git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@219 35acf78f-673a-0410-8e92-d51de3d6d3f4

6 files changed, 178 insertions, 16 deletions

diff --git a/demos/AVR-ATmega128-GCC/Makefile b/demos/AVR-ATmega128-GCC/Makefile
index e2b5dd8cc..34c228691 100644
--- a/demos/AVR-ATmega128-GCC/Makefile
+++ b/demos/AVR-ATmega128-GCC/Makefile
@@ -87,7 +87,7 @@ SRC = ../../ports/AVR/chcore.c ../../ports/AVR/avr_serial.c \
       ../../src/chserial.c \

       ../../src/lib/evtimer.c \

       ../../test/test.c \

-      board.c main.c

+      board.c lcd.c main.c

 

 

 # List C++ source files here. (C dependencies are automatically generated.)

diff --git a/demos/AVR-ATmega128-GCC/board.h b/demos/AVR-ATmega128-GCC/board.h
index a29ee8664..97b9c684d 100644
--- a/demos/AVR-ATmega128-GCC/board.h
+++ b/demos/AVR-ATmega128-GCC/board.h
@@ -38,22 +38,22 @@
 #define VAL_PORTB 0xFF

 

 /*        D7  D6  D5  D4 PC3   E R/W  RS

- *        IN  IN  IN  IN  IN OUT OUT OUT

- * DDRC    0   0   0   0   0   1   1   1

+ *        OUT OUT OUT OUT IN OUT OUT OUT

+ * DDRC    1   1   1   1   0   1   1   1

  *        PU  PU  PU  PU  PU VAL VAL VAL

- * PORTC   1   1   1   1   1   0   0   0

+ * PORTC   0   0   0   0   1   0   0   0

  */

-#define VAL_DDRC  0x03

-#define VAL_PORTC 0xF8

+#define VAL_DDRC  0xF7

+#define VAL_PORTC 0x08

 

 /*       PD7 PD6 PD5 PD4 TXD RXD PD1 PD0

  *        IN  IN  IN  IN OUT  IN  IN  IN

  * DDRD    0   0   0   0   1   0   0   0

- *        PU  PU  PU  PU VAL HiZ HiZ HiZ

- * PORTD   1   1   1   1   1   0   0   0

+ *        PU  PU  PU  PU VAL HiZ  PU  PU

+ * PORTD   1   1   1   1   1   0   1   1

  */

 #define VAL_DDRD  0x08

-#define VAL_PORTD 0xF8

+#define VAL_PORTD 0xFB

 

 /*       PE7 PE6 BZ2 BZ2 PE3 PE2 PE1 PE0

  *        IN  IN OUT OUT  IN  IN OUT  IN

@@ -67,12 +67,12 @@
 /*       TDI TDO TMS TCK PF3 PF2 PF1 PF0

  *         x   x   x   x  IN  IN  IN  IN

  * DDRF    0   0   0   0   0   0   0   0

- *        PU  PU  PU  PU  PU  PU  PU  PU

- * PORTF   1   1   1   1   1   1   1   1

+ *         x   x   x   x  PU  PU  PU  PU

+ * PORTF   0   0   0   0   1   1   1   1

  *

  */

 #define VAL_DDRF  0x00

-#define VAL_PORTF 0xFF

+#define VAL_PORTF 0x0F

 

 /*         x   x   x   x   x PG2 PG1 PG0

  *         x   x   x   x   x  IN  IN  IN

@@ -99,6 +99,8 @@
 #define PORTC_44780_D5          (1 << 5)

 #define PORTC_44780_D6          (1 << 6)

 #define PORTC_44780_D7          (1 << 7)

+#define PORTC_44780_DATA        (PORTC_44780_D4 | PORTC_44780_D5 | \

+                                 PORTC_44780_D6 | PORTC_44780_D7)

 

 #define PORTE_BUZZ1             (1 << 4)

 #define PORTE_BUZZ2             (1 << 5)

diff --git a/demos/AVR-ATmega128-GCC/lcd.c b/demos/AVR-ATmega128-GCC/lcd.c
new file mode 100644
index 000000000..eed0c896e
--- /dev/null
+++ b/demos/AVR-ATmega128-GCC/lcd.c
@@ -0,0 +1,97 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+*/

+

+#include <ch.h>

+

+#include <avr/io.h>

+

+#include "board.h"

+#include "lcd.h"

+

+static void e_pulse(void) {

+  volatile uint8_t i;

+

+  PORTC |= PORTC_44780_E;

+  for (i = 0; i < ELOOPVALUE; i++);

+    ;

+  PORTC &= ~PORTC_44780_E;

+}

+

+static void wait_not_busy(void) {

+

+  chThdSleep(2);

+}

+

+/*

+ * 44780 soft reset procedure.

+ */

+void lcdInit(void) {

+

+  PORTC = (PORTC & ~(PORTC_44780_DATA | PORTC_44780_RS | PORTC_44780_E | PORTC_44780_RW)) |

+          (LCD_CMD_INIT8 & PORTC_44780_DATA);

+  chThdSleep(50);

+  e_pulse();

+  chThdSleep(10);

+  e_pulse();

+  chThdSleep(2);

+  e_pulse();

+  wait_not_busy();

+  PORTC = (PORTC & ~(PORTC_44780_DATA | PORTC_44780_RS | PORTC_44780_E | PORTC_44780_RW)) |

+          (LCD_CMD_INIT4 & PORTC_44780_DATA);

+  e_pulse();

+  lcdCmd(LCD_CMD_INIT4);

+  lcdCmd(LCD_SET_DM | LCD_DM_DISPLAY_ON);

+  lcdCmd(LCD_SET_INCREMENT_MODE);

+}

+

+/*

+ * Sends a command byte to the 44780.

+ */

+void lcdCmd(uint8_t cmd) {

+

+  wait_not_busy();

+  PORTC = (PORTC | PORTC_44780_DATA) & (cmd | (0x0F & ~PORTC_44780_RS));

+  e_pulse();

+  PORTC = (PORTC | PORTC_44780_DATA) & ((cmd << 4) | (0x0F & ~PORTC_44780_RS));

+  e_pulse();

+}

+

+/*

+ * Writes a char on the LCD at the current position.

+ */

+void lcdPutc(char c) {

+  uint8_t b;

+

+  wait_not_busy();

+  b = c | 0x0F;

+  PORTC = (PORTC | PORTC_44780_DATA | PORTC_44780_RS) & (c | 0x0F);

+  e_pulse();

+  PORTC = (PORTC | PORTC_44780_DATA | PORTC_44780_RS) & ((c << 4) | 0x0F);

+  e_pulse();

+}

+

+/*

+ * Writes a string on the LCD at an absolute address.

+ */

+void lcdPuts(uint8_t pos, char *p) {

+

+  lcdCmd(LCD_SET_DDRAM_ADDRESS | pos);

+  while (*p)

+    lcdPutc(*p++);

+}

diff --git a/demos/AVR-ATmega128-GCC/lcd.h b/demos/AVR-ATmega128-GCC/lcd.h
new file mode 100644
index 000000000..12ffd127e
--- /dev/null
+++ b/demos/AVR-ATmega128-GCC/lcd.h
@@ -0,0 +1,52 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+*/

+

+#ifndef _LCD_H_

+#define _LCD_H_

+

+#define ELOOPVALUE              10

+

+#define LCD_CLEAR               0x01

+

+#define LCD_RETURN_HOME         0x02

+

+#define LCD_SET_INCREMENT_MODE  0x06

+

+#define LCD_SET_DM              0x08

+#define LCD_DM_DISPLAY_ON       4

+#define LCD_DM_DISPLAY_OFF      0

+#define LCD_DM_CURSOR_ON        2

+#define LCD_DM_CURSOR_OFF       0

+#define LCD_DM_BLINK_ON         1

+#define LCD_DM_BLINK_OFF        0

+

+#define LCD_CMD_INIT4           0x28

+#define LCD_CMD_INIT8           0x38

+

+#define LCD_SET_DDRAM_ADDRESS   0x80

+

+#define LCD_LINE1               0

+#define LCD_LINE2               40

+

+void lcdInit(void);

+void lcdCmd(uint8_t cmd);

+void lcdPutc(char c);

+void lcdPuts(uint8_t pos, char *p);

+

+#endif /* _LCD_H_ */

diff --git a/demos/AVR-ATmega128-GCC/main.c b/demos/AVR-ATmega128-GCC/main.c
index 29a19701b..53fe21b2d 100644
--- a/demos/AVR-ATmega128-GCC/main.c
+++ b/demos/AVR-ATmega128-GCC/main.c
@@ -24,6 +24,7 @@
 #include <avr/io.h>

 

 #include "board.h"

+#include "lcd.h"

 

 void hwinit(void);

 

@@ -31,7 +32,8 @@ static WorkingArea(waThread1, 32);
 static msg_t Thread1(void *arg) {

 

   while (TRUE) {

-    PORTA ^= PORTA_RELAY;

+    if (!(PINA & PORTA_BUTTON2))

+      PORTA ^= PORTA_RELAY;

     chThdSleep(1000);

   }

   return 0;

@@ -40,7 +42,7 @@ static msg_t Thread1(void *arg) {
 static void TimerHandler(eventid_t id) {

   msg_t TestThread(void *p);

 

-  if (!(PORTA & PORTA_BUTTON1))

+  if (!(PINA & PORTA_BUTTON1))

     TestThread(&SER2);

 }

 

@@ -60,6 +62,15 @@ int main(int argc, char **argv) {
   chSysInit();

 

   /*

+   * This initialization requires the OS already active because it uses delay

+   * APIs inside.

+   */

+  lcdInit();

+  lcdCmd(LCD_CLEAR);

+  lcdPuts(LCD_LINE1, "   ChibiOS/RT   ");

+  lcdPuts(LCD_LINE2, "  Hello World!  ");

+

+  /*

    * Event Timer initialization.

    */

   evtInit(&evt, 500);                   /* Initializes an event timer object.   */

diff --git a/demos/AVR-ATmega128-GCC/readme.txt b/demos/AVR-ATmega128-GCC/readme.txt
index 1c6ab3c5d..7158463fb 100644
--- a/demos/AVR-ATmega128-GCC/readme.txt
+++ b/demos/AVR-ATmega128-GCC/readme.txt
@@ -8,8 +8,8 @@ The demo runs on an Olimex AVR-MT-128 board.
 

 ** The Demo **

 

-The demo currently just toggles the relay using a thread. It will be expanded

-in next releases.

+The demo currently just writes a hello world on the LCD and toggles the relay

+using a thread while button 2 is pressed.

 By pressing the button 1 the test suite is activated, output on serial port 2.

 

 ** Build Procedure **