Renesas Single-Chip Microcomputer M38C89T-ADF Bedienungsanleitung PDF herunterladen (Seite 120)

4BUsage Examples

5.3 23BBus Controller

5-4

Rev.1.00 May 22 2012

REJ09B0566

5.2. I/O Port

Figure 5-2 shows examples of I/O port configuration, reading and writing.

/* PDL functions */

#include "r_pdl_io_port_library_SH7267.h"

/* Following header file provides access to intrinsic functions useful for

Configuring and controlling the interrupts. */

#include <machine.h>

/* PDL device-specific definitions */

#include "r_pdl_definitions.h"

void io_handler(void);

void IOPort_Test(void)

{

uint16_t data = 0u;

uint16_t index = 0u;

uint16_t index1 = 0u;

uint8_t direction = 0u;

uint8_t buffer = 0u;

uint8_t pull_up = 0u;

uint16_t output = 0u;

R_IO_PORT_Set(PDL_IO_PORT_J_6, PDL_IO_PORT_OUTPUT, 0);

R_IO_PORT_Set(PDL_IO_PORT_J_7, PDL_IO_PORT_OUTPUT, 0);

/* Toggle LED 1 */

for(index1 = 0; index1 < 10; index1++)

{

_check_Wr_Pin_H(PDL_IO_PORT_J_6,PDL_IO_PORT_HIGH);

for (index = 0; index < 0xFFFF;index++)

{

nop();

}

_check_Wr_Pin_H(PDL_IO_PORT_J_6,PDL_IO_PORT_LOW);

}

/* configure PORT J as input */

R_IO_PORT_Write(PDL_IO_PORT_J,0x0000);

/* Set the lower 8 bits on port PJ to output */

R_IO_PORT_Modify(PDL_IO_PORT_J,PDL_IO_PORT_OR,0x00FF);

/* wait for the PORT J to be high */

R_IO_PORT_Compare(PDL_IO_PORT_J_7, 0x0080, io_handler);

/* make the port PJ6 to be low */

_check_Wr_Pin_H(PDL_IO_PORT_J_6,PDL_IO_PORT_LOW);

/* Read to verify the Port PJ6 */

R_IO_PORT_Read(PDL_IO_PORT_J_6, &data);

/* make the port PJ6 to be high */

_check_Wr_Pin_H(PDL_IO_PORT_J_6,PDL_IO_PORT_HIGH);

/* Read to verify the Port PJ6 */

R_IO_PORT_Read(PDL_IO_PORT_J_6, &data);

}

void io_handler(void)

{

/* make port low */

_check_Wr_Pin_H(PDL_IO_PORT_J_6,PDL_IO_PORT_LOW);

}

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 137 138

Kommentare zu diesen Handbüchern

Keine Kommentare

Renesas Single-Chip Microcomputer M38C89T-ADF Bedienungsanleitung Seite 120

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Vernetzung Renesas Single-Chip Microcomputer M38C89T-ADF