From 480dad829fe7870883d51cb641ce05aa62074424 Mon Sep 17 00:00:00 2001 From: bnewbold Date: Fri, 25 Jun 2010 21:46:55 -0400 Subject: awesome vga demos, need vga+systick disabled --- examples/vga.cpp | 262 ------------------------------------------------------- 1 file changed, 262 deletions(-) delete mode 100644 examples/vga.cpp (limited to 'examples/vga.cpp') diff --git a/examples/vga.cpp b/examples/vga.cpp deleted file mode 100644 index c2e61ae..0000000 --- a/examples/vga.cpp +++ /dev/null @@ -1,262 +0,0 @@ - -#include "wirish.h" - -/* -D5 PB6 - TIM4_CH1 I2C1_SCL - - Y -D6 PA8 - TIM1_CH1 - USART1_CK - Y -D7 PA9 - TIM1_CH2 - USART1_TX - Y -D8 PA10 - TIM1_CH3 - USART1_RX - Y -D9 PB7 - TIM4_CH2 I2C1_SDA - - Y -*/ - -//gpio_write_bit(GPIOB_BASE, 6, 1); // VGA_R -//gpio_write_bit(GPIOB_BASE, 6, 0); - -//(GPIOA_BASE)->BSRR = BIT(8); -//asm volatile("nop"); -//(GPIOA_BASE)->BRR = BIT(8); -/* - gpio_write_bit(GPIOB_BASE, 6, 1); // VGA_R - gpio_write_bit(GPIOB_BASE, 6, 0); - gpio_write_bit(GPIOA_BASE, 8, 1); // VGA_G - gpio_write_bit(GPIOA_BASE, 8, 0); - gpio_write_bit(GPIOA_BASE, 9, 1); // VGA_B - gpio_write_bit(GPIOA_BASE, 9, 0); - gpio_write_bit(GPIOA_BASE, 10, 1); // VGA_V - gpio_write_bit(GPIOA_BASE, 10, 0); - gpio_write_bit(GPIOB_BASE, 7, 1); // VGA_H - gpio_write_bit(GPIOB_BASE, 7, 0); -*/ - -#define LED_PIN 13 -#define VGA_R 5 // B6 -#define VGA_G 6 // A8 -#define VGA_B 7 // A9 -#define VGA_V 11 // A6 -#define VGA_H 12 // A7 -#define VGA_R_HIGH (GPIOB_BASE)->BSRR = BIT(6) -#define VGA_R_LOW (GPIOB_BASE)->BRR = BIT(6) -#define VGA_G_HIGH (GPIOA_BASE)->BSRR = BIT(8) -#define VGA_G_LOW (GPIOA_BASE)->BRR = BIT(8) -#define VGA_B_HIGH (GPIOA_BASE)->BSRR = BIT(9) -#define VGA_B_LOW (GPIOA_BASE)->BRR = BIT(9) -#define VGA_V_HIGH (GPIOA_BASE)->BSRR = BIT(6) -#define VGA_V_LOW (GPIOA_BASE)->BRR = BIT(6) -#define VGA_H_HIGH (GPIOA_BASE)->BSRR = BIT(7) -#define VGA_H_LOW (GPIOA_BASE)->BRR = BIT(7) - -void isr_porch(void); -void isr_start(void); -void isr_stop(void); -void isr_update(void); - -void setup() -{ - pinMode(LED_PIN, OUTPUT); - digitalWrite(LED_PIN, 1); - pinMode(VGA_R, OUTPUT); - pinMode(VGA_G, OUTPUT); - pinMode(VGA_B, OUTPUT); - pinMode(VGA_V, OUTPUT); - pinMode(VGA_H, OUTPUT); - - /* Send a message out USART2 */ - Serial2.begin(9600); - Serial2.println("Video time..."); - - - digitalWrite(VGA_R, 0); - digitalWrite(VGA_G, 0); - digitalWrite(VGA_B, 0); - digitalWrite(VGA_H,1); - digitalWrite(VGA_V,1); - - timer_set_prescaler(4,0); - timer_set_mode(4, 1, TIMER_OUTPUTCOMPARE); - timer_set_mode(4, 2, TIMER_OUTPUTCOMPARE); - timer_set_mode(4, 3, TIMER_OUTPUTCOMPARE); - timer_set_mode(4, 4, TIMER_OUTPUTCOMPARE); - timer_set_reload(4, 2287); - timer_set_compare_value(4,1,200); - timer_set_compare_value(4,2,300); - timer_set_compare_value(4,3,2170); // 2219 max... - timer_set_compare_value(4,4,1); - timer_attach_interrupt(4,1,isr_porch); - timer_attach_interrupt(4,2,isr_start); - timer_attach_interrupt(4,3,isr_stop); - timer_attach_interrupt(4,4,isr_update); - - timer_set_count(4,0); -} - -int toggle = 0; -uint16 x = 0; -uint16 y = 0; -uint8 v_active = 1; -GPIO_Port *portb = GPIOB_BASE; - -void isr_porch(void) { - VGA_H_HIGH; - y++; - if(y>=523) { - y=1; - v_active = 1; - return; - } - if(y>=492) { - VGA_V_HIGH; - return; - } - if(y>=490) { - VGA_V_LOW; - return; - } - if(y>=479) { // 479 - v_active = 0; - return; - } -} - -uint8 logo[18][16] = { - {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,}, - {0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,}, - {0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,}, - {0,0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,}, - {0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,}, - {0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,}, - {0,0,1,0,0,1,0,1,0,1,0,0,1,0,0,0,}, - {0,1,0,0,0,0,1,1,1,0,0,0,0,1,0,0,}, - {0,1,0,1,0,0,0,1,0,0,0,1,0,1,0,0,}, - {1,0,0,0,1,0,0,1,0,0,1,0,0,0,1,0,}, - {1,0,0,0,0,1,0,1,0,1,0,0,0,0,1,0,}, - {1,0,0,0,0,0,1,1,1,0,0,0,0,0,1,0,}, - {0,1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,}, - {0,0,1,1,0,0,0,1,0,0,0,1,1,0,0,0,}, - {0,0,0,0,1,1,1,0,1,1,1,0,0,0,0,0,}, - {0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,}, - {0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,}, - {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,}, }; - -void isr_start(void) { - if(!v_active) { return; } - VGA_R_HIGH; - //delayMicroseconds(2); - //gpio_write_bit(GPIOA_BASE, 8, 1); // VGA_G - for(x=0; x<32; x++) { - if(logo[y/28][x/2]) { - VGA_G_HIGH; - VGA_B_HIGH; - } else { - VGA_G_LOW; - VGA_B_LOW; - } - } - -} -void isr_stop(void) { - if(!v_active) { return; } - VGA_R_LOW; - VGA_G_LOW; - VGA_B_LOW; -} -void isr_update(void) { - VGA_H_LOW; -} - -void loop() { - /* - toggle ^= 1; - digitalWrite(LED_PIN, toggle); - delay(100); - Serial2.println("HIHIHI!"); - */ - //for(y=0; y<480; y++) { - /* - for(y=0; y<160; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_H_HIGH; - VGA_R_HIGH; - delayMicroseconds(8); - VGA_G_HIGH; - delayMicroseconds(10); - VGA_B_HIGH; - delayMicroseconds(10); - VGA_R_LOW; - VGA_B_LOW; - VGA_G_LOW; - //VGA_G_HIGH; - } - for(y=0; y<160; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_H_HIGH; - VGA_G_HIGH; - delayMicroseconds(8); - VGA_R_HIGH; - delayMicroseconds(10); - VGA_B_HIGH; - delayMicroseconds(10); - VGA_R_LOW; - VGA_B_LOW; - VGA_G_LOW; - //VGA_G_HIGH; - } - for(y=0; y<160; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_H_HIGH; - VGA_B_HIGH; - delayMicroseconds(8); - VGA_G_HIGH; - delayMicroseconds(10); - VGA_R_HIGH; - delayMicroseconds(10); - VGA_R_LOW; - VGA_B_LOW; - VGA_G_LOW; - //VGA_G_HIGH; - } - for(y=0; y<11; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_R_LOW; - VGA_H_HIGH; - delayMicroseconds(28); - } - VGA_V_LOW; - for(y=0; y<2; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_R_LOW; - VGA_H_HIGH; - delayMicroseconds(28); - } - VGA_V_HIGH; - for(y=0; y<30; y++) { - VGA_R_LOW; - VGA_H_LOW; - delayMicroseconds(3); - VGA_R_LOW; - VGA_H_HIGH; - delayMicroseconds(28); - } - */ - -} - - -int main(void) { - init(); - setup(); - - while (1) { - loop(); - } - return 0; -} -- cgit v1.2.3