12 Commits

Author SHA1 Message Date
Andrew Gillham
1b9c3e7314 Create an Ethernet shield version.
This alpha version can be connected to across the network using the OLS
client and an Ethernet shield.
2013-06-22 22:04:05 -07:00
Andrew Gillham
17d2a1a15f Bump metadata for version 0.09 2013-06-22 19:22:35 -07:00
Andrew Gillham
0a40fdb2ac Update comment to reflect that PORTD seems to work, but needs testing.
I'm still working on PORTD triggers.  I'm not yet satisfied they are
working 100% correctly.
2013-06-22 11:33:29 -07:00
Andrew Gillham
1f7eb0aecd Add missing shift for PORTD trigger. 2013-06-22 11:30:39 -07:00
Andrew Gillham
dc3d85abf7 Revert to PORTB (Arduino pins 8-13) and make PORTD a configuration option.
Triggers are more reliable on PORTB.  I am working on fixing triggers
on PORTD, but I'm setting this back to original behavior (with a
#define USE_PORTD available) so this isn't broken for triggering.
2013-06-22 11:17:06 -07:00
Andrew Gillham
240ebc134c Update to v0.08 and add note about channels changes. 2013-02-08 17:06:23 -08:00
Andrew Gillham
396a3ccfa5 Switch to 6 channels on PORTD.
Switch from PORTB to PORTD so that a full 6 channels can be used
without messing with the LED.  Per suggestion in issue #7.  I was
unable to find any issues with using PORTB.  During initial development
I ran into some noise & stability issues but I believe those were
solved later via allowing the ports to settle prior to beginning
sampling.
This allows for 6 channels, starting with digital pin 2 (next to the
UART TX pin) and ending at digital pin 7.
The debug pin is now digital pin 8.
2013-02-08 17:02:18 -08:00
Andrew Gillham
864ae2c826 Implement RLE mode for 50Hz or lower sample rates. (via hhermsen in issue #9)
Support RLE mode for samples rates of 50Hz or less.  Code from hhermsen
in issue #9.
This is a work in progress.  Hopefully RLE can be added for higher
sample rates in the future.
2013-02-08 14:31:05 -08:00
Andrew Gillham
445dac179c Update copyright year. 2013-02-08 13:16:39 -08:00
Andrew Gillham
0f81002bde Update firmware version to v0.07 in metadata. 2013-02-08 12:43:28 -08:00
Andrew Gillham
fb3aca55a0 Bump to v0.07 2013-02-08 12:42:29 -08:00
Andrew Gillham
851b7e0735 Add firmware version to metadata
Return the firmware version to the Logic Sniffer extended SUMP protocol
metadata request.  Now you can see what version is loaded on your
device.
2013-02-08 12:41:26 -08:00
3 changed files with 408 additions and 260 deletions

5
README
View File

@@ -1,6 +1,9 @@
SUMP compatible logic analyzer for Arduino SUMP compatible logic analyzer for Arduino
========================================== ==========================================
NOTE: NOTE: v0.09 switches 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 This Arduino sketch implements a SUMP protocol compatible with the standard
SUMP client as well as the alternative client from here: SUMP client as well as the alternative client from here:
http://www.lxtreme.nl/ols/ http://www.lxtreme.nl/ols/
@@ -51,5 +54,5 @@ Please try it out and report back.
This master branch now supports Arduino 1.0 only. This master branch now supports Arduino 1.0 only.
Checkout branch logic_analyzer_v0_5 for Arduino 22 support. Checkout branch logic_analyzer_v0_5 for Arduino 22 support.
Release: v0.06 November 4, 2011. Release: v0.09 June 22, 2013.

View File

@@ -2,7 +2,7 @@
* *
* SUMP Protocol Implementation for Arduino boards. * SUMP Protocol Implementation for Arduino boards.
* *
* Copyright (c) 2011 Andrew Gillham * Copyright (c) 2011,2012,2013 Andrew Gillham
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@@ -25,21 +25,30 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* *
* $Id: logic_analyzer.ino,v 1.21 2012/02/27 20:19:44 gillham Exp $
* *
*/ */
/* /*
* NOTE: This is an ALPHA of support for an Ethernet attached Logic Analyzer.
* Tested with an Arduino Duemilanove and W5100 based Ethernet shield.
* It may work with other combinations, but I haven't tested it.
*
* USE: Configure the mac address (if you want) and the ip address (mandatory)
* for your network and upload it. In the OLS client select network
* instead of serial and use your ip address and port 1234.
* Click capture! You should get some data back from your Arduino.
*
*
* NOTE: v0.09 switches 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 * This Arduino sketch implements a SUMP protocol compatible with the standard
* SUMP client as well as the alternative client from here: * SUMP client as well as the alternative client from here:
* http://www.lxtreme.nl/ols/ * http://www.lxtreme.nl/ols/
* *
* This SUMP protocol compatible logic analyzer for the Arduino board supports * 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) * 6 channels consisting of digital pins 2-7, which are the last 6 bits (2-7)
* of PORTB. Arduino pin 13 / bit 5 is the Arduino LED, bits 6 & 7 are the * of PORTD. Bits 0 & 1 are the UART RX/TX pins.
* 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. * 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 * Pins 22-29 (Port A) are used by default, you can change the 'CHANPIN' below
@@ -72,16 +81,19 @@
* ATmega2560: 7168 (or lower) * ATmega2560: 7168 (or lower)
* Noise Filter: doesn't matter * Noise Filter: doesn't matter
* RLE: disabled (unchecked) * 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 * 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 * below 1MHz. 1MHz works for a basic busy wait trigger that doesn't store
* until after the trigger fires. * until after the trigger fires.
* Please try it out and report back. * Please try it out and report back.
* *
* Release: v0.06 November 4, 2011. * Release: v0.09 June 22, 2013.
* *
*/ */
#include <SPI.h>
#include <Ethernet.h>
/* /*
* Function prototypes so this can compile from the cli. * Function prototypes so this can compile from the cli.
* You'll need the 'arduino-core' package and to check the paths in the * You'll need the 'arduino-core' package and to check the paths in the
@@ -99,9 +111,12 @@ void debugprint(void);
void debugdump(void); void debugdump(void);
/* /*
* Uncomment CHAN5 to use it as an additional input on a normal Arduino. * Should we use PORTD or PORTB? (default is PORTB)
* You'll need to change the number of channels in the device profile as well. * PORTD support with triggers seems to work but needs more testing.
* */
#define USE_PORTD 1
/*
* Arduino device profile: ols.profile-agla.cfg * Arduino device profile: ols.profile-agla.cfg
* Arduino Mega device profile: ols.profile-aglam.cfg * Arduino Mega device profile: ols.profile-aglam.cfg
*/ */
@@ -116,13 +131,24 @@ void debugdump(void);
#define CHAN6 28 #define CHAN6 28
#define CHAN7 29 #define CHAN7 29
#else #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
#else
#define CHANPIN PINB #define CHANPIN PINB
#define CHAN0 8 #define CHAN0 8
#define CHAN1 9 #define CHAN1 9
#define CHAN2 10 #define CHAN2 10
#define CHAN3 11 #define CHAN3 11
#define CHAN4 12 #define CHAN4 12
//#define CHAN5 13 /* Comment out CHAN5 if you don't want to use the LED pin for an input */
#define CHAN5 13
#endif /* USE_PORTD */
#endif #endif
#define ledPin 13 #define ledPin 13
@@ -138,10 +164,11 @@ void debugdump(void);
#define SUMP_TRIGGER_VALUES 0xC1 #define SUMP_TRIGGER_VALUES 0xC1
#define SUMP_TRIGGER_CONFIG 0xC2 #define SUMP_TRIGGER_CONFIG 0xC2
/* flags are ignored. */ /* Most flags (except RLE) are ignored. */
#define SUMP_SET_DIVIDER 0x80 #define SUMP_SET_DIVIDER 0x80
#define SUMP_SET_READ_DELAY_COUNT 0x81 #define SUMP_SET_READ_DELAY_COUNT 0x81
#define SUMP_SET_FLAGS 0x82 #define SUMP_SET_FLAGS 0x82
#define SUMP_SET_RLE 0x0100
/* extended commands -- self-test unsupported, but metadata is returned. */ /* extended commands -- self-test unsupported, but metadata is returned. */
#define SUMP_SELF_TEST 0x03 #define SUMP_SELF_TEST 0x03
@@ -162,6 +189,15 @@ void debugdump(void);
#define CAPTURE_SIZE 532 #define CAPTURE_SIZE 532
#endif #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 #define DEBUG
#ifdef DEBUG #ifdef DEBUG
#define MAX_CAPTURE_SIZE DEBUG_CAPTURE_SIZE #define MAX_CAPTURE_SIZE DEBUG_CAPTURE_SIZE
@@ -191,35 +227,63 @@ unsigned int trigger_values = 0;
unsigned int useMicro = 0; unsigned int useMicro = 0;
unsigned int delayTime = 0; unsigned int delayTime = 0;
unsigned long divider = 0; unsigned long divider = 0;
boolean rleEnabled = 0;
/*
* Enter a MAC address and IP address for your Arduino.
*/
byte mac[] = {
0x40, 0x00, 0x01, 0x02, 0x03, 0x04 };
IPAddress ip(192,168,1,200);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(1234);
EthernetClient client;
void setup() void setup()
{ {
Serial.begin(115200); Serial.begin(115200);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
/* /*
* set debug pin to output right away so it settles. * set debug pin (digital pin 8) to output right away so it settles.
* this gets toggled during sampling as a way to measure * this gets toggled during sampling as a way to measure
* the sample time. this is used during development to * the sample time. this is used during development to
* properly pad out the sampling routines. * properly pad out the sampling routines.
*/ */
DDRD = DDRD | B10000000; /* debug measurement pin */ DEBUG_ENABLE; /* debug measurement pin */
pinMode(CHAN0, INPUT); pinMode(CHAN0, INPUT);
digitalWrite(CHAN0, LOW);
pinMode(CHAN1, INPUT); pinMode(CHAN1, INPUT);
digitalWrite(CHAN1, LOW);
pinMode(CHAN2, INPUT); pinMode(CHAN2, INPUT);
digitalWrite(CHAN2, LOW);
pinMode(CHAN3, INPUT); pinMode(CHAN3, INPUT);
digitalWrite(CHAN3, LOW);
pinMode(CHAN4, INPUT); pinMode(CHAN4, INPUT);
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) digitalWrite(CHAN4, LOW);
pinMode(CHAN5, INPUT);
pinMode(CHAN6, INPUT);
pinMode(CHAN7, INPUT);
pinMode(ledPin, OUTPUT);
#else
#ifdef CHAN5 #ifdef CHAN5
pinMode(CHAN5, INPUT); pinMode(CHAN5, INPUT);
digitalWrite(CHAN5, LOW);
#endif
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
pinMode(CHAN6, INPUT);
digitalWrite(CHAN6, LOW);
pinMode(CHAN7, INPUT);
digitalWrite(CHAN7, LOW);
#else #else
#ifndef CHAN5
pinMode(ledPin, OUTPUT); pinMode(ledPin, OUTPUT);
#endif /* CHAN5 */ #endif
#endif /* Mega */ #endif /* Mega */
} }
@@ -227,153 +291,170 @@ void loop()
{ {
int i; int i;
if (Serial.available() > 0) { // listen for incoming clients
cmdByte = Serial.read(); client = server.available();
switch(cmdByte) { if (client) {
case SUMP_RESET: Serial.println("new client");
/* while (client.connected()) {
if (client.available()) {
cmdByte = client.read();
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 * 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. * so we don't erase the data or do anything for a reset.
*/ */
break; break;
case SUMP_QUERY: case SUMP_QUERY:
/* return the expected bytes. */ /* return the expected bytes. */
Serial.write('1'); client.write('1');
Serial.write('A'); client.write('A');
Serial.write('L'); client.write('L');
Serial.write('S'); client.write('S');
break; break;
case SUMP_ARM: 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. * Done here instead via reset due to spurious resets.
*/ */
for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) { for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
logicdata[i] = 0; 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 * or milliseconds. We can't do the complex trigger at 1MHz
* so in that case (delayTime == 1 and triggers enabled) use * so in that case (delayTime == 1 and triggers enabled) use
* captureMicro() instead of triggerMicro(). * captureMicro() instead of triggerMicro().
*/ */
if (useMicro) { if (useMicro) {
if (trigger && (delayTime != 1)) { if (trigger && (delayTime != 1)) {
triggerMicro(); triggerMicro();
} }
else { else {
captureMicro(); captureMicro();
} }
} }
else { else {
captureMilli(); captureMilli();
} }
break; break;
case SUMP_TRIGGER_MASK: 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. * we can just use it directly as our trigger mask.
*/ */
getCmd(); getCmd();
trigger = cmdBytes[0]; #ifdef USE_PORTD
break; trigger = cmdBytes[0] << 2;
case SUMP_TRIGGER_VALUES: #else
/* trigger = cmdBytes[0];
#endif
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. * defines whether we're looking for it to be high or low.
*/ */
getCmd(); getCmd();
trigger_values = cmdBytes[0]; #ifdef USE_PORTD
break; trigger_values = cmdBytes[0] << 2;
case SUMP_TRIGGER_CONFIG: #else
/* read the rest of the command bytes, but ignore them. */ trigger_values = cmdBytes[0];
getCmd(); #endif
break; break;
case SUMP_SET_DIVIDER: case SUMP_TRIGGER_CONFIG:
/* /* read the rest of the command bytes, but ignore them. */
getCmd();
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. * so that << 16 doesn't end up as zero.
*/ */
getCmd(); getCmd();
divider = cmdBytes[2]; divider = cmdBytes[2];
divider = divider << 8; divider = divider << 8;
divider += cmdBytes[1]; divider += cmdBytes[1];
divider = divider << 8; divider = divider << 8;
divider += cmdBytes[0]; divider += cmdBytes[0];
setupDelay(); setupDelay();
break; break;
case SUMP_SET_READ_DELAY_COUNT: 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 * and after the trigger fires. The readCount is total samples
* to return and delayCount number of samples after the trigger. * to return and delayCount number of samples after the trigger.
* this sets the buffer splits like 0/100, 25/75, 50/50 * this sets the buffer splits like 0/100, 25/75, 50/50
* for example if readCount == delayCount then we should * for example if readCount == delayCount then we should
* return all samples starting from the trigger point. * return all samples starting from the trigger point.
* if delayCount < readCount we return (readCount - delayCount) of * if delayCount < readCount we return (readCount - delayCount) of
* samples from before the trigger fired. * samples from before the trigger fired.
*/ */
getCmd(); getCmd();
readCount = 4 * (((cmdBytes[1] << 8) | cmdBytes[0]) + 1); readCount = 4 * (((cmdBytes[1] << 8) | cmdBytes[0]) + 1);
if (readCount > MAX_CAPTURE_SIZE) if (readCount > MAX_CAPTURE_SIZE)
readCount = MAX_CAPTURE_SIZE; readCount = MAX_CAPTURE_SIZE;
delayCount = 4 * (((cmdBytes[3] << 8) | cmdBytes[2]) + 1); delayCount = 4 * (((cmdBytes[3] << 8) | cmdBytes[2]) + 1);
if (delayCount > MAX_CAPTURE_SIZE) if (delayCount > MAX_CAPTURE_SIZE)
delayCount = MAX_CAPTURE_SIZE; delayCount = MAX_CAPTURE_SIZE;
break; break;
case SUMP_SET_FLAGS: case SUMP_SET_FLAGS:
/* read the rest of the command bytes, but ignore them. */ /* read the rest of the command bytes and check if RLE is enabled. */
getCmd(); getCmd();
break; rleEnabled = ((cmdBytes[1] & B1000000) != 0);
case SUMP_GET_METADATA: 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. * Check the function's comments below.
*/ */
get_metadata(); get_metadata();
break; break;
case SUMP_SELF_TEST: case SUMP_SELF_TEST:
/* ignored. */ /* ignored. */
break; break;
#ifdef DEBUG #ifdef DEBUG
/* /*
* a couple of debug commands used during development. * a couple of debug commands used during development.
*/ */
case '0': 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. * previous commands out of the buffer. Clear the sample data as well.
* Just send a '0' from the Arduino IDE's Serial Monitor. * Just send a '0' from the Arduino IDE's Serial Monitor.
*/ */
savecount=0; savecount=0;
for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) { for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
logicdata[i] = 0; logicdata[i] = 0;
} }
break; break;
case '1': 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 * you can use the Arduino serial monitor and send a '1' and get
* a debug printout. useless except for development. * a debug printout. useless except for development.
*/ */
#ifndef CHAN5 blinkled();
blinkled(); debugprint();
#endif /* !CHAN5 */ break;
debugprint(); case '2':
break; /*
case '2':
/*
* This dumps the sample data to the serial port. Used for debugging. * This dumps the sample data to the serial port. Used for debugging.
*/ */
debugdump(); debugdump();
break; break;
#endif /* DEBUG */ #endif /* DEBUG */
default: default:
/* ignore any unrecognized bytes. */ /* ignore any unrecognized bytes. */
break; break;
} } /* switch */
} } /* if client.available() */
} /* while */
delay(1);
client.stop();
Serial.println("client disconnected?");
} /* if client */
} }
void blinkled() { void blinkled() {
@@ -392,10 +473,10 @@ void blinkled() {
*/ */
void getCmd() { void getCmd() {
delay(10); delay(10);
cmdBytes[0] = Serial.read(); cmdBytes[0] = client.read();
cmdBytes[1] = Serial.read(); cmdBytes[1] = client.read();
cmdBytes[2] = Serial.read(); cmdBytes[2] = client.read();
cmdBytes[3] = Serial.read(); cmdBytes[3] = client.read();
#ifdef DEBUG #ifdef DEBUG
if (savecount < 120 ) { if (savecount < 120 ) {
@@ -428,7 +509,7 @@ void captureMicro() {
int i; int i;
/* /*
* basic trigger, wait until all trigger conditions are met on port B. * basic trigger, wait until all trigger conditions are met on port.
* this needs further testing, but basic tests work as expected. * this needs further testing, but basic tests work as expected.
*/ */
if (trigger) { if (trigger) {
@@ -447,16 +528,16 @@ void captureMicro() {
* this is used during development to measure the sample intervals. * 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 * it is best to just leave the toggling in place so we don't alter
* any timing unexpectedly. * any timing unexpectedly.
* Arduino pin 7 is being used here. * Arduino digital pin 8 is being used here.
*/ */
DDRD = DDRD | B10000000; DEBUG_ENABLE;
PORTD = B10000000; DEBUG_ON;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B00000000; DEBUG_OFF;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B10000000; DEBUG_ON;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B00000000; DEBUG_OFF;
delayMicroseconds(20); delayMicroseconds(20);
if (delayTime == 1) { if (delayTime == 1) {
@@ -464,20 +545,20 @@ void captureMicro() {
* 1MHz sample rate = 1 uS delay so we can't use delayMicroseconds * 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. * since our loop takes some time. The delay is padded out by hand.
*/ */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
for (i = 0 ; i < readCount; i++) { for (i = 0 ; i < readCount; i++) {
logicdata[i] = CHANPIN; logicdata[i] = CHANPIN;
__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"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
} }
else if (delayTime == 2) { else if (delayTime == 2) {
/* /*
* 500KHz sample rate = 2 uS delay, still pretty fast so we pad this * 500KHz sample rate = 2 uS delay, still pretty fast so we pad this
* one by hand too. * one by hand too.
*/ */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
for (i = 0 ; i < readCount; i++) { for (i = 0 ; i < readCount; i++) {
logicdata[i] = CHANPIN; logicdata[i] = CHANPIN;
__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");
@@ -487,7 +568,7 @@ void captureMicro() {
__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"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
} }
else { else {
/* /*
@@ -496,13 +577,13 @@ void captureMicro() {
* a better logic analyzer) * a better logic analyzer)
* start of real measurement * start of real measurement
*/ */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
for (i = 0 ; i < readCount; i++) { for (i = 0 ; i < readCount; i++) {
logicdata[i] = CHANPIN; logicdata[i] = CHANPIN;
delayMicroseconds(delayTime - 1); delayMicroseconds(delayTime - 1);
__asm__("nop\n\t""nop\n\t"); __asm__("nop\n\t""nop\n\t");
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
} }
/* re-enable interrupts now that we're done sampling. */ /* re-enable interrupts now that we're done sampling. */
@@ -513,7 +594,11 @@ void captureMicro() {
* is done for any triggers, this is effectively the 0/100 buffer split. * is done for any triggers, this is effectively the 0/100 buffer split.
*/ */
for (i = 0 ; i < readCount; i++) { for (i = 0 ; i < readCount; i++) {
Serial.write(logicdata[i]); #ifdef USE_PORTD
client.write(logicdata[i] >> 2);
#else
client.write(logicdata[i]);
#endif
} }
} }
@@ -535,21 +620,60 @@ void captureMicro() {
* this basic functionality. * this basic functionality.
*/ */
void captureMilli() { void captureMilli() {
int i; int i = 0;
/* if(rleEnabled) {
* very basic trigger, just like in captureMicros() above. /*
*/ * very basic trigger, just like in captureMicros() above.
if (trigger) { */
while ((trigger_values ^ CHANPIN) & trigger); if (trigger) {
} while ((trigger_values ^ (CHANPIN & B01111111)) & trigger);
}
for (i = 0 ; i < readCount; i++) { byte lastSample = 0;
logicdata[i] = CHANPIN; byte sampleCount = 0;
delay(delayTime);
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++) { for (i = 0 ; i < readCount; i++) {
Serial.write(logicdata[i]); #ifdef USE_PORTD
client.write(logicdata[i] >> 2);
#else
client.write(logicdata[i]);
#endif
} }
} }
@@ -579,16 +703,16 @@ void triggerMicro() {
* this is used during development to measure the sample intervals. * 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 * it is best to just leave the toggling in place so we don't alter
* any timing unexpectedly. * any timing unexpectedly.
* Arduino pin 7 is being used here. * Arduino digital pin 8 is being used here.
*/ */
DDRD = DDRD | B10000000; DEBUG_ENABLE;
PORTD = B10000000; DEBUG_ON;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B00000000; DEBUG_OFF;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B10000000; DEBUG_ON;
delayMicroseconds(20); delayMicroseconds(20);
PORTD = B00000000; DEBUG_OFF;
delayMicroseconds(20); delayMicroseconds(20);
if (delayTime == 1) { if (delayTime == 1) {
@@ -613,9 +737,9 @@ void triggerMicro() {
* we always start capturing at the start of the buffer * we always start capturing at the start of the buffer
* and use it as a circular buffer * and use it as a circular buffer
*/ */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) { while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) {
/* PORTD = B00000000; */ /* DEBUG_OFF; */
/* increment index. */ /* increment index. */
logicIndex++; logicIndex++;
if (logicIndex >= readCount) { if (logicIndex >= readCount) {
@@ -627,11 +751,11 @@ void triggerMicro() {
* __asm__("nop\n\t""nop\n\t""nop\n\t"); * __asm__("nop\n\t""nop\n\t""nop\n\t");
*/ */
__asm__("nop\n\t"); __asm__("nop\n\t");
/* PORTD = B10000000; */ /* DEBUG_ON; */
} }
/* this pads the immediate trigger case to 2.0 uS, just as an example. */ /* this pads the immediate trigger case to 2.0 uS, just as an example. */
__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");
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
/* /*
* One sample size delay. ends up being 2 uS combined with assignment * One sample size delay. ends up being 2 uS combined with assignment
@@ -646,7 +770,7 @@ void triggerMicro() {
triggerIndex = logicIndex; triggerIndex = logicIndex;
/* keep sampling for delayCount after trigger */ /* keep sampling for delayCount after trigger */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
/* /*
* this is currently taking: * this is currently taking:
* 1025.5 uS for 512 samples. (512 samples, 0/100 split) * 1025.5 uS for 512 samples. (512 samples, 0/100 split)
@@ -661,7 +785,7 @@ void triggerMicro() {
__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"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
delayMicroseconds(100); delayMicroseconds(100);
} }
else { else {
@@ -674,9 +798,9 @@ void triggerMicro() {
* and use it as a circular buffer * and use it as a circular buffer
* *
*/ */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) { while ((trigger_values ^ (logicdata[logicIndex] = CHANPIN)) & trigger) {
/* PORTD = B00000000; */ /* DEBUG_OFF; */
/* increment index. */ /* increment index. */
logicIndex++; logicIndex++;
if (logicIndex >= readCount) { if (logicIndex >= readCount) {
@@ -688,9 +812,9 @@ void triggerMicro() {
} }
delayMicroseconds(delayTime - 3); delayMicroseconds(delayTime - 3);
__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");
/* PORTD = B10000000; */ /* DEBUG_ON; */
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
/* 'logicIndex' now points to trigger sample, keep track of it */ /* 'logicIndex' now points to trigger sample, keep track of it */
triggerIndex = logicIndex; triggerIndex = logicIndex;
@@ -705,7 +829,7 @@ void triggerMicro() {
__asm__("nop\n\t""nop\n\t""nop\n\t"); __asm__("nop\n\t""nop\n\t""nop\n\t");
/* keep sampling for delayCount after trigger */ /* keep sampling for delayCount after trigger */
PORTD = B10000000; /* debug timing measurement */ DEBUG_ON; /* debug timing measurement */
for (i = 0 ; i < delayCount; i++) { for (i = 0 ; i < delayCount; i++) {
if (logicIndex >= readCount) { if (logicIndex >= readCount) {
logicIndex = 0; logicIndex = 0;
@@ -716,7 +840,7 @@ void triggerMicro() {
__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"); __asm__("nop\n\t""nop\n\t""nop\n\t");
} }
PORTD = B00000000; /* debug timing measurement */ DEBUG_OFF; /* debug timing measurement */
delayMicroseconds(100); delayMicroseconds(100);
} }
@@ -737,7 +861,11 @@ void triggerMicro() {
if (logicIndex >= readCount) { if (logicIndex >= readCount) {
logicIndex = 0; logicIndex = 0;
} }
Serial.write(logicdata[logicIndex++]); #ifdef USE_PORTD
client.write(logicdata[logicIndex++] >> 2);
#else
client.write(logicdata[logicIndex++]);
#endif
} }
} }
@@ -773,61 +901,69 @@ void setupDelay() {
*/ */
void get_metadata() { void get_metadata() {
/* device name */ /* device name */
Serial.write((uint8_t)0x01); client.write((uint8_t)0x01);
Serial.write('A'); client.write('A');
Serial.write('G'); client.write('G');
Serial.write('L'); client.write('L');
Serial.write('A'); client.write('A');
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
Serial.write('M'); client.write('M');
#endif /* Mega */ #endif /* Mega */
Serial.write('v'); client.write('v');
Serial.write('0'); client.write('0');
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
/* firmware version */
client.write((uint8_t)0x02);
client.write('0');
client.write('.');
client.write('0');
client.write('9');
client.write((uint8_t)0x00);
/* sample memory */ /* sample memory */
Serial.write((uint8_t)0x21); client.write((uint8_t)0x21);
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
/* 7168 bytes */ /* 7168 bytes */
Serial.write((uint8_t)0x1C); client.write((uint8_t)0x1C);
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
#elif defined(__AVR_ATmega328P__) #elif defined(__AVR_ATmega328P__)
/* 1024 bytes */ /* 1024 bytes */
Serial.write((uint8_t)0x04); client.write((uint8_t)0x04);
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
#else #else
/* 532 bytes */ /* 532 bytes */
Serial.write((uint8_t)0x02); client.write((uint8_t)0x02);
Serial.write((uint8_t)0x14); client.write((uint8_t)0x14);
#endif /* Mega */ #endif /* Mega */
/* sample rate (1MHz) */ /* sample rate (1MHz) */
Serial.write((uint8_t)0x23); client.write((uint8_t)0x23);
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
Serial.write((uint8_t)0x0F); client.write((uint8_t)0x0F);
Serial.write((uint8_t)0x42); client.write((uint8_t)0x42);
Serial.write((uint8_t)0x40); client.write((uint8_t)0x40);
/* number of probes (5 by default on Arduino, 8 on Mega) */ /* number of probes (6 by default on Arduino, 8 on Mega) */
Serial.write((uint8_t)0x40); client.write((uint8_t)0x40);
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
Serial.write((uint8_t)0x08); client.write((uint8_t)0x08);
#else #else
#ifdef CHAN5 #ifdef CHAN5
Serial.write((uint8_t)0x06); client.write((uint8_t)0x06);
#else #else
Serial.write((uint8_t)0x05); client.write((uint8_t)0x05);
#endif /* CHAN5 */ #endif /* CHAN5 */
#endif /* Mega */ #endif /* Mega */
/* protocol version (2) */ /* protocol version (2) */
Serial.write((uint8_t)0x41); client.write((uint8_t)0x41);
Serial.write((uint8_t)0x02); client.write((uint8_t)0x02);
/* end of data */ /* end of data */
Serial.write((uint8_t)0x00); client.write((uint8_t)0x00);
} }
/* /*
@@ -840,34 +976,36 @@ void debugprint() {
int i; int i;
#if 0 #if 0
Serial.print("divider = "); client.print("divider = ");
Serial.println(divider, DEC); client.println(divider, DEC);
Serial.print("delayTime = "); client.print("delayTime = ");
Serial.println(delayTime, DEC); client.println(delayTime, DEC);
Serial.print("trigger_values = "); client.print("trigger_values = ");
Serial.println(trigger_values, BIN); client.println(trigger_values, BIN);
#endif #endif
Serial.print("readCount = "); client.print("readCount = ");
Serial.println(readCount, DEC); client.println(readCount, DEC);
Serial.print("delayCount = "); client.print("delayCount = ");
Serial.println(delayCount, DEC); client.println(delayCount, DEC);
Serial.print("logicIndex = "); client.print("logicIndex = ");
Serial.println(logicIndex, DEC); client.println(logicIndex, DEC);
Serial.print("triggerIndex = "); client.print("triggerIndex = ");
Serial.println(triggerIndex, DEC); client.println(triggerIndex, DEC);
client.print("rleEnabled = ");
client.println(rleEnabled, DEC);
Serial.println("Bytes:"); client.println("Bytes:");
for (i = 0 ; i < savecount; i++) { for (i = 0 ; i < savecount; i++) {
if (savebytes[i] == 0x20) { if (savebytes[i] == 0x20) {
Serial.println(); client.println();
} }
else { else {
Serial.print(savebytes[i], HEX); client.print(savebytes[i], HEX);
Serial.write(' '); client.write(' ');
} }
} }
Serial.println("done..."); client.println("done...");
} }
/* /*
@@ -878,13 +1016,17 @@ void debugdump() {
int i; int i;
int j = 1; int j = 1;
Serial.print("\r\n"); client.print("\r\n");
for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) { for (i = 0 ; i < MAX_CAPTURE_SIZE; i++) {
Serial.print(logicdata[i], HEX); #ifdef USE_PORTD
Serial.print(" "); client.print(logicdata[i] >> 2, HEX);
#else
client.print(logicdata[i], HEX);
#endif
client.print(" ");
if (j == 32) { if (j == 32) {
Serial.print("\r\n"); client.print("\r\n");
j = 0; j = 0;
} }
j++; j++;
@@ -896,3 +1038,6 @@ void debugdump() {

View File

@@ -19,7 +19,7 @@ device.capturesizes = 64, 128, 256, 512, 1024
# Whether or not the noise filter is supported # Whether or not the noise filter is supported
device.feature.noisefilter = false device.feature.noisefilter = false
# Whether or not Run-Length encoding is supported # Whether or not Run-Length encoding is supported
device.feature.rle = false device.feature.rle = true
# Whether or not a testing mode is supported # Whether or not a testing mode is supported
device.feature.testmode = false device.feature.testmode = false
# Whether or not triggers are supported # Whether or not triggers are supported
@@ -30,7 +30,7 @@ device.trigger.stages = 1
device.trigger.complex = false device.trigger.complex = false
# The total number of channels usable for capturing # The total number of channels usable for capturing
device.channel.count = 5 device.channel.count = 6
# The number of channels groups, together with the channel count determines the channels per group # The number of channels groups, together with the channel count determines the channels per group
device.channel.groups = 1 device.channel.groups = 1
# Whether the capture size is limited by the enabled channel groups # Whether the capture size is limited by the enabled channel groups