Author | Stef Mientki, Copyright © 2002..2006, all rights reserved. |
Adapted-by | Sebastien Lelong, Rob Hamerling. |
Compiler | 2.4o |
USART2 hardware control. Routines for sending and receiving through the second [E]USART2
- See also the notes in serial_hardware library. - When the physical locations of pin_TX and pin_RX are configurable for a specific PIC, the device file will probably contain names like pin_TX2_RC2 and pin_RX2_RC1 and another pair with other pin suffixes. Depending for which pair of pins the USART is configured aliases without suffixes have to be specified, like: alias pin_TX2 is pin_TX2_RC2 alias pin_RX2 is pin_RX2_RC1 alias pin_TX2_direction is pin_TX2_RC2_direction alias pin_RX2_direction is pin_RX2_RC1_direction
serial_hw2_init()
serial_hw2_write(byte in data)
serial_hw2_enable()
serial_hw2_data_raw'put(byte in data)
serial_hw2_data'put(byte in data)
serial_hw2_write_word(word in data)
serial_hw2_disable()
serial_hw2_data_raw'get() return byte
serial_hw2_data'get() return byte
serial_hw2_read(byte out data) return bit
serial_hw2_init()
Title: Initialize second serial port Arguments: (none) Returns: (nothing)
serial_hw2_write(byte in data)
Title: Transmit character Arguments: Data (byte) to transmit Returns: (nothing) Notes: Hardware transmit buffer must be empty, wait if necessary
serial_hw2_enable()
Title: Enable USART2 Arguments: (none) Returns: (nothing) Title: Re-enable USART after use of serial_hw2_disable()
serial_hw2_data_raw'put(byte in data)
These are real raw procedures, declared as pseudo variables the user is totally responsible for testing the transmit/receive flag before using these functions
serial_hw2_data'put(byte in data)
Title: Transmit byte Arguments: Data (byte) to be transmitted Returns: (nothing) Notes: This pseudo variable allows a language construct like serial_hw2_data =to transmit a byte to the seial port
serial_hw2_write_word(word in data)
Title: Transmit word Arguments: Data (word) to transmit Returns: (nothing) Notes: Send word as 2 bytes, Most Significant Byte first. See also serial_hw_write()
serial_hw2_disable()
Title: Disable USART2 Arguments: (none) Returns: (nothing) Notes: Allows pins to be used (temporary) for other purposes. USART can be enabled again by calling serial_hw2_enable()
serial_hw2_data_raw'get() return byte
No documentation found
serial_hw2_data'get() return byte
Title: Receive byte Arguments: (none) Returns: Data (byte) received Notes: This pseudo variable allows a language construct like databyte = serial_hw2_data to receive a byte from the serial port into variable 'databyte'
serial_hw2_read(byte out data) return bit
Title: Receive byte Arguments: (none) Returns: bit: TRUE data available FALSE no data available
_serial_hw2_read(byte out data) return bit
Title: Receive byte Arguments: (none) Returns: bit: TRUE data available FALSE no data available Notes: Using this inline function for serial_hw_data'get saves a stack level With overrun error the USART is reset (error(?)byte is returned!)
16f1947 | 16f1947_serial_hardware2.jal |
18f25k22 | 18f25k22_eusart2.jal |
18f27j53 | 18f27j53_xbee_api_rx.jal |
18f27j53 | 18f27j53_pps_rx2tx2.jal |
18f6722 | 18f6722_serial_hardware2.jal |