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comparison lcd.c @ 64:ff29436c0224

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- Make sure the line is high before pulling low for reset. - Use delay properly to get the required delays.
author Daniel O'Connor <darius@dons.net.au>
date Sun, 14 Apr 2013 14:25:51 +0930
parents bb52e6dad784
children 662e7f01c991
comparison
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63:7e5916574d5e 64:ff29436c0224
129 uint16_t id, x, y; 129 uint16_t id, x, y;
130 130
131 /* Initialise LCD panel */ 131 /* Initialise LCD panel */
132 132
133 /* Pull reset pin low */ 133 /* Pull reset pin low */
134 GPIO_SetBits(GPIOE, GPIO_Pin_1);
134 delay(10); 135 delay(10);
135 GPIO_ResetBits(GPIOE, GPIO_Pin_1); 136 GPIO_ResetBits(GPIOE, GPIO_Pin_1);
136 delay(500); 137 delay(2000);
137 GPIO_SetBits(GPIOE, GPIO_Pin_1); 138 GPIO_SetBits(GPIOE, GPIO_Pin_1);
138 delay(500); 139 delay(500);
139 140
140 id = lcd_readreg(0x00); 141 id = lcd_readreg(0x00);
141 if (id != 0x9325) { 142 if (id != 0x9325) {
146 147
147 lcd_writereg(0x00e3, 0x3008); /* Set internal timing (not documented) */ 148 lcd_writereg(0x00e3, 0x3008); /* Set internal timing (not documented) */
148 lcd_writereg(0x00e7, 0x0012); /* Set internal timing (not documented) */ 149 lcd_writereg(0x00e7, 0x0012); /* Set internal timing (not documented) */
149 lcd_writereg(0x00ef, 0x1231); /* Set internal timing (not documented) */ 150 lcd_writereg(0x00ef, 0x1231); /* Set internal timing (not documented) */
150 lcd_writereg(0x0000, 0x0001); /* Start Oscillation */ 151 lcd_writereg(0x0000, 0x0001); /* Start Oscillation */
151 delay(50); 152 delay(50000);
152 lcd_writereg(0x0001, 0x0100); /* set SS (S720 -> S1) */ 153 lcd_writereg(0x0001, 0x0100); /* set SS (S720 -> S1) */
153 lcd_writereg(0x0002, 0x0700); /* set line inversion (B/C + EOR) */ 154 lcd_writereg(0x0002, 0x0700); /* set line inversion (B/C + EOR) */
154 lcd_writereg(0x0004, 0x0000); /* no resizing */ 155 lcd_writereg(0x0004, 0x0000); /* no resizing */
155 lcd_writereg(0x0008, 0x0202); /* set the back porch and front porch (2 lines each) */ 156 lcd_writereg(0x0008, 0x0202); /* set the back porch and front porch (2 lines each) */
156 lcd_writereg(0x0009, 0x0000); /* set non-display area refresh cycle ISC[3:0] */ 157 lcd_writereg(0x0009, 0x0000); /* set non-display area refresh cycle ISC[3:0] */
163 /* Power On sequence */ 164 /* Power On sequence */
164 lcd_writereg(0x0010, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ 165 lcd_writereg(0x0010, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
165 lcd_writereg(0x0011, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */ 166 lcd_writereg(0x0011, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */
166 lcd_writereg(0x0012, 0x0000); /* VREG1OUT voltage */ 167 lcd_writereg(0x0012, 0x0000); /* VREG1OUT voltage */
167 lcd_writereg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */ 168 lcd_writereg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
168 delay(200); /* Dis-charge capacitor power voltage */ 169 delay(200000); /* Dis-charge capacitor power voltage */
169 lcd_writereg(0x0010, 0x1690); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ 170 lcd_writereg(0x0010, 0x1690); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
170 lcd_writereg(0x0011, 0x0227); /* R11h = 0x0221 at VCI = 3.3V, DC1[2:0], DC0[2:0], VC[2:0] */ 171 lcd_writereg(0x0011, 0x0227); /* R11h = 0x0221 at VCI = 3.3V, DC1[2:0], DC0[2:0], VC[2:0] */
171 delay(50); /* delay 50ms */ 172 delay(50000); /* delay 50ms */
172 lcd_writereg(0x0012, 0x001c); /* External reference voltage= Vci; */ 173 lcd_writereg(0x0012, 0x001c); /* External reference voltage= Vci; */
173 delay(50); /* delay 50ms */ 174 delay(50000); /* delay 50ms */
174 lcd_writereg(0x0013, 0x1800); /* R13 = 1200 when R12 = 009D; VDV[4:0] for VCOM amplitude */ 175 lcd_writereg(0x0013, 0x1800); /* R13 = 1200 when R12 = 009D; VDV[4:0] for VCOM amplitude */
175 lcd_writereg(0x0029, 0x001c); /* R29 = 000C when R12 = 009D; VCM[5:0] for VCOMH */ 176 lcd_writereg(0x0029, 0x001c); /* R29 = 000C when R12 = 009D; VCM[5:0] for VCOMH */
176 lcd_writereg(0x002b, 0x000d); /* Frame Rate = 91Hz */ 177 lcd_writereg(0x002b, 0x000d); /* Frame Rate = 91Hz */
177 delay(50); /* delay 50ms */ 178 delay(50000); /* delay 50ms */
178 179
179 /* Set GRAM area */ 180 /* Set GRAM area */
180 lcd_writereg(0x0050, 0x0000); /* Horizontal GRAM Start Address */ 181 lcd_writereg(0x0050, 0x0000); /* Horizontal GRAM Start Address */
181 lcd_writereg(0x0051, 0x00ef); /* Horizontal GRAM End Address */ 182 lcd_writereg(0x0051, 0x00ef); /* Horizontal GRAM End Address */
182 lcd_writereg(0x0052, 0x0000); /* Vertical GRAM Start Address */ 183 lcd_writereg(0x0052, 0x0000); /* Vertical GRAM Start Address */