tmk
9 years ago
1 changed files with 18 additions and 2 deletions
+ 18
- 2
protocol/serial_soft.c
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| /* signal state: IDLE: ON, START: OFF, STOP: ON, DATA0: OFF, DATA1: ON */ | /* signal state: IDLE: ON, START: OFF, STOP: ON, DATA0: OFF, DATA1: ON */ | ||||
| #ifdef SERIAL_SOFT_BIT_ORDER_MSB | #ifdef SERIAL_SOFT_BIT_ORDER_MSB | ||||
| #ifdef SERIAL_SOFT_DATA_7BIT | |||||
| uint8_t mask = 0x40; | |||||
| #else | |||||
| uint8_t mask = 0x80; | uint8_t mask = 0x80; | ||||
| #endif | |||||
| #else | #else | ||||
| uint8_t mask = 0x01; | uint8_t mask = 0x01; | ||||
| #endif | #endif | ||||
| SERIAL_SOFT_TXD_OFF(); | SERIAL_SOFT_TXD_OFF(); | ||||
| _delay_us(WAIT_US); | _delay_us(WAIT_US); | ||||
| while (mask) { | |||||
| #ifdef SERIAL_SOFT_DATA_7BIT | |||||
| while (mask&0x7F) { | |||||
| #else | |||||
| while (mask&0xFF) { | |||||
| #endif | |||||
| if (data&mask) { | if (data&mask) { | ||||
| SERIAL_SOFT_TXD_ON(); | SERIAL_SOFT_TXD_ON(); | ||||
| parity ^= 1; | parity ^= 1; | ||||
| uint8_t data = 0; | uint8_t data = 0; | ||||
| #ifdef SERIAL_SOFT_BIT_ORDER_MSB | #ifdef SERIAL_SOFT_BIT_ORDER_MSB | ||||
| #ifdef SERIAL_SOFT_DATA_7BIT | |||||
| uint8_t mask = 0x40; | |||||
| #else | |||||
| uint8_t mask = 0x80; | uint8_t mask = 0x80; | ||||
| #endif | |||||
| #else | #else | ||||
| uint8_t mask = 0x01; | uint8_t mask = 0x01; | ||||
| #endif | #endif | ||||
| #else | #else | ||||
| mask <<= 1; | mask <<= 1; | ||||
| #endif | #endif | ||||
| } while (mask); | |||||
| #ifdef SERIAL_SOFT_DATA_7BIT | |||||
| } while (mask&0x7F); | |||||
| #else | |||||
| } while (mask&0xFF); | |||||
| #endif | |||||
| #if defined(SERIAL_SOFT_PARITY_EVEN) || defined(SERIAL_SOFT_PARITY_ODD) | #if defined(SERIAL_SOFT_PARITY_EVEN) || defined(SERIAL_SOFT_PARITY_ODD) | ||||
| /* to center of parity bit */ | /* to center of parity bit */ |
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