Quote:
Originally Posted by AleMaxx
To my knowledge there is no MMU (and Im pretty sure). There is a remapping-feature that allows switching between boot ROM and SRAM and you can mark parts of the memory-map to be non-cacheable but this surely has nothing to do with the features a MMU provides.
Concerning TV out on rk2705, the chip has an RGB interface (RGB+Sync signals) which is primarily intended for LCDs but you could of course hook up a DAC or PAL/NTSC encoder to this and get a TV signal. Btw, here is a spec-sheet for the rk2705: http://www.szxizhuo.com/UploadFiles/...8105248185.pdf. |
That's the data sheet I was looking at.
W.r.t. the MMU, I hoped the rk2705, being newer than the rk2706, would support virtual memory. But still a superscalar (4-issue) DSP with 8-stage pipeline and general-purpose 32-bit instructions is slightly intriguing (assuming it hasn't been lobotomized by Rockchip and can function on its own).
If someone familiar with rk2705 firmware can suggest a small piece of DSP code, I'll try to find some ZSP G2 instructions, perhaps hack a simple (open source) disassembler because there doesn't seem to be one.