Solvline Eddy DK Manuel d'utilisateur télécharger pdf (Page 115)

Eddy DK Programmer Guide

115

SETGPIOINIT

Function

Initializes ports that will be used as GPIO after boot.

Format

void ioctl(int fd, SETGPIOINIT, struct *gpio_struct);

Parameter

Handle to GPIO device(‚/dev/eddy_gpio‛)

gpio_struct

Pointer to the struct which stores GPIO table value in

/etc/eddy_gpio.cfg with GPIO configuration file

registered in Web configuration.

struct gpio_struct {

unsigned int value[3];

unsigned int mode[3];

unsigned int pullup[3];

unsigned int enable[3]; };

Returns

None

Notice

Eddy-CPU provides maximum GPIO ports of 56.

Eddy-S4M provides maximum GPIO ports of 34.

That is when using only WAN and when devices such as serial ports,

ADC, Rese, RDY LED… are used, number of available GPIO ports

decreases.

This command initializes available GPIO ports leaving the devices that

are registered in configuration in Pinetd.c after boot so users don’t

have use this command. When used, users need to be careful.

For instance, if a serial port is enabled through web configuration and

Eddy is rebooted, the port acts as a serial port, not a GPIO port. But

when this port is forced to be used as GPIO port with this command, the

application that uses this serial port will not operate properly.

SETGPIOMOD_LM

Function

Sets Read/Write direction for all Port A, B, C

Format

void ioctl(int fd, SETGPIOMOD_LM, int *mode[3]);

Parameter

Handle to GPIO device(‚/dev/eddy_gpio‛)

mode

Pointer to the buffer that stores ‚mode‛ value for

Port A, B, C.

Bit value 0 means input, 1 means output.

Returns

None

Notice

Any value is ok for bits that are not set to be used GPIO

1 2 ... 110 111 112 113 114 115 116 117 118 119 120 ... 149 150

Commentaires sur ces manuels

Pas de commentaire

Solvline Eddy DK Manuel d'utilisateur Page 115

Commentaires sur ces manuels

Produits connexes et manuels pour Accessoires de communication Solvline Eddy DK