Hi Alan, yes, that's ispVM.
The original from Lattice can be found in the installation folder of
Lattice Diamond SW.
usr/local/programmer/diamond/3.12/embedded_source/vmembedded/sourcecode/ispvme/
That is one way for Lattice!
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Ingenieurbüro-Filgis
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Hi Simon,
ispVM is pure C:
https://github.com/ganehag/br-ts7500/blob/master/ts7500utils/ispvm.c
Could be easier to get working on NuttX than openFPGALoader, although
to latter will open doors to many vendors!
BR,
Alan
On 7/13/23, Simon Filgis wrote:
> LFE5U-25F-8BG381C
>
> with attached SPI F
On 7/13/23, Nathan Hartman wrote:
> On Thu, Jul 13, 2023 at 12:24 PM Gregory Nutt wrote:
>>
>>
>> > Maybe you could that a look in the minnsh PoC, it was running on MCU
>> > with less than 16KB Flash and 8KB RAM. As you can see in the image it
>> > is using less than 2KB RAM:
>>
>> To get to the
LFE5U-25F-8BG381C
with attached SPI Flash: AT25SF161B-MHB
Lattice Diamond Deployment tool generates SVF or VME files...
I'm just wondering if I should go for something more generic than the
Lattice ispVM (quite old piece of code)
Simon
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Ingenieurbüro-
On Thu, Jul 13, 2023 at 12:24 PM Gregory Nutt wrote:
>
>
> > Maybe you could that a look in the minnsh PoC, it was running on MCU
> > with less than 16KB Flash and 8KB RAM. As you can see in the image it
> > is using less than 2KB RAM:
>
> To get to the minimal size, that configuration also depend
Am 13.07.2023 um 18:52 schrieb Simon Filgis:
Indeed the ICE fpgas are loaded by SPI. Interesting.
But mine is loaded by JTAG.
What FPGA type do you use EXACTLY?
Frank-Christian
Resending without attachment...
Simon Filgis schrieb am Do., 13. Juli
2023, 18:38:
> Hi Alan,
>
> Indeed the ICE fpgas are loaded by SPI. Interesting.
>
> But mine is loaded by JTAG.
>
> Every FPGA vendor has a "player" to bitbang their svf out of the
> microcontroller.
>
> OpenFPGALoader is the
Maybe you could that a look in the minnsh PoC, it was running on MCU
with less than 16KB Flash and 8KB RAM. As you can see in the image it
is using less than 2KB RAM:
To get to the minimal size, that configuration also depended on the
ability to disabled file system support (and, in the long
Hi Nathan,
On 7/13/23, Nathan Hartman wrote:
> Hi Lup,
>
> Excellent article, as always!
>
> On Thu, Jul 13, 2023 at 10:38 AM Alan C. Assis wrote:
>> In NuttX case it is easier because we can do it without the bootloader!
>
> There was a recent discussion about using a minimal build of NuttX
> i
Hi Simon,
I didn't look the code, but openFPGALoader is implemented in C++ and I
don't know if they are using features that don't fit well to
microcontrollers.
So, the only way to confirming if it works is trying to compile and run it.
If you only need to use FPGAs from Lattice, maybe you can tr
Sorry, I have a typo in the subject.
Not FLASHLoader but FPGALoader.
https://github.com/trabucayre/openFPGALoader
The Segger Flashloader has been used by me already. Funny piece of software
but not for FPGA...
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sent by mobile phone
Xiang Xiao s
If you are using JLINK, you may implement a general flash programer by
reusing NuttX flash driver:
https://wiki.segger.com/SEGGER_Flash_Loader
On Thu, Jul 13, 2023 at 10:51 PM Simon Filgis <
si...@ingenieurbuero-filgis.de> wrote:
> Dear all,
>
> I need to load an FPGA bitstream via JTAG bitbang.
Hi Lup,
Excellent article, as always!
On Thu, Jul 13, 2023 at 10:38 AM Alan C. Assis wrote:
> In NuttX case it is easier because we can do it without the bootloader!
There was a recent discussion about using a minimal build of NuttX
itself as a bootloader, which would load a more full-featured
Dear all,
I need to load an FPGA bitstream via JTAG bitbang.
In my case the straight way would be to use the lattice embeddedvm (ispVM)
but I'm wondering if there is something more generic out there. Like
OpenFPGALoader.
What do you think?
Regards,
Simon
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Ingenieurbüro-Filgis
USt-IdNr.: DE3
Hi Lup,
That is very nice! I never tested TFTP on NuttX, but I used to boot
Linux/uCLinux using it, downloading the kernel image inside the
bootloader:
https://acassis.wordpress.com/2009/03/19/solved-dbug-bootloader-network-problem/
In NuttX case it is easier because we can do it without the boo
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