serial interface (USART / RS232 / RS485) functions are provided in the librariesLIB/usart_lib.bas | |
| connections |
16f628 --- MAX232 --- DB9 connections
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| USART_disable_TX_interrupt |
disable USART transmiter interrupt
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| USART_enable_TX_interrupt |
enable USART transmiter interrupt
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| USART_disable_RX_interrupt |
disable USART receiver interrupt
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| USART_enable_RX_interrupt |
enable USART receiver interrupt
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| USART_enable_TX |
enable USART transmiter hardware
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| USART_disable_TX |
disable USART transmiter hardware
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| USART_enable_RX |
enable USART receiver hardware
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| USART_disable_RX |
disable USART receiver hardware
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| USART_TX_shift_register_empty |
check if USART transmiter shift register is empty
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| USART_TX_empty |
check if USART transmit buffer is empty
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| USART_RX_full |
check if USART receive buffer is full
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| USART_init |
initalise USART hardware
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| USART_send_poll |
send byte via USART (simple polled version)
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| USART_read_poll |
read byte via USART (simple polled version)
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| USART_send_str_poll |
send string via USART (from RAM, simple polled version)
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| USART_send_str_poll_code |
send string via USART (from code memory, simple polled version)
|
| interrupt driven | |
| USART_send |
send byte via USART (interrupt driven version)
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| USART_read |
read byte via USART (interrupt driven version)
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| USART_send_str |
send string via USART (from RAM, interrupt driven version)
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| USART_send_str_code |
send string via USART (from code memory, interrupt driven version)
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| USART_service_RX |
service receiver (part of USART interrupt handler)
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| USART_service_TX |
service transmiter (part of USART interrupt handler)
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