A fork of pulp-os for the xteink4 adding custom apps
add: wfi, shut off display
+6
-3
+2
-3
src/bin/main.rs
+2
-3
src/bin/main.rs
···
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123
}
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// 2. Check wake events (non-blocking).
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-
// When nothing is pending, idle briefly so we don't spin at full speed.
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-
// TODO: replace with proper WFI once esp-hal wake sources are configured.
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+
// When nothing is pending, WFI suspends the core until the next interrupt.
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let should_poll = match try_wake() {
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128
Some(WakeReason::Timer) | Some(WakeReason::Multiple) => poller.tick(),
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129
···
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}
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None => {
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-
delay.delay_millis(1);
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+
pulp_os::kernel::wake::wait_for_interrupt();
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continue;
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}
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144
};
+4
src/board/display.rs
+4
src/board/display.rs
···
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251
// This is writeImageAgain() in GxEPD2
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self.write_image_partial_physical(cmd::WRITE_RAM_RED, px, py, pw, ph);
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self.write_image_partial_physical(cmd::WRITE_RAM_BW, px, py, pw, ph);
254
+
255
+
// Step 4: Power off display controller to save power.
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+
// E-paper retains image without power. Leaving it on draws ~15mA idle.
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+
self.power_off(delay);
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}
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/// Transform logical region to physical region based on rotation