ioqueue - io Sequence operation#
Adapted Air780EP/Air780EPV Air105
Note
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Tip
This library has its own demo,click this link to view ioqueue demo examples
ioqueue.init(hwtimer_id,cmd_cnt,repeat_cnt)#
initialize an io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware timer id, default 0, according to the actual MCU, air105 is 0~5, shared with pwm, the same channel number cannot be both pwm and ioqueue |
int |
A full cycle requires more commands than the actual |
int |
The number of repetitions, the default is 1, if you write 0, it means an infinite number of loops. |
return |
None |
Return Value
None
Examples
ioqueue.init(0,10,5) --Initialize an io operation queue with timer0 as the clock source, with 10 valid commands, loop 5 times
ioqueue.setdelay(hwtimer_id,time_us,time_tick,continue)#
add a delay command to the io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
Delay time,0~65535us |
int |
Delay fine tuning time, 0~255tick, the total delay time is time_us * 1us_tick + time_tick |
boolean |
Whether it is continuous is continuous delay, the default is no, if it is, the timer will not stop but time again after the time is up.， |
Return Value
None
Examples
None
ioqueue.delay(hwtimer_id)#
add a repeat delay to the I/o operation queue. the delay must be setdelay and continuous.
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
return |
None |
Return Value
None
Examples
ioqueue.setdelay(0,9,15,true) --The delay is 9us 15 ticks, and when the delay command is encountered later, the delay will be 9us 15 ticks.tick
ioqueue.delay(0)
ioqueue.setgpio(hwtimer_id,pin,is_input,pull_mode,init_level)#
add the gpio command to the io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
pin |
boolean |
Whether input or not |
int |
pull-up mode, can only be 0,gpio.PULLUP,gpio.PULLDOWN |
int |
Initial output level |
return |
None |
Return Value
None
Examples
ioqueue.setgpio(0,pin.PB01,true,gpio.PULLUP,0) --PB01 Set to pull-up input
ioqueue.setgpio(0,pin.PB01,false,0,1)--PB01 Set to default pull-down output high level
ioqueue.input(hwtimer_id,pin)#
add the read gpio command to the io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
pin |
return |
None |
Return Value
None
Examples
ioqueue.input(0,pin.PB01)
ioqueue.output(hwtimer_id,pin,level)#
Adding Output GPIO Commands to the IO Operation Queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
pin |
int |
Output level |
return |
None |
Return Value
None
Examples
ioqueue.output(0,pin.PB01,0)
ioqueue.set_cap(hwtimer_id,pin,pull_mode,irq_mode,max_tick)#
add settings to the io operation queue to capture a certain IO command
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
pin |
int |
pull-up mode, can only be 0,gpio.PULLUP,gpio.PULLDOWN |
int |
Break mode, can only be gpio.BOTH,gpio.RISING,gpio.FALLING |
int |
The maximum timer time of the timer takes into account that lua is of int type, with a minimum of 0x 10000 and a maximum of 0 x7fffffff, and the default is the maximum value. |
return |
None |
Return Value
None
Examples
ioqueue.setcap(0,pin.PB01,gpio.PULLUP,gpio.FALLING,48000000)
ioqueue.capture(hwtimer_id)#
Add a capture IO status command to the IO operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
return |
None |
Return Value
None
Examples
ioqueue.capture(0)
ioqueue.capend(hwtimer_id,pin)#
Add the IO operation queue to end the capture of an IO command.
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
int |
pin |
return |
None |
Return Value
None
Examples
ioqueue.capend(0,pin.PB01)
ioqueue.get(hwtimer_id, input_buff, capture_buff)#
get the data entered and captured in the io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
zbuff |
The buff that stores IO input data, and stores data in the form of 1byte pin 1byte level |
zbuff |
The buff used to store IO capture data. The data is stored in the form of 1byte pin 1byte level 4byte tick. |
Return Value
return value type |
explanation |
|---|---|
int |
How many groups of IO input data are returned |
int |
How many groups of IO capture data are returned |
Examples
local input_cnt, capture_cnt = ioqueue.get(0, input_buff, capture_buff)
ioqueue.start(hwtimer_id)#
start io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
return |
None |
Return Value
None
Examples
ioqueue.start(0)
ioqueue.stop(hwtimer_id)#
stop the io operation queue, you can start from the beginning
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
Return Value
return value type |
explanation |
|---|---|
int |
Returns the number of cycles that have been performed. If it is 0, it means that none of the cycles have been completed. |
int |
Returns the number of cmds executed in a single loop. If it is 0, it may be that a loop has just ended. |
Examples
ioqueue.stop(0)
ioqueue.release(hwtimer_id)#
release the resources of the I/o operation queue. the resource must be re-used next time.init
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
return |
None |
Return Value
None
Examples
ioqueue.clear(0)
ioqueue.clear(hwtimer_id)#
empty the io operation queue
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
return |
None |
Return Value
None
Examples
ioqueue.clear(0)
ioqueue.done(hwtimer_id)#
Check whether the io operation queue has been completed
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
Hardware Timer id |
Return Value
return value type |
explanation |
|---|---|
boolean |
Queue execution completed， |
Examples
local result = ioqueue.done(0)
ioqueue.exti(pin,pull_mode,irq_mode,onoff)#
Start/stop an external interrupt with a system tick return
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
pin |
int |
pull-up mode, can only be 0,gpio.PULLUP,gpio.PULLDOWN |
int |
Break mode, can only be gpio.BOTH,gpio.RISING,gpio.FALLING |
boolean |
Switch, the default is false off |
return |
None |
Return Value
None
Examples
ioqueue.exti(pin.PB01, gpio.PULLUP, gpio.BOTH, true)
ioqueue.exti(pin.PB01)