tmk
10 lat temu
1 zmienionych plików z 3 dodań i 3 usunięć
+ 3
- 3
protocol/ps2.c
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| #endif | #endif | ||||
| /* terminate a transmission if we have */ | /* terminate a transmission if we have */ | ||||
| inhibit(); | inhibit(); | ||||
| _delay_us(100); | |||||
| _delay_us(200); // at least 100us | |||||
| /* start bit [1] */ | /* start bit [1] */ | ||||
| data_lo(); | data_lo(); | ||||
| clock_hi(); | clock_hi(); | ||||
| WAIT(clock_lo, 15000, 1); | |||||
| WAIT(clock_lo, 20000, 10); // may take 15ms at most until device starts clocking | |||||
| /* data [2-9] */ | /* data [2-9] */ | ||||
| for (uint8_t i = 0; i < 8; i++) { | for (uint8_t i = 0; i < 8; i++) { | ||||
| _delay_us(15); | _delay_us(15); | ||||
| idle(); | idle(); | ||||
| /* wait start bit */ | /* wait start bit */ | ||||
| wait_clock_lo(2000); | |||||
| wait_clock_lo(25000); // command response may take 20 ms at most | |||||
| data = recv_data(); | data = recv_data(); | ||||
| inhibit(); | inhibit(); |