c43cbfd9d9
Bumping version number and changing example. Interrupt WDT now makes example flaky so changing.
68 lines
2.3 KiB
Forth
68 lines
2.3 KiB
Forth
\ Copyright 2021 Bradley D. Nelson
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\
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\ Licensed under the Apache License, Version 2.0 (the "License");
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\ you may not use this file except in compliance with the License.
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\ You may obtain a copy of the License at
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\
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\ http://www.apache.org/licenses/LICENSE-2.0
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\
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\ Unless required by applicable law or agreed to in writing, software
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\ distributed under the License is distributed on an "AS IS" BASIS,
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\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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\ See the License for the specific language governing permissions and
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\ limitations under the License.
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internals definitions
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transfer timers-builtins
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forth definitions
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( Lazy loaded timers )
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: timers r|
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vocabulary timers timers definitions
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also registers also interrupts also internals
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transfer timers-builtins
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( Initialize all timers, to mimic pre-2.0 behavior. )
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0 0 timer_init_null
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0 1 timer_init_null
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1 0 timer_init_null
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1 1 timer_init_null
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( 0-4 -> two cells )
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: t>nx ( t -- n x ) dup 2/ 1 and swap 1 and ;
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create tmp 2 cells allot
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: timer@ ( t -- lo hi ) t>nx tmp timer_get_counter_value throw tmp 2@ ;
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: timer! ( lo hi t -- ) >r tmp 2! r> t>nx tmp timer_set_counter_value throw ;
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: alarm@ ( t -- lo hi ) t>nx tmp timer_get_alarm_value throw tmp 2@ ;
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: alarm! ( lo hi t -- ) >r tmp 2! r> t>nx tmp timer_set_alarm_value throw ;
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: enable! ( v t )
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swap >r t>nx r> if timer_start else timer_pause then throw ;
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: increase! ( v t ) swap >r t>nx r> timer_set_counter_mode throw ;
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: autoreload! ( v t ) swap >r t>nx r> timer_set_auto_reload throw ;
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: divider! ( v t ) swap >r t>nx r> timer_set_divider throw ;
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: alarm-enable! ( v t ) swap >r t>nx r> timer_set_alarm throw ;
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: int-enable! ( f t -- )
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swap >r t>nx r> if timer_enable_intr else timer_disable_intr then throw ;
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: onalarm ( xt t ) swap >r t>nx r>
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0 ESP_INTR_FLAG_EDGE timer_isr_callback_add throw ;
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: interval ( xt usec t ) 0 over enable!
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0 over int-enable!
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80 over divider!
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swap over 0 swap alarm!
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dup >r onalarm r>
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dup >r 0 0 r> timer!
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1 over increase!
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1 over autoreload!
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1 over alarm-enable!
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1 over int-enable!
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1 swap enable! ;
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only forth definitions
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timers
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| evaluate ;
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