Arduino IDE

gadget999 Fri Jun 05, 2015 10:11 pm

HI Guys

I have come here from the arduino forum – looking to get deeper into the Maple Mini

today i got my first boards in the post and have sucessfully programmed them using the Maple IDE

i followed the ibnstruction here — viewtopic.php?f=20&t=32

but the Arduino IDE does not want to play ball

this is thew error message i got below

————————————————————————————————————————————

Arduino: 1.6.4 (Windows 7), Board: “LeafLabs Maple Mini Rev 2 to Flash, Bootloader 2.0 (20k RAM,120k Flash)”

Sketch uses 12,564 bytes (10%) of program storage space. Maximum is 122,880 bytes.

Global variables use 3,104 bytes of dynamic memory.

java.lang.UnsupportedClassVersionError: CliTemplate/CliMain (Unsupported major.minor version 51.0)

at java.lang.ClassLoader.defineClass0(Native Method)

at java.lang.ClassLoader.defineClass(Unknown Source)

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$1(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

the selected serial port at java.lang.ClassLoader.loadClass(Unknown Source)

does not exist or your board is not connected

Exception in thread “main”

This report would have more information with
“Show verbose output during compilation”
enabled in File > Preferences.

—————————————————————————–

the boards i ordered look the same as this

http://www.ebay.co.uk/itm/New-1pc-ARM-C … 46331b4798

Any suggestions ?

Replies

gadget999 Wed Jun 10, 2015 4:32 pm

The Arduino forum is the secret to its success

some of us need help to get us started – if the help is not there, then you cant get started !

so you drop the product and go elsewhere

earlier this year i did try a pcduino

the product is good – it can boot into android or unbuntu and has a lot to offer

the support is terrible – i decided to drop it as a potential product because i could not get answers to the questions i had

i was really after a faster arduino and that is exactly what the stm32 will do

i would love to see Maple revisit the product and develop it further

madias Wed Jun 10, 2015 9:17 pm

i would love to see Maple revisit the product and develop it further
As being a pessimist: I don’t see that any developer will bring out a “commercial” maple or “STM32duino powered” STM32xxx board anymore, because:
The real potential is the price: You can grab a mini for 4USD, no industry would make profit (not only selling the boards, but development, support… )
next hurdle is the competition:
-) Microchip is good with digilent (chipkit) almost (if not more) powerful as STM32 and you can build your own “real” through hole breadboard PIC32MX250 for a few dollar
-) People who wanna be “state of the art” grab a teensy, a nice, little niche in the *duino world.
least but not last STM themselves has done everything false with the nucleo (in relation to arduino). Ok, they are cheap and powerful boards, but only putting some “arduino headers” on it (and praise it in their ads) without any further support, this is nothing more than a marketing gag if not a real sham package.

We are the waste collectors of the industries and buy their surpluses as a bargain on ebay/ali (all those STM32 dev-boards)

RogerClark Wed Jun 10, 2015 11:03 pm

I agree with Matthias,

The economics simply don’t work.

Of all the boards that I have, only the Maple Mini seems to be specifically targeted at Arduino users.

The other boards as sold as minimum system development boards, and I suspect a lot of them are used in industry inside other equipment
So we are just taking advantage of boards that are manufactured in bulk for another purpose.

Actually, looking at my F103CVET and F103ZET boards, and they don’t look like they’d get used in industry as there is no way to bolt the to a chassis.
So its hard to know why they exist. But I’m glad they do.

JensEP Fri Jun 12, 2015 3:26 pm

RogerClark wrote:

Actually, looking at my F103CVET and F103ZET boards, and they don’t look like they’d get used in industry as there is no way to bolt the to a chassis.
So its hard to know why they exist. But I’m glad they do.

gadget999 Fri Jun 12, 2015 3:34 pm

HI JensEP

where do you get those boards from ?

will it work with the Arduino IDE ?

JensEP Fri Jun 12, 2015 3:47 pm

gadget999 wrote:HI JensEP

where do you get those boards from ?

will it work with the Arduino IDE ?

gadget999 Fri Jun 12, 2015 4:03 pm

HI Jens,

thank you for the links – that is a very impressive prototyping board !

will this board program using the arduino IDE ?

JensEP Fri Jun 12, 2015 4:11 pm

gadget999 wrote:HI Jens,

thank you for the links – that is a very impressive prototyping board !

will this board program using the arduino IDE ?

ahull Fri Jun 12, 2015 8:41 pm

For completeness (and those who prefer ebay) The same style of board is available here. ebay item 301408798477 Note this is a VCT6, i.e. not identical to the one Jens linked above. It looks to be from the same design house.

Image

and here.. ebay item 291305557264 This is a ZET6

Image

NOTE they also appear to offer the VET6 very similar to the one Jens and Roger used.

.. and others. it might be worth PM’ing them to see if they will source all those other crazy boards for you.

RogerClark Fri Jun 12, 2015 10:23 pm

I will double check if the bootloader works with the V series board.

It definitely works with the ZET board.

martinayotte Sat Jun 13, 2015 12:56 am

ahull wrote:For completeness (and those who prefer ebay)

RogerClark Sat Jun 13, 2015 1:15 am

Interesting

Those boards are not quite the same.

One has dip switches for Boot 0 and Boot1 rather than the jump links, and the other has the SWD (STLink) connector (pins) vertically upwards on the top of the board, rather than sticking out from the edge.

Also, the LED on one board is connected to PB9 rather than PC13.

Also. One board has a SD card slot on the back, but the other doesnt, and I’m not sure if they both have I2C EEPROM

It amazes me why they bother to make 2 different PCBs. I could understand omitting the SD card and the EEPROM i.e have them on the PCB but not install them.
I wouldnt make sense for the same company to be making both of them, would it ???

RogerClark Sat Jun 13, 2015 1:40 am

Update.

I’ve just pushed an update to https://github.com/rogerclarkmelbourne/ … bootloader for the board with an LED on PB9.

I’ve tested on my STM32F103VET board and the bootloader seems to work fine.

I’ll sync the main repo later

martinayotte Sat Jun 13, 2015 1:43 am

Yes ! that doesn’t make sence …
What is also doesn’t make sense, is that the vendor as 2 offerings :
The link Andy provided and the one I provided are the same boards, although they name them differently, M74 and M77, but 2 different offerings, with $0.50 difference

(or maybe we need to take a magnifier to find out differences)

http://www.ebay.com/itm/301408798477
http://www.ebay.com/itm/301433302819

Personally, I like those, since they have the MicroSD.

RogerClark Sat Jun 13, 2015 3:33 am

Umm

The one with the SD is actually cheaper than the one that doesn’t have the SD.

However I suspect the SD is connected to SDIO and not SPI.I have asked GCSupermarket if they have a schematic, but didn’t get a reply (yet)

I suspect the SD may be connected via SDIO , which would make more sense to anyone starting from scratch than the Arduino / legacy approach of using SPI.
But I’ve not had time to test my board yet to see whats connected to what.

JensEP Sat Jun 13, 2015 8:26 am

RogerClark wrote:
I suspect the SD may be connected via SDIO , which would make more sense to anyone starting from scratch than the Arduino / legacy approach of using SPI.
But I’ve not had time to test my board yet to see whats connected to what.

RogerClark Sat Jun 13, 2015 10:02 am

Thanks

ahull Sat Jun 13, 2015 10:15 am

martinayotte wrote:Yes ! that doesn’t make sence …
What is also doesn’t make sense, is that the vendor as 2 offerings :
The link Andy provided and the one I provided are the same boards, although they name them differently, M74 and M77, but 2 different offerings, with $0.50 difference

(or maybe we need to take a magnifier to find out differences)

http://www.ebay.com/itm/301408798477
http://www.ebay.com/itm/301433302819

Personally, I like those, since they have the MicroSD.

JensEP Sat Jun 13, 2015 10:25 am

ahull wrote:
Is the cheaper one not a VCT6 and the extra $0.50 buys you a VET6 ? Worth the extra I think.

gadget999 Sat Jun 13, 2015 10:40 am

are these boards compatible ?

http://www.aliexpress.com/item/48-pin-A … 87337.html

http://www.aliexpress.com/item/5-PCS-LO … 04553.html