added wait-micros function
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@ -7,8 +7,9 @@ control.inBackground(() => {
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});
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control.reset();
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control.waitMicros(4);
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```
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### See Also
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[inBackground](/reference/control/in-background), [reset](/reference/control/reset)
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[inBackground](/reference/control/in-background), [reset](/reference/control/reset), [wait-micros](/reference/control/wait-micros)
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32
docs/reference/control/wait-micros.md
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32
docs/reference/control/wait-micros.md
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@ -0,0 +1,32 @@
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# WaitMicros
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Blocks the current fiber for the given amount of micro-seconds.
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```sig
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control.waitMicros(4)
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```
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### Example
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This program sends a 10 micro-second HIGH pulse through pin ``P0``.
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```blocks
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// ensure pin is low to send a clean pulse
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pins.digitalWritePin(DigitalPin.P0, 0)
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control.waitMicros(2)
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// set pin to 1 and wait 10 micros
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pins.digitalWritePin(DigitalPin.P0, 1)
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control.waitMicros(10)
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// finish pulse
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pins.digitalWritePin(DigitalPin.P0, 0)
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```
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#### ~hint
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This function is not supported in the simulator.
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#### ~
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### See Also
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[pause](/reference/basic/pause)
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@ -129,12 +129,22 @@ namespace control {
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/**
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* Resets the BBC micro:bit.
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*/
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//% weight=30 async help=control/reset
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//% weight=30 async help=control/reset blockGap=8
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//% blockId="control_reset" block="reset"
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void reset() {
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microbit_reset();
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}
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/**
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* Blocks the current fiber for the given microseconds
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* @param micros number of micro-seconds to wait. eg: 4
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*/
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//% help=control/wait-micros weight=29
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//% blockId="control_wait_us" block="wait (µs)%micros"
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void waitMicros(int micros) {
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wait_us(micros);
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}
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/**
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* Raises an event in the event bus.
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* @param src ID of the MicroBit Component that generated the event e.g. MICROBIT_ID_BUTTON_A.
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10
libs/microbit/shims.d.ts
vendored
10
libs/microbit/shims.d.ts
vendored
@ -333,10 +333,18 @@ declare namespace control {
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/**
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* Resets the BBC micro:bit.
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*/
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//% weight=30 async help=control/reset
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//% weight=30 async help=control/reset blockGap=8
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//% blockId="control_reset" block="reset" shim=control::reset
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function reset(): void;
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/**
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* Blocks the current fiber for the given microseconds
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* @param micros number of micro-seconds to wait. eg: 4
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*/
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//% help=control/wait-micros weight=29
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//% blockId="control_wait_us" block="wait (µs)%micros" shim=control::waitMicros
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function waitMicros(micros: number): void;
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/**
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* Raises an event in the event bus.
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* @param src ID of the MicroBit Component that generated the event e.g. MICROBIT_ID_BUTTON_A.
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@ -227,6 +227,10 @@ namespace pxsim.control {
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U.userError("reset not implemented in simulator yet")
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}
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export function waitMicros(micros: number) {
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// TODO
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}
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export function deviceName(): string {
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let b = board();
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return b && b.id
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