ibmpc: Fix debug print and wait time
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83ebf5212d
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1 changed files with 5 additions and 5 deletions
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@ -175,9 +175,8 @@ int16_t ibmpc_host_recv(void)
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}
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}
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}
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}
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if (ret != 0xFF) {
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if (ret != 0xFF) dprintf("r%02X ", ret);
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dprintf("r%02X(%04X) ", ret, recv_data);
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if (recv_data != 0xFFFF) dprintf("b%04X ", recv_data);
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}
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return ((ret != 0xFF) ? ret : -1);
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return ((ret != 0xFF) ? ret : -1);
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}
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}
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@ -206,13 +205,14 @@ ISR(IBMPC_INT_VECT)
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{
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{
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uint8_t dbit;
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uint8_t dbit;
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dbit = IBMPC_DATA_PIN&(1<<IBMPC_DATA_BIT);
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dbit = IBMPC_DATA_PIN&(1<<IBMPC_DATA_BIT);
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PINB|=0x01;
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isr_data = isr_data>>1;
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isr_data = isr_data>>1;
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if (dbit) isr_data |= 0x8000;
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if (dbit) isr_data |= 0x8000;
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// isr_data: state of receiving data from keyboard
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// isr_data: state of receiving data from keyboard
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// 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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// 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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// -----------------------------------------------------
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// -----------------------------------------------------
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// Initial: *1 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0
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// Initial: *1 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 MSB sentinel
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// XT IBM: b7 b6 b5 b4 b3 b2 b1 b0 | s1 s0 *1 0 0 0 0 0 after receiving **
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// XT IBM: b7 b6 b5 b4 b3 b2 b1 b0 | s1 s0 *1 0 0 0 0 0 after receiving **
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// XT Clone: b7 b6 b5 b4 b3 b2 b1 b0 | s1 *1 0 0 0 0 0 0 after receiving
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// XT Clone: b7 b6 b5 b4 b3 b2 b1 b0 | s1 *1 0 0 0 0 0 0 after receiving
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// AT: st pr b7 b6 b5 b4 b3 b2 | b1 b0 s0 *1 0 0 0 0 after receiving
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// AT: st pr b7 b6 b5 b4 b3 b2 | b1 b0 s0 *1 0 0 0 0 after receiving
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@ -253,7 +253,7 @@ ISR(IBMPC_INT_VECT)
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break;
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break;
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case 0b10100000:
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case 0b10100000:
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{
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{
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uint8_t us = 150;
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uint8_t us = 100;
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// wait for rising and falling edge of AT stop bit
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// wait for rising and falling edge of AT stop bit
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while (!(IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT)) && us) { wait_us(1); us--; }
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while (!(IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT)) && us) { wait_us(1); us--; }
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while ( IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT) && us) { wait_us(1); us--; }
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while ( IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT) && us) { wait_us(1); us--; }
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