Updated readme, added TODO

README.md

@@ -8,10 +8,11 @@ radio astronomy observations, such as live or recorded pulsar observations and
 Design and realization by Paul Boven (p.boven@xs4all.nl).
 (c) Paul Boven, released under the GPLv2.
 
-## Current status: Will not even compile, work in progress.
-
 This repository will contain the VHDL sources and helper scripts, PCB design files, and photographs.
 
+## Current status: first firmware (2048 bins) succesfully synthesized
+Haven't made a bitstream yet, or tested it on the hardware.
+
 ### Specifications:
 * 70 MS/s, real
 * 10 bits
@@ -25,4 +26,20 @@ This repository will contain the VHDL sources and helper scripts, PCB design fil
  * Phyter V Ethernet Phy
 * AD9218 ADC (2x 10 bits 65 MHz)
 
-
+### Requirements:
+* Xilinx ISE 14.7 (WebPack)
+* Ubuntu 16.04 LTS
+* Make (project is controlled through a Makefile, not ISE)
+
+### TODO:
+* Add the other existing firmwares
+ * Pulsar mode (256 bins)
+ * Raw mode (70MS/s * 10 bits)
+* Convert all firmwares to use 1Gb/s Ethernet
+* Update and merge current firmwares, single Makefile, code re-use
+* Add WOLA to the FFT-baased backends
+* New firmwares:
+ * Digital Down Converter (DDC) for use with GnuRadio and SETI@home
+ * GPS cross correlation or squaring receiver (for cross-scans)
+* Run from 10MHz clock instead of 140 MHz?
+* Absolute time or PPS input