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;"> return previous_isr;</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;">}</div><div class="" style="margin:0px;font-family:Menlo;font-size:11px;min-height:13px;"><br clear="none"></div><div class="" id="yiv8346282740yqt21097"><div>On Apr 4, 2014, at 9:33 AM, Needell Gerald <<a rel="nofollow" shape="rect" ymailto="mailto:jerry.needell@unh.edu"
target="_blank" href="mailto:jerry.needell@unh.edu">jerry.needell@unh.edu</a>> wrote:</div><br class="" clear="none"><blockquote type="cite"></blockquote></div></div></div><div class="" id="yiv8346282740yqt79739"><div style="">Alberto,<div>If I recall correctly, rtems_interrupt_catch installs the new interrupt handler, but does not enable it. You will also need to call rtems_interrupt_enable.</div><div>Good luck!</div><div>Jerry</div><div><br clear="none"><div><div>On Apr 4, 2014, at 9:12 AM, Alberto Parnaso <<a rel="nofollow" shape="rect" ymailto="mailto:pafbat00@yahoo.es" target="_blank" href="mailto:pafbat00@yahoo.es">pafbat00@yahoo.es</a>> wrote:</div><br class="" clear="none"><blockquote type="cite"><div><div style="font-family:HelveticaNeue,;"><div class=""><div id="yiv8346282740"><div style="font-family:HelveticaNeue,;"><div class=""><div id="yiv8346282740"><div style="font-family:HelveticaNeue,;"><div class=""> <div class=""><div
id="yiv8346282740"><div style="font-family:HelveticaNeue,;">Hi,
I am newbie in RTEMS and I am trying to install an interrupt into the
interrupt controller to be capable of using an APBUART peripheral within
a LEON3 based embedded processor. I configure the system so driver
manager configures at BSP Start the console and the timer. I do have two
APBUART configured in the system and my intention is to use the first
one with console/termios driver and the second one with my own driver.
Here is a copy the output of "info sys" command:<br clear="none"><br clear="none"><br clear="none"><div><<</div><div>grmon2> info sys<br clear="none"> cpu0 Aeroflex Gaisler LEON3 SPARC V8 Processor <br clear="none"> AHB Master
0<br clear="none"> ahbjtag0 Aeroflex Gaisler JTAG Debug Link <br clear="none"> AHB Master 1<br clear="none"> mctrl0 European Space Agency LEON2 Memory Controller <br clear="none"> AHB: 00000000 - 20000000<br clear="none"> AHB: 20000000 - 40000000<br clear="none"> AHB: 40000000 - 80000000<br clear="none">
APB: 80000000 -
80000100<br clear="none"> 32-bit prom @ 0x00000000<br clear="none"> 32-bit static ram: 2 * 512 kbyte @ 0x40000000<br clear="none"> apbmst0 Aeroflex Gaisler AHB/APB Bridge <br clear="none"> AHB: 80000000 - 80100000<br clear="none"> dsu0 Aeroflex Gaisler LEON3 Debug Support Unit <br clear="none"> AHB: 90000000 - A0000000<br clear="none">
CPU0: win 8, hwbp 2, V8 mul/div, lddel 1, GRFPU-lite<br clear="none">
stack pointer 0x400ffff0<br clear="none"> icache 1 * 4 kB, 32 B/line <br clear="none"> dcache 1 * 4 kB, 32 B/line <br clear="none"> uart0 Aeroflex Gaisler Generic UART <br clear="none"> APB: 80000100 - 80000200<br clear="none"> IRQ: 2<br clear="none"> Baudrate 38343<br
clear="none"> irqmp0 Aeroflex Gaisler Multi-processor
Interrupt Ctrl. <br clear="none"> APB: 80000200 - 80000300<br clear="none"> gptimer0 Aeroflex Gaisler Modular Timer Unit <br clear="none"> APB: 80000300 - 80000400<br clear="none"> IRQ: 8<br clear="none"> 8-bit scalar, 2 * 32-bit timers, divisor 50<br clear="none"> uart1 Aeroflex Gaisler Generic UART <br clear="none"> APB: 80000900 - 80000A00<br
clear="none">
IRQ: 3<br clear="none"> Baudrate 38343<br clear="none"> gpio0 Aeroflex Gaisler General Purpose I/O port <br clear="none"> APB: 80000B00 - 80000C00</div><div style="font-family:HelveticaNeue,;">>><br clear="none"></div><div><br clear="none"></div><div style="font-family:HelveticaNeue,;">I
have wrote a testing app to check if both UARTs work and also to try to
install a handler for RX on the second UART. Here is my code:</div><div style="font-family:HelveticaNeue,;"><br clear="none"></div><div style="font-family:HelveticaNeue,;"><<</div><div style="font-family:HelveticaNeue,;">#include <rtems.h><br clear="none"><br clear="none">rtems_task Init( rtems_task_argument argument); /* forward declaration needed */<br clear="none"><br clear="none">/* configuration information */<br clear="none">#define CONFIGURE_INIT<br clear="none">#include <bsp.h> /* for device driver prototypes
*/<br clear="none"><br clear="none"><br clear="none">#define
CONFIGURE_RTEMS_INIT_TASKS_TABLE<br clear="none">#define
CONFIGURE_MAXIMUM_TASKS 4<br clear="none">#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER<br clear="none">#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER<br clear="none">#include <rtems/confdefs.h><br clear="none"><br clear="none">#include <stdio.h><br clear="none">#include <stdlib.h><br clear="none"><br clear="none">#include <sys/types.h><br clear="none">#include <sys/stat.h><br clear="none">#include <unistd.h><br clear="none">#include <errno.h><br clear="none">#include <apbuart.h><br clear="none"><br clear="none">// Global Variable to check if Interrupt has been signaled.<br clear="none">unsigned char uc_intr_flag;<br clear="none"><br clear="none">// Interrupt handler for APBUART peripheral <br clear="none">void UARTInterruptHandler ()<br clear="none">{<br clear="none"> uc_intr_flag = 1;<br clear="none">}<br
clear="none"><br clear="none">rtems_task Init (rtems_task_argument ignored)<br clear="none">{<br clear="none"><br clear="none"> int i;<br clear="none"> rtems_status_code ret_status;<br clear="none"> rtems_isr_entry old_handler;<br clear="none"> volatile int *apbuart1 =
(int*)0x80000900;<br clear="none"> volatile int aux;<br clear="none"><br clear="none"> // Reset Interrupt Flag<br clear="none"> uc_intr_flag = 0;<br clear="none"><br clear="none"> printf("APB UART TEST with Interrupts\n");<br clear="none"><br clear="none"> aux = apbuart1[1];<br clear="none"> printf("APBUART1 STATUS: 0x%08X\n", aux);<br clear="none"> aux = apbuart1[2];<br clear="none"> printf("APBUART1 CONTROL: 0x%08X\n", aux);<br clear="none"> <br clear="none"> // Install UARTInterruptHandler at vector number 3 <br clear="none"> ret_status = rtems_interrupt_catch(<br clear="none"> (rtems_isr_entry)UARTInterruptHandler,<br clear="none">
(rtems_vector_number)3,<br clear="none"> &old_handler);<br clear="none"> switch (ret_status)<br clear="none"> {<br clear="none">
case RTEMS_SUCCESSFUL :<br clear="none"> printf("rtems_interrupt_catch: OK. New Interrupt installed for IRQ 3 - APBUART 2.\n");<br clear="none"> break ;<br clear="none"><br clear="none"> case RTEMS_INVALID_NUMBER :<br clear="none"> printf("rtems_interrupt_catch: RTEMS_INVALID_NUMBER.\n");<br clear="none"> break ;<br clear="none"><br clear="none"> case RTEMS_INVALID_ADDRESS :<br clear="none"> printf("rtems_interrupt_catch: RTEMS_INVALID_ADDRESS.\n");<br clear="none">
break ;<br clear="none"><br clear="none"> default
:<br clear="none"> printf("rtems_interrupt_catch: Unknown error.\n");<br clear="none"> break ;<br clear="none"> }<br clear="none"><br clear="none"> // Tell uart hardware to initialize directly<br clear="none"> /* Enable receiver (with interrupts) & Transmitter */<br clear="none"> apbuart1[2] = APBUART_CTRL_RE | APBUART_CTRL_TE | APBUART_CTRL_RI;<br clear="none"> aux = apbuart1[1];<br clear="none"> printf("UART1 STATUS: 0x%02X\n", aux);<br clear="none"> aux = apbuart1[2];<br clear="none"> printf("UART1 CONTROL: 0x%08X\n", aux);<br clear="none"><br clear="none"> // Write a character though APBUART1 to test it<br clear="none"> apbuart1[0] =
0xD8;<br clear="none"><br clear="none"> while (1)<br clear="none"> { // Perform some active wait time<br clear="none"> for (i
= 2000000; i > 0; i--);<br clear="none"><br clear="none"> printf("Hello World\n");<br clear="none"> apbuart1[0] = 0xD8;<br clear="none"> // If interrupt received, read from APBUART<br clear="none"> if (uc_intr_flag == 1)<br clear="none"> {<br clear="none"> uc_intr_flag = 0;<br clear="none"> aux = apbuart1[0];<br clear="none"> printf("Interrupt received from UART: data = %X\n", aux);<br clear="none"> }<br clear="none"> }<br clear="none"><br clear="none"> exit (0);<br clear="none">}<br clear="none">>></div><div
style="font-family:HelveticaNeue,;"><br clear="none"></div><div style="font-family:HelveticaNeue,;">First
UART (ie. debug UART) works fine and output data through STDOUT
properly. Data sent through second UART is received also by another
external terminal, and in other test I have been capable of receiving
too. However UARTInterruptHandler is never signaled, thus I guess I am
missing something with the interrupt instalation. <br clear="none"></div><div style="font-family:HelveticaNeue,;"><br clear="none"></div><div style="font-family:HelveticaNeue,;">Could any one see anything missing in this code? I
would very much appreciate some help. Any clue on how to properly use interrupts will help me a lot!</div><div style="font-family:HelveticaNeue,;"><br clear="none"></div><div style="font-family:HelveticaNeue,;">Thanks!</div><div style="font-family:HelveticaNeue,;">Alberto.<br clear="none"></div></div></div></div> </div>
</div></div></div></div></div></div><div><br clear="none"></div></div></div>_______________________________________________<br clear="none">rtems-users mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:rtems-users@rtems.org" target="_blank" href="mailto:rtems-users@rtems.org">rtems-users@rtems.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.rtems.org/mailman/listinfo/rtems-users">http://www.rtems.org/mailman/listinfo/rtems-users</a><br clear="none"></blockquote></div><br clear="none"></div></div><br clear="none"></div></div><br clear="none"><br clear="none"></div> </div> </div> </div></blockquote></div>_______________________________________________<br clear="none">rtems-users mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:rtems-users@rtems.org" target="_blank" href="mailto:rtems-users@rtems.org">rtems-users@rtems.org</a><br
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