Posted on August 29, 2016 at 13:08
Hello i am trying to launch simple stepper (
http://robocraft.ru/files/datasheet/28BYJ-pdf
) using l293d.
Connecting 28byj-48 to the L293D:
Engine contact 1
is connected to the
output 1.
Engine
contact
3
is connected to the
output 2.
Engine
contact
4
is connected to the
output 3.
Engine contact 2
is connected to the
output 4.
Connecting STM32
to the
L293D:
PC1 is connected to input 1.
PC3 is connected to the input 2.
PC5 is connected to the input 3.
PC7 is connected to the input 4.
Enable 1, Enable 2 , Vs, Vss connected to 5v.
As a result, i hear some noise from motor but it do not spin. Dear forum users tell me what am I doing wrong?
Thank you.
#include ''stm32f10x.h''
#include ''stm32f10x_gpio.h''
#include ''stm32f10x_rcc.h''
void Delay(unsigned int t)
{
unsigned int i;
for (i=0;i<t;i++);
}
void GPIOD_Initialize(){
GPIO_InitTypeDef GPIOC_Stepper;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
GPIOC_Stepper.GPIO_Pin=GPIO_Pin_1|GPIO_Pin_3|GPIO_Pin_5|GPIO_Pin_7;
GPIOC_Stepper.GPIO_Mode=GPIO_Mode_Out_PP;
GPIOC_Stepper.GPIO_Speed= GPIO_Speed_50MHz;
GPIO_Init(GPIOC,&GPIOC_Stepper);
}
int main(void)
{
GPIOD_Initialize();
while(1)
{
GPIO_Write(GPIOC,GPIO_Pin_1);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_1| GPIO_Pin_3);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_3);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_5|GPIO_Pin_3);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_5);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_5|GPIO_Pin_7);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_7);
Delay(100);
GPIO_Write(GPIOC,GPIO_Pin_7|GPIO_Pin_1);
Delay(100);
}
}
