blacksphere/blackmagic

In application debugger for ARM Cortex microcontrollers.

Piotr Esden-Tempski

@esden

Indeed, holding the button while plugging into the computer pretty much always works. Also try shorting the pads of the button, in case the button got crushed and broken due to use and storage.

Michael N. Moran

@mnmoron

@esden Thank you for the link.

Piotr Esden-Tempski

@esden

The bootloader does not allow writing into the bootloader section. I don't know how overwriting the bootloader would happen by accident to be honest.

UweBonnes

@UweBonnes

A close look with a magnifying glass might also be worth a try.

Piotr Esden-Tempski

@esden

@mnmoron please tell me how you found this chat here. So I can fix any link that you might have found. :)

Michael N. Moran

@mnmoron

@esden Google and GitHub (https://github.com/blacksphere/blackmagic). I am using an nRF52840 board from SparkFun for Bluetooth Mesh development. The firmware that came on the BMP does not seem to support the nRF52 completely, so I was attempting to load new firmware built from GitHub.

Piotr Esden-Tempski

@esden

@mnmoron humm... the link in the github repository has the correct link... I guess google still remembers old links for a very long time

if you used dfu-util and the built in bootloader to flash the firmware you can't overwrite the bootloader ...

you should still be able to "force" the bootloader if you hold the button on the BMP and plug it in to the usb port while it is pressed

the only other thing I can imagine is that the button itself is broken

UweBonnes

@UweBonnes

You can not neither erase the bootloader with stm32mem. Michaels original problem was that he loaded the elf file.

Piotr Esden-Tempski

@esden

so the application firmware is corrupt not the bootloader itself

You have to be able to force the bootloader then

the best way to make sure is to take tweezers, short the button pads together and plug in the USB... this should force the bootloader even if the button itself is broken

Michael N. Moran

@mnmoron

I'll give the tweezer trick a try later... now... I must eat. :-)

UweBonnes

@UweBonnes

Good luck and bye!

Michael N. Moran

@mnmoron

@esden The tweezer trick did not work.

chmousset

@chmousset

Hi everyone!
Has anyone managed to make a successful connection to a ZYNQ's CPU?
So far, I've only managed to get blackmagic to (unreliably) 'detect' the PL (FPGA) TAP but that's all...

Piotr Esden-Tempski

@esden

I think it is time for another announcement again. We are moved the chat from Gitter to Discord. Join us on Discord chat for all the fun and information about ongoing projects as well as future support of the BlackMagicProbe hardware and software. You can find the Discord link here: https://1bitsquared.com/pages/chat

@chmousset ^

chmousset

@chmousset

oops, I didn't see that. Will move on discord. Thanks @esden

Alexey Shvetsov

@alexxy

@UweBonnes hi. what do you think about swlink-f4 target i think it can merge f4discovery and hydrabus

Anatol Ulrich

@spookyvision

heyoo :)
I've successfully used a BMP attached to an STMF103 board, but I'm out of luck with STMF411 - the program gets flashed and starts, but gdb apparently has connection issues:

Attaching to program: /Users/ace/play/stm32/f411-leds-2/target/thumbv7em-none-eabihf/release/app, Remote target
0x080061fc in Reset ()
(gdb) load
Loading section .vector_table, size 0x198 lma 0x8000000
Loading section .text, size 0x6100 lma 0x8000198
Loading section .rodata, size 0x1770 lma 0x80062a0
Loading section .data, size 0x4 lma 0x8007a10
Start address 0x80061ca, load size 31244
Transfer rate: 37 KB/sec, 892 bytes/write.
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /Users/ace/play/stm32/f411-leds-2/target/thumbv7em-none-eabihf/release/app
Running the default executable on the remote target failed; try "set remote exec-file"?

and

0x08006200 in Reset ()
(gdb) load
Loading section .vector_table, size 0x198 lma 0x8000000
Loading section .text, size 0x6100 lma 0x8000198
Loading section .rodata, size 0x1770 lma 0x80062a0
Loading section .data, size 0x4 lma 0x8007a10
Start address 0x80061ca, load size 31244
Transfer rate: 36 KB/sec, 892 bytes/write.
(gdb) s
Single stepping until exit from function Reset,
which has no line number information.
Could not read registers; remote failure reply 'EFF'

Anatol Ulrich

@spookyvision

I've found this issue - relevant? blacksphere/blackmagic#249

Anatol Ulrich

@spookyvision

ok, I should apparently just not use run or s. However c also causes problems: Program terminated with signal SIGLOST, Resource lost.

UweBonnes

@UweBonnes

Did you test the possible resolution I posted in that thread?

Anatol Ulrich

@spookyvision

@UweBonnes which is "try with your cortexm-branch"?

UweBonnes

@UweBonnes

https://github.com/UweBonnes/blackmagic/tree/cortexm_romtable

Please move over to discord, as Piotr worte last tim April 13

Anatol Ulrich

@spookyvision

thx! new to this chat, haven't consumed the entire backlog 🙃

Piotr Esden-Tempski

@esden

To keep that post "last thing in the chat, in hopes anyone coming in here sees it first"

Maybe a graphical banner would be better. :)

XtracT

@XtracT

Hello! Has someone managed to get the serial gdb server to work through ser2net? The device serial communication I have managed to make it work via tcp/ip, but not the debug port.

Piotr Esden-Tempski

@esden

@XtracT please read the last message before your post.

We are moved the chat from Gitter to Discord. Join us on Discord chat for all the fun and information about ongoing projects as well as future support of the BlackMagicProbe hardware and software. You can find the Discord link here: https://1bitsquared.com/pages/chat

dmitry-pozhidaev

@dmitry-pozhidaev

hi . i try debug stm32l011 and board dont detected

dmitry-pozhidaev

@dmitry-pozhidaev

"apropos word" to search for commands related to "word".
(gdb) set debug remote 1
(gdb) target extended-remote /dev/cu.usbmodemC1CDB7C1
Remote debugging using /dev/cu.usbmodemC1CDB7C1
Sending packet: $qSupported:multiprocess+;swbreak+;hwbreak+;qRelocInsn+;fork-events+;vfork-events+;exec-events+;vContSupported+;QThreadEvents+;no-resumed+#df...Ack
Packet received: PacketSize=400;qXfer:memory-map:read+;qXfer:features:read+
Packet qSupported (supported-packets) is supported
Sending packet: $vMustReplyEmpty#3a...Ack
Packet received:
Sending packet: $!#21...Ack
Packet received: OK
Sending packet: $Hg0#df...Ack
Packet received:
Sending packet: $qXfer:features:read:target.xml:0,3fb#46...Ack
Packet received: E01
Sending packet: $qTStatus#49...Ack
Packet received:
Packet qTStatus (trace-status) is NOT supported
Sending packet: $?#3f...Ack
Packet received: W00
(gdb) mon swdp_scan
Sending packet: $qRcmd,737764705f7363616e#3c...Ack
Packet received: O54617267657420766f6c746167653a20414253454e54210a
Target voltage: ABSENT!
Packet received: O53572d4450207363616e206661696c6564210a
SW-DP scan failed!
Packet received: E
(gdb)

how make black box for code insert here?

UweBonnes

@UweBonnes

Why don't you care to read at least one posting above?

Double check your setup and connections. When running with BMP native, enable power "mon tpwr ena". Report back on discord.

Piotr Esden-Tempski

@esden

@dmitry-pozhidaev See the last message before your post. ;)

We have moved the chat from Gitter to Discord. Join us on Discord chat for all the fun and information about ongoing projects as well as future support of the BlackMagicProbe hardware and software. You can find the Discord link here: https://1bitsquared.com/pages/chat

chriskuku

@chriskuku

I compiled blackmagic under macOS make PROBE_HOSTED=hosted HOSTED_BMP_ONLY=1 today in order to get a hosted blackmagic connecting to an STLINK-V2 attached to my computer. Compilation went through this time after recent patches.

But I'm wondering why I don't get any native binary to run on my host (macOS). Or do I misunderstand sth.?

Could someone give me the Discord discussion forum link? Or whereelse do blackmagic discussions take place ?

chriskuku

@chriskuku

@chriskuku Sorry, forget about my post. I made a typo (PROBE_HOSTED instead of PROBE_HOST)

chriskuku

@chriskuku

Where can I find information about the innards of blackmagic? Especially, what is negotiated between gdb and the debugee (target) ?

UweBonnes

@UweBonnes

The link is about 10 lines above your post. "You can find the Discord link here: https://1bitsquared.com/pages/chat"

Khalil Estell

@kammce:matrix.org

[m]

Is there a special command for using Serial/UART on the probe? I'm not seeing anything at the moment.

UweBonnes

@UweBonnes

Test with RX/TX shorted. Send something and you should get it back.For the native, enable TPWR to power the level shifters.

Where communities thrive

People

Repo info

Activity