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P8000
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start modularizing the code

This commit is contained in:
Oliver Lehmann 2012-05-30 20:07:10 +00:00
parent 7077bfbd57
commit b1fcd9fe44
3 changed files with 59 additions and 37 deletions
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2
P8000_WDC_Emulator/P8000_WDC_Emulator/uart.c
View File

@ -59,7 +59,7 @@
#endif
#define BAUD 9600UL
#define UBRRVAL (CPU_FREQ/(BAUD*16)-1)
#define UBRRVAL (F_CPU/(BAUD*16)-1)
#define USE_SLEEP 1
void uart_init()

4
P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_config.h
View File

@ -1,7 +1,7 @@
/*
* P8000 WDC Emulator
*
* $Id: wdc_config.h,v 1.3 2012/05/30 16:41:00 olivleh1 Exp $
* $Id: wdc_config.h,v 1.4 2012/05/30 20:07:10 olivleh1 Exp $
*
*/
@ -9,7 +9,7 @@
#ifndef CONFIG_H_
#define CONFIG_H_
#define CPU_FREQ 18432000UL
#define F_CPU 18432000UL
#define PORT_DATA PORTA
#define PIN_DATA PINA

88
P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c
View File

@ -1,21 +1,26 @@
/*
* P8000 WDC Emulator
*
* $Id: wdc_main.c,v 1.3 2012/05/30 16:41:00 olivleh1 Exp $
* $Id: wdc_main.c,v 1.4 2012/05/30 20:07:10 olivleh1 Exp $
*
*/
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <avr/pgmspace.h>
#include <avr/sleep.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include "config.h"
#include <util/delay.h>
#include "main.h"
#include "uart.h"
#define DEBUG 1
void atmega_setup(void);
void wdc_read_data_from_p8k(uint8_t **data_buffer, uint8_t data_count);
void wdc_write_data_to_ram(uint8_t **data_buffer, uint16_t data_address, uint8_t data_count);
int main(void)
{
@ -25,6 +30,7 @@ int main(void)
uint8_t datacnt;
uint16_t data_counter;
uint16_t data_address;
uint8_t *data_buffer = NULL;
atmega_setup();
@ -60,38 +66,18 @@ int main(void)
{
case CMD_WR_WDC_RAM:
for(data_counter=1000;data_counter>0;data_counter--) asm("nop");
data_counter = (cmdbuffer[7]<<8)|cmdbuffer[6];
configure_port_data_read();
datacnt = 0;
port_info_set( INFO_STAT_RDATA );
while ( !isset_info_te() );
while ( !isset_info_wdardy() );
while ( datacnt < data_counter )
{
while ( isset_info_wdardy() );
port_info_set( INFO_ASTB | INFO_STAT_RDATA );
buffer[datacnt] = port_data_get();
port_info_set( INFO_STAT_RDATA );
while ( !isset_info_wdardy() );
wdc_read_data_from_p8k(&data_buffer
,data_counter
);
datacnt++;
}
wdc_write_data_to_ram(&data_buffer
,convert_ram_address((cmdbuffer[2]<<8)+cmdbuffer[1])
,data_counter
);
port_info_set( INFO_CLEAR );
data_address = convert_ram_address((cmdbuffer[2]<<8)+cmdbuffer[1]);
do
{
data_counter--;
wdc_ram[data_address+data_counter] = buffer[+data_counter];
} while (data_counter > 0);
uart_puts_p(PSTR("DATA Buffer:"));
uart_putc_hex(wdc_ram[data_address+0]);
uart_putc_hex(wdc_ram[data_address+1]);
free(data_buffer);
break;
case CMD_RD_WDC_RAM:
@ -104,7 +90,7 @@ int main(void)
buffer[+data_counter] = wdc_ram[data_address+data_counter];
} while (data_counter > 0);
for(data_counter=1000;data_counter>0;data_counter--) asm("nop");
_delay_us(560);
data_counter = (cmdbuffer[7]<<8)|cmdbuffer[6];
datacnt = 0;
@ -131,7 +117,7 @@ int main(void)
port_info_set( INFO_CLEAR );
break;
default:
for(data_counter=1000;data_counter>0;data_counter--) asm("nop");
_delay_us(560);
port_info_set( INFO_TR | INFO_STAT_ERROR );
while ( isset_info_te() );
configure_port_data_write();
@ -152,6 +138,7 @@ int main(void)
break;
}
#ifdef DEBUG
uart_puts_p(PSTR(" CMD Buffer:"));
uart_putc_hex(cmdbuffer[0]);
uart_putc_hex(cmdbuffer[1]);
@ -163,7 +150,7 @@ int main(void)
uart_putc_hex(cmdbuffer[7]);
uart_putc_hex(cmdbuffer[8]);
uart_putc('\n');
#endif
}
return 0;
}
@ -185,3 +172,38 @@ void atmega_setup(void)
uart_init();
}
void wdc_read_data_from_p8k(uint8_t **data_buffer, uint8_t data_count)
{
int datacnt = 0;
(*data_buffer) = (uint8_t *)malloc(data_count);
_delay_us(560);
configure_port_data_read();
port_info_set( INFO_STAT_RDATA );
while ( !isset_info_te() );
while ( !isset_info_wdardy() );
do
{
while ( isset_info_wdardy() );
port_info_set( INFO_ASTB | INFO_STAT_RDATA );
(*data_buffer)[datacnt] = port_data_get();
port_info_set( INFO_STAT_RDATA );
while ( !isset_info_wdardy() );
datacnt++;
} while ( datacnt < data_count );
port_info_set( INFO_CLEAR );
}
void wdc_write_data_to_ram(uint8_t **data_buffer, uint16_t data_address, uint8_t data_count)
{
do
{
data_count--;
wdc_ram[data_address+data_count] = (*data_buffer)[data_count];
} while (data_count > 0);
}