Support for ICE40UP5K-SG48I?

Question

I asked this question .. and got no answers and down voted

The IceStorm website shows support for,

iCE40-UP5K-UWG30

The Single Wire Aggregation Demo / Development Board from Lattice uses a Different part (package diff only?),

ICE40UP5K-SG48I

Will IceStorm work with this part given appropriate changes to pin constraints?

Well, I thought this might be an easy albeit dumb question.

So, I guess I should re-pose the question ..

I'm rusty at FPGA's .. haven't done then for years ..

I did research first but I didn't include it as I thought the question was pretty basic.

• I looked for projects using IceStorm with the UP-5k and found none.

• I checked the ICEStorm site and found

Support for all package variants of LP1K, LP4K, LP8K and HX1K, HX4K, and HX8K.

The 5K is sadly missing .. This might be the answer to my question but I wasn't sure if the was dated.

• So I installed nextpr and ran,

./nextpnr-ice40 --up5k --package sg48

yielding,

Info: Program finished normally.

Which implies that the ICE40UP5K-SG48I will work ..

• Then for fun I ran,

locate -i sg48

to hopefully find more information and got,

icestorm/icefuzz/pinloc/pinloc-u4k-sg48.sh

So, does this imply it's only for the u4k and not for the u5k .. ?

Now I'm even more confused ..

I'm hoping to get an answer to the question to save myself a week which might end in a dry hole ..

Tom

Answer 1

Yes, the icestorm toolchain supports the iCE40-UP5K-SG48 device.

From the supported devices list on the icestrom website:

Part	Package	Pin Spacing	I/Os	nextpnr opts	arachne-pnr opts	icetime opts
iCE40-UP5K-SG48	48-pin QFN (7 x 7 mm)	0.50 mm	39	-up5k –package sg48	-d 5k -P sg48	-d up5k

Furthermore, this device is soldered onto the iCEBreaker FPGA Board. Thus, the iCEBreaker examples might be a useful reference for constraint files and tool scripts.