STM32F107VC/Using MCBQVGA-TS-Display-v12 - Revision history

Heth at 08:55, 5 October 2017

2017-10-05T08:55:03Z

2017-06-14T05:37:33Z

‎Links

2017-06-09T05:54:13Z

‎Example code

2017-06-09T05:37:19Z

‎Links

2012-01-26T05:59:25Z

‎Example code

2012-01-21T10:03:33Z

‎Example code

2012-01-21T06:25:21Z

‎Example code

2012-01-20T07:57:40Z

‎Example code

2012-01-19T14:24:46Z

‎Keil MCBSTM32C board

2012-01-19T08:34:02Z

@@ Line 11: / Line 11: @@
 ;Note:To change Pulse Width change the value of '''TIM3->CCR3'''
 <source lang=c>
 /*
 Example 2:

@@ Line 55: / Line 55: @@
 **[http://www.ampdisplay.com/colortft_specs_18to50.html Display modules]??
 *[http://www.intelligentdisplay.com/PDFs/SPFD5408B-C3_V04.pdf SPFD5408B 720 channel driver for TFT-LCD Display] (Loads PDF)
-*[http://www.st.com/internet/analog/product/185203.jsp STMPE811 Touch Screen Controller]
+*[http://www.st.com/content/ccc/resource/technical/document/datasheet/d3/4a/58/38/4f/fa/46/2d/CD00186725.pdf/files/CD00186725.pdf/jcr:content/translations/en.CD00186725.pdf STMPE811 Touch Screen Controller]
 *[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00098098.pdf STLD40D White LED power supply for large display backlight] (Loads PDF)

@@ Line 29: / Line 29: @@
 	TIM3->PSC = 72;	  // Prescaler: With timer 3 input clock 72 Mhz divide by 72 to 1 Mhz
 	TIM3->ARR = 1000; // Auto Reload Register set to 1000 divide 1Mhz/1000 = 1 Khz
-	TIM3->CCR3 = 100; //Compare Regisger for channel 3
+	TIM3->CCR3 = 100; //Compare Register for channel 3
 	TIM3->CCMR2 |= 7 << 4; //PWM mode 1
 	TIM3->CCMR2 |= 1 << 3;

@@ Line 52: / Line 52: @@
 =Links=
 *[http://www.keil.com/mcbstm32c/mcbstm32c-display-board-schematics.pdf MCBSTM32C Display Schematics] (Loads PDF)
-*[http://www.ampdisplay.com/product_specs/2.4-specs/ADI_2.4_AM-240320LDTNQW-T00H.pdf AM-240320LDTNQW TFT-LCD Display module with Touch Panel] (Loads PDF)
+*[http://gamma.spb.ru/download/AM-240320LDTNQW-T00H.pdf AM-240320LDTNQW TFT-LCD Display module with Touch Panel] (Loads PDF)
 **[http://www.ampdisplay.com/colortft_specs_18to50.html Display modules]??
 *[http://www.intelligentdisplay.com/PDFs/SPFD5408B-C3_V04.pdf SPFD5408B 720 channel driver for TFT-LCD Display] (Loads PDF)
 *[http://www.st.com/internet/analog/product/185203.jsp STMPE811 Touch Screen Controller]
 *[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00098098.pdf STLD40D White LED power supply for large display backlight] (Loads PDF)
 =References=
 <references/>
 [[Category:ARM]]

@@ Line 18: / Line 18: @@
 Mode : Continues PWM mode to PB0. Section 15.3.9 page 370
      For details see: http://mars.tekkom.dk/mediawiki/index.php/STM32F107VC/Using_MCBQVGA-TS-Display-v12
 */
@@ Line 38: / Line 40: @@
 /* Change Display Backlight Intensity
   input: 0 - 17 ( 0 = 0% backlight (All dark) to 17 = 100% backlight (Brigth)
-  Cavets: No errorcontrol
+  Caveats: No errorcontrol
               When 0 the timer should be turned off and the backlight turned off (PB0=0)
               when 17 the timer should be turned off and the backlight turned on (PB0=1)

@@ Line 30: / Line 30: @@
 	TIM3->CCMR2 |= 7 << 4; //PWM mode 1
 	TIM3->CCMR2 |= 1 << 3;
-	TIM3->EGR |= 1;
+	TIM3->EGR |= 1; //Update generate
 	TIM3->CCER |= 1<<8; //Polarity
 	TIM3->CCER |= 1<<9;
 	TIM3->CR1 |= 1;
+}

@@ Line 9: / Line 9: @@
 ===Example code===
 Still experimental and missing documentation
-;Note:To change Pulse Width change the value of '''TIM3->ARR'''
+;Note:To change Pulse Width change the value of '''TIM3->CCR3'''
 <source lang=c>
 void tim3init( void ) {
-	int i;
+	GPIOB->CRL |= 0xa;  // Set PB0 as Alternate function Push-Pull
-	GPIOB->CRL |= 0xa;
+	RCC->APB1ENR |= 2; //Enable timer 3 clock 	(RCC->APB1ENR bit 1 = 1)
-     // Step  5: TIM2_ARR = 10000 (Autload Register 10000 - 1 timeout/sek for testing)
-	// Step  4: TIM2_PSC = 3600 (Prescale to 10000)
+	TIM3->PSC = 72;	  // Prescaler: With timer 3 input clock 72 Mhz divide by 72 to 1 Mhz
-	TIM3->PSC = 72;
+	TIM3->ARR = 1000; // Auto Reload Register set to 1000 divide 1Mhz/1000 = 1 Khz
-	TIM3->ARR = 1000;
+	TIM3->CCR3 = 100; //Compare Regisger for channel 3
 	TIM3->CCMR2 |= 7 << 4; //PWM mode 1
 	TIM3->CCMR2 |= 1 << 3;
@@ Line 30: / Line 33: @@
 	TIM3->CCER |= 1<<8; //Polarity
 	TIM3->CCER |= 1<<9;
 	// Step  3: Enable Counter 		(TIM3_CR1 bit 0 = 1)
 	TIM3->CR1 |= 1;
+}
 </source>

@@ Line 6: / Line 6: @@
 #To see Timer 3's possibilities on PB0 look on page 161 section 9.1.11 table 23 it's seen that timer 3 can use a GPIO pin as ''Output Compare Channel X'' when the pin is configured as ''Alternate Function Push-Pull''.
 #To set PB0 as Alternate Function Push-Pull - See the GPIOx_CRL register on page 166.
 #To configure Timer 3 as continues [[PWM]] output timer see Page 371 section 15.3.9
 =Links=
 *[http://www.keil.com/mcbstm32c/mcbstm32c-display-board-schematics.pdf MCBSTM32C Display Schematics] (Loads PDF)