Has anyone here actually used this part?
It is a Cortex M4 with a DSP engine to implement power line communications algorithms. I am tasked with upgrading an existing system (ancient PIC MCU + gate array). This chip appears to have the "junk in the trunk" at a power consumption that is acceptable (we need to be below 200mW). We are *not* implementing and industry standard PLC protocol. The signaling has already be developed, I am just looked for the the lowest cost way of doing it to fit within the power envelope.
Side Note:
The original prototyping was with a Xilinx Artix 7. The S7 would be a good fit as well but Xilinx has nothing sub $10. The low cost Spartan 7 was essential a lie. I can *almost* get it done with a lattice ICE40 UltraPro.
At this point I am just trying to get a CPU reference manual with register documentation. ST has datasheet posted but it has nothing that I could use to determine if it has all the right stuff I need.
I am prototyping with an i.MX RT1052 and it has the CPU horsepower to do everything I need but I ran across this device and it looks like a really good fit.
I have been attempting to get data through a local sales office but they don't seem very helpful. I have asked 3 times for a "real" manual and pricing data and I swear they ignore everything I ask.
I sure hope this isn't par for the course with ST Micro. From the marketing material, it looks to be exactly what I need but getting real information seems difficult.