ad hoc fix for wrong bit read problem of adb.c.
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14bc377866
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6cdfdece60
@ -38,6 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
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#include <stdbool.h>
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#include <stdbool.h>
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#include <util/delay.h>
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#include <util/delay.h>
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#include <avr/io.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include "adb.h"
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#include "adb.h"
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@ -85,8 +86,13 @@ uint16_t adb_host_kbd_recv(void)
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return 0; // No data to send
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return 0; // No data to send
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if (!read_bit()) // Startbit(1)
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if (!read_bit()) // Startbit(1)
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return -2;
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return -2;
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// ad hoc fix: without block inerrupt read wrong bit occasionally and get keys stuck
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cli();
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data = read_byte();
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data = read_byte();
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data = (data<<8) | read_byte();
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data = (data<<8) | read_byte();
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sei();
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if (read_bit()) // Stopbit(0)
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if (read_bit()) // Stopbit(0)
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return -3;
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return -3;
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return data;
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return data;
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