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| author | tmk <nobody@nowhere> | 2013-11-02 03:06:51 +0900 |
|---|---|---|
| committer | tmk <nobody@nowhere> | 2013-11-02 03:07:59 +0900 |
| commit | 1591764cfbc39e73c6f32e9b805d596379866ff0 (patch) | |
| tree | 4579897cd2b9a862236340b29ab1a1a9f830019a | |
| parent | eea3b699a6cf9976fc0179633feee6d079e5db78 (diff) | |
| download | qmk_firmware-1591764cfbc39e73c6f32e9b805d596379866ff0.tar.gz qmk_firmware-1591764cfbc39e73c6f32e9b805d596379866ff0.zip | |
Tweak time values of busywait PS/2
| -rw-r--r-- | protocol/ps2.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/protocol/ps2.c b/protocol/ps2.c index ed4560910..4c6c2fcb2 100644 --- a/protocol/ps2.c +++ b/protocol/ps2.c | |||
| @@ -109,12 +109,12 @@ uint8_t ps2_host_send(uint8_t data) | |||
| 109 | #endif | 109 | #endif |
| 110 | /* terminate a transmission if we have */ | 110 | /* terminate a transmission if we have */ |
| 111 | inhibit(); | 111 | inhibit(); |
| 112 | _delay_us(100); | 112 | _delay_us(200); // at least 100us |
| 113 | 113 | ||
| 114 | /* start bit [1] */ | 114 | /* start bit [1] */ |
| 115 | data_lo(); | 115 | data_lo(); |
| 116 | clock_hi(); | 116 | clock_hi(); |
| 117 | WAIT(clock_lo, 15000, 1); | 117 | WAIT(clock_lo, 20000, 10); // may take 15ms at most until device starts clocking |
| 118 | /* data [2-9] */ | 118 | /* data [2-9] */ |
| 119 | for (uint8_t i = 0; i < 8; i++) { | 119 | for (uint8_t i = 0; i < 8; i++) { |
| 120 | _delay_us(15); | 120 | _delay_us(15); |
| @@ -167,7 +167,7 @@ uint8_t ps2_host_recv_response(void) | |||
| 167 | idle(); | 167 | idle(); |
| 168 | 168 | ||
| 169 | /* wait start bit */ | 169 | /* wait start bit */ |
| 170 | wait_clock_lo(2000); | 170 | wait_clock_lo(25000); // command response may take 20 ms at most |
| 171 | data = recv_data(); | 171 | data = recv_data(); |
| 172 | 172 | ||
| 173 | inhibit(); | 173 | inhibit(); |