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ibmpc_usb: Fix hard reset code

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This commit is contained in:
tmk 2020-01-23 23:40:04 +09:00
parent c2e8c0d43e
commit a42cc4bddb
3 changed files with 24 additions and 13 deletions
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19
converter/ibmpc_usb/config.h
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@ -44,32 +44,39 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
* Pin and interrupt configuration
*/
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega32U2__) || defined(__AVR_AT90USB1286__)
/* uses INT1 for clock line */
/* clock line */
#define IBMPC_CLOCK_PORT PORTD
#define IBMPC_CLOCK_PIN PIND
#define IBMPC_CLOCK_DDR DDRD
#define IBMPC_CLOCK_BIT 1
/* data line */
#define IBMPC_DATA_PORT PORTD
#define IBMPC_DATA_PIN PIND
#define IBMPC_DATA_DDR DDRD
#define IBMPC_DATA_BIT 0
/* reset line */
#define IBMPC_RST_PORT PORTB
#define IBMPC_RST_PIN PINB
#define IBMPC_RST_DDR DDRB
#define IBMPC_RST_BIT1 6
#define IBMPC_RST_BIT2 7
/* reset for XT keyboard: low pulse for 500ms and after that HiZ for safety */
#define IBMPC_RESET() do { \
/* reset for XT Type-1 keyboard: low pulse for 500ms */
#define IBMPC_RST_HIZ() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT2); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT2); \
} while (0)
#define IBMPC_RST_LO() do { \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT1); \
IBMPC_RST_PORT &= ~(1<<IBMPC_RST_BIT2); \
IBMPC_RST_DDR |= (1<<IBMPC_RST_BIT2); \
_delay_ms(500); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT1); \
IBMPC_RST_DDR &= ~(1<<IBMPC_RST_BIT2); \
} while (0)
/* interrupt for clock line */
#define IBMPC_INT_INIT() do { \
EICRA |= ((1<<ISC11) | \
(0<<ISC10)); \