[Commit-gnuradio] r6876 - gnuradio/branches/developers/matt/u2f/firmware

[eb]

Author: eb
Date: 2007-11-12 19:39:48 -0700 (Mon, 12 Nov 2007)
New Revision: 6876

Added:
   gnuradio/branches/developers/matt/u2f/firmware/buf_ram_zero.c
Modified:
   gnuradio/branches/developers/matt/u2f/firmware/Makefile.am
Log:
new: buf_ram_zero

Modified: gnuradio/branches/developers/matt/u2f/firmware/Makefile.am
===================================================================
--- gnuradio/branches/developers/matt/u2f/firmware/Makefile.am  2007-11-13 
02:33:59 UTC (rev 6875)
+++ gnuradio/branches/developers/matt/u2f/firmware/Makefile.am  2007-11-13 
02:39:48 UTC (rev 6876)
@@ -58,6 +58,7 @@
        blink_leds \
        blink_leds2 \
        buf_ram_test \
+       buf_ram_zero \
        eth_test \
        gen_eth_packets \
        ibs_rx_test \

Added: gnuradio/branches/developers/matt/u2f/firmware/buf_ram_zero.c
===================================================================
--- gnuradio/branches/developers/matt/u2f/firmware/buf_ram_zero.c               
                (rev 0)
+++ gnuradio/branches/developers/matt/u2f/firmware/buf_ram_zero.c       
2007-11-13 02:39:48 UTC (rev 6876)
@@ -0,0 +1,113 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+// checks if all buffer reads return 0.
+
+
+#include "u2_init.h"
+#include "memory_map.h"
+#include "hal_io.h"
+#include "eth_driver.h"
+#include "eth_mac.h"
+#include "pic.h"
+#include "bool.h"
+
+
+// Delay about one millisecond.
+//
+// Need 33,333 cycles at 33 MHz.
+// Each time around the loop is 10 cycles
+
+void
+delay_1ms(void)
+{
+  int  i;
+  for (i = 0; i < 3333; i++){
+    asm volatile ("or  r0, r0, r0\n\
+                  or  r0, r0, r0\n\
+                  or  r0, r0, r0\n\
+                  or  r0, r0, r0\n\
+                  or  r0, r0, r0\n\
+                  or  r0, r0, r0\n\
+                  or  r0, r0, r0\n");
+  }
+}
+
+// delay about ms milliseconds
+static void
+mdelay(int ms)
+{
+  int i;
+  for (i = 0; i < ms; i++)
+    delay_1ms();
+}
+
+static void
+write_bufs(void)
+{
+  int  i, n;
+  int  counter = 0;
+
+  for (n = 0; n < NBUFFERS; n++){
+    volatile int *p = buffer_ram(n);
+    for (i = 0; i < BUFFER_POOL_BUFFER_SIZE; i++)
+      p[i] = counter++;
+  }
+}
+
+// return number of errors detected
+static int
+check_bufs(void)
+{
+  int  i, n;
+  int  nerrors = 0;
+
+  for (n = 0; n < NBUFFERS; n++){
+    volatile int *p = buffer_ram(n);
+    for (i = 0; i < BUFFER_POOL_BUFFER_SIZE; i++)
+      if (p[i] != 0)
+       nerrors++;
+  }
+  return nerrors;
+}
+
+
+int
+main(void)
+{
+  u2_init();
+
+  output_regs->leds = 0;
+  mdelay(100);
+  output_regs->leds = 0x3;
+  mdelay(100);
+  output_regs->leds = 0;
+
+  write_bufs();
+  int nerrors = check_bufs();
+
+  if (nerrors == 0)
+    output_regs->leds = 0x3;           // leds on  -> PASS
+  else
+    output_regs->leds = 0x0;           // leds off -> FAIL
+
+  return 0;
+}


Property changes on: 
gnuradio/branches/developers/matt/u2f/firmware/buf_ram_zero.c
___________________________________________________________________
Name: svn:eol-style
   + native