test/test_hd44780.c

   1 /* Author: Domen Puncer <domen@cba.si>.  License: WTFPL, see file LICENSE */
   2 #include <stdio.h>
   3 #include <sched.h>
   4
   5 #ifdef BOARD_ITLPC2138
   6 #include <mach/lpc21xx_gpio.h>
   7 #elif defined BOARD_STM32F103X4_MINE && defined CONFIG_LCDTEST
   8 #include <mach/stm32_gpio.h>
   9 #endif
  10
  11 #include <drivers/hd44780.h>
  12
  13 void test_hd44780_func(u32 arg)
  14 {
  15         int i = 0;
  16         struct hd44780_data lcd;
  17 #ifdef BOARD_ITLPC2138
  18         lcd.pins.rs = GPIO_0_20;
  19         lcd.pins.rw = GPIO_0_22;
  20         lcd.pins.e = GPIO_0_21;
  21         lcd.pins.d4 = GPIO_0_16;
  22         lcd.pins.d5 = GPIO_0_17;
  23         lcd.pins.d6 = GPIO_0_18;
  24         lcd.pins.d7 = GPIO_0_19;
  25         lcd.Te = 1;
  26         lcd.caps = HD44780_CAPS_2LINES;
  27 #elif defined BOARD_STM32F103X4_MINE && defined CONFIG_LCDTEST
  28         lcd.pins.rs = GPIO_PB5;
  29         lcd.pins.rw = GPIO_PA12;
  30         lcd.pins.e = GPIO_PA11;
  31         lcd.pins.d4 = GPIO_PB15;
  32         lcd.pins.d5 = GPIO_PB14;
  33         lcd.pins.d6 = GPIO_PB13;
  34         lcd.pins.d7 = GPIO_PB12;
  35         lcd.Te = 1;
  36         lcd.caps = HD44780_CAPS_2LINES;
  37 #endif
  38
  39         hd44780_driver.init(&lcd);
  40         hd44780_driver.onoff(&lcd, HD44780_ONOFF_DISPLAY_ON);
  41         hd44780_driver.print(&lcd, "yay, it works");
  42
  43         msleep(2000);
  44         hd44780_driver.clear(&lcd);
  45
  46         while (1) {
  47                 char buf[2];
  48
  49                 hd44780_driver.set_position(&lcd, (i<16?HD44780_LINE_OFFSET:0) + i%16);
  50                 sprintf(buf, "%X", i%16);
  51                 hd44780_driver.print(&lcd, buf);
  52
  53                 hd44780_driver.set_position(&lcd, (i>=16?HD44780_LINE_OFFSET:0) + i%16);
  54                 hd44780_driver.print(&lcd, " ");
  55
  56                 msleep(1000);
  57                 i++;
  58                 if (i == 32)
  59                         i = 0;
  60         }
  61 }