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Add flow control by firmware to serial_uart

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tmk 2014-07-20 14:42:44 +09:00
parent 50bcaa66c4
commit 3e7875455e
4 changed files with 30 additions and 9 deletions
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17
keyboard/hhkb_rn42/config.h
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@ -57,20 +57,23 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define RTSEN 0
#define CTSEN 1
#define SERIAL_UART_BAUD 115200
#define SERIAL_UART_DATA UDR1
#define SERIAL_UART_UBRR ((F_CPU/(16.0*SERIAL_UART_BAUD)-1+0.5))
#define SERIAL_UART_RXD_VECT USART1_RX_vect
#define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
#define SERIAL_UART_INIT() do { \
#define SERIAL_UART_BAUD 115200
#define SERIAL_UART_DATA UDR1
#define SERIAL_UART_UBRR ((F_CPU/(16.0*SERIAL_UART_BAUD)-1+0.5))
#define SERIAL_UART_RXD_VECT USART1_RX_vect
#define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
#define SERIAL_UART_INIT() do { \
UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
UBRR1H = ((uint16_t)SERIAL_UART_UBRR>>8); /* baud rate */ \
UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
UCSR1B |= (0<<TXCIE1) | (1<<TXEN1); /* TX interrupt, TX: enable */ \
UCSR1C |= (0<<UPM11) | (0<<UPM10); /* parity: none(00), even(01), odd(11) */ \
UCSR1D |= (0<<RTSEN) | (0<<CTSEN); /* RTS, CTS */ \
UCSR1D |= (0<<RTSEN) | (0<<CTSEN); /* RTS, CTS(no flow control by hardware) */ \
DDRD |= (1<<5); PORTD &= ~(1<<5); /* RTS for flow control by firmware */ \
sei(); \
} while(0)
#define SERIAL_UART_RTS_LO() do { PORTD &= ~(1<<5); } while (0)
#define SERIAL_UART_RTS_HI() do { PORTD |= (1<<5); } while (0)
#else
#error "USART configuration is needed."
#endif