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Cleanup README

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Cleanup older notes from the README.  Move the part about disabling
auto-reset to towards the end under ‘older notes’ and add a comment
about how it shouldn’t be necessary.  Almost move the part about the
device profiles as they are builtin to ols-0.9.7 or newer.
This commit is contained in:
Andrew Gillham
2014-06-22 15:30:55 -07:00
parent 9c83897b9b
commit 3128dc35f0
2 changed files with 36 additions and 45 deletions
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63
README
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@@ -1,19 +1,13 @@
SUMP compatible logic analyzer for Arduino 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 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/
The alternative client version is highly recommended. Download version "ols-0.9.7"
or newer for built-in device profiles.
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) 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 of PORTB. Arduino pin 13 / bit 5 is the Arduino LED, bits 6 & 7 are the
@@ -22,23 +16,7 @@ Uncomment CHAN5 below if you want to use the LED pin as an input and have
6 channels. 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.
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, To use this with the original or alternative SUMP clients,
use these settings: use these settings:
@@ -57,8 +35,37 @@ 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.
This master branch now supports Arduino 1.0 only. Older Notes
Checkout branch logic_analyzer_v0_5 for Arduino 22 support. ===========================================================================
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.
NOTE: 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
[ These are already included in ols-0.9.7 or newer so do not copy them. ]
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 no longer needed for the general case and is just here for reference. ]
[ DO NOT use this resistor unless absolutely necessary due to very old clients. ]
NOTE: 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. Release: v0.12 September 6, 2013.

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logic_analyzer.ino
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@@ -2,7 +2,7 @@
* *
* SUMP Protocol Implementation for Arduino boards. * SUMP Protocol Implementation for Arduino boards.
* *
* Copyright (c) 2011,2012,2013 Andrew Gillham * Copyright (c) 2011,2012,2013,2014 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
@@ -44,22 +44,6 @@
* 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
* if something else works better for you. * 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, * To use this with the original or alternative SUMP clients,
* use these settings: * use these settings:
* *