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matherp
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Joined: 11/12/2012
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Posted: 11:41am 16 Nov 2018

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Quote it says that the display is no longer produced;

I researched these displays and it seems the whole range is unobtainable except for any remaining stock. I suspect Sharp was having reliability or production issues and have stopped production.

Quote is-it a "private-joke"?

No, works perfectly for me.

from the STM FAQ

Quote Q: After I drag & drop my bin file in the Nucleo or Disco board disk on my Laptop, it disappears after the flashing is completed ?

A: The mass storage device of the STLink is a virtual disk. There is no storage memory beside the the one from the microcontroller. So it's normal that once programmed into the MCU the binary disappears from the virtual disk. MBED uses this trick to make drag an drop programming seamless on all platforms that support mass storage device.

Edited by matherp 2018-11-17

Frank N. Furter
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Joined: 28/05/2012
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Posted: 11:43am 16 Nov 2018

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Hi WW,

I know Sharp annoyingly doesn't make these displays anymore. They're still available , and I have some of them at home.

I would like to install it in this MetaWatch case and unfortunately the other display does not fit there!

This MetaWatch originally contained a LS013B4DN04 (only with other connectors)...

FrankEdited by Frank N. Furter 2018-11-17

matherp
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Posted: 11:46am 16 Nov 2018

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More on mbed for those interested Edited by matherp 2018-11-17

goc30

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Posted: 12:42pm 16 Nov 2018

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matherp said
No, works perfectly for me.

Quote Q: After I drag & drop my bin file in the Nucleo or Disco board disk on my Laptop, it disappears after the flashing is completed ?

I confirm: I copy/paste bin file, and file disappear as describe, but after that, when I print "mm.ver", I have always "5.0434" and not "5.0435", and my program (loaded before with older versus) is alway present

matherp
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Posted: 02:43pm 16 Nov 2018

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Attached 5.04.36

2018-11-17_004152_ArmmiteL4.zip

This should support the 128x32 SSD1306, it also fixes a bug I introduced into the normal I2C ssd1306 while tidying up some code. Use:

OPTION LCDPANEL SSD1306I2C32, orientation

for the 128x32 version

lizby
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Posted: 05:01pm 16 Nov 2018

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>Just copy the .bin file to that disk and magically the STM32 is updated

Worked for me at 38400 baud--thanks. I had to press the button on the Nucleo board to get the "ARMmite L4 MMBasic Version 5.04.36" banner.

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lizby
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Posted: 06:53pm 16 Nov 2018

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I ran the benchmarks posted by CircuitGizmos here:
https://www.thebackshed.com/forum/forum_posts.asp?TID=4685

[code]
BM1 BM2 BM3 BM4 BM5 BM6 BM7 BM8
Maximite 0.016 0.144 0.196 0.205 0.354 0.512 0.721 0.31

MicroMite 40MHz 0.028 0.18 0.285 0.289 0.644 0.892 1.346 0.376
MicroMite 48MHz 0.023 0.15 0.237 0.24 0.536 0.744 1.121 0.313

ARMmiteL4 0.023 0.226 0.389 0.427 0.759 1.016 1.516 0.846
[/code]

The ARMmiteL4 (at default speed) is slower than the MicroMite at either 48mHz or 40mHz (except for BM1), but it's still quite nice for an off-the-shelf module, even irrespective of the low-power features.
Edited by lizby 2018-11-18

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matherp
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Posted: 07:32pm 16 Nov 2018

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Quote The ARMmiteL4 (at default speed) is slower than the MicroMite at either 48mHz or 40mHz

Remember the default is 48MHz, full speed is at 80MHz (CPU 80)

lizby
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Posted: 07:47pm 16 Nov 2018

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Thanks. I didn't know what the default was, or how to change it. Here's the new table.

[code]

BM1 BM2 BM3 BM4 BM5 BM6 BM7 BM8
Maximite 0.016 0.144 0.196 0.205 0.354 0.512 0.721 0.31

MicroMite 40MHz 0.028 0.18 0.285 0.289 0.644 0.892 1.346 0.376
MicroMite 48MHz 0.023 0.15 0.237 0.24 0.536 0.744 1.121 0.313

ARMmiteL4 48MHz 0.023 0.226 0.389 0.427 0.759 1.016 1.516 0.846
ARMmiteL4 80MHz 0.016 0.15 0.261 0.285 0.49 .665 1.002 0.546

[/code]

So a little bit better, a little bit worse than the MicroMite at 48mHz.
Edited by lizby 2018-11-18

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matherp
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Posted: 07:53pm 16 Nov 2018

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Quote Thanks. I didn't know what the default was, or how to change it.

Valid speeds are 2, 4, 8, 16, 24, 32, 48, and 80

You can switch whenever you like in a program and the code automatically switches to 2 when paused and speeds up if necessary for DS18B20 and WS2812. UART and I2C are unaffected by changes, PWM and SPI are. RTC of course is unaffected as is TIMER

OA47

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Posted: 09:02pm 16 Nov 2018

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Quote I confirm: I copy/paste bin file, and file disappear as describe, but after that, when I print "mm.ver", I have always "5.0434" and not "5.0435", and my program (loaded before with older versus) is alway present

Same for me.

OA47

Windows 7 Ultimate SP1

disco4now

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Posts: 971

Posted: 10:35pm 16 Nov 2018

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Hi Peter,
The new driver does not seem to work for me. The screen flashes like it initialises, but no updates.
I noticed MM.VRES returns 21. Should be 32 I think so maybe a clue.

option lcdpanel disable
> option lcdpanel ssd1306i2c32,RL
> ? mm.ver
5.0436
> ? mm.hres
128
> ? mm.vres
21

Regards
Gerry

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matherp
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Posted: 10:50pm 16 Nov 2018

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Quote Option.DISPLAY_TYPE==SSD1306I2C

That was a typo. I don't have one of these displays so nothing to test with but try this:
2018-11-17_084937_ArmmiteL4.zip

Note to all: if the mbed upload isn't working for you just use the .bin file with ST-LINK

lizby
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Posted: 01:13am 17 Nov 2018

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How do you set the date and time in the RTC? Is there an onboard or on-chip capacitor or something which keeps the RTC going when power is disconnected?

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OA47

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Posted: 03:20am 17 Nov 2018

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Lizby from Peters first post.

Quote Different:
TIME$ command sets the value from the RTC
TIME$ function returns the value in the RTC
DATE$ command sets the value from the RTC
DATE$ function returns the value in the RTC

In answer to your second question, as far as I understand these units are designed for battery, the supply to the chip is the supply to the RTC.

OA47

TassyJim

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Posted: 03:25am 17 Nov 2018

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The RTC is internally connected to the main 3.3V rail so it will keep running when the CPU is in sleep but does need some power.

VK7JH
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lizby
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Posted: 03:51am 17 Nov 2018

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OA47 said Lizby from Peters first post.

Quote Different:
TIME$ command sets the value from the RTC
TIME$ function returns the value in the RTC
DATE$ command sets the value from the RTC
DATE$ function returns the value in the RTC

In answer to your second question, as far as I understand these units are designed for battery, the supply to the chip is the supply to the RTC.

OA47

I saw that, but I don't know what it means in practice, or what the proper syntax is. What sets the value of the RTC?

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TassyJim

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Posted: 04:05am 17 Nov 2018

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DATE$="17/11/2018"
TIME$="15:03:40"

From the command line or within a program.
It uses Australian date format dd/mm/yyyy

JimEdited by TassyJim 2018-11-18

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disco4now

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Joined: 18/12/2014
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Posted: 04:47am 17 Nov 2018

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OPTION LCDPANEL SSD3306I2C32

Hi Peter,
Its nearly there. I used the included driver but need to send one more initialisation instruction as seen in the fixme sub below. Once fixme is run it behaves pretty well.

There is one way to break it and I saw this with the Basic driver as well. Probably in the other SSD1306 drivers as well.
If you scale a font and are printing Centre or Right aligned and the text is calculated to start before the x=0 point i.e. negative the whole thing freezes and you need a hard reset. If you are not scaling its seems to be pretty much OK.(maybe prints not quite where expected but nothing serious). If left aligned text then it seems to handle all cases.
e.g. text below when scaled should be trimmed to fit, but freezes the whole thing.

text mm.hres/2,mm.vres/2,"Hello1234",CM,1,2

Quote

'https://www.banggood.com/0_91-Inch-128x32-IIC-I2C-Blue-OLED-LCD-Display-DIY-Oled-Module-SSD1306-Driver-IC-D C-3_3V-5V-p-1140506.html?cur_warehouse=CN

'on error skip 'if OPTION is already set then ignore the error
'OPTION LCDPANEL SSD1306I2C,orientation

fixme
line 0,0,mm.hres-1,mm.vres-1
line mm.hres-1,0,0,mm.vres-1
box 0,0,mm.hres,mm.vres
text mm.hres/2,mm.vres/2,"Hello World",CM,1,1
end

sub fixme
on error skip ' if I2C already open ignore the error
i2c open 400,1000
' send additional intialisation instruction to the display
OLED.SCmd(&HDA)'COMPINS '02 for 128*32
OLED.SCmd(&H02)
'OLED.SCmd(&H12)'12 for 128*64
end sub
' Send a command to the display
sub OLED.SCmd(Comnd%)
i2c WRITE &H3C,0,2,&H00,Comnd% 'address must be hardcoded to use at command line
end sub

Regards
Gerry
Edited by disco4now 2018-11-18

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TassyJim

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Posted: 05:21am 17 Nov 2018

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I have been running my L4 of an external 5V supply.
I have to have SB9 open so that it doesn't get reset every time you unplug the USB cable.
This has worked well until a recent update.
I am not sure which version started playing up but my L4 runs OK unplugged with the firmware from 9th November (V...34)

With any newer version the L4 will not run when the USB is unplugged.

A reset doesn't start it. Plugging the USB in and reset works.
I have checked the reset pin voltage and it is OK. Going back to the earlier firmware and it runs unplugged again.

Sophisticated test program:

Quote ' armite L4
OPTION AUTORUN ON
SETPIN D13, DOUT

SETTICK 1000, flick
DO

LOOP

SUB flick
PULSE D13, 100
END SUB

Jim

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