My Marlin configs for Fabrikator Mini and CTC i3 Pro B
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ultralcd_st7920_u8glib_rrd.h 6.4KB

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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. #define ST7920_CS() {WRITE(ST7920_CS_PIN,1);u8g_10MicroDelay();}
  94. #define ST7920_NCS() {WRITE(ST7920_CS_PIN,0);}
  95. #define ST7920_SET_CMD() {ST7920_SWSPI_SND_8BIT(0xf8);u8g_10MicroDelay();}
  96. #define ST7920_SET_DAT() {ST7920_SWSPI_SND_8BIT(0xfa);u8g_10MicroDelay();}
  97. #define ST7920_WRITE_BYTE(a) {ST7920_SWSPI_SND_8BIT((uint8_t)((a)&0xf0u));ST7920_SWSPI_SND_8BIT((uint8_t)((a)<<4u));u8g_10MicroDelay();}
  98. #define ST7920_WRITE_BYTES(p,l) {uint8_t i;for(i=0;i<l;i++){ST7920_SWSPI_SND_8BIT(*p&0xf0);ST7920_SWSPI_SND_8BIT(*p<<4);p++;}u8g_10MicroDelay();}
  99. uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {
  100. uint8_t i, y;
  101. switch (msg) {
  102. case U8G_DEV_MSG_INIT: {
  103. OUT_WRITE(ST7920_CS_PIN, LOW);
  104. OUT_WRITE(ST7920_DAT_PIN, LOW);
  105. OUT_WRITE(ST7920_CLK_PIN, HIGH);
  106. ST7920_CS();
  107. u8g_Delay(120); //initial delay for boot up
  108. ST7920_SET_CMD();
  109. ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
  110. ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
  111. u8g_Delay(15); //delay for CGRAM clear
  112. ST7920_WRITE_BYTE(0x3E); //extended mode + GDRAM active
  113. for (y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { //clear GDRAM
  114. ST7920_WRITE_BYTE(0x80 | y); //set y
  115. ST7920_WRITE_BYTE(0x80); //set x = 0
  116. ST7920_SET_DAT();
  117. for (i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) //2x width clears both segments
  118. ST7920_WRITE_BYTE(0);
  119. ST7920_SET_CMD();
  120. }
  121. ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
  122. ST7920_NCS();
  123. }
  124. break;
  125. case U8G_DEV_MSG_STOP:
  126. break;
  127. case U8G_DEV_MSG_PAGE_NEXT: {
  128. uint8_t* ptr;
  129. u8g_pb_t* pb = (u8g_pb_t*)(dev->dev_mem);
  130. y = pb->p.page_y0;
  131. ptr = (uint8_t*)pb->buf;
  132. ST7920_CS();
  133. for (i = 0; i < PAGE_HEIGHT; i ++) {
  134. ST7920_SET_CMD();
  135. if (y < 32) {
  136. ST7920_WRITE_BYTE(0x80 | y); //y
  137. ST7920_WRITE_BYTE(0x80); //x=0
  138. }
  139. else {
  140. ST7920_WRITE_BYTE(0x80 | (y - 32)); //y
  141. ST7920_WRITE_BYTE(0x80 | 8); //x=64
  142. }
  143. ST7920_SET_DAT();
  144. ST7920_WRITE_BYTES(ptr, (LCD_PIXEL_WIDTH) / 8); //ptr is incremented inside of macro
  145. y++;
  146. }
  147. ST7920_NCS();
  148. }
  149. break;
  150. }
  151. #if PAGE_HEIGHT == 8
  152. return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
  153. #elif PAGE_HEIGHT == 16
  154. return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg);
  155. #else
  156. return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
  157. #endif
  158. }
  159. uint8_t u8g_dev_st7920_128x64_rrd_buf[(LCD_PIXEL_WIDTH) * (PAGE_HEIGHT) / 8] U8G_NOCOMMON;
  160. 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};
  161. 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};
  162. class U8GLIB_ST7920_128X64_RRD : public U8GLIB {
  163. public:
  164. U8GLIB_ST7920_128X64_RRD(uint8_t dummy) : U8GLIB(&u8g_dev_st7920_128x64_rrd_sw_spi) { UNUSED(dummy); }
  165. };
  166. #pragma GCC reset_options
  167. #endif //U8GLIB_ST7920
  168. #endif //ULCDST7920_H