X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=converter%2Fpc98_usb%2FREADME;h=4c35ed321264a86d4f19288282248974e2f481e5;hb=8bb1c010fa075d6971389db8ebab89ac1b05ca15;hp=6da54178bedfb936a5c4a64050ab056be41b3b0f;hpb=effdef418747406b81e3b4545fa3e911d0931d2f;p=max%2Ftmk_keyboard.git

diff --git a/converter/pc98_usb/README b/converter/pc98_usb/README
index 6da54178..4c35ed32 100644
--- a/converter/pc98_usb/README
+++ b/converter/pc98_usb/README
@@ -42,7 +42,7 @@ Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
 
 Build Firmware
 --------------
-Just use 'make' to bild firmware
+Just use 'make' to bild firmware for TMK PC98 converter.
 
     $ make clean
     $ make
@@ -53,6 +53,12 @@ To flash firmware
 
 then push button on converter to flash firmware.
 
+If you are using ATMega32u4 based board instead of premade TMK PC98 converter(ATMega32u2) use following commands.
+
+    $ make -f Makefile.32u4 clean
+    $ make -f Makefile.32u4
+    $ make -f Makefile.32u4 dfu
+
 
 
 PC98 Scan Codes
@@ -141,6 +147,7 @@ Its scan code map is very different from standard types. This is not tested.
 Other PC98 converter projects and resource
 ------------------------------------------
 PC-9800シリーズ テクニカルデータブック HARDWARE 編 1993年 p139, p343
+https://archive.org/stream/PC9800TechnicalDataBookHARDWARE1993/PC-9800TechnicalDataBook_HARDWARE1993#page/n151
 https://archive.org/stream/PC9800TechnicalDataBookHARDWARE1993/PC-9800TechnicalDataBook_HARDWARE1993#page/n355
 
 PC98 to USB
@@ -152,3 +159,32 @@ http://www.tsp.ne.jp/~sawada/mago/src/gka98at.asm
 
 scan code:
 http://ixsvr.dyndns.org/usb2pc98
+
+
+
+NOTES
+-----
+### Tested on
+- PC-9801V
+- DIGITAL WAVE Dboard
+
+
+### RDY
+PC98 host keeps RDY line high to prevent keyboard from sending data while processing.
+
+https://archive.org/stream/PC9800TechnicalDataBookHARDWARE1993/PC-9800TechnicalDataBook_HARDWARE1993#page/n359
+
+PC-9801V keyboard requires RDY pulse as acknowledgement from host, it doesn't next data without this. Dboard doens't need this.
+
+
+### Inhibit key repeating
+The command(9Ch, 70h) works with Raku Raku keybaord but not with Dboard.
+
+### LED indicater
+Dboard has LEDs but replys with FA to 9D command but ignore it. The LED indicates just its internal states. Dboard replays with FA to 9C command but it doesn't seem to understand repeat setting.
+
+PC-9801V has no LEDs and doesn't accept LED command. It replys with 9D to 9D command. PC-9801V doesn't accept repeat setting command. It replys with 9C to 9C command.
+
+
+## PC-9801V
+Note that you have to connect this keyboard with converter before plug in USB port. It seems this keyboard requires for host to send any command before starting to send scan code.