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Comment by ๐Ÿ drh3xx

Re: "Nano 1K hidden RISC-V"

In: s/FPGA

Sounds interesting. What have you got planned for it at the mo?

๐Ÿ drh3xx

Jul 10 ยท 7 weeks ago

2 Later Comments โ†“

๐Ÿš€ stack [OP/mod] ยท Jul 10 at 17:13:

@drh3xx: as for the RISC-V SOC, I found a thread on how to flash it on some devices (not sure about 1K), and it involves some bricking risk...I think Sipeed sells some low-cost SOC boards with no FPGAs.

As for the Nano1K board, mostly scratching an itch - it's been about a decade since I hacked up an Apple ][ in a Xess XC3S1000 board and a bunch of strange FPGA tools. I wanted to make sure I at least still remember Verilog.

And doing some hardware makes a good break from software. There is a finiteness about it. And it's lower down (although there is plenty of room to go down from verilog -- that's why I usually instantiate stuff even in verilog)...

๐Ÿš€ stack [OP/mod] ยท Jul 10 at 17:21:

The Maix board with just the BL702 RISC-V chip is around $7 on Aliexpress (as opposed to $11 for the Nano1K with the FPGA)

I wish the protectionist a-holes would stop it with the stupid tariffs on China. It's not like any US company is going to sell $3.00 boards! Sadly no matter who gets elected, things will not get better here.

Original Post

๐ŸŒ’ s/FPGA

Nano 1K hidden RISC-V โ€” So this $10 FPGA devboard has what I thought was an FT2232D chip for USB, but no! It is actually a BL702, Sipeed's 'debug chip', a RISC-V SOC... BL702 is highly integrated BLE and Zigbee combo chipset for IoT applications, contains 32-bit RISC-V CPU with FPU, frequency up to 144MHz, with 132KB RAM and 192 KB ROM, 1Kb eFuse, 512KB embedded Flash, USB2.0 FS device interface, and many other features. I suppose it's not as weird as, say, an ARM7 SOC on every SD card... I...

๐Ÿ’ฌ stack [mod] ยท 3 comments ยท Jul 10 ยท 7 weeks ago