updated README.md to the current state

README.md

@@ -3,53 +3,23 @@ SATA controller for x393 camera
 Board: Zynq 7z30
 FPGA: Kintex-7
 
+# Install VDT plugin - see instructions on https://github.com/Elphel/vdt-plugin
+
 # Clone
 
-git clone https://github.com/Elphel/x393_sata **--recursive**
+git clone https://github.com/Elphel/x393_sata
 
 # Working on remote PC
 
 1. sudo apt-get install ssh-askpass  
 2. ssh-copy-id user@ip  
  
-# Swtich between synthesis & simulation
-See update below
-
-Edit *.editor_defines*:
-* simulation:
-  `define SIMULATION 1
-  `define CHECKERS_ENABLED 1
-  `define OPEN_SOURCE_ONLY 1
-  `define PRELOAD_BRAMS
-* synthesis:
-  //`define SIMULATION 1
-  //`define CHECKERS_ENABLED 1
-  //`define OPEN_SOURCE_ONLY 1
-  `define PRELOAD_BRAMS
-
-Refresh the project and update hierarchy (or rescan)
-
-**Update:** Not needed anymore with updated VDT plugin - it now calculates closure per-tool and per-top file defines,
-so *.editor_defines* is now just for the editor (which branches to parse). No refresh/rescan is required.
-  
 # Simulation
-* Get unisims library - refresh project files otherwise nothing will work  
+* Xilinx unisims license prevents it from re-distribution, so you need to get these files from 
+* VDT has a tool (Vivado Tools -> Vivado utilities -> Copy Xilinx Vivado primitives library to the local project) that does this
+* Refresh project (Select it and press F5 key), the files will be re-scanned   
 
 # Synthesis
 * Add constraints file through Synthesis parameters
 * Bitstream Tool parameters - check *Force(overwrite)*
  
-# Current step in try2 branch:
-Not yet tested in hardware, started AHCI implementation (currently coded registers and DMA engine, that processes command table/PRD list,
-Transfers data between clock domains, re-aligns between WORD size granularity, HBA 32-bit data and 64-bit AXI accesses.
-# Current step in main branch:
-Testing basic functionallity of a host.  
-Trying out pio access.  
-Fullfilling device-side drivers and monitors via tasks.  
-Tests are mostly manual, relied on a common sense and waveforms instpection. Still, complatible both with gtx-gpl and unisims/gtx
-# Going to do afterwards:
-Test dma functionallity of the host.  
-Make cocotb testbench - gtx-gpl only - random payload high-level verification testing purposes.  
-Create a base of regression tests, containing lower-level tests - both gtx-gpl and unisims/gtx.  
-Improve an implementation of DMA control module.  
-Finally decide what to do with a driver and modify application level (actally, write it from scrap) correspodning to driver's interfaces.