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Working version before cleanup

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This commit is contained in:
Wayne Venables
2025-08-19 23:07:14 -07:00
parent 8dc07c1b25
commit 3ec35313df
6 changed files with 238 additions and 42 deletions
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58
examples/CMakeLists.txt
View File

@@ -1,30 +1,30 @@
add_subdirectory(vga_ants)
add_subdirectory(vga_balloons)
add_subdirectory(vga_draw)
add_subdirectory(vga_earth)
add_subdirectory(vga_eggs)
add_subdirectory(vga_fifteen)
add_subdirectory(vga_flag)
add_subdirectory(vga_ghostracing)
add_subdirectory(vga_gingerhouse)
#add_subdirectory(vga_ants)
#add_subdirectory(vga_balloons)
#add_subdirectory(vga_draw)
#add_subdirectory(vga_earth)
#add_subdirectory(vga_eggs)
#add_subdirectory(vga_fifteen)
#add_subdirectory(vga_flag)
#add_subdirectory(vga_ghostracing)
#add_subdirectory(vga_gingerhouse)
add_subdirectory(vga_hello)
add_subdirectory(vga_hypno)
add_subdirectory(vga_levelmeter)
add_subdirectory(vga_life)
add_subdirectory(vga_lines)
add_subdirectory(vga_mandelbrot)
add_subdirectory(vga_matrixrain)
add_subdirectory(vga_maze)
add_subdirectory(vga_monoscope)
add_subdirectory(vga_oscilloscope)
add_subdirectory(vga_pacman)
add_subdirectory(vga_pi)
add_subdirectory(vga_pixels)
add_subdirectory(vga_raytrace)
add_subdirectory(vga_sokoban)
add_subdirectory(vga_spheres)
add_subdirectory(vga_spots)
add_subdirectory(vga_tetris)
add_subdirectory(vga_train)
add_subdirectory(vga_twister)
add_subdirectory(vga_watersurface)
#add_subdirectory(vga_hypno)
#add_subdirectory(vga_levelmeter)
#add_subdirectory(vga_life)
#add_subdirectory(vga_lines)
#add_subdirectory(vga_mandelbrot)
#add_subdirectory(vga_matrixrain)
#add_subdirectory(vga_maze)
#add_subdirectory(vga_monoscope)
#add_subdirectory(vga_oscilloscope)
#add_subdirectory(vga_pacman)
#add_subdirectory(vga_pi)
#add_subdirectory(vga_pixels)
#add_subdirectory(vga_raytrace)
#add_subdirectory(vga_sokoban)
#add_subdirectory(vga_spheres)
#add_subdirectory(vga_spots)
#add_subdirectory(vga_tetris)
#add_subdirectory(vga_train)
#add_subdirectory(vga_twister)
#add_subdirectory(vga_watersurface)

3
examples/vga_hello/CMakeLists.txt
View File

@@ -12,5 +12,8 @@ target_include_directories(vga_hello PRIVATE
${CMAKE_CURRENT_LIST_DIR}/src
)
pico_enable_stdio_usb(vga_hello 1)
# create map/bin/hex file etc.
pico_add_extra_outputs(vga_hello)

62
examples/vga_hello/src/main.cpp
View File

@@ -7,16 +7,76 @@
#include "picovga.h"
#include "pico/stdlib.h"
#include "pico/time.h"
#include <stdio.h>
#include <hardware/structs/dma.h>
#include "vga_config.h"
#include "hardware/pio.h"
extern volatile uint32_t g_isr_count; // how many times VgaLine() fired
extern volatile uint32_t g_last_scanline; // last ScanLine observed in ISR
extern volatile uint32_t g_last_linetype; // last linetype observed in ISR
// Draw box
ALIGNED u8 Box[512*400];
int main()
{
// initialize videomode
stdio_init_all();
sleep_ms(10000); // allow USB CDC to connect (helpful on some hosts)
printf("\n\nPicoVGA test\n");
// initialize videomode
Video(DEV_VGA, RES_EGA, FORM_8BIT, Box);
sleep_ms(1000);
// draw text
DrawText(&Canvas, "Hello World!", (512-12*8*4)/2, (400-8*4)/2,
COL_WHITE, FontBoldB8x16, 16, 4, 4);
uint32_t last = 0;
absolute_time_t next = make_timeout_time_ms(1000);
while (true) {
if (absolute_time_diff_us(get_absolute_time(), next) <= 0) {
uint32_t now = g_isr_count;
uint32_t delta = now - last;
last = now;
printf("ISR/s=%lu last_scanline=%lu last_linetype=%lu\n",
(unsigned long)delta,
(unsigned long)g_last_scanline,
(unsigned long)g_last_linetype);
uint32_t c = dma_hw->ch[VGA_DMA_PIO0].ctrl_trig;
uint32_t i = dma_hw->ints0;
printf("DMA_PIO0: BUSY=%u AHB_ERR=%u READ_ERR=%u WRITE_ERR=%u ints0=0x%08lx\n",
(c >> DMA_CH0_CTRL_TRIG_BUSY_LSB) & 1,
(c >> DMA_CH0_CTRL_TRIG_AHB_ERROR_LSB) & 1,
(c >> DMA_CH0_CTRL_TRIG_READ_ERROR_LSB) & 1,
(c >> DMA_CH0_CTRL_TRIG_WRITE_ERROR_LSB) & 1,
(unsigned long)i);
printf("DATA: cnt=%u rd=%08x wr=%08x ctrl=%08x\n",
dma_hw->ch[VGA_DMA_PIO0].transfer_count,
(unsigned)dma_hw->ch[VGA_DMA_PIO0].read_addr,
(unsigned)&VGA_PIO->txf[VGA_SM(0)],
dma_hw->ch[VGA_DMA_PIO0].ctrl_trig);
printf("CB0: cnt=%u rd=%08x wr=%08x ctrl=%08x\n",
dma_hw->ch[VGA_DMA_CB0].transfer_count,
(unsigned)dma_hw->ch[VGA_DMA_CB0].read_addr,
(unsigned)&dma_hw->ch[VGA_DMA_PIO0].al3_transfer_count,
dma_hw->ch[VGA_DMA_CB0].ctrl_trig);
printf("PIO: fstat=%08x txlvl=%u sm0.addr=%02x\n",
VGA_PIO->fstat,
(unsigned)((VGA_PIO->flevel >> (VGA_SM0*8)) & 0x1f),
VGA_PIO->sm[VGA_SM0].addr & 0x1f);
next = make_timeout_time_ms(1000);
}
tight_loop_contents();
}
}