00:00:00 --- log: started forth/19.09.23 00:18:16 --- join: xek (~xek@apn-37-248-138-80.dynamic.gprs.plus.pl) joined #forth 01:29:33 --- quit: creat10013 (Ping timeout: 260 seconds) 01:57:29 --- quit: dys (Ping timeout: 245 seconds) 03:51:56 --- join: iyzsong (~iyzsong@fsf/member/iyzsong) joined #forth 03:58:34 --- quit: rdrop-exit (Quit: Lost terminal) 05:24:21 --- join: rdrop-exit (~markwilli@112.201.170.86) joined #forth 05:24:29 --- join: dddddd (~dddddd@unaffiliated/dddddd) joined #forth 06:08:11 --- join: creat1001 (63be2f20@99-190-47-32.lightspeed.chrlnc.sbcglobal.net) joined #forth 06:08:27 Hello every one. 06:13:22 Hi creat1001 06:13:40 Hi rdrop 06:20:38 --- join: dave0 (~davezero@069.d.003.ncl.iprimus.net.au) joined #forth 06:23:07 exit 06:24:25 Hi presiden 06:25:18 hi rdrop- 06:26:46 --- quit: mtsd (Remote host closed the connection) 06:39:44 Gotta go, catch you all later 06:39:48 --- quit: rdrop-exit (Quit: Lost terminal) 06:46:41 --- quit: creat1001 (Remote host closed the connection) 06:52:44 --- quit: iyzsong (Quit: ZNC 1.7.1 - https://znc.in) 07:13:30 --- quit: dave0 (Quit: dave's not here) 07:44:42 --- join: creat1001 (63be2f20@99-190-47-32.lightspeed.chrlnc.sbcglobal.net) joined #forth 07:52:06 --- join: Keshl___ (~Purple@207.44.70.214.res-cmts.gld.ptd.net) joined #forth 07:52:06 --- quit: Keshl__ (Read error: Connection reset by peer) 08:55:19 --- nick: Keshl___ -> Keshl 10:28:53 --- quit: reepca (Remote host closed the connection) 10:51:46 --- join: WickedShell (~WickedShe@159-118-128-145.cpe.cableone.net) joined #forth 10:58:35 --- join: DKordic (~user@178-222-28-243.dynamic.isp.telekom.rs) joined #forth 11:36:02 --- join: dys (~dys@2a01:598:a004:109a:226:5eff:fee9:68d2) joined #forth 12:23:20 --- quit: creat1001 (Remote host closed the connection) 13:09:41 --- quit: gravicappa (Ping timeout: 268 seconds) 13:41:38 --- join: dave0 (~davezero@069.d.003.ncl.iprimus.net.au) joined #forth 13:59:35 --- part: tangentstorm left #forth 14:06:06 --- quit: xek (Ping timeout: 276 seconds) 14:10:15 --- quit: kori (Ping timeout: 245 seconds) 14:42:55 --- join: ryke (~Thunderbi@mail.homecaregiverstn.org) joined #forth 15:31:00 --- quit: ryke (Ping timeout: 265 seconds) 15:55:59 --- quit: dave0 (Quit: dave's not here) 16:08:48 --- quit: cheater (Ping timeout: 240 seconds) 16:11:00 --- join: cheater (~cheater@unaffiliated/cheater) joined #forth 16:37:01 --- quit: inode (Quit: ) 16:42:05 --- join: dave0 (~davezero@069.d.003.ncl.iprimus.net.au) joined #forth 16:53:04 --- join: kori (~kori@2804:14c:85a3:81b8::1000) joined #forth 16:53:04 --- quit: kori (Changing host) 16:53:04 --- join: kori (~kori@arrowheads/kori) joined #forth 17:13:53 --- join: rdrop-exit (~markwilli@112.201.170.86) joined #forth 17:17:28 --- join: tpbsd (~Terry@2001:44b8:314b:a800::10) joined #forth 17:17:28 --- quit: tpbsd (Changing host) 17:17:28 --- join: tpbsd (~Terry@mecrisp/staff/tp) joined #forth 17:17:28 --- quit: tp (Read error: Connection reset by peer) 17:29:17 --- join: X-Scale` (~ARM@34.201.28.37.rev.vodafone.pt) joined #forth 17:32:19 --- quit: X-Scale (Ping timeout: 265 seconds) 17:32:20 --- nick: X-Scale` -> X-Scale 17:51:49 --- join: ryke (~Thunderbi@71-9-169-152.dhcp.jcsn.tn.charter.com) joined #forth 18:06:49 --- nick: tpbsd -> tp 18:41:03 --- quit: ryke (Ping timeout: 276 seconds) 19:38:20 --- quit: dave0 (Quit: dave's not here) 20:22:08 output from a little utility I just wrote which calculates the USART baud rate setting for various rates based on the existing MCU settings of clock speed and PLL multiplier. It uses the Mecrisp-Stellaris s31.32 fixed point support. 20:22:26 CLOCK: 8000000 PLL multiplier: 6 BUS CLOCK: 48000000 Hz 20:22:26 for a baud rate of 115200 the usart1_brr should be: 208,33 20:22:26 for a baud rate of 460800 the usart1_brr should be: 52,08 20:22:26 for a baud rate of 921600 the usart1_brr should be: 26,04 20:22:26 for a baud rate of 1843200 the usart1_brr should be: 13,02 20:23:00 the web page writeup is https://mecrisp-stellaris-folkdoc.sourceforge.io/f0-baudrate-calc.html#f0-baudrate-calc for anyone who is interested 20:40:46 Kudos tp! 20:41:26 it's a example of working with the bare metal in Forth which is pretty darn handy :) 20:42:23 of course the source is as befits a noob like me, so apologies to any Forth ZEN Gurus for damaged sensibilities ;-) 20:43:18 I'm pretty confident that in another decade my Fourth source will cause less upset stomachs 20:43:42 :-)) 20:45:12 i get a few requests to explain s31.32 fixed point as most people from C are only experienced in using a floating point library 20:52:50 Most desktop programmers are never exposed to fixed point arithmetic and manual scaling. 20:53:23 agreed, why bother when you have a 12 core i7 ? 20:54:55 I have a deep seated mistrust of floating point, mostly I don't trust myself to grok all the edge cases. 20:55:57 I read that a fair bit from various programmers 20:57:00 I'm pretty sure appolo 11 didnt have a FP coprocessor in the navigation computer ;-) 20:57:40 I keep the old issue of ACM Computing Surveys with the fp paper on my shelf to remind me not to get tempted by fp. 20:58:36 https://www.itu.dk/~sestoft/bachelor/IEEE754_article.pdf 20:58:55 The above is a pdf of that article 20:59:57 My eyes rolled to the back of my head when I read it. 21:01:26 --- quit: pareidolia (Ping timeout: 268 seconds) 21:02:19 "A strange game. The only winning move is not to play." -- Wargames 21:05:05 Time for lunch, catch you later tp. 21:05:24 --- quit: rdrop-exit (Quit: Lost terminal) 21:09:27 haha, thanks :) 21:11:13 --- join: pareidolia (~pareidoli@87.213.124.143) joined #forth 21:11:34 --- quit: dddddd (Remote host closed the connection) 21:17:58 --- join: ryke (~Thunderbi@71-9-171-192.dhcp.jcsn.tn.charter.com) joined #forth 21:33:08 --- join: gravicappa (~gravicapp@h109-187-246-245.dyn.bashtel.ru) joined #forth 21:46:17 --- quit: Keshl (Read error: Connection reset by peer) 21:46:27 --- join: Keshl_ (~Purple@207.44.70.214.res-cmts.gld.ptd.net) joined #forth 21:54:08 --- quit: djinni (Quit: Leaving) 22:01:13 --- join: djinni (~djinni@static.38.6.217.95.clients.your-server.de) joined #forth 22:19:50 --- quit: MrBismuth (Ping timeout: 245 seconds) 22:22:42 --- join: reepca (~user@208.89.170.37) joined #forth 22:26:07 --- join: MrBismuth (~ArcMrBism@2600:6c58:4200:ad9:158d:b91:c7e6:7b29) joined #forth 23:35:30 --- quit: dys (Ping timeout: 276 seconds) 23:50:59 --- quit: cartwright (Remote host closed the connection) 23:53:20 --- join: cartwright (~chatting@gateway/tor-sasl/cantstanya) joined #forth 23:59:59 --- log: ended forth/19.09.23