-->

ap/xxxxx

__

Broccoli18: 21:26 (tech_notes#231)

1) readpic (which is used to read PROGRAM memory - EEPROM data memory is accessed by way of readdata) has options the wrong way round -

length is first and THEN address a la:

./readpic 512 0

(read first 512 bytes) - we see it matches monitor.hex

but are config bits set?

try 9v to Vpp/MCLR (pin 4) and erasepic - yes configuration bits erased

and with writepic they are programmed!

2) next step is to re-test serials...

what is a pull-up resistor: 20:23 (tech_notes#230)

http://www.seattlerobotics.org/encoder/mar97/basics.html

The basic function of a pull-up resistor is to insure that given no other input, a circuit assumes a default value. Actually, there are two flavors of this circuit. A pull-up and a pull-down. Their function is the same, to create a default value for a circuit, but one pulls the line high, the other pulls it low.

cat and purrr part two:: 20:09 (tech_notes#229)

1) Monitor-running PIC is powerd from regulated 5v supply with 10k resistor from Vcc to MCLR (pin 4) and 2.2 uF Tantalum across

Vcc/GND connected via MAX3232 circuit to second laptops serial port

2) Second laptop is loaded with darcs (yum install darcs) and then

brood. Running now brood -e purrr as before

2.5) (purrr sheepsint) restore

3) ping returns random stream of numbers or nothing

4) as per example for sheepsint:

( : click PORTB 3 toggle ; ) upload

either returns 7681 0012 FFFF FFFF

or:

7681 0012 7681 0012

And then the following: ( click ) trun

nada!

5) Troubleshooting:

a) PIC is badly programmed: verify using parallel port programming circuit!

b) hardware problem with PIC on breadboard (noise): make small veroboard circuit with socket and parts! test very basic code

c) or serial section: program PIC for standalone serial echoing say!

d) problem with serial port on laptop: ????

e) problem with cat/purrr: last step! revert to earlier pulls, test, debug

see http://www.voti.nl/blink/index_1.html 16:27 (tech_notes#228)

darcs: 14:55 (tech_notes#227)

darcs get --partial http://zwizwa.goto10.org/darcs/brood

Subscribe: 12:41 (subscribe#1)

xxxxx rss feed

success! 12:06 (tech_notes#226)

(setq planner-rss-base-url "http://1010.co.uk/")
(setq planner-rss-category-feeds '(("."
                                    "~/Wiki/feed.rss"
                                    "<?xml version=\"1.0\" encoding=\"utf-8\"?><rss version=\"2.0\"><channel>
<title>ap/xxxxx/1010</title>
<link>http://1010.co.uk</link>
<description>xxxxx projects</description>
</channel></rss>\n")))

(setq planner-rss-feed-limits '(("." nil 10)))

test 5 - removed feed.rss - question of escaping inverted commas 12:04 (tech_notes#225)

now single escape \

test 5 - removed feed.rss - question of escaping inverted commas 12:04

now single escape \

test 4 12:00 (tech_notes#224)

test 3 11:59 (tech_notes#223)

XML Parsing Error: syntax error

planner-rss test 3 11:57 (tech_notes#222)

tech_notes

planner-rss test 3 11:57

tech_notes

planner-rss test 3 11:56

tech_notes

planner-rss test 3 11:54

tech_notes

planner-rss test 2 11:50 (tech_notes#221)

(first gives - search failed - ??)

on the road:

http://www.ntu.edu.sg/home5/PG04878518/:.html

planner-rss test 2 11:45

(first gives - search failed - ??)

planner-rss test 2 11:44

(first gives - search failed - ??)

planner-rss test 2 11:44

(gives - search failes - ??)

planner-rss test 2 11:42

(gives - search failes - ??)

planner-rss test 2 11:40

(gives - search failes - ??)

planner-rss test 2 11:39

(gives - search failes - channel)

planner-rss test 2 11:39

delicious.el hangs when contacting site: Contacting host... 11:30 (tech_notes#220)

url-http.el is suspect but works fine for other URLs?

(now testing planner-rss.el for rdf production)