printer.c File Reference

HPGL printer capture code for HP85 disk emulator project for AVR. More...

#include "user_config.h"
#include "defines.h"
#include "drives.h"
#include "gpib_hal.h"
#include "gpib.h"
#include "gpib_task.h"
#include "printer.h"
#include "posix.h"
#include "delay.h"
#include "debug.h"

Go to the source code of this file.

Functions
void	printer_open (char *name)
	Open a file to receive plot data using POSIX functions. More...
void	printer_init ()
	Initialize plotter structures and state. More...
void	printer_close ()
	Close current plot file and reset states. More...
int	receive_plot_flush ()
	Write Plotter data and flush. More...
void	printer_buffer (uint16_t val)
	Buffer Plotter data and flush when buffer is full. More...
int	PRINTER_COMMANDS (uint8_t ch)
	GPIB Secondary Command Printer commands. More...

Variables
PRINTERStateType	plot = { 0 }
	Plotter file data structure used for saving plot data. More...
uint8_t	plot_str [] = { 0x3f, 0x5f, 0x47, 0x21 }
	Plotter GPIB test vector. More...

Detailed Description

HPGL printer capture code for HP85 disk emulator project for AVR.

Edit History

• [1.0] [Mike Gore] Initial revision of file.

Copyright © 2014-2020 Mike Gore, All rights reserved. GPL

See also

http://github.com/magore/hp85disk

http://github.com/magore/hp85disk/COPYRIGHT.md for Copyright details

Definition in file printer.c.

Function Documentation

printer_buffer()

void printer_buffer

(

uint16_t

val

)

Buffer Plotter data and flush when buffer is full.

• Uses POSIX FatFs wrappers.

See also

posix.c

posix.h

Returns

void

Definition at line 186 of file printer.c.

Referenced by gpib_task().

printer_close()

void printer_close

(

)

Close current plot file and reset states.

• Verify that polt file is open before attempting close.
• Uses POSIX FatFs wrappers.

See also

posix.c

posix.h

Returns

void FYI: for the HP54645D plots end with: pd;pu;pu;sp0; This gets called

Definition at line 118 of file printer.c.

Referenced by free_device(), GPIB(), gpib_init_devices(), listen_cleanup(), and printer_open().

PRINTER_COMMANDS()

int PRINTER_COMMANDS

(

uint8_t

ch

)

GPIB Secondary Command Printer commands.

Todo:

Fully emulated plotter response.

Returns

0

Definition at line 227 of file printer.c.

Referenced by GPIB_COMMANDS().

printer_init()

void printer_init

(

)

Initialize plotter structures and state.

• Only called once after power on by main().

  Returns

  void

Definition at line 98 of file printer.c.

Referenced by main(), and printer_close().

printer_open()

void printer_open

(

char *

name

)

Open a file to receive plot data using POSIX functions.

• Uses POSIX FatFs wrappers.

See also

posix.c

posix.h

Returns

void

Definition at line 43 of file printer.c.

Referenced by GPIB_LISTEN(), and GPIB_TALK().

receive_plot_flush()

int receive_plot_flush

(

)

Write Plotter data and flush.

• Uses POSIX FatFs wrappers.

See also

posix.c

posix.h

printer_buffer()

Returns

file handle

sync filesystem after every write

Definition at line 151 of file printer.c.

Referenced by printer_buffer(), and printer_close().

Variable Documentation

plot

PRINTERStateType plot = { 0 }

Plotter file data structure used for saving plot data.

Definition at line 30 of file printer.c.

Referenced by printer_buffer(), printer_close(), printer_init(), printer_open(), and receive_plot_flush().

plot_str

uint8_t plot_str[] = { 0x3f, 0x5f, 0x47, 0x21 }

Plotter GPIB test vector.

Definition at line 33 of file printer.c.