The A1 & A2 has significant resources. If you know an HDL lanquage, verilog or vhdl, and have the time go for it. The slowest onchip clock for the 256 is 2.08 MHz and goes up from there, ±5%. So it has the speed. The A2 has twice the logic capacity. I recently did a fairly simple circuit and found the process a small learning curve. My career was FPGA and ASIC design so that went smoothy, but still took some time. Without that it would have been harder for sure. I followed the A1 & A2 https://tinyfpga.com/a-series-guide.html it was not too difficult
Just a heads up. I’ve had the TinyFPGA A1, A2, & PGRM on order from CrowdSupply since mid February. The A2s were shipped, they were in stock. The other items, A1 and PGRM, modules arrived mid March at CrowdSupply. COVID-19 took over from there. They claim to be shipping.
I’ve yet to receive the A1s or the PGRM. Plus I’ve not heard from crowdsupply in two weeks. Simply want to know what is up. My first inquiry took 4 weeks to get a reply.
I expect someday they will get in touch and just might even ship the parts. So be prepared to wait.
And the A1 mounts on a PCB which is arriving later this week. It may be time to design the FPGA onto my PCB. However, I need to determine how to program it and then cancel my order.