Until a USB bootloader with upload capability is available, you will require some sort of programmer to talk to and upload code to 32blit.
Internally we’re currently using the snap-off programmers from Nucleo boards which you can find here for £8 -
We designed the 32blit PCB to work directly with these, so they act as a little kickstand for convenient desktop programming.
Tried an ST-Link or clone that also works? Let us know!
@gadgetoid
Just curious if the NUCLEO-F070RB would also work?
I looked through their data sheets and couldn’t spot the difference :/
There’s a local (Australian) supplier discounting them on ebay.
https://www.ebay.com.au/itm/1pcs-NUCLEO-F070RB-STMicroelectronics-Dev-kit-STM32-STM32F070RB/382655062221?hash=item591804e0cd:g:rjoAAOSwBRBc-uMi
So to clear up any confusion…Is this a required board or will the blit be usable without it?
Clarified this as applying to beta users and pre-USB-bootloader times. Anyone looking to do any totally baremetal development on 32blit would also want one of these.
Final units will have firmware with a USB bootloader for code upload.
Can we use the cheap ST programmer clones to flash the flash?
And what about the NUCLEO-F070RB?
I don’t know, in either case. Albeit I think Ali tested a cheap ST programmer. And the breakaway ST-Link on the F070RB looks identical to the one we’re using which is from the H743ZI judging by the few that are lying around these office robbed of their programmers.
Thanks for the reply.
I went with the the discounted F070RB above
A legit ST-link cost the same :D
Some info from discord:
you can also just get one of these https://www.ebay.co.uk/itm/Mini-ST-Link-V2-stlink-Emulator-Downloader-STM8-STM32-With-Cover-Dupont-Cable/292479630125?epid=22025003352&hash=item441924fb2d:g:df8AAOSwbYdapYs5
eBay
Mini ST-Link V2 stlink Emulator Downloader STM8 STM32 With Cover +…
Support all series of STM32 and STM8. Support all STM8 series debug. 1x ST-Link V2 Emulator Downloader. Support all STM32 series SWD interface debug. 4x 20 cm Female - Female Dupont cables. Mini ST-LINK/V2,which is fully compatible with the official functions,support for auto…
whats the difference?
if you order it from aliexpress now you will probably get it before your 32blit and for under £2
the different is that the second one is a chinese clone
So how do I know which one of these on Amazon is compatible?
if it says stlink V2 or stlink V2-1 it is compatible
Is more memory better in that case, or will it not matter?
more memory?
I see they have them all the way up to 512k
that is the target board
when you buy a nucleo board you get two things - the target board (similar to an arduino) and the programmer board
the programmer board snaps off (although you dont actually need to snap it off to use it for external programming)
the programmer bits are all the same - the target is different depending on which board you buy
The nucleo boards in our case are programmer and bonus toy
Does it need to be stlink v2? Can see some cheap stuff on Wish that’s just mentioning stlink
so you can buy the cheapest nucleo board, which afaict is the F103 version for £10
at least that is the cheapest on amazon
or you can buy the chinese stlink clone, which is just the programmer part, and a copy of an older version
One thing to be aware of is those Chinese STLink knockoffs usually don’t have a working RST pin.
Hi,
I’ve got the STM32 Nucleo-64 and thought I would have a play while waiting from my 32blit to turn up.
Is anyone using it with Linux?
Could someone give me a clue how I can communicate with the board.
Thanks
Fred
EDIT Looks like I need to play with OpenOCD
You can flash it over USB in DFU mode - I just did that successfully so now no need for an ST link cable ?
I forgot I bought this to debug 32blit.
I haven’t need to use it… debugging in linux works fine, then the TTY out over USB also works ok.
But now I’m stuck with audio issues on 32blit, so I need to use it :)
I’ve used remote gdb via serial before, but JTAG is new to me.
I found a pdf of the manual that’s close enough (nucleo 64), it explains how to use the st link v2 and the pins… it’s a good start.