اقتباس المشاركة الأصلية كتبت بواسطة sara esmael http://www.qariya.info/vb/showthread.php?t=156810 ممكن المساعدة هنااا

اقتباس المشاركة الأصلية كتبت بواسطة hamadalla31 بسم الله ماشاء الله لاقوة الا بالله........... ان شاء الله يوم السبت ابدء رسم البوردات واعرض عليكم ماتم منه والله الموفق لكل خير

74hc165 74hc595 أعتقد أنها تاخذ الكثير من العميليات الحسابية للمعالج
فما رأيك ب pca 9555 تعمل بنظام i2c

#define ind_port_wr 0x40
#define ind_port_rd 0x41
#define wr_port0 0x02
#define rd_port0 0x00
#define wr_port1 0x03
#define rd_port1 0x01
#define conf_port0 0x06
#define conf_port1 0x07



void config_port0(unsigned char con0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(conf_port0); I2C1_Wr(con0); I2C1_stop();}
void config_port1(unsigned char con1){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(conf_port1); I2C1_Wr(con1); I2C1_stop();}
void write_port0 (unsigned char val0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(wr_port0); I2C1_Wr(val0); I2C1_stop();}
void write_port1 (unsigned char val0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(wr_port1); I2C1_Wr(val0); I2C1_stop();}
/************************************************** ************************************************** ***********************/

/************************************************** ************************************************** ***********************/
/************************************************** ************************************************** ***********************/
unsigned char read_port0(){unsigned char FX0;
I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(rd_port0);I2C1_Repeated_Start(); I2C1_Wr(ind_port_rd);FX0=I2C1_Rd(0); I2C1_Stop(); return FX0;}
unsigned char read_port1(){unsigned char FX1;
I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(rd_port1);I2C1_Repeated_Start();I2C1_Wr(in d_port_rd);FX1=I2C1_Rd(0);I2C1_Stop(); return FX1;}
/************************************************** ************************************************** ***********************/

/************************************************** ************************************************** ***********************/
/************************************************** ************************************************** ***********************/
void main(){
trisd=0; I2C1_Init(100000);
config_port0(0X00); من اجل مخارج
config_port1(0X00); من اجل مخارج
write_port0(0); تصفير
write_port1(0);تصفير

while(1){
/* PORTD= read_port0(); من أجل حالة القراءة وليس مفعله الان
delay_ms(100);*/ delay_ms(80);
write_port0(0X01); delay_ms(50);
write_port0(0X03); delay_ms(50);
write_port0(0X07); delay_ms(50);
write_port0(0X0F); delay_ms(50);
write_port0(0X1F); delay_ms(50);
write_port0(0X3F); delay_ms(50);
write_port0(0X7F); delay_ms(50);
write_port0(0XFF);delay_ms(50);

write_port1(0X01); delay_ms(50);
write_port1(0X03); delay_ms(50);
write_port1(0X07); delay_ms(50);
write_port1(0X0F); delay_ms(50);
write_port1(0X1F); delay_ms(50);
write_port1(0X3F); delay_ms(50);
write_port1(0X7F); delay_ms(50);
write_port1(0XFF);delay_ms(50);
delay_ms(50); write_port1(0); write_port0(0);

}}

اقتباس المشاركة الأصلية كتبت بواسطة سعد الجسري برنامج pca9555 لديك هنا منفذان الاول write_port0 والثاني write_port1 #define ind_port_wr 0x40 #define ind_port_rd 0x41 #define wr_port0 0x02 #define rd_port0 0x00 #define wr_port1 0x03 #define rd_port1 0x01 #define conf_port0 0x06 #define conf_port1 0x07 void config_port0(unsigned char con0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(conf_port0); I2C1_Wr(con0); I2C1_stop();} void config_port1(unsigned char con1){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(conf_port1); I2C1_Wr(con1); I2C1_stop();} void write_port0 (unsigned char val0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(wr_port0); I2C1_Wr(val0); I2C1_stop();} void write_port1 (unsigned char val0){ I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(wr_port1); I2C1_Wr(val0); I2C1_stop();} /************************************************** ************************************************** ***********************/ /************************************************** ************************************************** ***********************/ /************************************************** ************************************************** ***********************/ unsigned char read_port0(){unsigned char FX0; I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(rd_port0);I2C1_Repeated_Start(); I2C1_Wr(ind_port_rd);FX0=I2C1_Rd(0); I2C1_Stop(); return FX0;} unsigned char read_port1(){unsigned char FX1; I2C1_Start(); I2C1_Wr(ind_port_wr); I2C1_Wr(rd_port1);I2C1_Repeated_Start();I2C1_Wr(in d_port_rd);FX1=I2C1_Rd(0);I2C1_Stop(); return FX1;} /************************************************** ************************************************** ***********************/ /************************************************** ************************************************** ***********************/ /************************************************** ************************************************** ***********************/ void main(){ trisd=0; I2C1_Init(100000); config_port0(0X00); من اجل مخارج config_port1(0X00); من اجل مخارج write_port0(0); تصفير write_port1(0);تصفير while(1){ /* PORTD= read_port0(); من أجل حالة القراءة وليس مفعله الان delay_ms(100);*/ delay_ms(80); write_port0(0X01); delay_ms(50); write_port0(0X03); delay_ms(50); write_port0(0X07); delay_ms(50); write_port0(0X0F); delay_ms(50); write_port0(0X1F); delay_ms(50); write_port0(0X3F); delay_ms(50); write_port0(0X7F); delay_ms(50); write_port0(0XFF);delay_ms(50); write_port1(0X01); delay_ms(50); write_port1(0X03); delay_ms(50); write_port1(0X07); delay_ms(50); write_port1(0X0F); delay_ms(50); write_port1(0X1F); delay_ms(50); write_port1(0X3F); delay_ms(50); write_port1(0X7F); delay_ms(50); write_port1(0XFF);delay_ms(50); delay_ms(50); write_port1(0); write_port0(0); }} طبعا أنا أخذنة من أحد المشاركات ولكن قمت بتعديل بسيط وانا اشكر صاحب البرنامج a0-a1-a2 ==gnd انا جاهز لاي إستفسارات