From eb776c1b7918f320b717cedfd8957f55e53c5adf Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Fri, 22 Feb 2013 15:48:35 +0900
Subject: Quick Fix: read scan code from PC98

---
 converter/pc98_usb/config.h | 9 ++++++---
 converter/pc98_usb/matrix.c | 6 ++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'converter/pc98_usb')

diff --git a/converter/pc98_usb/config.h b/converter/pc98_usb/config.h
index 8bcaa26db9..6f9f8fc3cf 100644
--- a/converter/pc98_usb/config.h
+++ b/converter/pc98_usb/config.h
@@ -55,7 +55,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #define SERIAL_BAUD 19200
 #define SERIAL_PARITY_ODD
-#define SERIAL_BIT_ORDER_MSB
+#define SERIAL_BIT_ORDER_LSB
 
 #define SERIAL_RXD_DDR  DDRD
 #define SERIAL_RXD_PORT PORTD
@@ -67,7 +67,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     SERIAL_RXD_DDR &= ~(1<<SERIAL_RXD_BIT);     \
     SERIAL_RXD_PORT |= (1<<SERIAL_RXD_BIT);     \
     /* enable interrupt: INT2(rising edge) */   \
-    EICRA |= ((1<<ISC21)|(1<<ISC20));           \
+    /*EICRA |= ((1<<ISC21)|(1<<ISC20));*/           \
+    /* enable interrupt: INT2(falling edge) */  \
+    EICRA |= ((1<<ISC21)|(0<<ISC20));           \
     EIMSK |= (1<<INT2);                         \
 } while (0)
 #define SERIAL_RXD_INT_ENTER()
@@ -75,7 +77,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     /* clear interrupt  flag */     \
     EIFR = (1<<INTF2);              \
 } while (0)
-#define SERIAL_RXD_READ()    (~SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
+//#define SERIAL_RXD_READ()    (~SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
+#define SERIAL_RXD_READ()    ((SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT)))
 
 #define SERIAL_TXD_DDR  DDRD
 #define SERIAL_TXD_PORT PORTD
diff --git a/converter/pc98_usb/matrix.c b/converter/pc98_usb/matrix.c
index b3c11dc210..ef2bc38186 100644
--- a/converter/pc98_usb/matrix.c
+++ b/converter/pc98_usb/matrix.c
@@ -73,6 +73,8 @@ void matrix_init(void)
     PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
     PC98_RTY_PORT |= (1<<PC98_RTY_BIT);
 
+    DDRD |= 1<<7;
+
 
     serial_init();
 
@@ -83,6 +85,9 @@ void matrix_init(void)
     _delay_us(13);
     PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
 
+    // PC98 ready
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+
     // initialize matrix state: all keys off
     for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
 
@@ -96,6 +101,7 @@ uint8_t matrix_scan(void)
 
     uint8_t code;
     PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    _delay_us(30);
     code = serial_recv();
     PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
     if (!code) return 0;
-- 
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