Add empty LogicAnalyzer.h for arduino-lint.

Wrong delayTime in 500KHz menu

LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023 Andrew Gillham
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY ANDREW GILLHAM ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL ANDREW GILLHAM BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Makefile

@@ -1,19 +1,24 @@
 #
-# Makefile for an Arduino based logic analyzer using the 'arduino-core'
+# Makefile for an Arduino based logic analyzer using the arduino-cli
-# package and makefiles.
 #
-#	$Id: Makefile,v 1.3 2011-03-07 02:47:26 gillham Exp $
+
+TARGET	= logic_analyzer
+FQBN	= arduino:avr:diecimila
+SERIAL	= /dev/ttyUSB*
+
+
+all:
+	@echo ""
+	@echo "---> run 'make build' to compile for Arduino Duemilanove"
+	@echo "---> run 'make upload' to upload to /dev/ttyUSB*"
+	@echo ""
+
+build:
+	arduino-cli compile --fqbn $(FQBN) $(TARGET)
+
+upload:
+	arduino-cli upload --fqbn $(FQBN) --port $(SERIAL) $(TARGET)
+
+#
+# end-of-file
 #
-ARDUINO_DIR  = /usr/share/arduino
-
-TARGET       = logic_analyzer
-ARDUINO_LIBS = 
-
-MCU          = atmega328p
-F_CPU        = 16000000
-ARDUINO_PORT = /dev/ttyUSB*
-AVRDUDE_ARD_BAUDRATE = 57600
-AVRDUDE_ARD_PROGRAMMER = arduino
-
-include /usr/share/arduino/Arduino.mk
-

README

@@ -1,64 +0,0 @@
-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/
-
-This SUMP protocol compatible logic analyzer for the Arduino board supports
-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
-if something else works better for you.
-
-NOTE:
-If you are using the original SUMP client, or using the alternative client
-without the device profiles, then you will get a "device not found" error.
-You must DISABLE the Arduino auto reset feature to use this logic analyzer
-code. There are various methods to do this, some boards have a jumper,
-others require you to cut a trace.  You may also install a *precisely*
-120 Ohm resistor between the reset & 5V piins.  Make sure it is really
-120 Ohm or you may damage your board.  It is much easier to use the
-alternative SUMP client referenced above.
-
-The device profiles should be included with this code.  Copy them to the
-'plugins' directory of the client.  The location varies depending on the
-platform, but on the mac it is here by default:
-/Applications/LogicSniffer.app/Contents/Resources/Java/plugins
-
-To use this with the original or alternative SUMP clients,
-use these settings:
-
-Sampling rate: 4MHz (or lower)
-Channel Groups: 0 (zero) only
-Recording Size:
-   ATmega168:  532 (or lower)
-   ATmega328:  1024 (or lower)
-   ATmega2560: 7168 (or lower)
-Noise Filter: doesn't matter
-RLE: disabled (unchecked)
-
-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.
-
-This master branch now supports Arduino 1.0 only.
-Checkout branch logic_analyzer_v0_5 for Arduino 22 support.
-
-Release: v0.12 September 6, 2013.
-

README.md

@@ -0,0 +1,142 @@
+SUMP compatible logic analyzer for Arduino
+==========================================
+
+This Arduino sketch implements a SUMP protocol compatible logic analyzer.
+This implementation is compatible with the standard SUMP client as well as
+an alternative OLS client.  More recently support has been added to Sigrok.
+
+This logic analyzer for Arduino supports 6 channels consisting of digital
+pins 8-13, which are the first 6 bits (0-5) of PORTB.
+Arduino pin 13 / bit 5 is the Arduino LED, bits 6 & 7 are the crystal
+oscillator pins. Comment out CHAN5 if you don't want to use the
+LED pin for an input.
+
+On the Arduino Mega board 8 channels are supported and 7k of samples.
+Pins 22-29 (Port A) are used by default.
+
+Installation
+============
+
+You can use the GitHub 'Download ZIP' feature to get an installable "library"
+for use with the Arduino IDE.  Select 'Sketch -> Include Library -> Add .ZIP Libary'
+from the Arduino IDE 2.x and select the zip file you downloaded from GitHub, then select open.
+
+Once installed you can use the 'File -> Examples -> LogicAnalyzer' menu to find
+different versions of the sketches.  You might want to start with `logic_analyzer_sigrok`
+and use PulseView.
+
+Client Software
+===============
+
+Sigrok support via the 'ols' device configuration has been added. This
+mostly involved returning the capture buffer in the reverse order.
+
+Use the `logic_analyzer_sigrok` sketch.  Since the OLS alternative client
+mentioned below has some issues with newer Java versions, Sigrok is currently
+the only practical way to use this logic analyzer.  If you use an older machine
+with an older operating system and older Java you can probably use the OLS client.
+
+Sigrok support seems to work fairly well so I would currently recommend it for
+anyone interested in trying this sketch.
+
+Run PulseView like this on Linux: (I'll add Windows options after more testing)
+```
+PulseView --driver=ols:conn=/dev/ttyUSB0 --dont-scan
+```
+
+It may be necessary to exit and relaunch PulseView to get it to recognize the device.
+An easy way to test the device is using the `sigrok-cli` utility. The command below
+samples channel 2 at 1MHz.  If you get a device not found error, but /dev/ttyUSB0 exists,
+run this command a couple times and usually it will start working. Due to the way opening
+the serial port resets the Arduino there are some issues/bugs to work out yet.
+```
+sigrok-cli --driver=ols:conn=/dev/ttyUSB0 --config samplerate=1Mhz --config pattern=External --samples 1024 --channels 2
+```
+
+The OLS alternative client hasn't had an official release recently so you will
+need to compile it yourself.
+
+Follow the build instructions here: https://github.com/jawi/ols
+
+
+Older details on the OLS client is available at the project page:
+https://lxtreme.nl/projects/ols/
+
+Direct link to older releases of the OLS alternative client:
+http://www.lxtreme.nl/ols/
+
+The alternative client version is highly recommended.  You can tried the older
+release ols-0.9.7.2 but most likely need to build it yourself. Use "ols-0.9.7"
+or newer for built-in device profiles.
+
+To use this with the original or alternative SUMP clients,
+use these settings:
+```
+Sampling rate: 4MHz (or lower) (no 2MHz on ATmega168)
+Channel Groups: 0 (zero) only
+Recording Size:
+   ATmega168:  532 (or lower)
+   ATmega328:  1024 (or lower)
+   ATmega2560: 7168 (or lower)
+Noise Filter: doesn't matter
+RLE: disabled (unchecked)
+```
+
+Using the Logic Analyzer
+========================
+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.  Please provide a detailed bug report
+if you file an issue.
+
+Debugging
+=========
+
+You can uncomment the `#define DEBUG_MENU` line to add some diagnostic menu
+options for capturing or dumping the capture buffer.
+You can uncomment the `#define DEBUG` and `#define DEBUG_MENU` for a couple
+extra menu options and logging of the received commands.  The DEBUG option
+is generally only useful for development, while the DEBUG_MENU option is
+good for troubleshooting when the logic_analyzer sketch isn't working for you.
+Both are disabled by default to conserve RAM for improved stability.
+
+CLI compiling
+=============
+
+If you want to use the `arduino-cli` tool to compile this using the Makefile,
+you'll need to install the tool first following instructions here:
+https://arduino.github.io/arduino-cli/
+
+Once installed you can simple type `make` and you should get some simple help:
+```bash
+$ make
+---> run 'make build' to compile for Arduino Duemilanove
+---> run 'make upload' to upload to /dev/ttyUSB*
+```
+
+
+Other Notes
+===========================================================================
+```
+NOTE: Starting with v0.11 you can 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 too big for an ATmega168's flash. The code 
+      automatically skips the 2MHz code on ATmega168
+
+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.
+
+NOTE: If you are using the original SUMP client, then you will get a
+      "device not found" error.
+      You must DISABLE the Arduino auto reset feature to use this logic analyzer
+      code. There are various methods to do this, some boards have a jumper,
+      others require you to cut a trace.  You may also install a *precisely*
+      120 Ohm resistor between the reset & 5V piins.  Make sure it is really
+      120 Ohm or you may damage your board.  It is much easier to use the
+      alternative SUMP client referenced above.
+      [ This is not needed with ols-0.9.7 or newer. ]
+      [ DO NOT use this resistor unless absolutely necessary on old clients. ]
+```

examples/logic_analyzer/logic_analyzer.ino

@@ -2,7 +2,7 @@
  *
  * SUMP Protocol Implementation for Arduino boards.
  *
- * Copyright (c) 2011,2012,2013 Andrew Gillham
+ * Copyright (c) 2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023 Andrew Gillham
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,26 +44,10 @@
  * Pins 22-29 (Port A) are used by default, you can change the 'CHANPIN' below
  * if something else works better for you.
  *
- * NOTE:
- * If you are using the original SUMP client, or using the alternative client
- * without the device profiles, then you will get a "device not found" error.
- * You must DISABLE the Arduino auto reset feature to use this logic analyzer
- * code. There are various methods to do this, some boards have a jumper,
- * others require you to cut a trace.  You may also install a *precisely*
- * 120 Ohm resistor between the reset & 5V piins.  Make sure it is really
- * 120 Ohm or you may damage your board.
- * It is much easier to use the alternative SUMP client from here:
- *      http://www.lxtreme.nl/ols/
- *
- * The device profiles should be included with this code.  Copy them to the
- * 'plugins' directory of the client.  The location varies depending on the
- * platform, but on the mac it is here by default:
- * /Applications/LogicSniffer.app/Contents/Resources/Java/plugins
- *
  * To use this with the original or alternative SUMP clients,
  * use these settings:
- * 
+ *
- * Sampling rate: 4MHz (or lower)
+ * Sampling rate: 4MHz (or lower) (no 2MHz on ATmega168)
  * Channel Groups: 0 (zero) only
  * Recording Size:
  *    ATmega168:  532 (or lower)
@@ -78,7 +62,7 @@
  * until after the trigger fires.
  * Please try it out and report back.
  *
- * Release: v0.12 September 6, 2013.
+ * Release: v0.17 October 5, 2023.
  *
  */
 
@@ -97,7 +81,9 @@ void blinkled(void);
 void get_metadata(void);
 void debugprint(void);
 void debugdump(void);
-
+void prettydump(void);
+void captureInline4mhz(void);
+void captureInline2mhz(void);
 
 /*
  * Should we use PORTD or PORTB?  (default is PORTB)
@@ -170,6 +156,9 @@ void debugdump(void);
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
 #define DEBUG_CAPTURE_SIZE 7168
 #define CAPTURE_SIZE 7168
+#elif defined(__AVR_ATmega32U4__)
+#define DEBUG_CAPTURE_SIZE 2048
+#define CAPTURE_SIZE 2048
 #elif defined(__AVR_ATmega328P__)
 #define DEBUG_CAPTURE_SIZE 1024
 #define CAPTURE_SIZE 1024
@@ -186,8 +175,11 @@ void debugdump(void);
 #define DEBUG_ENABLE DDRD = DDRD | B10000000
 #define DEBUG_ON PORTD = B10000000
 #define DEBUG_OFF PORTD = B00000000
-#endif
+#endif /* USE_PORTD */
-#define DEBUG
+
+//#define DEBUG_MENU
+//#define DEBUG
+
 #ifdef DEBUG
 #define MAX_CAPTURE_SIZE DEBUG_CAPTURE_SIZE
 #else
@@ -279,10 +271,10 @@ void loop()
 
   if (Serial.available() > 0) {
     cmdByte = Serial.read();
-    switch(cmdByte) {
+    switch (cmdByte) {
     case SUMP_RESET:
       /*
-       * We don't do anything here as some unsupported extended commands have
+         * We don't do anything here as some unsupported extended commands have
        * zero bytes and are mistaken as resets.  This can trigger false resets
        * so we don't erase the data or do anything for a reset.
        */
@@ -296,14 +288,14 @@ void loop()
       break;
     case SUMP_ARM:
       /*
-       * Zero out any previous samples before arming.
+         * Zero out any previous samples before arming.
        * Done here instead via reset due to spurious resets.
        */
       for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
         logicdata[i] = 0;
       }
       /*
-       * depending on the sample rate we need to delay in microseconds
+         * depending on the sample rate we need to delay in microseconds
        * or milliseconds.  We can't do the complex trigger at 1MHz
        * so in that case (delayTime == 1 and triggers enabled) use
        * captureMicro() instead of triggerMicro().
@@ -312,26 +304,28 @@ void loop()
       if (divider == 24) {
         /* 4.0MHz */
         captureInline4mhz();
-      } 
+      }
       else if (divider == 49) {
         /* 2.0MHz */
+#if !defined(__AVR_ATmega168__)
         captureInline2mhz();
-      } 
+#endif
+      }
       else if (useMicro) {
         if (trigger && (delayTime != 1)) {
           triggerMicro();
-        } 
+        }
         else {
           captureMicro();
         }
-      } 
+      }
       else {
         captureMilli();
       }
       break;
     case SUMP_TRIGGER_MASK:
       /*
-       * the trigger mask byte has a '1' for each enabled trigger so
+         * the trigger mask byte has a '1' for each enabled trigger so
        * we can just use it directly as our trigger mask.
        */
       getCmd();
@@ -343,7 +337,7 @@ void loop()
       break;
     case SUMP_TRIGGER_VALUES:
       /*
-       * trigger_values can be used directly as the value of each bit
+         * trigger_values can be used directly as the value of each bit
        * defines whether we're looking for it to be high or low.
        */
       getCmd();
@@ -359,7 +353,7 @@ void loop()
       break;
     case SUMP_SET_DIVIDER:
       /*
-       * the shifting needs to be done on the 32bit unsigned long variable
+         * the shifting needs to be done on the 32bit unsigned long variable
        * so that << 16 doesn't end up as zero.
        */
       getCmd();
@@ -372,7 +366,7 @@ void loop()
       break;
     case SUMP_SET_READ_DELAY_COUNT:
       /*
-       * this just sets up how many samples there should be before
+         * this just sets up how many samples there should be before
        * and after the trigger fires.  The readCount is total samples
        * to return and delayCount number of samples after the trigger.
        * this sets the buffer splits like 0/100, 25/75, 50/50
@@ -396,7 +390,7 @@ void loop()
       break;
     case SUMP_GET_METADATA:
       /*
-       * We return a description of our capabilities.
+         * We return a description of our capabilities.
        * Check the function's comments below.
        */
       get_metadata();
@@ -404,37 +398,85 @@ void loop()
     case SUMP_SELF_TEST:
       /* ignored. */
       break;
-#ifdef DEBUG
+#ifdef DEBUG_MENU
       /*
-       * a couple of debug commands used during development.
+         * a couple of debug commands used during development.
        */
+    case '?':
+      Serial.println("");
+#ifdef DEBUG
+      Serial.println("0 = clear cmd buffer");
+      Serial.println("1 = print cmd buffer");
+#endif /* DEBUG */
+      Serial.println("2 = print data buffer");
+      Serial.println("3 = pretty print buffer");
+      Serial.println("4 = capture at 4MHz");
+      Serial.println("5 = capture at 1MHz");
+      Serial.println("6 = capture at 500KHz");
+      break;
+#ifdef DEBUG
     case '0':
       /*
-       * This resets the debug buffer pointer, effectively clearing the
+         * This resets the debug buffer pointer, effectively clearing the
        * previous commands out of the buffer. Clear the sample data as well.
        * Just send a '0' from the Arduino IDE's Serial Monitor.
        */
-      savecount=0;
+      savecount = 0;
       for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
         logicdata[i] = 0;
       }
       break;
     case '1':
       /*
-       * This is used to see what commands were sent to the device.
+         * This is used to see what commands were sent to the device.
        * you can use the Arduino serial monitor and send a '1' and get
        * a debug printout.  useless except for development.
        */
       blinkled();
       debugprint();
       break;
+#endif /* DEBUG */
     case '2':
       /*
-       * This dumps the sample data to the serial port.  Used for debugging.
+         * This dumps the sample data to the serial port.
        */
       debugdump();
       break;
-#endif /* DEBUG */
+    case '3':
+      /*
+         * Prints a visual representation of the data buffer.
+       */
+      prettydump();
+      break;
+    case '4':
+      /*
+         * This runs a sample capture at 4MHz.
+       */
+      captureInline4mhz();
+      Serial.println("");
+      Serial.println("4MHz capture done.");
+      break;
+    case '5':
+      /*
+         * This runs a sample capture at 1MHz.
+       * delayTime = 1ms for 1MHz sampling.
+       */
+      delayTime = 1;
+      captureMicro();
+      Serial.println("");
+      Serial.println("1MHz capture done.");
+      break;
+    case '6':
+      /*
+         * This runs a sample capture at 500KHz.
+       * delayTime = 2ms for 500KHz.
+       */
+      delayTime = 2;
+      captureMicro();
+      Serial.println("");
+      Serial.println("500KHz capture done.");
+      break;
+#endif /* DEBUG_MENU */
     default:
       /* ignore any unrecognized bytes. */
       break;
@@ -539,7 +581,7 @@ void captureMicro() {
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
     }
     DEBUG_OFF; /* debug timing measurement */
-  } 
+  }
   else if (delayTime == 2) {
     /*
      * 500KHz sample rate = 2 uS delay, still pretty fast so we pad this
@@ -556,7 +598,7 @@ void captureMicro() {
       __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
     }
     DEBUG_OFF; /* debug timing measurement */
-  } 
+  }
   else {
     /*
      * not 1MHz or 500KHz; delayMicroseconds(delay - 1) works fine here
@@ -609,7 +651,7 @@ void captureMicro() {
 void captureMilli() {
   unsigned int i = 0;
 
-  if(rleEnabled) {
+  if (rleEnabled) {
     /*
      * very basic trigger, just like in captureMicros() above.
      */
@@ -620,16 +662,16 @@ void captureMilli() {
     byte lastSample = 0;
     byte sampleCount = 0;
 
-    while(i < readCount) {
+    while (i < readCount) {
       /*
        * Implementation of the RLE unlimited protocol: timings might be off a little
        */
-      if(lastSample == (CHANPIN & B01111111) && sampleCount < 127) {
+      if (lastSample == (CHANPIN & B01111111) && sampleCount < 127) {
         sampleCount++;
         delay(delayTime);
         continue;
       }
-      if(sampleCount != 0) {
+      if (sampleCount != 0) {
         logicdata[i] = B10000000 | sampleCount;
         sampleCount = 0;
         i++;
@@ -641,7 +683,7 @@ void captureMilli() {
 
       i++;
     }
-  } 
+  }
   else {
     /*
      * very basic trigger, just like in captureMicros() above.
@@ -670,7 +712,7 @@ void captureMilli() {
  * This works ok at 500KHz and lower sample rates.  We don't have enough time
  * with a 16MHz clock to sample at 1MHz into the circular buffer.  A 20MHz
  * clock might be ok but all of the timings would have to be redone.
- * 
+ *
  */
 void triggerMicro() {
   unsigned int i = 0;
@@ -717,7 +759,7 @@ void triggerMicro() {
      * click stop.
      */
     return;
-  } 
+  }
   else if (delayTime == 2) {
     /*
      * 500KHz case.  We should be able to manage this in time.
@@ -746,7 +788,7 @@ void triggerMicro() {
     __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
     DEBUG_OFF; /* debug timing measurement */
 
-    /* 
+    /*
      * One sample size delay. ends up being 2 uS combined with assignment
      * below.  This padding is so we have a consistent timing interval
      * between the trigger point and the subsequent samples.
@@ -776,7 +818,7 @@ void triggerMicro() {
     }
     DEBUG_OFF; /* debug timing measurement */
     delayMicroseconds(100);
-  } 
+  }
   else {
     /*
      * Less than 500KHz case.  This uses delayMicroseconds() and some padding
@@ -876,7 +918,7 @@ void setupDelay() {
   if (divider >= 1500000) {
     useMicro = 0;
     delayTime = (divider + 1) / 100000;
-  } 
+  }
   else {
     useMicro = 1;
     delayTime = (divider + 1) / 100;
@@ -907,7 +949,7 @@ void get_metadata() {
   Serial.write('0');
   Serial.write('.');
   Serial.write('1');
-  Serial.write('2');
+  Serial.write('7');
   Serial.write((uint8_t)0x00);
 
   /* sample memory */
@@ -952,11 +994,11 @@ void get_metadata() {
   Serial.write((uint8_t)0x02);
 
   /* end of data */
-  Serial.write((uint8_t)0x00);  
+  Serial.write((uint8_t)0x00);
 }
 
 /*
- * This is used by the '0' debug command to dump the contents of some
+ * This is used by the '1' debug command to dump the contents of some
  * interesting variables and the debug buffer.
  *
  */
@@ -988,7 +1030,7 @@ void debugprint() {
   for (i = 0 ; i < savecount; i++) {
     if (savebytes[i] == 0x20) {
       Serial.println();
-    } 
+    }
     else {
       Serial.print(savebytes[i], HEX);
       Serial.write(' ');
@@ -997,6 +1039,8 @@ void debugprint() {
   Serial.println("done...");
 }
 
+#endif /* DEBUG */
+#ifdef DEBUG_MENU
 /*
  * This is used by the '2' debug command to dump the contents
  * of the sample buffer.
@@ -1021,7 +1065,37 @@ void debugdump() {
     j++;
   }
 }
-#endif /* DEBUG */
+
+/*
+ * This is used by the '3' debugs command to dump the first 64 bytes
+ * of the sample buffer.
+ * It prints the data in a graphical representation.
+ */
+void prettydump() {
+  int i;
+  byte j;
+  byte k;
+
+  Serial.print("\r\n");
+
+  for (i = 0 ; i < 64; i++) {
+#ifdef USE_PORTD
+    k = logicdata[i] >> 2;
+#else
+    k = logicdata[i];
+#endif
+    for (j = 0; j < 8; j++) {
+      if (k & 0x01)
+        Serial.print("| ");
+      else
+        Serial.print(" |");
+      k = k >> 1;
+    }
+    Serial.print("\r\n");
+  }
+}
+#endif /* DEBUG_MENU */
+
 
 
 

examples/logic_analyzer/logic_analyzer_inline_2mhz.ino

@@ -2,7 +2,7 @@
  *
  * SUMP Protocol Implementation for Arduino boards.
  *
- * Copyright (c) 2011,2012,2013 Andrew Gillham
+ * Copyright (c) 2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023 Andrew Gillham
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

examples/logic_analyzer/logic_analyzer_inline_4mhz.ino

@@ -2,7 +2,7 @@
  *
  * SUMP Protocol Implementation for Arduino boards.
  *
- * Copyright (c) 2011,2012,2013 Andrew Gillham
+ * Copyright (c) 2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023 Andrew Gillham
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

examples/logic_analyzer_leonardo/Makefile

@@ -0,0 +1,24 @@
+#
+# Makefile for an Arduino based logic analyzer using the arduino-cli
+#
+
+TARGET	= logic_analyzer_leonardo
+FQBN	= arduino:avr:leonardo
+SERIAL	= /dev/ttyUSB*
+
+
+all:
+	@echo ""
+	@echo "---> run 'make build' to compile for Arduino Leonardo"
+	@echo "---> run 'make upload' to upload to /dev/ttyUSB*"
+	@echo ""
+
+build:
+	arduino-cli compile --fqbn $(FQBN) $(TARGET)
+
+upload:
+	arduino-cli upload --fqbn $(FQBN) --port $(SERIAL) $(TARGET)
+
+#
+# end-of-file
+#

library.properties

@@ -0,0 +1,9 @@
+name=LogicAnalyzer
+version=0.17.0
+author=Andrew Gillham <gillham@roadsign.com>
+maintainer=Andrew Gillham <gillham@roadsign.com>
+sentence=A SUMP protocol compatible logic analyzer firmware
+paragraph=These firmware sketches provide a 6 channel logic analyzer for use with the SUMP protocol based OLS clients. There is also a Sigrok compatible firmware using the OpenBench Logic Sniffer (ols) driver .
+category=Signal Input/Output
+url=https://github.com/gillham/logic_analyzer
+architectures=avr

src/use_examples_for_logic_analyzer.h

@@ -0,0 +1,2 @@
+// This is a placeholder. Use File->Examples->LogicAnalyzer menu
+// for the logic analyzer sketches.