}\r
\r
/** ISR to manage the TPI software USART when bit-banged TPI USART mode is selected. */\r
-ISR(TIMER1_COMPB_vect, ISR_BLOCK)\r
+ISR(TIMER1_CAPT_vect, ISR_BLOCK)\r
{\r
/* Toggle CLOCK pin in a single cycle (see AVR datasheet) */\r
BITBANG_TPICLOCK_PIN |= BITBANG_TPICLOCK_MASK;\r
/* Set DATA line high for idle state */\r
BITBANG_TPIDATA_PORT |= BITBANG_TPIDATA_MASK;\r
\r
- /* Fire timer capture channel B ISR to manage the software USART */\r
- OCR1B = BITS_BETWEEN_USART_CLOCKS;\r
- TCCR1B = (1 << WGM12) | (1 << CS10);\r
- TIMSK1 = (1 << OCIE1B);\r
+ /* Fire timer capture channel ISR to manage the software USART */\r
+ ICR1 = BITS_BETWEEN_USART_CLOCKS;\r
+ TCCR1B = (1 << WGM13) | (1 << WGM12) | (1 << CS10);\r
+ TIMSK1 = (1 << ICIE1);\r
#endif\r
\r
/* Send two BREAKs of 12 bits each to enable TPI interface (need at least 16 idle bits) */\r