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Forum Index : Microcontroller and PC projects : MMBasic on the Raspberry Pi Pico - proposed functionality
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| lizby Guru  Joined: 17/05/2016 Location: United StatesPosts: 3016 |
"Both" . . . does this imply that you are planning to design a PCB with 2x20 connector? Perhaps with pads to support castellated as well as DIP soldering? It all looks very enticing (but I do hope a keyboard can be supported for LCD console). PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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lew247 Guru Joined: 23/12/2015 Location: United KingdomPosts: 1676 |
Version with wifi and bluetooth [QUOUTE]The u-blox NINA-W102 radio module makes this the only connected RP2040 option. It gives you full WiFi 802.11b/g/n connectivity, along with Bluetooth and BLE v4.2 There are a few with Wifi only, some with DVI via hdmi connector, some dvi adapters and much more, most with built in SPI flash memory Irrelevant really now anyway |
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| lew247 Guru Joined: 23/12/2015 Location: United KingdomPosts: 1676 |
RP2040 with qwerty keyboard and display  |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 5735 |
Lew, Raspberry Pi only supply one version - the original. They are licensing the design to other manufacturers, who can customize the hardware. None of those is a Raspberry Pi Pico although they all use the RP2040. The Pico only has 2MB of flash on it, several of the other boards have increased this, allowing them to incorporate more facilities that simply won't fit on the Pico. At the moment, anyway, Peter is designing only for the Pico. That will ensure that his port will run on that board and possibly on the others - if they haven't messed up their hardware designs (tied up required IO etc.) too much. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 1985 |
ooh... ooh... "Code may be executed directly from external memory, through a dedicated SPI, DSPI or QSPI interface. A small cache improves performance for typical applications." so that 96K thing could be upto 16MB with the right firmware  Edited 2021-05-28 23:51 by CaptainBoing |
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| robert.rozee Guru Joined: 31/12/2012 Location: New ZealandPosts: 2290 |
RAM is fixed at 264k, with no option to expand in the RP2040 processor. external flash memory (up to 16mb) is used to execute compiled C code - the mmbasic interpreter. this is helped along by 16k (?) of cache that is invisible. a basic program is just data as far as the mmbasic interpreter is concerned, hence copied into RAM for fast access. if an mmbasic program was retrieved a token at a time from flash, as well as the interpreter running from flash down the same SPI bus and through the same 16k cache, this would produce a performance hit. so, effectively, peter is planning to 'cache' the whole mmbasic program in RAM. 96k is quite a lot of space, especially given that it looks like you'll be able to chain one program from another. now an interesting possibility: hook two pico's together via their USB ports - the pico is capable of acting as a USB host. pico 'A' (as a CDC device) could run mmbasic, with all the I/O pins free, while pico 'B' (as a USB host) could act as a VT100ish terminal, drive an LCD screen, and scan a matrix keyboard. this terminal emulation could be written in python, largely using existing code that is already out there. this could give you a neat little pocket computer in a form-factor similar to this:  cheers, rob :-) Edited 2021-05-29 01:09 by robert.rozee |
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thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 3848 |
Nice. Though you might save yourself a lot of trouble by buying a second-hand Psion Series 5 on ebay, OPL was a neat BASIC inspired language. Best wishes, Tom Edited 2021-05-29 01:35 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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RetroJoe Senior Member  Joined: 06/08/2020 Location: CanadaPosts: 290 |
What would be the fun in that ??  Edited 2021-05-29 02:10 by RetroJoe Enjoy Every Sandwich / Joe P. |
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| CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 1985 |
woot! less than 24 hours delivered.  just need some firmware... now what should I use? ... |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8592 |
OK: here is the very first alpha version. PicomiteV5.07.00a0.zip Connect a SD card as follows (see first page for the cheapest possible SDcard "adapter"): GP2 - CLK GP3 - MOSI GP4 - MISO GP5 - CS Connect a terminal via the USB and have a play All normal MMBasic commands are there including full file support but no other I/O and no permanent options and/or VAR SAVE Specific stuff FLASH command NB: FLASH ERASE and FLASH SAVE trigger a reset after completion Edited 2021-05-29 22:58 by matherp |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
Liftoff: Maximite Benchmark tests Benchmark 1 0.008 Benchmark 2 0.056 Benchmark 3 0.093 Benchmark 4 0.095 Benchmark 5 0.173 Benchmark 6 0.264 Benchmark 7 0.417 Benchmark 8 0.209 > ?mm.device$ RP2040 PicoMite > This is quite fabulous. Didn't wire up SD yet. Did F10 (AUTOLOAD), copied benchmark.bas, F4 to look, F2 to run. PicoMite MMBasic Version 5.07.00a0 Copyright 2011-2021 Geoff Graham Copyright 2016-2021 Peter Mather > memory 0 % Program (0 lines using 0KB of 96KB) 0 % Array, strings and general (using 0KB of 96KB) 0 % Variables (using 0 of 512) > And > list commands ? Autosave Case Case Else Cat Chdir Clear Close CLS Color Const Continue Data Date$ Delete Dim Do Dump Edit Else Else If Else If ElseIf End End Function End If End If End Select End Sub EndIf Erase Error Exit Exit Do Exit Do Exit For Exit Function Exit Sub Files Flash For Function GoSub GoTo If Input Kill Let Line Input List Load Local Loop Memory Mkdir Name New Next On Open Option Pause Poke Print Randomize Read Rem Restore Return Rmdir Run Save Seek Select Case Sub Time$ Timer Trace TROFF TRON Wend While Total of 82 commands > list functions * + - / < << <= <> = =< => > >= >> \ ^ Abs( ACos( And As Asc( ASin( Atan2( Atn( Bin$( Chr$( Cint( Cos( Cwd$ Date$ Deg( Dir$( Else Eof( Eval( Exp( Fix( For GoSub GoTo Hex$( HEX$( Inkey$ Input$( Instr( Int( INV LCase$( Left$( Len( Loc( Lof( Log( Mid$( MM.Device$ MM.Errmsg$ MM.Errno MM.Errno MM.FONTHEIGHT MM.FONTWIDTH MM.I2C MM.Onewire MM.Ver Mod Not OCT$( Oct$( Or Pi Pos Rad( Right$( Rnd Rnd( Sgn( Sin( Space$( Sqr( Step Str$( String$( Tab( Tan( Then Time$ Timer To UCase$( Until Val( While Xor Total of 92 functions and operators > ~ Edited 2021-05-29 23:23 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| robert.rozee Guru Joined: 31/12/2012 Location: New ZealandPosts: 2290 |
can report the following: just sitting at the MicroPython prompt, the pico draws 18mA. running the following one-line python program: while 1:print('hello world ',end='') the pico draws 23mA. sitting at the mmbasic command prompt, the pico draws 38mA. running a basic program, this increases to 43mA. speed wise: Sieve of Eratosthenes Speed Test 1.556 seconds 48122 statements 19747 lines 30926.73522 statements per second 12690.87404 lines per second this is approximately twice as fast as an MX470 (MM+), and about 1/4 the speed of a CMM2. meanwhile, the current consumption is similar to an E-28 at 40MHz (MX170+16F1455). all-in-all, this is pretty impressive! cheers, rob :-) Edited 2021-05-30 00:09 by robert.rozee |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
And with SD card: Hello, world from PicoMite > flash save 2 PicoMite MMBasic Version 5.07.00a0 Copyright 2011-2021 Geoff Graham Copyright 2016-2021 Peter Mather > flash run 2 Hello, world from PicoMite > files A:/ 4208 ta.bas 4698 tain.txt 0 directories, 2 files > save "hello.bas" > files A:/ 36 hello.bas 4208 ta.bas 4698 tain.txt 0 directories, 3 files > load "hello.bas",r > run Hello, world from PicoMite > list Print "Hello, world from PicoMite" I used this micro sd module because I had some. Wiring:  My Newfoundland wife says I have a tendency to be what in Newfonese is a "keener". Is this proof? PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
Oops. > Open "tain.txt" For input As #1 > ?mm.errno Error : Internal fault (sorry) (I note that with LIST FUNCTIONS, MM.ERRNO is listed twice.) PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
Running Paul_L's ta.bas benchmark program with "IF MM.errno" commented out, and one line in the code split because with "LOAD "ta.bas" I got "line too long", I get this: ... Please input a description of this computer or a null string to Cancel. .... ?picomite picomite Running on computer 'picomite' on 01-01-2000 at 00:28:08 Starting 1,000,000 iterations of empty loop ... Finished 1,000,000 iterations of empty loop in 4726ms or 0.0047 ms per iteration. Starting reading 100 line file 10,000 times ... [91] Line Input #1, in$ Error : Line is too long > ta.zip (Looks like no carriage return at the end of the last line in tain.txt.) (And no carriage return at the end of ta.bas caused my initial "line too long" error.) ~ Edited 2021-05-30 00:56 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| robert.rozee Guru Joined: 31/12/2012 Location: New ZealandPosts: 2290 |
a couple of minor problems: AUTOSAVE isn't terminated by ctrl-Z. ctrl-C seems to work, usually. subsequent use of AUTOSAVE seems to append to the program already in RAM. after FLASH SAVE n resets the pico, the USB connection is dropped. this will drive people crazy! it may be worth considering having flash slot '0' reserved for saving the current program held in the editor when the editor is exited with F1 or F2, and which is then loaded back into the editor whenever it is started up. this would create behaviour that is backwards-compatible with the MX170, and prevent someone exiting the editor then powering down and losing their program. btw, i'm running without any SD card attached, and everything seems fine. cheers, rob :-) |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
The ta.bas ran to completion once I saved it to the SD card with a carriage return at the end of the bas file, and one also at the end of the tain.txt file: .... ?picomite picomite Running on computer 'picomite' on 28-05-2021 at 11:49:36 Starting 1,000,000 iterations of empty loop ... Finished 1,000,000 iterations of empty loop in 4726ms or 0.0047 ms per iteration. Starting reading 100 line file 10,000 times ... Finished reading 100 line file 10,000 times in 252711ms or 0.2527 ms per iteration. Starting writing 1,000,000 line file ... Finished writing 1,000,000 line file in 178653ms or 0.1787 ms per iteration. Starting parse 9 strings from 100,000 strings ... Finished parse 9 strings from 100,000 strings in 104751ms or 0.1164 ms per iteration. Starting extracting the value from a string 1,000,000 times ... Finished extracting the value from a string 1,000,000 times in 50795ms or 0.0508 ms per iteration. Finished 4,900,000 iterations on computer 'picomite' in 591655ms or 0.1207 ms per iteration. =============================================== PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8592 |
And will always be thus, because the firmware runs from flash. In order to write to flash interrupts have to be disabled which, of course, kills the USB No for the same reason |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3016 |
More "Just Playing": PicoMite MMBasic Version 5.07.00a0 Copyright 2011-2021 Geoff Graham Copyright 2016-2021 Peter Mather > OPTION LCDPANEL ili9341, L, GP18, GP19, GP20 > option list > cls Display not configured > Dang! PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8592 |
PS - use W10 and Teraterm and it re-connects completely automatically and transparently Edited 2021-05-30 01:59 by matherp |
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