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ad hoc fix for wrong bit read problem of adb.c.

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tmk 2012-09-19 12:05:47 +09:00
parent f1a64fc959
commit dd0017558e
1 changed files with 6 additions and 0 deletions
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6
protocol/adb.c
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@ -38,6 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
#include <stdbool.h> #include <stdbool.h>
#include <util/delay.h> #include <util/delay.h>
#include <avr/io.h> #include <avr/io.h>
#include <avr/interrupt.h>
#include "adb.h" #include "adb.h"
@ -85,8 +86,13 @@ uint16_t adb_host_kbd_recv(void)
return 0; // No data to send return 0; // No data to send
if (!read_bit()) // Startbit(1) if (!read_bit()) // Startbit(1)
return -2; return -2;
// ad hoc fix: without block inerrupt read wrong bit occasionally and get keys stuck
cli();
data = read_byte(); data = read_byte();
data = (data<<8) | read_byte(); data = (data<<8) | read_byte();
sei();
if (read_bit()) // Stopbit(0) if (read_bit()) // Stopbit(0)
return -3; return -3;
return data; return data;