Add support for Arduino Mega external SRAM.

Using external SRAM (like Rugged Circuits "QuadRAM" board) we can have
up to 55KB of capture buffer space.

README

@@ -1,15 +1,6 @@
 SUMP compatible logic analyzer for Arduino
 ==========================================
 
-NOTE: With v0.11 you can now sample at 4MHz & 2MHz rates in addition to the 
-      previous 1MHz and lower rates.  This is done via unrolled loops which
-      makes the source code huge and the binary takes much more of the flash.
-      v0.11 is just slightly to big for an ATmega168's flash.  You can comment
-      out either captureInline2mhz() or captureInline4mhz() and it will fit. 
-
-NOTE: v0.09 switched the channels BACK to pins 8-13 for trigger reliability.
-      Please report any issues.  Uncomment USE_PORTD for pins 2-7.
-
 This Arduino sketch implements a SUMP protocol compatible with the standard
 SUMP client as well as the alternative client from here:
 	http://www.lxtreme.nl/ols/
@@ -43,7 +34,7 @@ platform, but on the mac it is here by default:
 To use this with the original or alternative SUMP clients,
 use these settings:
 
-Sampling rate: 4MHz (or lower)
+Sampling rate: 1MHz (or lower)
 Channel Groups: 0 (zero) only
 Recording Size:
    ATmega168:  532 (or lower)
@@ -60,5 +51,5 @@ Please try it out and report back.
 This master branch now supports Arduino 1.0 only.
 Checkout branch logic_analyzer_v0_5 for Arduino 22 support.
 
-Release: v0.11 August 3, 2013.
+Release: v0.06 November 4, 2011.
 

logic_analyzer.ino

@@ -2,7 +2,7 @@
  *
  * SUMP Protocol Implementation for Arduino boards.
  *
- * Copyright (c) 2011,2012,2013 Andrew Gillham
+ * Copyright (c) 2011 Andrew Gillham
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,20 +25,21 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
+ *	$Id: logic_analyzer.pde,v 1.17 2011-08-04 02:31:01 gillham Exp $
  *
  */
 
 /*
- * NOTE: v0.09 switched the channels BACK to pins 8-13 for trigger reliability.
- *       Please report any issues.  Uncomment USE_PORTD for pins 2-7.
- *
  * This Arduino sketch implements a SUMP protocol compatible with the standard
  * SUMP client as well as the alternative client from here:
  *	http://www.lxtreme.nl/ols/
  *
  * This SUMP protocol compatible logic analyzer for the Arduino board supports
- * 6 channels consisting of digital pins 2-7, which are the last 6 bits (2-7)
- * of PORTD.  Bits 0 & 1 are the UART RX/TX pins.
+ * 5 channels consisting of digital pins 8-12, which are the first 5 bits (0-4)
+ * of PORTB. Arduino pin 13 / bit 5 is the Arduino LED, bits 6 & 7 are the
+ * crystal oscillator pins.
+ * Uncomment CHAN5 below if you want to use the LED pin as an input and have
+ * 6 channels.
  *
  * On the Arduino Mega board 8 channels are supported and 7k of samples.
  * Pins 22-29 (Port A) are used by default, you can change the 'CHANPIN' below
@@ -63,7 +64,7 @@
  * To use this with the original or alternative SUMP clients,
  * use these settings:
  * 
- * Sampling rate: 4MHz (or lower)
+ * Sampling rate: 1MHz (or lower)
  * Channel Groups: 0 (zero) only
  * Recording Size:
  *    ATmega168:  532 (or lower)
@@ -71,14 +72,13 @@
  *    ATmega2560: 7168 (or lower)
  * Noise Filter: doesn't matter
  * RLE: disabled (unchecked)
- *    NOTE: Preliminary RLE support for 50Hz or less exists, please test it.
  *
  * Triggering is still a work in progress, but generally works for samples
  * below 1MHz.  1MHz works for a basic busy wait trigger that doesn't store
  * until after the trigger fires.
  * Please try it out and report back.
  *
- * Release: v0.11 August 3, 2013.
+ * Release: v0.06 November 4, 2011.
  *
  */
 
@@ -98,46 +98,42 @@ void get_metadata(void);
 void debugprint(void);
 void debugdump(void);
 
-
-/*
- * Should we use PORTD or PORTB?  (default is PORTB)
- * PORTD support with triggers seems to work but needs more testing.
- */
-//#define USE_PORTD 1
-
 /*
+ * Uncomment CHAN5 to use it as an additional input on a normal Arduino.
+ * You'll need to change the number of channels in the device profile as well.
+ *
+ * Uncomment MEGARAM if you have an Arduino Mega with an external SRAM board with
+ * at least 64KB on it.
+ *
  * Arduino device profile:      ols.profile-agla.cfg
  * Arduino Mega device profile: ols.profile-aglam.cfg
+ * Arduino Mega RAM device profile: ols.profile-aglamr.cfg
  */
+
+#define MEGARAM 1
+
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-#define CHANPIN PINA
-#define CHAN0 22
-#define CHAN1 23
-#define CHAN2 24
-#define CHAN3 25
-#define CHAN4 26
-#define CHAN5 27
-#define CHAN6 28
-#define CHAN7 29
-#else
-#if defined(USE_PORTD)
-#define CHANPIN PIND
-#define CHAN0 2
-#define CHAN1 3
-#define CHAN2 4
-#define CHAN3 5
-#define CHAN4 6
-#define CHAN5 7
+#define DEBUGPORT PORTH
+#define DEBUGDDR DDRH
+#define CHANPIN PINF
+#define CHAN0 A0
+#define CHAN1 A1
+#define CHAN2 A2
+#define CHAN3 A3
+#define CHAN4 A4
+#define CHAN5 A5
+#define CHAN6 A6
+#define CHAN7 A7
 #else
+#define DEBUGPORT PORTD
+#define DEBUGDDR DDRD
 #define CHANPIN PINB
 #define CHAN0 8
 #define CHAN1 9
 #define CHAN2 10
 #define CHAN3 11
 #define CHAN4 12
-/* Comment out CHAN5 if you don't want to use the LED pin for an input */
-#define CHAN5 13
-#endif /* USE_PORTD */
+//#define CHAN5 13
 #endif
 #define ledPin 13
 
@@ -153,40 +149,39 @@ void debugdump(void);
 #define SUMP_TRIGGER_VALUES 0xC1
 #define SUMP_TRIGGER_CONFIG 0xC2
 
-/* Most flags (except RLE) are ignored. */
+/* flags are ignored. */
 #define SUMP_SET_DIVIDER 0x80
 #define SUMP_SET_READ_DELAY_COUNT 0x81
 #define SUMP_SET_FLAGS 0x82
-#define SUMP_SET_RLE 0x0100
 
 /* extended commands -- self-test unsupported, but metadata is returned. */
 #define SUMP_SELF_TEST 0x03
 #define SUMP_GET_METADATA 0x04
 
-/* ATmega168:  532 (or lower)
- * ATmega328:  1024 (or lower)
- * ATmega2560: 7168 (or lower)
+
+/*
+ * Default capture buffer sizes. Lower values should work, but the metadata and/or
+ * device profiles will need to be adjusted to match.
+ * ATmega168:  532
+ * ATmega328:  1024 (1KB)
+ * ATmega2560: 7168 (7KB)
+ * ATmega2560+external SRAM: 56320 (55KB)
  */
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-#define DEBUG_CAPTURE_SIZE 7168
-#define CAPTURE_SIZE 7168
+
+#if defined(MEGARAM)
+  #define DEBUG_CAPTURE_SIZE 56320
+  #define CAPTURE_SIZE 56320
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+  #define DEBUG_CAPTURE_SIZE 7168
+  #define CAPTURE_SIZE 7168
 #elif defined(__AVR_ATmega328P__)
-#define DEBUG_CAPTURE_SIZE 1024
-#define CAPTURE_SIZE 1024
+  #define DEBUG_CAPTURE_SIZE 1024
+  #define CAPTURE_SIZE 1024
 #else
-#define DEBUG_CAPTURE_SIZE 532
-#define CAPTURE_SIZE 532
+  #define DEBUG_CAPTURE_SIZE 532
+  #define CAPTURE_SIZE 532
 #endif
 
-#ifdef USE_PORTD
-#define DEBUG_ENABLE DDRB = DDRB | B00000001
-#define DEBUG_ON PORTB = B00000001
-#define DEBUG_OFF PORTB = B00000000
-#else
-#define DEBUG_ENABLE DDRD = DDRD | B10000000
-#define DEBUG_ON PORTD = B10000000
-#define DEBUG_OFF PORTD = B00000000
-#endif
 #define DEBUG
 #ifdef DEBUG
 #define MAX_CAPTURE_SIZE DEBUG_CAPTURE_SIZE
@@ -206,7 +201,20 @@ byte savebytes[128];
 int savecount = 0;
 #endif /* DEBUG */
 
+/*
+ * External SRAM adds 56,320 (55kb) directly addressable bytes starting at 0x2200.
+ * We access it via a hard coded pointer instead of a directly allocated array like
+ * on other Arduinos.
+ *
+ * We only use bank 0 as our capture routines can't spare the cycles to switch banks.
+ *
+ */
+
+#ifdef MEGARAM
+byte *logicdata = (byte *) 0x2200U; 
+#else
 byte logicdata[MAX_CAPTURE_SIZE];
+#endif
 unsigned int logicIndex = 0;
 unsigned int triggerIndex = 0;
 unsigned int readCount = MAX_CAPTURE_SIZE;
@@ -216,66 +224,52 @@ unsigned int trigger_values = 0;
 unsigned int useMicro = 0;
 unsigned int delayTime = 0;
 unsigned long divider = 0;
-boolean rleEnabled = 0;
 
 void setup()
 {
+#ifdef MEGARAM
+  XMCRA = _BV(SRE); // Enable external memory interface
+  pinMode(38, OUTPUT); digitalWrite(38, LOW); // Enable RAM device
+  pinMode(42, OUTPUT);   // Make the bank selection bits output pins
+  pinMode(43, OUTPUT);   // Make the bank selection bits output pins
+  pinMode(44, OUTPUT);   // Make the bank selection bits output pins
+  digitalWrite(42, LOW); // Select bank 0 (see below for discussion)
+  digitalWrite(43, LOW); // Select bank 0 (see below for discussion)
+  digitalWrite(44, LOW); // Select bank 0 (see below for discussion)
+#endif // MEGARAM
+
   Serial.begin(115200);
 
   /*
-   * set debug pin (digital pin 8) to output right away so it settles.
+   * set debug pin to output right away so it settles.
    * this gets toggled during sampling as a way to measure
    * the sample time.  this is used during development to
    * properly pad out the sampling routines.
    */
-  DEBUG_ENABLE; /* debug measurement pin */
+  DEBUGDDR = DEBUGDDR | B10000000; /* debug measurement pin */
 
   pinMode(CHAN0, INPUT);
   pinMode(CHAN1, INPUT);
   pinMode(CHAN2, INPUT);
   pinMode(CHAN3, INPUT);
   pinMode(CHAN4, INPUT);
-#ifdef CHAN5
-  pinMode(CHAN5, INPUT);
-#endif
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+  pinMode(CHAN5, INPUT);
   pinMode(CHAN6, INPUT);
   pinMode(CHAN7, INPUT);
-#else
-#ifndef CHAN5
   pinMode(ledPin, OUTPUT);
-#endif
+#else
+#ifdef CHAN5
+  pinMode(CHAN5, INPUT);
+#else
+  pinMode(ledPin, OUTPUT);
+#endif /* CHAN5 */
 #endif /* Mega */
-
-#if 0
-
-  /*
-   * This sets up timer2 at 100KHz to toggle a pin.  This is useful
-   * for debugging as it gives an internally precise signal source.
-   * This doesn't work on the Arduino Mega.  Use on the Uno or older.
-   * We're using the same clock source for the timer & our sampling.
-   */
-
-  /* Set OC2A (digital pin 11) to output so we can toggle it. */
-  pinMode(11, OUTPUT);
-
-  /* reset timer to zero */
-  TCNT2 = 0;
-  TCCR2A = 0;
-  TCCR2B = 0;
-  OCR2A = 0;
-
-  /* Set CTC mode and toggle on compare. */
-  TCCR2A = _BV (COM2A0) | _BV (WGM21);
-  /* 79 = 100KHz, 15 = 500KHz, 7 = 1MHz */
-  OCR2A = 79;
-  TCCR2B = _BV (CS20);
-#endif
 }
 
 void loop()
 {
-  int i;
+  unsigned int i;
 
   if (Serial.available() > 0) {
     cmdByte = Serial.read();
@@ -308,16 +302,7 @@ void loop()
        * so in that case (delayTime == 1 and triggers enabled) use
        * captureMicro() instead of triggerMicro().
        */
-
-      if (divider == 24) {
-        /* 4.0MHz */
-        captureInline4mhz();
-      } 
-      else if (divider == 49) {
-        /* 2.0MHz */
-        captureInline2mhz();
-      } 
-      else if (useMicro) {
+      if (useMicro) {
         if (trigger && (delayTime != 1)) {
           triggerMicro();
         } 
@@ -335,11 +320,7 @@ void loop()
        * we can just use it directly as our trigger mask.
        */
       getCmd();
-#ifdef USE_PORTD
-      trigger = cmdBytes[0] << 2;
-#else
       trigger = cmdBytes[0];
-#endif
       break;
     case SUMP_TRIGGER_VALUES:
       /*
@@ -347,11 +328,7 @@ void loop()
        * defines whether we're looking for it to be high or low.
        */
       getCmd();
-#ifdef USE_PORTD
-      trigger_values = cmdBytes[0] << 2;
-#else
       trigger_values = cmdBytes[0];
-#endif
       break;
     case SUMP_TRIGGER_CONFIG:
       /* read the rest of the command bytes, but ignore them. */
@@ -390,9 +367,8 @@ void loop()
         delayCount = MAX_CAPTURE_SIZE;
       break;
     case SUMP_SET_FLAGS:
-      /* read the rest of the command bytes and check if RLE is enabled. */
+      /* read the rest of the command bytes, but ignore them. */
       getCmd();
-      rleEnabled = ((cmdBytes[1] & B1000000) != 0);
       break;
     case SUMP_GET_METADATA:
       /*
@@ -425,7 +401,9 @@ void loop()
        * you can use the Arduino serial monitor and send a '1' and get
        * a debug printout.  useless except for development.
        */
+#ifndef CHAN5
       blinkled();
+#endif /* !CHAN5 */
       debugprint();
       break;
     case '2':
@@ -434,6 +412,12 @@ void loop()
        */
       debugdump();
       break;
+    case '3':
+      /*
+       * This samples the channel pin and writes to the serial port.  Used for debugging.
+       */
+      Serial.print(CHANPIN, HEX);
+      break;
 #endif /* DEBUG */
     default:
       /* ignore any unrecognized bytes. */
@@ -494,7 +478,7 @@ void captureMicro() {
   unsigned int i;
 
   /*
-   * basic trigger, wait until all trigger conditions are met on port.
+   * basic trigger, wait until all trigger conditions are met on port B.
    * this needs further testing, but basic tests work as expected.
    */
   if (trigger) {
@@ -513,49 +497,51 @@ void captureMicro() {
    * this is used during development to measure the sample intervals.
    * it is best to just leave the toggling in place so we don't alter
    * any timing unexpectedly.
-   * Arduino digital pin 8 is being used here.
+   * Arduino pin 7 is being used here.
    */
-  DEBUG_ENABLE;
-#ifdef DEBUG
-  DEBUG_ON;
+  DEBUGDDR = DEBUGDDR | B10000000;
+  DEBUGPORT = B10000000;
   delayMicroseconds(20);
-  DEBUG_OFF;
+  DEBUGPORT = B00000000;
   delayMicroseconds(20);
-  DEBUG_ON;
+  DEBUGPORT = B10000000;
   delayMicroseconds(20);
-  DEBUG_OFF;
+  DEBUGPORT = B00000000;
   delayMicroseconds(20);
-#endif
 
   if (delayTime == 1) {
     /*
      * 1MHz sample rate = 1 uS delay so we can't use delayMicroseconds
      * since our loop takes some time.  The delay is padded out by hand.
      */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     for (i = 0 ; i < readCount; i++) {
       logicdata[i] = CHANPIN;
+#ifndef MEGARAM
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
+#endif /* MEGARAM */
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
   } 
   else if (delayTime == 2) {
     /*
      * 500KHz sample rate = 2 uS delay, still pretty fast so we pad this
      * one by hand too.
      */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     for (i = 0 ; i < readCount; i++) {
       logicdata[i] = CHANPIN;
+#ifndef MEGARAM
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
+#endif /* MEGARAM */
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
   } 
   else {
     /*
@@ -564,13 +550,15 @@ void captureMicro() {
      * a better logic analyzer)
      * start of real measurement
      */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     for (i = 0 ; i < readCount; i++) {
       logicdata[i] = CHANPIN;
       delayMicroseconds(delayTime - 1);
+#ifndef MEGARAM
       __asm__("nop\n\t""nop\n\t");
+#endif /* MEGARAM */
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
   }
 
   /* re-enable interrupts now that we're done sampling. */
@@ -581,11 +569,7 @@ void captureMicro() {
    * is done for any triggers, this is effectively the 0/100 buffer split.
    */
   for (i = 0 ; i < readCount; i++) {
-#ifdef USE_PORTD
-    Serial.write(logicdata[i] >> 2);
-#else
     Serial.write(logicdata[i]);
-#endif
   }
 }
 
@@ -607,60 +591,21 @@ void captureMicro() {
  * this basic functionality.
  */
 void captureMilli() {
-  unsigned int i = 0;
+  unsigned int i;
 
-  if(rleEnabled) {
-    /*
-     * very basic trigger, just like in captureMicros() above.
-     */
-    if (trigger) {
-      while ((trigger_values ^ (CHANPIN & B01111111)) & trigger);
-    }
+  /*
+   * very basic trigger, just like in captureMicros() above.
+   */
+  if (trigger) {
+    while ((trigger_values ^ CHANPIN) & trigger);
+  }
 
-    byte lastSample = 0;
-    byte sampleCount = 0;
-
-    while(i < readCount) {
-      /*
-       * Implementation of the RLE unlimited protocol: timings might be off a little
-       */
-      if(lastSample == (CHANPIN & B01111111) && sampleCount < 127) {
-        sampleCount++;
-        delay(delayTime);
-        continue;
-      }
-      if(sampleCount != 0) {
-        logicdata[i] = B10000000 | sampleCount;
-        sampleCount = 0;
-        i++;
-        continue;
-      }
-      logicdata[i] = (CHANPIN & B01111111);
-      lastSample = (CHANPIN & B01111111);
-      delay(delayTime);
-
-      i++;
-    }
-  } 
-  else {
-    /*
-     * very basic trigger, just like in captureMicros() above.
-     */
-    if (trigger) {
-      while ((trigger_values ^ CHANPIN) & trigger);
-    }
-
-    for (i = 0 ; i < readCount; i++) {
-      logicdata[i] = CHANPIN;
-      delay(delayTime);
-    }
+  for (i = 0 ; i < readCount; i++) {
+    logicdata[i] = CHANPIN;
+    delay(delayTime);
   }
   for (i = 0 ; i < readCount; i++) {
-#ifdef USE_PORTD
-    Serial.write(logicdata[i] >> 2);
-#else
     Serial.write(logicdata[i]);
-#endif
   }
 }
 
@@ -690,19 +635,17 @@ void triggerMicro() {
    * this is used during development to measure the sample intervals.
    * it is best to just leave the toggling in place so we don't alter
    * any timing unexpectedly.
-   * Arduino digital pin 8 is being used here.
+   * Arduino pin 7 is being used here.
    */
-  DEBUG_ENABLE;
-#ifdef DEBUG
-  DEBUG_ON;
+  DEBUGDDR = DEBUGDDR | B10000000;
+  DEBUGPORT = B10000000;
   delayMicroseconds(20);
-  DEBUG_OFF;
+  DEBUGPORT = B00000000;
   delayMicroseconds(20);
-  DEBUG_ON;
+  DEBUGPORT = B10000000;
   delayMicroseconds(20);
-  DEBUG_OFF;
+  DEBUGPORT = B00000000;
   delayMicroseconds(20);
-#endif
 
   if (delayTime == 1) {
     /*
@@ -726,9 +669,9 @@ void triggerMicro() {
      * we always start capturing at the start of the buffer
      * and use it as a circular buffer
      */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) {
-      /* DEBUG_OFF; */
+      /* DEBUGPORT = B00000000; */
       /* increment index. */
       logicIndex++;
       if (logicIndex >= readCount) {
@@ -739,12 +682,16 @@ void triggerMicro() {
        * without pin toggles, will try 1 nop.
        * __asm__("nop\n\t""nop\n\t""nop\n\t");
        */
+#ifndef MEGARAM
       __asm__("nop\n\t");
-      /* DEBUG_ON; */
+#endif /* MEGARAM */
+      /* DEBUGPORT = B10000000; */
     }
     /* this pads the immediate trigger case to 2.0 uS, just as an example. */
+#ifndef MEGARAM
     __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
-    DEBUG_OFF; /* debug timing measurement */
+#endif /* MEGARAM */
+    DEBUGPORT = B00000000; /* debug timing measurement */
 
     /* 
      * One sample size delay. ends up being 2 uS combined with assignment
@@ -752,14 +699,16 @@ void triggerMicro() {
      * between the trigger point and the subsequent samples.
      */
     delayMicroseconds(1);
+#ifndef MEGARAM
     __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
     __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
+#endif /* MEGARAM */
 
     /* 'logicIndex' now points to trigger sample, keep track of it */
     triggerIndex = logicIndex;
 
     /* keep sampling for delayCount after trigger */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     /*
      * this is currently taking:
      * 1025.5 uS for 512 samples. (512 samples, 0/100 split)
@@ -770,11 +719,13 @@ void triggerMicro() {
         logicIndex = 0;
       }
       logicdata[logicIndex++] = CHANPIN;
+#ifndef MEGARAM
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
+#endif /* MEGARAM */
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
     delayMicroseconds(100);
   } 
   else {
@@ -787,23 +738,17 @@ void triggerMicro() {
      * and use it as a circular buffer
      *
      */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) {
-      /* DEBUG_OFF; */
+      /* DEBUGPORT = B00000000; */
       /* increment index. */
       logicIndex++;
       if (logicIndex >= readCount) {
         logicIndex = 0;
       }
-      else {
-        /* pad the same number of cycles as the above assignment (needs verification) */
-        __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
-      }
-      delayMicroseconds(delayTime - 3);
-      __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
-      /* DEBUG_ON; */
+      /* DEBUGPORT = B10000000; */
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
 
     /* 'logicIndex' now points to trigger sample, keep track of it */
     triggerIndex = logicIndex;
@@ -812,24 +757,23 @@ void triggerMicro() {
      * This needs adjustment so that we have the right spacing between the
      * before trigger samples and the after trigger samples.
      */
-    delayMicroseconds(delayTime - 2);
-    __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
-    __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
-    __asm__("nop\n\t""nop\n\t""nop\n\t");
+    delayMicroseconds(delayTime);
 
     /* keep sampling for delayCount after trigger */
-    DEBUG_ON; /* debug timing measurement */
+    DEBUGPORT = B10000000; /* debug timing measurement */
     for (i = 0 ; i < delayCount; i++) {
       if (logicIndex >= readCount) {
         logicIndex = 0;
       }
       logicdata[logicIndex++] = CHANPIN;
       delayMicroseconds(delayTime - 3);
+#ifndef MEGARAM
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
+#endif /* MEGARAM */
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
       __asm__("nop\n\t""nop\n\t""nop\n\t");
     }
-    DEBUG_OFF; /* debug timing measurement */
+    DEBUGPORT = B00000000; /* debug timing measurement */
     delayMicroseconds(100);
   }
 
@@ -850,11 +794,7 @@ void triggerMicro() {
     if (logicIndex >= readCount) {
       logicIndex = 0;
     }
-#ifdef USE_PORTD
-    Serial.write(logicdata[logicIndex++] >> 2);
-#else
     Serial.write(logicdata[logicIndex++]);
-#endif
   }
 }
 
@@ -898,28 +838,27 @@ void get_metadata() {
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
   Serial.write('M');
 #endif /* Mega */
+#if defined(MEGARAM)
+  Serial.write('R');
+#endif /* MEGARAM */
   Serial.write('v');
   Serial.write('0');
   Serial.write((uint8_t)0x00);
 
-  /* firmware version */
-  Serial.write((uint8_t)0x02);
-  Serial.write('0');
-  Serial.write('.');
-  Serial.write('1');
-  Serial.write('1');
-  Serial.write((uint8_t)0x00);
-
   /* sample memory */
   Serial.write((uint8_t)0x21);
   Serial.write((uint8_t)0x00);
   Serial.write((uint8_t)0x00);
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  /* 7168 bytes */
+#if defined(MEGARAM)
+  /* 56320 bytes (55KB) */
+  Serial.write((uint8_t)0xDC);
+  Serial.write((uint8_t)0x00);
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+  /* 7168 bytes (7KB) */
   Serial.write((uint8_t)0x1C);
   Serial.write((uint8_t)0x00);
 #elif defined(__AVR_ATmega328P__)
-  /* 1024 bytes */
+  /* 1024 bytes (1KB) */
   Serial.write((uint8_t)0x04);
   Serial.write((uint8_t)0x00);
 #else
@@ -928,14 +867,14 @@ void get_metadata() {
   Serial.write((uint8_t)0x14);
 #endif /* Mega */
 
-  /* sample rate (4MHz) */
+  /* sample rate (1MHz) */
   Serial.write((uint8_t)0x23);
   Serial.write((uint8_t)0x00);
-  Serial.write((uint8_t)0x3D);
-  Serial.write((uint8_t)0x09);
-  Serial.write((uint8_t)0x00);
+  Serial.write((uint8_t)0x0F);
+  Serial.write((uint8_t)0x42);
+  Serial.write((uint8_t)0x40);
 
-  /* number of probes (6 by default on Arduino, 8 on Mega) */
+  /* number of probes (5 by default on Arduino, 8 on Mega) */
   Serial.write((uint8_t)0x40);
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
   Serial.write((uint8_t)0x08);
@@ -980,8 +919,6 @@ void debugprint() {
   Serial.println(logicIndex, DEC);
   Serial.print("triggerIndex = ");
   Serial.println(triggerIndex, DEC);
-  Serial.print("rleEnabled = ");
-  Serial.println(rleEnabled, DEC);
 
   Serial.println("Bytes:");
 
@@ -1002,17 +939,13 @@ void debugprint() {
  * of the sample buffer.
  */
 void debugdump() {
-  int i;
+  unsigned int i;
   int j = 1;
 
   Serial.print("\r\n");
 
   for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
-#ifdef USE_PORTD
-    Serial.print(logicdata[i] >> 2, HEX);
-#else
     Serial.print(logicdata[i], HEX);
-#endif
     Serial.print(" ");
     if (j == 32) {
       Serial.print("\r\n");
@@ -1024,12 +957,3 @@ void debugdump() {
 #endif /* DEBUG */
 
 
-
-
-
-
-
-
-
-
-

ols.profile-agla.cfg

@@ -7,11 +7,11 @@ device.description = Arduino Generic Logic Analyzer
 # The device interface, SERIAL only
 device.interface = SERIAL
 # The device's native clockspeed, in Hertz.
-device.clockspeed = 16000000
+device.clockspeed = 100000000
 # Whether or not double-data-rate is supported by the device (also known as the "demux"-mode).
 device.supports_ddr = false
 # Supported sample rates in Hertz, separated by comma's
-device.samplerates = 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000, 2000000, 4000000
+device.samplerates = 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000
 # What capture clocks are supported
 device.captureclock = INTERNAL
 # The supported capture sizes, in bytes
@@ -19,7 +19,7 @@ device.capturesizes = 64, 128, 256, 512, 1024
 # Whether or not the noise filter is supported
 device.feature.noisefilter = false
 # Whether or not Run-Length encoding is supported
-device.feature.rle = true
+device.feature.rle = false
 # Whether or not a testing mode is supported
 device.feature.testmode = false
 # Whether or not triggers are supported
@@ -30,7 +30,7 @@ device.trigger.stages = 1
 device.trigger.complex = false
 
 # The total number of channels usable for capturing
-device.channel.count = 6
+device.channel.count = 5
 # The number of channels groups, together with the channel count determines the channels per group
 device.channel.groups = 1
 # Whether the capture size is limited by the enabled channel groups
@@ -39,15 +39,13 @@ device.capturesize.bound = false
 device.channel.numberingschemes = DEFAULT
 
 # Is a delay after opening the port and device detection needed? (0 = no delay, >0 = delay in milliseconds)
-device.open.portdelay = 2000
-# The receive timeout for the device (in milliseconds, 100 = default, <=0 = no timeout)
-device.receive.timeout = 100
+device.open.portdelay = 500
 # Does the device need a high or low DTR-line to operate correctly? (high = true, low = false)
 device.open.portdtr = true
 # Which metadata keys correspond to this device profile? Value is a comma-separated list of (double quoted) names...
 device.metadata.keys = "AGLAv0"
 
-# In which order are samples sent back from the device? false = last sample first, true = first sample first
-device.samples.reverseOrder = true
+# In which order are samples sent back from the device? true = last sample first, false = first sample first
+device.samples.reverseOrder = false
 
 ###EOF###

ols.profile-aglam.cfg

@@ -7,11 +7,11 @@ device.description = Arduino Mega Logic Analyzer
 # The device interface, SERIAL only
 device.interface = SERIAL
 # The device's native clockspeed, in Hertz.
-device.clockspeed = 16000000
+device.clockspeed = 100000000
 # Whether or not double-data-rate is supported by the device (also known as the "demux"-mode).
 device.supports_ddr = false
 # Supported sample rates in Hertz, separated by comma's
-device.samplerates = 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000, 2000000, 4000000
+device.samplerates = 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000
 # What capture clocks are supported
 device.captureclock = INTERNAL
 # The supported capture sizes, in bytes
@@ -39,15 +39,13 @@ device.capturesize.bound = false
 device.channel.numberingschemes = DEFAULT
 
 # Is a delay after opening the port and device detection needed? (0 = no delay, >0 = delay in milliseconds)
-device.open.portdelay = 2000
-# The receive timeout for the device (in milliseconds, 100 = default, <=0 = no timeout)
-device.receive.timeout = 100
+device.open.portdelay = 1000
 # Does the device need a high or low DTR-line to operate correctly? (high = true, low = false)
 device.open.portdtr = true
 # Which metadata keys correspond to this device profile? Value is a comma-separated list of (double quoted) names...
 device.metadata.keys = "AGLAMv0"
 
-# In which order are samples sent back from the device? false = last sample first, true = first sample first
-device.samples.reverseOrder = true
+# In which order are samples sent back from the device? true = last sample first, false = first sample first
+device.samples.reverseOrder = false
 
 ###EOF###

ols.profile-aglamr.cfg

@@ -0,0 +1,51 @@
+# Configuration for Arduino MegaRAM Logic Analyzer profile
+
+# The short (single word) type of the device described in this profile
+device.type = AGLAMR
+# A longer description of the device
+device.description = Arduino MegaRAM Logic Analyzer
+# The device interface, SERIAL only
+device.interface = SERIAL
+# The device's native clockspeed, in Hertz.
+device.clockspeed = 100000000
+# Whether or not double-data-rate is supported by the device (also known as the "demux"-mode).
+device.supports_ddr = false
+# Supported sample rates in Hertz, separated by comma's
+device.samplerates = 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000
+# What capture clocks are supported
+device.captureclock = INTERNAL
+# The supported capture sizes, in bytes
+device.capturesizes = 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 56320
+# Whether or not the noise filter is supported
+device.feature.noisefilter = false
+# Whether or not Run-Length encoding is supported
+device.feature.rle = false
+# Whether or not a testing mode is supported
+device.feature.testmode = false
+# Whether or not triggers are supported
+device.feature.triggers = true
+# The number of trigger stages
+device.trigger.stages = 1
+# Whether or not "complex" triggers are supported
+device.trigger.complex = false
+
+# The total number of channels usable for capturing
+device.channel.count = 8
+# The number of channels groups, together with the channel count determines the channels per group
+device.channel.groups = 1
+# Whether the capture size is limited by the enabled channel groups
+device.capturesize.bound = false
+# Which numbering does the device support
+device.channel.numberingschemes = DEFAULT
+
+# Is a delay after opening the port and device detection needed? (0 = no delay, >0 = delay in milliseconds)
+device.open.portdelay = 1000
+# Does the device need a high or low DTR-line to operate correctly? (high = true, low = false)
+device.open.portdtr = true
+# Which metadata keys correspond to this device profile? Value is a comma-separated list of (double quoted) names...
+device.metadata.keys = "AGLAMRv0"
+
+# In which order are samples sent back from the device? true = last sample first, false = first sample first
+device.samples.reverseOrder = false
+
+###EOF###