mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-17 10:22:01 +03:00
eb2679b982
* add files from f3 * rollback lfs * Move assets from LFS * remove lfs from build Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#include "flipper.h"
|
||
#include "irda_nec.h"
|
||
#include "irda_protocols.h"
|
||
|
||
void ir_nec_preambula(void) {
|
||
// 9ms carrier + 4.5ms pause
|
||
irda_pwm_set(NEC_DUTY_CYCLE, NEC_CARRIER_FREQUENCY);
|
||
delay_us(9000);
|
||
irda_pwm_stop();
|
||
delay_us(4500);
|
||
}
|
||
|
||
void ir_nec_send_bit(bool bit) {
|
||
// 0 is 562.5us carrier + 1687.5us pause
|
||
// 1 is 562.5us carrier + 562.5us pause
|
||
irda_pwm_set(NEC_DUTY_CYCLE, NEC_CARRIER_FREQUENCY);
|
||
delay_us(562.5);
|
||
irda_pwm_stop();
|
||
if(bit) {
|
||
delay_us(562.5);
|
||
} else {
|
||
delay_us(1687.5);
|
||
}
|
||
}
|
||
|
||
void ir_nec_send_byte(uint8_t data) {
|
||
for(uint8_t i = 0; i < 8; i++) {
|
||
ir_nec_send_bit((data & (1 << (i))) != 0);
|
||
}
|
||
}
|
||
|
||
void ir_nec_send(uint8_t addr, uint8_t data) {
|
||
// nec protocol is:
|
||
// preambula + addr + inverse addr + command + inverse command + bit pulse
|
||
//
|
||
// oddly enough, my analyzer (https://github.com/ukw100/IRMP) displays the reverse command
|
||
// and I don’t know if this is my fault or a feature of the analyzer
|
||
// TODO: check the dictionary and check with a known remote
|
||
uint8_t nec_packet[4] = {addr, ~(uint8_t)addr, ~(uint8_t)data, data};
|
||
ir_nec_preambula();
|
||
ir_nec_send_byte(nec_packet[0]);
|
||
ir_nec_send_byte(nec_packet[1]);
|
||
ir_nec_send_byte(nec_packet[2]);
|
||
ir_nec_send_byte(nec_packet[3]);
|
||
ir_nec_send_bit(1);
|
||
} |