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try to fix timeout issue on camera capture

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This commit is contained in:
bunnie 2024-11-14 00:15:51 +08:00
parent 2e25ebff9f
commit c2edfee2fd
1 changed files with 12 additions and 3 deletions
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15
services/bao-video/src/main.rs
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@ -1,7 +1,7 @@
use cramium_hal::iox::IoGpio;
use cramium_hal::iox::{IoxPort, IoxValue};
use cramium_hal::sh1107::{Mono, Oled128x128};
use cramium_hal::udma::PeriphId;
use cramium_hal::udma::{PeriphId, Udma};
use cramium_hal::{minigfx::*, sh1107};
mod gfx;
@ -317,16 +317,25 @@ fn wrapped_main() -> ! {
// clear the front buffer
sh1107.clear();
let mut now = tt.elapsed_ms();
const TIMEOUT_MS: u64 = 100;
#[cfg(feature = "decongest-udma")]
{
// don't parallelize the camera capture to avoid triggering a hardware bug
// in the SPIM block.
while iox.get_gpio_pin_value(IoxPort::PB, 9) == IoxValue::High {}
while iox.get_gpio_pin_value(IoxPort::PB, 9) == IoxValue::High
&& ((tt.elapsed_ms() - now) < TIMEOUT_MS)
{}
cam.capture_async();
}
// wait for the transfer to finish
cam.capture_await(false);
// cam.capture_await(false);
now = tt.elapsed_ms();
while cam.udma_busy(cramium_hal::udma::Bank::Rx) && ((tt.elapsed_ms() - now) < TIMEOUT_MS) {
// busy-wait to get better time resolution on when the frame ends
// xous::yield_slice();
}
let fb: &[u32] = cam.rx_buf();
// fb is an array of IMAGE_WIDTH x IMAGE_HEIGHT x u16