My Marlin configs for Fabrikator Mini and CTC i3 Pro B
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ultralcd_st7920_u8glib_rrd.h 6.6KB

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  1. /**
  2. * Marlin 3D Printer Firmware
  3. * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  4. *
  5. * Based on Sprinter and grbl.
  6. * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
  7. *
  8. * This program is free software: you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation, either version 3 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  20. *
  21. */
  22. #ifndef ULCDST7920_H
  23. #define ULCDST7920_H
  24. #include "Marlin.h"
  25. #if ENABLED(U8GLIB_ST7920)
  26. #define ST7920_CLK_PIN LCD_PINS_D4
  27. #define ST7920_DAT_PIN LCD_PINS_ENABLE
  28. #define ST7920_CS_PIN LCD_PINS_RS
  29. //#define PAGE_HEIGHT 8 //128 byte framebuffer
  30. #define PAGE_HEIGHT 16 //256 byte framebuffer
  31. //#define PAGE_HEIGHT 32 //512 byte framebuffer
  32. #define LCD_PIXEL_WIDTH 128
  33. #define LCD_PIXEL_HEIGHT 64
  34. #include <U8glib.h>
  35. //set optimization so ARDUINO optimizes this file
  36. #pragma GCC optimize (3)
  37. #define DELAY_0_NOP NOOP
  38. #define DELAY_1_NOP __asm__("nop\n\t")
  39. #define DELAY_2_NOP __asm__("nop\n\t" "nop\n\t")
  40. #define DELAY_3_NOP __asm__("nop\n\t" "nop\n\t" "nop\n\t")
  41. #define DELAY_4_NOP __asm__("nop\n\t" "nop\n\t" "nop\n\t" "nop\n\t")
  42. // If you want you can define your own set of delays in Configuration.h
  43. //#define ST7920_DELAY_1 DELAY_0_NOP
  44. //#define ST7920_DELAY_2 DELAY_0_NOP
  45. //#define ST7920_DELAY_3 DELAY_0_NOP
  46. #if F_CPU >= 20000000
  47. #define CPU_ST7920_DELAY_1 DELAY_0_NOP
  48. #define CPU_ST7920_DELAY_2 DELAY_0_NOP
  49. #define CPU_ST7920_DELAY_3 DELAY_1_NOP
  50. #elif (MOTHERBOARD == BOARD_3DRAG) || (MOTHERBOARD == BOARD_K8200) || (MOTHERBOARD == BOARD_K8400)
  51. #define CPU_ST7920_DELAY_1 DELAY_0_NOP
  52. #define CPU_ST7920_DELAY_2 DELAY_3_NOP
  53. #define CPU_ST7920_DELAY_3 DELAY_0_NOP
  54. #elif (MOTHERBOARD == BOARD_MINIRAMBO)
  55. #define CPU_ST7920_DELAY_1 DELAY_0_NOP
  56. #define CPU_ST7920_DELAY_2 DELAY_4_NOP
  57. #define CPU_ST7920_DELAY_3 DELAY_0_NOP
  58. #elif (MOTHERBOARD == BOARD_RAMBO)
  59. #define CPU_ST7920_DELAY_1 DELAY_0_NOP
  60. #define CPU_ST7920_DELAY_2 DELAY_0_NOP
  61. #define CPU_ST7920_DELAY_3 DELAY_0_NOP
  62. #elif F_CPU == 16000000
  63. #define CPU_ST7920_DELAY_1 DELAY_0_NOP
  64. #define CPU_ST7920_DELAY_2 DELAY_0_NOP
  65. #define CPU_ST7920_DELAY_3 DELAY_1_NOP
  66. #else
  67. #error "No valid condition for delays in 'ultralcd_st7920_u8glib_rrd.h'"
  68. #endif
  69. #ifndef ST7920_DELAY_1
  70. #define ST7920_DELAY_1 CPU_ST7920_DELAY_1
  71. #endif
  72. #ifndef ST7920_DELAY_2
  73. #define ST7920_DELAY_2 CPU_ST7920_DELAY_2
  74. #endif
  75. #ifndef ST7920_DELAY_3
  76. #define ST7920_DELAY_3 CPU_ST7920_DELAY_3
  77. #endif
  78. #define ST7920_SND_BIT \
  79. WRITE(ST7920_CLK_PIN, LOW); ST7920_DELAY_1; \
  80. WRITE(ST7920_DAT_PIN, val & 0x80); ST7920_DELAY_2; \
  81. WRITE(ST7920_CLK_PIN, HIGH); ST7920_DELAY_3; \
  82. val <<= 1
  83. static void ST7920_SWSPI_SND_8BIT(uint8_t val) {
  84. ST7920_SND_BIT; // 1
  85. ST7920_SND_BIT; // 2
  86. ST7920_SND_BIT; // 3
  87. ST7920_SND_BIT; // 4
  88. ST7920_SND_BIT; // 5
  89. ST7920_SND_BIT; // 6
  90. ST7920_SND_BIT; // 7
  91. ST7920_SND_BIT; // 8
  92. }
  93. #if defined(DOGM_SPI_DELAY_US) && DOGM_SPI_DELAY_US > 0
  94. #define U8G_DELAY() delayMicroseconds(DOGM_SPI_DELAY_US)
  95. #else
  96. #define U8G_DELAY() u8g_10MicroDelay()
  97. #endif
  98. #define ST7920_CS() { WRITE(ST7920_CS_PIN,1); U8G_DELAY(); }
  99. #define ST7920_NCS() { WRITE(ST7920_CS_PIN,0); }
  100. #define ST7920_SET_CMD() { ST7920_SWSPI_SND_8BIT(0xf8); U8G_DELAY(); }
  101. #define ST7920_SET_DAT() { ST7920_SWSPI_SND_8BIT(0xfa); U8G_DELAY(); }
  102. #define ST7920_WRITE_BYTE(a) { ST7920_SWSPI_SND_8BIT((uint8_t)((a)&0xf0u)); ST7920_SWSPI_SND_8BIT((uint8_t)((a)<<4u)); U8G_DELAY(); }
  103. #define ST7920_WRITE_BYTES(p,l) { for (uint8_t i = l + 1; --i;) { ST7920_SWSPI_SND_8BIT(*p&0xf0); ST7920_SWSPI_SND_8BIT(*p<<4); p++; } U8G_DELAY(); }
  104. uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {
  105. uint8_t i, y;
  106. switch (msg) {
  107. case U8G_DEV_MSG_INIT: {
  108. OUT_WRITE(ST7920_CS_PIN, LOW);
  109. OUT_WRITE(ST7920_DAT_PIN, LOW);
  110. OUT_WRITE(ST7920_CLK_PIN, HIGH);
  111. ST7920_CS();
  112. u8g_Delay(120); //initial delay for boot up
  113. ST7920_SET_CMD();
  114. ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
  115. ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
  116. u8g_Delay(15); //delay for CGRAM clear
  117. ST7920_WRITE_BYTE(0x3E); //extended mode + GDRAM active
  118. for (y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { //clear GDRAM
  119. ST7920_WRITE_BYTE(0x80 | y); //set y
  120. ST7920_WRITE_BYTE(0x80); //set x = 0
  121. ST7920_SET_DAT();
  122. for (i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) //2x width clears both segments
  123. ST7920_WRITE_BYTE(0);
  124. ST7920_SET_CMD();
  125. }
  126. ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
  127. ST7920_NCS();
  128. }
  129. break;
  130. case U8G_DEV_MSG_STOP:
  131. break;
  132. case U8G_DEV_MSG_PAGE_NEXT: {
  133. uint8_t* ptr;
  134. u8g_pb_t* pb = (u8g_pb_t*)(dev->dev_mem);
  135. y = pb->p.page_y0;
  136. ptr = (uint8_t*)pb->buf;
  137. ST7920_CS();
  138. for (i = 0; i < PAGE_HEIGHT; i ++) {
  139. ST7920_SET_CMD();
  140. if (y < 32) {
  141. ST7920_WRITE_BYTE(0x80 | y); //y
  142. ST7920_WRITE_BYTE(0x80); //x=0
  143. }
  144. else {
  145. ST7920_WRITE_BYTE(0x80 | (y - 32)); //y
  146. ST7920_WRITE_BYTE(0x80 | 8); //x=64
  147. }
  148. ST7920_SET_DAT();
  149. ST7920_WRITE_BYTES(ptr, (LCD_PIXEL_WIDTH) / 8); //ptr is incremented inside of macro
  150. y++;
  151. }
  152. ST7920_NCS();
  153. }
  154. break;
  155. }
  156. #if PAGE_HEIGHT == 8
  157. return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
  158. #elif PAGE_HEIGHT == 16
  159. return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg);
  160. #else
  161. return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
  162. #endif
  163. }
  164. uint8_t u8g_dev_st7920_128x64_rrd_buf[(LCD_PIXEL_WIDTH) * (PAGE_HEIGHT) / 8] U8G_NOCOMMON;
  165. u8g_pb_t u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT, LCD_PIXEL_HEIGHT, 0, 0, 0}, LCD_PIXEL_WIDTH, u8g_dev_st7920_128x64_rrd_buf};
  166. u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = {u8g_dev_rrd_st7920_128x64_fn, &u8g_dev_st7920_128x64_rrd_pb, &u8g_com_null_fn};
  167. class U8GLIB_ST7920_128X64_RRD : public U8GLIB {
  168. public:
  169. U8GLIB_ST7920_128X64_RRD(uint8_t dummy) : U8GLIB(&u8g_dev_st7920_128x64_rrd_sw_spi) { UNUSED(dummy); }
  170. };
  171. #pragma GCC reset_options
  172. #endif //U8GLIB_ST7920
  173. #endif //ULCDST7920_H