I want to program a 0 to 99 counter with 7 segments but I don't know where I wrote wrong in my code.Thank you for your help.

[eab.11]

//////////////////refresh pin

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_RESET);

HAL_Delay(10);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_RESET);

HAL_Delay(10);

/////////////////////out put

HAL_GPIO_WritePin(GPIOA,0x00ff,GPIO_PIN_RESET);

HAL_GPIO_WritePin(GPIOA,digit[i],GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,digit[j]<<4,GPIO_PIN_SET);

HAL_Delay(1000);

////////////////////counter

i++;

if(i==10){

j++;

i=0;

if(j==10){

i=0;

j=0;

}

unsigned char digit[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};

[waclawek.jan]

We don't know where you wrote wrong in your code, either, as we don't even see your code.

Anyway, debug as usually. And separate the problem to pieces: first, write a simple program which counts into a variable in memory; and then write a simple program which displays any chosen number to the 7-segments. Then put them together.

JW

[eab.11]

this is my code but i don't find mistake.

//////////////////refresh pin

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_11,GPIO_PIN_RESET);

HAL_Delay(10);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,GPIO_PIN_12,GPIO_PIN_RESET);

HAL_Delay(10);

/////////////////////out put

HAL_GPIO_WritePin(GPIOA,0x00ff,GPIO_PIN_RESET);

HAL_GPIO_WritePin(GPIOA,digit[i],GPIO_PIN_SET);

HAL_GPIO_WritePin(GPIOA,digit[j]<<4,GPIO_PIN_SET);

HAL_Delay(1000);

////////////////////counter

i++;

if(i==10){

j++;

i=0;

if(j==10){

i=0;

j=0;

}

unsigned char digit[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};

[Pavel A.]

Here you can find help for your project.

[Tesla DeLorean]

There are 7 segments, not 4

Identify exactly which pins connect to with elements, or which displays