tmk
13 年之前
+ 7
- 1
ps2.c
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| @@ -104,9 +104,9 @@ uint8_t ps2_host_send(uint8_t data) | |||
| /* request to send */ | |||
| clock_lo(); | |||
| data_lo(); | |||
| _delay_us(100); | |||
| /* start bit [1] */ | |||
| data_lo(); | |||
| clock_hi(); | |||
| WAIT(clock_lo, 15000, 1); | |||
| /* data [2-9] */ | |||
| @@ -137,6 +137,9 @@ uint8_t ps2_host_send(uint8_t data) | |||
| return 1; | |||
| ERROR: | |||
| /* inhibit device to send */ | |||
| data_hi(); | |||
| clock_lo(); | |||
| return 0; | |||
| } | |||
| @@ -187,6 +190,9 @@ uint8_t ps2_host_recv(void) | |||
| return data; | |||
| ERROR: | |||
| /* inhibit device to send */ | |||
| data_hi(); | |||
| clock_lo(); | |||
| return 0; | |||
| } | |||
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