giomba/ceda2vga
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giomba 2022-10-16 20:18:00 +02:00
parent 1d68748f50
commit 7a79fdd6d8
1 changed files with 15 additions and 7 deletions
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22
src/main.c
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@ -139,12 +139,20 @@ int main()
// clear frame buffer
memset(&frames[0].data[0], 0, sizeof(frames[0].data));
// horizontal line
for (uint16_t x = 400; x < 620; ++x)
set_pixel(x, 64);
// vertical line
for (uint16_t y = 20; y < 460; ++y)
set_pixel(400, y);
// horizontal lines
for (uint16_t x = 0; x < 640; ++x)
{
set_pixel(x, 4);
set_pixel(x, 244);
set_pixel(x, 484);
}
// vertical lines
for (uint16_t y = 3; y < 483; ++y)
{
set_pixel(0, y);
set_pixel(480, y);
set_pixel(640, y);
}
// PIO and state machines
PIO pio = pio0;
@ -199,7 +207,7 @@ int main()
irq_set_exclusive_handler(DMA_IRQ_0, dma_handler);
irq_set_enabled(DMA_IRQ_0, true);
dma_channel_configure(dma_channel, &dma_config, &pio0_hw->txf[2], &frames[0].data[0], 38400,
dma_channel_configure(dma_channel, &dma_config, &pio0_hw->txf[2], &frames[0].data[0], 10000,
false);
dma_ready = true;