v4.00

uSDR-Pico reloaded...

README.md

@@ -1,4 +1,4 @@
-*Note*: I'm working on V4.0 right now, with some difference in hardware:  
+*Note*: The new V4.00 is available in DRAFT:  
 - Integrated audio on the CPU board  
 - Moved VFO to Mixer board  
 - Applied different way to derive FST3253 clocks, no longer dependent on 90 deg phasing of VFO  
@@ -11,6 +11,13 @@
 - No more RS232, replaced with USB interface which can also be used for programming  
 - Recalculated all filters  
 
+The schematics are now available in KiCAD format, so open for all to adapt. In the package I included a library with some dedicated definitions.  
+
+Still to be done:  
+- All software updates, this will take place after assembly of the hardware  
+- Update all documentation to be consistent with the actual implementation  
+
+
 # uSDR-pico
 This Git repository contains a Micro-SDR implementation, based on a RP2040 Pi Pico.  
 
@@ -31,10 +38,7 @@ The Pico controls an Si5351A clock module to obtain the switching clock for the
 The display is a standard 16x2 LCD, but with an I2C interface. The display is connected through the other I2C channel, as well as the bus expanders for controlling the various relays.
 
 ## Open issues: 
-- [ ] write FFT TX function
-- [ ] improve on TX audio quality 
-- [ ] implement better AGC 
-- [ ] improve FFT filtering  
+- [ ] all SW to be improved and tested on new v4 HW   
 
 
 ## Installing and using the SDK for Windows: