Any support or what do i need to get this working?

So yes, i have this board on the way. Looking at the Wiki i see the discovery is supported. Same chip, but i guess different layout

https://www.aliexpress.com/item/STM32-A … 02179.html

So what would it take to get this to work?
Has anyone used this?

Looks similar to the generic black F4 board, just that it has more flash (and RAM?).
Depending on what interfaces you need:
– for “standard” stuff you could try the Roger’s repo (or maybe my repo because it is a bit more developed), see http://stm32duino.com/viewtopic.php?f=39&t=1976.
– for any “special” stuff you should use the official STM core or Daniel’s generic core.

that’s a black devils cross without the cross silk screening.

it should work with STM32GENERIC, mine do
there’re multiple versions of STM32GENERIC, daniel, huaweix??

stephen

Whats a black devils cross board? Never heard of that, and google cant find anything

a “different makers(?) version” of this Black 407ZGT came with a 4 pointed cross silk screen center’d on the processor. board pinouts are the same.
that reminded of an A10 aircraft with German markings, nick named as the Devils Cross in Tom Clancy’s Red Storm Rising.
i’ve used it with both of the STM32GENERIC cores; dan- & hua-. and it’s listed in their board manager as a Black F407, a top level menu then selects the particular VE/ZE/ZG variant.

one of advertisers had a reference to ‘compatible tft displays’, albeit a bit pricey, i’ve since seen tft displays with identical “pins count & pin naming” quite a bit cheaper.

stephen

As you have the board, I could do with some more info…
Are there any example programs for this board? My board came with a mass storage program making the onboard flash and sd reader viewable on the computer… (just about its unstable though)

In the STM32GENERIC theres a a zgt (M4 DEMO) listed… is that this board?

Something else I cant find is the info on the flash or the sd reader… What pins or serial/SPI/i2c are they connected to?
Also what pins are the led indicators connected to?

Also program upload and serial print debugging… Whats the best way to do that? From what i can tell the USB on board cant be used for any of that?

Ive used an STlink to reflash some f103 boards but i dont remember it being used for serial debugging?

So whats the best way to go about it all?

if you believe the pics are of that board, then it’s a Black 407 ZET, zoom on 2nd pic and you can make out the ZE

there’s also a soic footprint on the back, some people already have done timing tests on SRAM and have posted their results.
2 makes. apart from fast and faster, samsung is one
yes, i have 10 of each for installation sometime. getting my resources together is worse than trying to herd a cat.

the VET chip is smaller and mounted square to the pcb, not rotated 45 degs
the ZGT is much the same size, way higher pin count and higher pin count side connectors.

i thought i’d posted connectors and such, i’ll gather what i’ve got and post/repost it.

all 3 are in at least one of the STM32GENERIC cores, sub-menu under Black F407 istr
unsure on the libmaple cores.

stephen

The pics on th site are indeed the VET I do have the zgt though…

But what about the propper way to upload and debug?

just checked the pics again, 2nd & 3rd show ZET’s
i always use st-link method, mainly 20way cable route with blue/white egg shape st-link, although i use the usb stick st-link type for blue pill etc
i’ve never had any real success with the other methods, worst i’ve had on st-link is the odd press reset or even rarer a power disconnect/connect

tft connectors change in size 34 v 36 and also change from header to socket on these boards.
pin name wise there are a number of displays that seem usable.

srp

ZET sorry :p too many chip names gets confusing

So yeah I have one of those cheap STlink usb dongles…

So that for firmware uploading then.

What about debugging? Can the stlink be used? i assume its not by the normal serial print?

you got a blue pill ? set it up as a bmp ? someone has done it and posted a bin file as well, rick i think

about the usb stick, istr it needs a hardware modification and has to be the right mcu / pcb layout. also been posted, try hackaday i think

srp

Set up the blue pill as a what?

And what do i need to modify the stmlink for?

as in black magic probe
st-link – you need to add the connection for debug serial output (trace signal) also needs a software mod/install and istr that the sticks may have either f101 or f103; also i think only one can be or one is easier to be modified, try looking on instructables

ve-tgt.png (57.07 KiB) Viewed 293 times

last of ze and both zgt pics

zgt-tft.png (237.61 KiB) Viewed 293 times

i’ll try with the schematics
zgt ok
ze too big
ve also too big, but i think it’s on the wiki

STM32F407ZGT-Devils-Cross-Schematic.pdf

(72.94 KiB) Downloaded 18 times

Could you please upload these files to wiki.stm32duino.com

Thats really interesting, but can you post a photo of your skull and crossbones board, as looking at the schematic i can see a couple of differences…

For starters I dont have a SWD pin set, but i do have a serial pin RX TX 5v GND, I also have a jumper called j8 and thats 8 pins but no indication for what…

I also dont have an eprom chip. but i do have a 12meg WS flash chip…
Also on the underside of my board i have a SDRAM footprint…

f4.jpg (245.88 KiB) Viewed 284 times

@stevestong
mad session of wiki file uploads, file names are either pretty good or mention the header numbers feel free
files with the name already up i didn’t replace i think.
—————–

well now! that’s a ZGT but the pcb is that of the ZET. connection wise – is it a drop-in replacement
i’ll check upgrade path in CubeMX, i wish they’d have run out of the zets faster

mine’s definitely a ZET

then i’m not surprised the schematic is a bit wacky, 8 pin 4×2 is for a nRF24, connections in schematic might be close though, avo time.
tft high address line used A6/A18/A?? there are some annotations on the display connector outline in the schematic, might also need the avo

do you still some extra pics ?

stephen

@Nutsy, for uploading and/or debuggin you don’t necessarily need BMP, it is fine if you have an STLink probe.
You connect that to JTAG header (between SD and USB) pins TMS(PA13)=SWDIO, TCK(PA14)=SWCLK, GND and 3.3V(Vref). That’s all.

@stevestrong
i said BMP as OP wanted debug output.
rather than searching for the trace mod to an usb stick st-link, avoids f101/f103 issue as well.
also who hasn’t a spare BP to hand

407 ds doesn’t seem to care ZE v ZG
also
Full compatibility throughout the family
The STM32F405xx and STM32F407xx are part of the STM32F4 family. They are fully pin-
to-pin, software and feature compatible with the STM32F2xx devices, allowing the user to
try different memory densities, peripherals, and performances (FPU, higher frequency) for a
greater degree of freedom during the development cycle.
The STM32F405xx and STM32F407xx devices maintain a close compatibility with the
whole STM32F10xxx family. All functional pins are pin-to-pin compatible. The
STM32F405xx and STM32F407xx, however, are not drop-in replacements for the
STM32F10xxx devices: the two families do not have the same power scheme, and so their
power pins are different. Nonetheless, transition from the STM32F10xxx to the
STM32F40xxx family remains simple as only a few pins are impacted.
Figure 4, Figure 3, Figure 2, and Figure 1 give compatible board designs between the


[Nutsy – Sun Jan 21, 2018 3:06 pm] –
What about debugging? Can the stlink be used? i assume its not by the normal serial print?

OK, I understood that as “normal” debugging, and not debugging with serial print via STLink.
Yes, STLink can be used for debugging, but not sending serial printouts over STLink.

I also ordered a VET a few weeks ago as well and thats turned up… Heres a couple of pictures of it and comparing the two…

Nutsy, I bought a VGT6 at the same time as my VET6, but mine is quite diferent:

Your VG is massive!

The eBay listing for my VG said it had on-board ST-Link but, of course, it hasn’t.

So I just connected ST-Link SWDIO / SWCLK to PA13 / PA14 and PA9 / PA10 to a separate FTDI and, to my surprise, it all worked (using Arduino IDE and generic F407 setting). A bit of a mess about, but a simple solution.

[Wolfie – Mon Jan 29, 2018 1:35 pm] –

Your VG is massive!

*blushes* why thank you…

oh and the massive board is a zgt, not a vgt or vet

yeah theres a few different versions going around. But good to know stlink works as it should… I might start playing with the board soon…

strictly speaking it has st-link connections, but perhaps as not you expected e.g. as in a nucleo
stephen

oh and the massive board is a zgt, not a vgt or vet

Ah yes, my mistake, but I’m not happy that your board is bigger than mine, I want a black zg too!

strictly speaking it has st-link connections, but perhaps as not you expected e.g. as in a nucleo

I think you’re right on both points. I hadn’t thought of it like that.