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matherp
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Posted: 07:46am 17 Aug 2021

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Quote A bug that probably is not a big deal now,

Please post your full setup and the PIO code i.e.everything I need to replicate/fix

led-bloon

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Joined: 21/12/2014
Location: Australia
Posts: 205

Posted: 09:26am 17 Aug 2021

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'
' PIO program that can output 250kHz and 50kHz on GP0 (pin 1)
' Using PIO PROGRAM LINE commands
'
SetPin 1,pio0
PIO clear 0

PIO program line 0,0,&He081 '0: set pindirs 1
PIO program line 0,1,&He101 '1: set pins,1 [1]
PIO program line 0,2,&He000 '2: set pins,0
PIO program line 0,3,1 '3: jmp 1

' 50kHz generation (delay changed) on 1 pin only (GP0)
PIO program line 0,4,&He901 '4: set pins,1 [9]
PIO program line 0,5,&He800 '5: set pins,0 [8]
PIO program line 0,6,4 '6: jmp 4

' set clock 1MHz for pio0 sequencer 0, assign 1 pin to SET group, base 0.
PIO init machine 0,0,1000000,pio(pinctrl 0,1,0,0,0,0)

' and start the output
PIO start 0,0

Do
PIO execute 0,0,1 'entry point for 250kHz generation = line 1
Pause 1000
PIO execute 0,0,4 'entry point for 50kHz generation = line 4
Pause 1000
Print ".";
Loop

<CTL>c to stop program running (PIO remains running in whichever frequency state at the time)
at command prompt issue:
PIO CLEAR 0 ' (pin 1 remains in whatever state at the time)
setpin 1,dout
pin(1)=0 ' IF pin is high
Just discovered that if pin 1 ends high, and in command mode try to set it low, it fails.
The moment I go into the editor, the pin automatically drops low.
led

Miss you George

matherp
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Posts: 9033

Posted: 10:14am 17 Aug 2021

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V5.07.00b12

PicoMiteV5.07.00b12.zip

Fixes a bug with PIO not releasing a pin properly

If no further issue surface in the next few days I will promote this version to the first release candidate for the PicoMite
Edited 2021-08-17 20:21 by matherp

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 4139

Posted: 07:56am 18 Aug 2021

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@Peter

Is it possible that the PORT command does not work?
Write single byte to port GP0....GP7.

List

SetPin 1,dout
SetPin 2,dout
SetPin 4,dout
SetPin 5,dout
SetPin 6,dout
SetPin 7,dout
SetPin 9,dout
SetPin 10,dout
Port(1,8)=&hAA

Run

[10] Port(1,8)=&hAA
Error : Invalid output pin

I have used OPTION RESET to make sure that no pins are reserved (i.e. for SYSTEM SPI).

Maybe did something wrong ?

Volhout

EDIT: sorry, I found it. My mistake. The port command is not intelligent, you have to tell it to skip the GND pins on the board, despite the consecutive GPx pins.

Port(1,2,4,4,9,2)=&haa

I find it not intuitive, but it works. It becomes especially non-intuitive if you use the GPx notification of the pin. In that case it is possible to use Port(gp0,8)=

'test port command

SetPin gp0,dout
SetPin gp1,dout
SetPin gp2,dout
SetPin gp3,dout
SetPin gp4,dout
SetPin gp5,dout
SetPin gp6,dout
SetPin gp7,dout

Timer = 0

Port(gp0,8) = &hAA
Port(gp0,2,gp2,4,gp6,2) = &hAA

Print Timer

Edited 2021-08-18 18:29 by Volhout

PicomiteVGA PETSCII ROBOTS

panky

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Joined: 02/10/2012
Location: Australia
Posts: 1101

Posted: 04:02am 19 Aug 2021

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Peter,

Do you have any plans to impliment the CPU SLEEP command to put the Pico into low power sleep?

Doug.

... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it!

led-bloon

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Joined: 21/12/2014
Location: Australia
Posts: 205

Posted: 06:48am 21 Aug 2021

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Peter
I get an "Error : Syntax" message when I try to use the following:
dat%=PIO(shiftctrl 0,1,0,1). Is the TINAM non-manual incorrect?
Can you help please?
led

Miss you George

matherp
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Posts: 9033

Posted: 07:07am 21 Aug 2021

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V5.07.00b14

PicoMiteV5.07.00b14.zip

fixes bug in pio(shiftctrl
implements CPU SLEEP n_secs

I don't know if the sleep makes any real change to power utilisation. The RP2040 doesn't have real low power modes like the STM32L series. If anyone wants to test then I'd be interested in the results

led-bloon

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Posts: 205

Posted: 09:51am 21 Aug 2021

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Peter
Thanks, but...
dat%=Pio(shiftctrl 0,1,0,1) is accepted ok
I now get a syntax error in:
PIO INIT MACHINE 0,0,50000,Pio(pinctrl 0,1,0,0,0,0),,Pio(shiftctrl 0,1,0,1)
Without the additional shiftctrl parameter, it works fine (I am not confident of the values of the parameters I am passing, but still testing).
I also noticed in the pico-sdk - pio.h - that shiftctrl has another Boolean parameter for shift direction. Do you concur?
led
Edited 2021-08-21 19:53 by led-bloon

Miss you George

matherp
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Posted: 12:07pm 21 Aug 2021

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Try again
PicoMiteV5.07.00b14.zip
- no version change

Quote I also noticed in the pico-sdk - pio.h - that shiftctrl has another Boolean parameter for shift direction. Do you concur?

Yes: I didn't include all parameters to keep the commands a bit simpler. You can always OR this in if required

Mixtel90

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Posted: 12:41pm 21 Aug 2021

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From initial tests SLEEP seems to save a shade under 3mA at 5v. I suspect that if the SMPS was shut down and a linear regulator used there may be a bigger difference (depending on the quiescent current of the reg).

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Posted: 12:59pm 21 Aug 2021

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Quote From initial tests SLEEP seems to save a shade under 3mA at 5v.

What is the current at normal running?

Mixtel90

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Posted: 01:16pm 21 Aug 2021

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On this one, 21mA. It's not running anything.

SetPin gp25,dout
Pin(gp25)=0
Pause 20
CPU sleep 20
End

Drops to 18.7mA while sleeping.
Edited 2021-08-21 23:18 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

Mixtel90

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Posted: 09:32pm 21 Aug 2021

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OPTION AUTORUN 1 works fine
OPTION AUTORUN 10 doesn't. The option has disappeared from the list after powering up.
I've not checked the other slots. Only just discovered this.

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

panky

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Posted: 01:31am 22 Aug 2021

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With an external LM1117 3V3 being fed from external 5V and the Pico 3V3 En held low, 75mA when not in sleep and 72mA when sleeping.

Interestingly, when the Pico is fed from external 5V into V-SYS and uses its own 3V3 switching regulator, the current draw is only 24mA, dropping to 21mA when sleeping (on my backpack board the LM1117 3V3 is still in circuit but with zero load, but it still draws 4mA which is the difference from Mick's numbers). Seems the 1117 external 3V3 reg is far less efficient than the Pico's onboard switcher.

Thanks anyway Peter for the work to impliment CPU SLEEP but as you said, hardly worth the effort.
Cheers,
Doug.

... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it!

matherp
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Posts: 9033

Posted: 07:16am 22 Aug 2021

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Quote OPTION AUTORUN 10 doesn't. The option has disappeared from the list after powering up.
I've not checked the other slots. Only just discovered this.

Works for me both on OPTION LIST and in function

Edited 2021-08-22 17:19 by matherp

Mixtel90

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Posted: 07:50am 22 Aug 2021

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weird... I'll try again. It definitely didn't work though. I had a digital clock in flash 10 and I couldn't get it to auto run. I tried by disconnecting & reconnecting usb and also by powering direct without usb. No go. I copied the prog into flash 1 and it works perfectly every time. I'll double check.

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

Mixtel90

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Posted: 08:05am 22 Aug 2021

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This is crazy....

> option list
OPTION AUTORUN 1
OPTION COLOURCODE ON
OPTION DISPLAY 33, 100
OPTION CPUSPEED (KHz) 133000
OPTION SDCARD GP22
OPTION SYSTEM SPI GP18,GP19,GP16
OPTION SYSTEM I2C GP12,GP13
OPTION LCDPANEL ILI9341, RLANDSCAPE,GP20,GP21,GP17
OPTION RTC AUTO ENABLED
OPTION GUI CONTROLS 59
OPTION MEMORY 80384, 80384
OPTION TOUCH GP14,GP15,GP28
GUI CALIBRATE 0, 362, 287, 897, 678

Press Reset and it runs fine.

>
> option autorun 10
>
Press RESET. Reboots
PicoMite MMBasic Version 5.07.00b11
Copyright 2011-2021 Geoff Graham
Copyright 2016-2021 Peter Mather
>
not running.

prog is in both slots 1 and 10. I've been running it from both so I know it works.
> flash list
Slot 1 in use: "'clock"
Slot 2 available
Slot 3 available
Slot 4 available
Slot 5 available
Slot 6 available
Slot 7 available
Slot 8 in use: "'WS2812B string"
Slot 9 in use: "'MM+ Demo"
Slot 10 in use: "'clock"
>
> option list
OPTION COLOURCODE ON
OPTION DISPLAY 33, 100
OPTION CPUSPEED (KHz) 133000
OPTION SDCARD GP22
OPTION SYSTEM SPI GP18,GP19,GP16
OPTION SYSTEM I2C GP12,GP13
OPTION LCDPANEL ILI9341, RLANDSCAPE,GP20,GP21,GP17
OPTION RTC AUTO ENABLED
OPTION GUI CONTROLS 59
OPTION MEMORY 80384, 80384
OPTION TOUCH GP14,GP15,GP28
GUI CALIBRATE 0, 362, 287, 897, 678
>
... and >poof!< it's disappeared in a cloud of invisible smoke ...

I wondered if it was the RTC stopping it but disabling that made no difference.

EDIT:
flash slots 2 and 8 aren't working either. I'll wipe the lot and reinstall.
Edited 2021-08-22 18:13 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Posted: 08:20am 22 Aug 2021

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Try without the option memory command - that is the most likely area for a bug in the firmware

Mixtel90

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Posts: 6630

Posted: 08:51am 22 Aug 2021

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I've reinstalled, without that bit, and slots 1 and 2 are fine now. I'll try adding that option and see if it messes things up.

EDIT:
Yep, it messed things up. Autorun 2 isn't working now. I tried option memory 0, 80384 and that didn't fix it, but it now reports memory 80384,83456 which is correct for 59 controls at 52 bytes each.

Option memory 0,81920 has restored autorun 2 to life.
Edited 2021-08-22 19:12 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Posts: 9033

Posted: 10:08am 22 Aug 2021

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Please try the attached - no version change

PicoMiteV5.07.00b14.zip

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