// // #include "pico/stdlib.h" #include #include #include #include #include "stdlib.h" #include "hardware/vreg.h" #include "hardware/clocks.h" #include "math.h" #include "hardware/adc.h" #include "DVIinit_640x480x8_v1.h" #include "pt_cornell_rp2040_v1_4.h" float core_temp ; // ================================================== // === dvi test thread // ================================================== // static PT_THREAD (protothread_dvi(struct pt *pt)) { // every thread begins with PT_BEGIN(pt); PT_BEGIN(pt); // animation state variables static int x_pos = 50, x_dir=1 ; static float x_pos1 = 50.0f, x_dir1=-0.25f ; static int x_pos2 = 50, x_dir2=1 ; static int k ; static int frame_count ; static char round_color, round_color1 ; // // Title block -- put static stuff at top fillRect(0, 0, 639, 39,rgb332(1,1,1)); fillRect(0, 39, 639, 2, 0xff); drawTextTiny8(2, 2, "Cornell ECE4760", 0xff, rgb332(1,1,1)); drawTextTiny8(2, 12, "Pico2 rp2350", 0xff, rgb332(1,1,1)); drawTextTiny8(2, 22, "Hunter Adams", 0xff, rgb332(1,1,1)); drawTextArial24(180, 2, "DVI 640x480 8-bit", 0xff, rgb332(1,1,1)); drawTextTiny8(550, 22, "Bruce Land", 0xff, rgb332(1,1,1)); drawTextTiny8(550, 12, "04nov2026", 0xff, rgb332(1,1,1)); drawTextTiny8(550, 1, "DVI Ver 1", 0xff, rgb332(1,1,1)); char str[20]; sprintf(str, "clk_sys=%3u MHz", sys_clock_actual/1000000); drawTextVGA437 (180, 22, str, 0xff, rgb332(1,1,1)); // end title block // while(1) { // // wait here for frame start PT_YIELD_UNTIL(pt, start_frame==1); gpio_put(2,1); start_frame = false; // clear buffer // above 40 is static image clearRegion(40,479, rgb332(1,1,1)) ; frame_count++ ; // // animation control for three different trajectories if (x_pos2>50) x_dir2 = -2 ; else if (x_pos2<2) x_dir2 = 2; x_pos2 += x_dir2 ; // if (x_pos>200) x_dir = -1 ; else if (x_pos<5) x_dir = 1; x_pos += x_dir ; // if (x_pos1>80.0f) x_dir1 = -0.25f ; else if (x_pos1<5.0f) x_dir1 = 0.25f; x_pos1 += x_dir1 ; // // static color pallet samples #define sq_wide 30 #define sq_high 20 #define top_start 45 if (frame_count % 120 == 0) { k = (k+1) % 4 ; } for(int j=0; j<8; j++){ for(int i=0; i<8; i++){ fillRect(i*sq_wide, j*sq_high+top_start, sq_wide-1, sq_high-1, rgb332(i,j,k)); sprintf(str, "%02x", rgb332(i,j,k)); drawTextTiny8(i*sq_wide+1, j*sq_high+top_start+1, str, (i+j+k<4)? 0xff : 0, rgb332(i,j,k)); } } // grey scale fillRect(320,45,20, 20,rgb332(7,7,3)); fillRect(340,45,20, 20,rgb332(6,6,3)); fillRect(360,45,20, 20,rgb332(5,5,2)); fillRect(380,45,20, 20,rgb332(3,3,1)); fillRect(400,45,20, 20,rgb332(2,2,1)); fillRect(420,45,20, 20,rgb332(1,1,0)); //drawTextTiny8(444, 45, "Grey Scale", 0xff, rgb332(1,1,1)); // drawRect(x_pos, 210, 40, 35, rgb332(5,5,2)); fillRect(x_pos, 250, 40, 35, rgb332(5,5,2)); // drawCircle(100, 320, (int)x_pos1+2, rgb332(7,0,7)); fillCircle(100, 320, (int)x_pos1, rgb332(7,0,0)); // fillTri(500, 122+x_pos, 550, 130+x_pos, 525, 200+x_pos, rgb332(0, 3, 0)) ; short point_list[4][2] = {500, 132, 550, 140, 525, 210, 500, 132} ; drawMultiLine(4, point_list, rgb332(0,7,0)) ; if (frame_count%250 == 0){ round_color = rgb332(rand()&7, rand()&7,rand()&3); round_color1 = rgb332(rand()&7, rand()&7,rand()&3); } sprintf(str, "outer color = 0x%02x", round_color ); drawTextVGA437(300, 212, str, 0Xff, rgb332(1,1,1)); // sprintf(str, "inner color = 0x%02x", round_color1 ); drawTextVGA437(300, 332, str, 0Xff, rgb332(1,1,1)); // fillRoundRect(300, 100, 150, 100, 20, round_color); sprintf(str, "0xff on 0x%02x", round_color ); drawTextVGA437(330, 110, str, 0XFF, round_color); sprintf(str, "0x00 on 0x%02x", round_color ); drawTextVGA437(330, 130, str, 0X00, round_color); sprintf(str, "0xfc on 0x%02x", round_color ); drawTextVGA437(330, 150, str, 0xfc, round_color); sprintf(str, "~0x%02x on 0x%02x", (char)~round_color, round_color ); drawTextVGA437(330, 170, str, ~round_color, round_color); // fillRoundRect(300, 230, 150, 100, 20, round_color); fillRoundRect(325, 250, 100, 60, 20, round_color1); // samples of the fonts drawTextTiny8(20, 360, "Tiny 8 font - Dense and fast to draw", 0XFF, rgb332(1,1,1)); drawTextVGA437(20, 372, "Block 437 font- Classic IBM font from 1982 - fast to draw", 0XFF, rgb332(1,1,1)); drawTextBigFont_16x16(20, 385, "Blocky 16x16 font - bold, low density", 0XFF, rgb332(1,1,1)); drawTextArialBold_16x16(20, 403, "Arial 16x16 font - lower density ", 0XFF, rgb332(1,1,1)); drawTextArial24(20, 420, "Arial 16x24 font - clean, medium font", 0XFF, rgb332(1,1,1)); drawTextGrotesk32(20, 443, "Grotesk32 font - bigger titles", 0XFF, rgb332(1,1,1)); // drawTextTiny8(444, 55, "Grey Scale", 0xff, rgb332(1,1,1)); // fill test 2000 circles is about the limit // above that get flicker or nothing // prazctical limit is ~500 // for (int i=0; i<500; i++){ // fillCircle(i, 240, 5, 0xff); // } // line and text maek sure we are drawing whole screen sprintf(str,"core_temp=%4.1f C", core_temp) ; drawTextVGA437(328, 22, str, 0xff, rgb332(1,1,1)); // drawHLine(200, 479, 200, 0xff); gpio_put(2,0); // NEVER exit WHILE in a thread } // END WHILE(1) // every thread ends with PT_END(pt); PT_END(pt); } // end blink thread // ================================================== // ADC read thread protothread // ================================================== // this currently reads the internal temperature // and populates a circuilar buffer 100 long static PT_THREAD (protothread_temp(struct pt *pt)){ PT_BEGIN(pt); const float conversion_factor = 3.3f / 4096.0f ; adc_init(); adc_set_temp_sensor_enabled(true); adc_select_input(4); while(true) { PT_YIELD_usec(1000000); // conver to volts float result = (float)adc_read() * conversion_factor; //printf("adc %d v %f \n", adc_read(), result); /// convert volts to ~temp (from hardare manual) core_temp = 27.0f - (result -0.706f)/0.001721f ; } PT_END(pt); } // ======================================== // === core 1 main -- started in main below // ======================================== void core1_main(){ // === add threads ==================== // for core 1 pt_add_thread(protothread_temp); // // === initalize the scheduler ========== pt_sched_method = SCHED_ROUND_ROBIN ; pt_schedule_start ; // NEVER exits // ====================================== } // ======================================== // === core 0 main // ======================================== // VREG_VOLTAGE_1_30 = 0b01111, // 300 MHz // #if !PICO_RP2040 // // Above this point you will need to set POWMAN_VREG_CTRL_DISABLE_VOLTAGE_LIMIT // VREG_VOLTAGE_1_35 = 0b10000, // VREG_VOLTAGE_1_40 = 0b10001, // 450 MHz // VREG_VOLTAGE_1_50 = 0b10010, int main(){ // set the core voltage only necessarey for 300 MHz vreg_disable_voltage_limit (); vreg_set_voltage(VREG_VOLTAGE_1_30 ); // set the clock 250 works set_sys_clock_khz (300000, false); //375 // stablize clock sleep_ms(10); // record clock for HSTX setup sys_clock_actual = clock_get_hz(clk_sys) ; //=== start the serial i/o ================== stdio_init_all() ; // announce the threader version on system reset // if there is a seral terminal attached printf("\n\rProtothreads RP2040 v1.4 two-core, priority\n\r"); // fire up the HSTX DVIinit() ; // JUIST FOR TIMING gpio_init(2) ; gpio_set_dir(2, GPIO_OUT) ; // start core 1 threads multicore_reset_core1(); multicore_launch_core1(&core1_main); // === config threads ======================== // for core 0 two threads pt_add_thread(protothread_dvi); //pt_add_thread(protothread_serial); // === initalize the scheduler =============== // method is either: // SCHED_PRIORITY or SCHED_ROUND_ROBIN pt_sched_method = SCHED_ROUND_ROBIN ; pt_schedule_start ; // !!pt_schedule_start NEVER exits // =========================================== } // end main /////////// // end //// ///////////