Debugging support

[valeros]

Hi @sathya281! Could you please describe (or ask someone who knows) how you debug your boards at the moment? What software, debug probe, target do you use (for example artix7_100t board)?

[ghost]

Hi,

First of all thanks for the platform support.

Hope below answer helps you:

Board : artix7_100t and artix7_35t
debug probe: ftdi interface connected through riscv openocd
Debugger: riscv gnu GDB, 32 bit / 64 bit

For openocd, we want to use below commit. This has ftdi support.
https://github.com/riscv/riscv-openocd/tree/fd9c54b1feea13f6846c69fc9e1e8dc3a7879717

regards,
Sathya

[valeros]

Could you post here a simple command for openocd with all arguments that you are using?

[ghost]

command -
sudo openocd -f spike.cfg

contents of spike.cfg
#interface_list
interface jlink
debug_level 2

#interface remote_bitbang
#interface usb_blaster

#remote_bitbang_host localhost
#remote_bitbang_port 10000

set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x100039d3
#jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x10e31913

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME

adapter_khz 900
#$_TARGETNAME configure -event reset-start { adapter_khz 200 }
#riscv set_prefer_sba on
gdb_report_data_abort enable

init
halt

[ghost]

This one is for ftdi stuff
command -
sudo openocd -f spike.cfg

contents of spike.cfg
debug_level 1
adapter_khz 8000
interface jlink
gdb_port 3333
telnet_port 4444
tcl_port 6666

set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x100039D3

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME

gdb_report_data_abort enable

riscv set_prefer_sba on

init

[valeros]

In both scripts, jlink is specified as the interface: interface jlink. Is that right?

[ghost]

Hey sorry, Thanks for pointing it out.

I have listed below the config files for both the debug probe.

1. FTDI support

sudo openocd -f ftdi_spike.cfg
ftdi_spike.cfg

2. JLINK support

sudo openocd -f jlink_spike.cfg
jlink_spike.cfg

[valeros]

Any plans for adding those scripts to the official shakti-sdk repository? At the moment there is only one spike.cfg for jlink debug probe.

[ghost]

We are working on it. In 24hrs, we will add.

…

On Wed, 10 Jul, 2019, 6:03 PM Valerii Koval, ***@***.***> wrote: Any plans for adding those scripts to the official shakti-sdk repository? At the moment there is only one spike.cfg for jlink debug probe. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1?email_source=notifications&email_token=ABEPUPM7FK3Z4JXAR2ZAKR3P6XJKDA5CNFSM4H7HM7NKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODZTJ4EI#issuecomment-510041617>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABEPUPKYIGRMQXYO4JRLTH3P6XJKDANCNFSM4H7HM7NA> .

[ghost]

Hi,
you can check now. The SDK is updated.

[ghost]

I went through the code. We need to change lots of data in JSON file

[valeros]

Sure thing, feel free to submit a PR.

[johnnavaj]

@valeros how do i pull /use this in pio ? i don't see any entry added for the boards mentioned.

[valeros]

You need to install this platform from the git repository, in case you are using the command line version:

pio platform install https://github.com/platformio/platform-shakti.git

or PIO Home -> Platforms -> Advanced Installation in the IDE

[johnnavaj]

Yes i was able to load the platform into the ide , as part of the board entries i don't find the boards as part of shakti-platform.

[valeros]

I'm not sure I understand your question. Can you please describe in detail what you're trying to achieve?

[johnnavaj]

I was trying to understand how to add the board entry (ie), when you create a project it should be able to point to the designated board which we have support for eg - artix7_100t or artix7_35t also along with the SDK.

So i discussed with @sathya281 , i will make the changes and submit a PR soon.