update readme; add images gallery

README.md

@@ -1,39 +1,72 @@
 ## MIST.1010
 10x10cm PCB variant of [MIST FPGA](https://github.com/mist-devel/mist-board/wiki) project
 
-[![photo-pcb](images/revA1.pcb.small.webp)](images/revA1.pcb.webp?raw=true)
+[![photo](images/thumb.rev.C.front.webp)](images/README.md)
 
-[![photo-front](images/revA1.front.small.webp)](images/revA1.front.webp?raw=true)
+[![photo](images/thumb.rev.C.side.webp)](images/README.md)
 
-[![photo-back](images/revA1.back.small.webp)](images/revA1.back.webp?raw=true)
+[[More photos]](images/README.md)
 
 Tech specs:
 - EP3C25E144 FPGA
-- 32M of SDRAM
+- 32/64Mb SDRAM
-- VGA video output
+- VGA/RGB video output
-- PAL video + audio output via 3.5 jack connector (raspberry-pi compatible pinout)
+- Composite video + audio output via 3.5 jack connector (raspberry-pi compatible pinout)
 - 4xUSB ports for keyboard, mouse and joysticks
 - 2xDB-9 ports for Amiga mouse and joysticks
 - SD/microSD card slot
 - RTC (clock) with battery
-- Tape input
+- Tape input / output
-- ESP-01 WiFi module
+- ESP8266 WiFi module
-- MicroUSB power supply
+- MIDI input and output (starting from rev.C)
+- Type C (starting from rev.D) or MicroUSB power supply
 - Board optimized for G738 and G706 cases
 
 Some random photos: [link](https://cloud.err200.net/index.php/s/73TR85tYZkMm8Ax?path=%2Fmist1010)
 
-### Current status
+### Changelog
 * Rev.A - first revision. Please note the [errata](pcb/rev.A/ERRATA.txt).
 * Rev.A1:
     * fixed all rev.A issues
     * LM3940IS-3.3 replaced to NCP1117-3.3
     * sound output circuit has been replaced with the original one from the MIST 1.3 circuit
     * C39, C40, C80 tantalum capacitors has been replaced by aluminum electrolytic capacitors
+    * added ARM's "erase" testpoint
     * removed useless internal speaker
 * Rev.A2:
 	* C41, C68, C69 10uf ceramic capacitors has been replaced with 22uf tantalum
-    * added C74 ceramic capacitor near esp-01 module
+    * added C74 ceramic capacitor near ESP-01 module
+* Rev.B:
+    * added ESP-12E/F footprint (ESP-01 is still an option)
+    * added MIDI input and output
+    * removed U11 - AD724 encoder
+    * added resistors-based CVBS (Y+C) video circuit
+    * added JP4 solder jumper to disconnect CVBS circuit from 3.5mm jack
+    * added U16 buffer with dedicated power source U17 for audio 1-bit DAC
+    * added USB 2.54mm header
+    * tuned SDRAM traces lenght for better match with MIST v1.3 PCB
+    * changed U6 (attiny) footprint from DIP to SOIC
+    * changed Y1 and Y2 footprints from THT to SMD
+    * changed 1117-3.3 footprint from TO-252-2 to SOT-223-3
+    * added U12 dedicated +3.3V power source for SD card and WiFi
+    * 3mm front leds replaced by 5mm
+    * R38 (VGA's +5V 0Ω resistor) has been replaced by solder jumper
+    * changed tape header pinout
+    * pcb corners are rounded now
+    * experimental reset circuit based on MAX809
+    * various changes in board layout
+* Rev.C:
+    * used USB Type C instead of Micro USB
+    * PJ-320 3.5mm jack replaced by PJ-322
+    * added solder jumper to select 3.5mm jack CVBS pinout
+    * improved power distribution for FPGA chip
+    * removed U16 buffer for DAC as it didn't bring any benefits
+    * marked C27 and C28 as DNP
+    * reverted to old reset circuit
+    * various minor changes in board layout
+* Rev.C1:
+    * changed R47 from 220Ω to 1kΩ to reduce power led bightness
+    * slightly moved C87 and C89
 
 ### Useful links
 * MIST wiki: [link](https://github.com/mist-devel/mist-board/wiki)

images/README.md

@@ -0,0 +1,23 @@
+# Gallery
+
+## Revision C
+[![photo](thumb.rev.C.front.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.C.front.webp)
+[![photo](thumb.rev.C.back.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.C.back.webp)
+
+[![photo](thumb.rev.C.top.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.C.top.webp)
+[![photo](thumb.rev.C.side.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.C.side.webp)
+
+## Revision B
+[![photo](thumb.rev.B.front.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.B.front.webp)
+[![photo](thumb.rev.B.back.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.B.back.webp)
+
+[![photo](thumb.rev.B.top.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.B.top.webp)
+[![photo](thumb.rev.B.side.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.B.side.webp)
+
+
+## Revision A
+[![photo](thumb.rev.A1.front.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.A1.front.webp)
+
+[![photo](thumb.rev.A1.back.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.A1.back.webp)
+
+[![photo](thumb.rev.A1.top.webp)](https://raw.githubusercontent.com/UzixLS/mist1010-board/refs/heads/master/images/rev.A1.top.webp)