जीवन की गीक-शैली का उत्सव: एआरएम और टीएफटी एलसीडी के साथ

 void _lcd_select(void) { GPIO_ResetBits(GPIOC, GPIO_Pin_9); } void _lcd_deselect(void) { GPIO_SetBits(GPIOC, GPIO_Pin_9); } void _lcd_rs_set(void) { GPIO_SetBits(GPIOC, GPIO_Pin_8); } void _lcd_rs_reset(void) { GPIO_ResetBits(GPIOC, GPIO_Pin_8); } void _lcd_rd_en(void) { GPIO_ResetBits(GPIOC, GPIO_Pin_11); } void _lcd_rd_dis(void) { GPIO_SetBits(GPIOC, GPIO_Pin_11); } void _lcd_wr_en(void) { GPIO_ResetBits(GPIOC, GPIO_Pin_10); } void _lcd_wr_dis(void) { GPIO_SetBits(GPIOC, GPIO_Pin_10); } void _lcd_bl_en(void) { GPIO_SetBits(GPIOC, GPIO_Pin_12); } void _lcd_bl_dis(void) { GPIO_ResetBits(GPIOC, GPIO_Pin_12); } // changes DB[15:0] GPIO pins mode void lcd_gpio_conf(GPIOMode_TypeDef mode); void _lcd_put_data(u16 data) { // data[0-7] -> GPIOC[0-7], data[8-15] -> GPIOB[8-15] GPIOB->ODR = (GPIOB->ODR&0x00ff)|(data&0xff00); GPIOC->ODR = (GPIOC->ODR&0xff00)|(data&0x00ff); } u16 _lcd_read_data(void) { lcd_gpio_conf(GPIO_Mode_IN_FLOATING); u16 result = (GPIOB->IDR&0xff00)|(GPIOC->IDR&0x00ff); lcd_gpio_conf(GPIO_Mode_Out_PP); return result; } // assume that lcd_select() was done before it void _lcd_tx_reg(u8 addr) { _lcd_put_data(addr); _lcd_rs_reset(); _lcd_wr_en(); _lcd_wr_dis(); _lcd_rs_set(); } // assume that _lcd_tx_reg(u8) was done before it void _lcd_tx_data(u16 data) { _lcd_put_data(data); _lcd_wr_en(); _lcd_wr_dis(); } // assume that _lcd_tx_reg(u8) was done before it u16 _lcd_rx_data(void) { _lcd_rd_en(); u16 result = _lcd_read_data(); _lcd_rd_dis(); return result; } 

 void lcd_put_char_at(u32 data, u16 x, u16 y) { u8 xsize, ysize; u8 *char_img; lcd_get_char(data, &xsize, &ysize, &char_img); lcd_set_cursor(x, y); lcd_set_window(x, y, x + xsize, y + ysize); _lcd_select(); _lcd_tx_reg(0x22); // works only for 8xN fonts for(u8 i = 0; i < ysize; i++) { u8 str = char_img[i]; for(u8 j = 0; j < xsize; j++) { _lcd_tx_data((str&(1<<(xsize-j-1)))?fg_color:bg_color); } } _lcd_deselect(); } 

 u16 lcd_init(void) { RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE); GPIO_InitTypeDef gpio_conf; gpio_conf.GPIO_Speed = GPIO_Speed_50MHz; gpio_conf.GPIO_Mode = GPIO_Mode_Out_PP; gpio_conf.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12; GPIO_Init(GPIOC, &gpio_conf); lcd_gpio_conf(GPIO_Mode_Out_PP); // to init state (0xffff on db0-15, backlit is disabled, nCS, nWR, nRD and RS are high) _lcd_bl_dis(); _lcd_put_data(0xffff); _lcd_deselect(); _lcd_wr_dis(); _lcd_rd_dis(); _lcd_rs_set(); // osc enable _lcd_bl_dis(); lcd_write_reg(0x00, 0x0001); delay_ms(100); u16 lcd_code = lcd_read_reg(0x00); delay_ms(100); // driver output control (S720-S1) lcd_write_reg(0x01, 0x0100); // driving wave control (line inv) lcd_write_reg(0x02, 0x0700); // entry mode (horiz, dir(h+,v+), hwm-, bgr+) lcd_write_reg(0x03, 0x1030); // resize (off) lcd_write_reg(0x04, 0x0000); // display control 2 (skip 2 lines on front porch and on back porch) lcd_write_reg(0x08, 0x0202); // display control 3-4 (scan mode normal, fmark off) lcd_write_reg(0x09, 0x0000); lcd_write_reg(0x0a, 0x0000); // RGB disp iface control (int clock, sys int, 16bit) lcd_write_reg(0x0c, 0x0001); // frame marker position (isn't used) lcd_write_reg(0x0d, 0x0000); // RGB disp iface control 2 (all def, we don't use rgb) lcd_write_reg(0x0f, 0x0000); // power on seq lcd_write_reg(0x07, 0x0021); delay_ms(10); // turn on power supply and configure it (enable sources, set contrast, power supply on) lcd_write_reg(0x10, 0x16b0); // set normal voltage and max dcdc freq lcd_write_reg(0x11, 0x0007); // internal vcomh (see 0x29), pon, gray level (0x08) lcd_write_reg(0x12, 0x0118); // set vcom to 0.92 * vreg1out lcd_write_reg(0x13, 0x0b00); // vcomh = 0.69 * vreg1out lcd_write_reg(0x29, 0x0000); // set x and y range lcd_write_reg(0x50, 0); lcd_write_reg(0x51, LCD_WIDTH-1); lcd_write_reg(0x52, 0); lcd_write_reg(0x53, LCD_HEIGHT-1); // gate scan control (scan direction, display size) lcd_write_reg(0x60, 0x2700); lcd_write_reg(0x61, 0x0001); lcd_write_reg(0x6a, 0x0000); // partial displays off for(u8 addr = 0x80; addr < 0x86; addr++) { lcd_write_reg(addr, 0x0000); } // panel iface control (19 clock/line) lcd_write_reg(0x90, 0x0013); // lcd timings lcd_write_reg(0x92, 0x0000); lcd_write_reg(0x93, 0x0001); lcd_write_reg(0x95, 0x0110); lcd_write_reg(0x97, 0x0000); lcd_write_reg(0x98, 0x0000); lcd_write_reg(0x07, 0x0133); // turn on backlit after init done _lcd_bl_en(); return lcd_code; } 

• \ 033 [ए = कर्सर को एक पंक्ति ऊपर ले जाएं
• \ 033 [बी = कर्सर को एक पंक्ति नीचे ले जाएं
• \ 033 [C = कर्सर को दाईं ओर ले जाएं
• \ 033 [डी = कर्सर को बाईं ओर एक स्थिति में ले जाएँ
• \ 033 [H = कर्सर को ऊपरी बाएँ कोने में ले जाएँ - घर (स्थिति 0,0)
• \ 033 [जे = सब कुछ साफ़ करें, कर्सर घर वापस न करें!
• \ 033 [K = पंक्ति के अंत में मिटाता है, कर्सर को घर नहीं लौटाता है!
• \ 033 [एम = नया चरित्र मानचित्र - कार्यान्वित नहीं किया गया
• \ 033 [Y = स्थिति, YX लेता है
• \ 033 [X = स्थिति, XY लेता है
• \ 033 [R = CGRAM मेमोरी सेल चयन - लागू नहीं, क्योंकि कोई CGRAM नहीं
• \ 033 [वी = स्क्रॉलिंग सक्षम - कार्यान्वित नहीं
• \ 033 [डब्ल्यू = स्क्रॉलिंग अक्षम - लागू नहीं
• \ 033 [बी = बैकलाइट चालू / बंद - लागू नहीं

• \ r = कैरिज रिटर्न (वर्तमान लाइन पर कर्सर को स्थिति 0 पर लौटाएं!)
• \ n = नई पंक्ति
• \ t = टैब (डिफ़ॉल्ट 3 वर्ण)

 // escape sequence handling vars u8 escape_seq = 0; u8 buf[10]; void handle_byte(u8 data) { if((!escape_seq) && (data == 0x1b)) { escape_seq = 1; } else if (escape_seq == 1) { buf[escape_seq] = data; escape_seq++; if(data != '[') { escape_seq = 0; } } else if (escape_seq == 2) { switch(data) { case 'A': lcd_term_set_cursor(lcd_term_row()-1, lcd_term_col()); break; case 'B': lcd_term_set_cursor(lcd_term_row()+1, lcd_term_col()); break; case 'C': lcd_term_set_cursor(lcd_term_row(), lcd_term_col()+1); break; case 'D': lcd_term_set_cursor(lcd_term_row(), lcd_term_col()-1); break; case 'H': lcd_term_set_cursor(0, 0); break; case 'J': lcd_term_clear(); break; case 'K': lcd_term_flush_str(); break; case 'X': case 'Y': buf[escape_seq] = data; escape_seq++; return; } escape_seq = 0; } else if(escape_seq == 3) { buf[escape_seq] = data; escape_seq++; } else if(escape_seq == 4) { u8 row = (buf[2] == 'Y') ? buf[3] - 037 : data - 037; u8 col = (buf[2] == 'Y') ? data - 037 : buf[3] - 037; lcd_term_set_cursor(row, col); escape_seq = 0; } else { lcd_term_put_str(&data, 1); } }