Question
How do I program a button to increase counter?
This is my first project using STM32 and one of my first coding in general. I'm attempting to make a user interface GUI using a STT7735 shield LCD. I've been able to get the menus to function properly; however I'm attempting to use the left and right functions of the joystick to increase a counter from 1-22. I'm having no luck with it whatsoever.
/* Wait for JOY_DOWN or JOY_UP is pressed */
tmp = JOY_RIGHT;
while ((tmp != JOY_DOWN) && (tmp != JOY_UP))
{
tmp = BSP_JOY_GetState();
}
/* LCD Clear */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* JOY_UP is pressed: Display Manual mode menu #############################*/
if(tmp == JOY_UP)
{
/* Set Text color */
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
/* Display message */
BSP_LCD_DisplayStringAtLine(3, (uint8_t*)" Channel ");
BSP_LCD_DisplayStringAtLine(5, (uint8_t*)" Select:");
sprintf(channel, "%d", x);
BSP_LCD_DisplayStringAtLine(6, (uint8_t*) &channel);
/* Set Text color */
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
/* Display message */
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" RIGHT: Next");
BSP_LCD_DisplayStringAtLine(9, (uint8_t*)" LEFT : Previous ");
BSP_LCD_DisplayStringAtLine(10, (uint8_t*)" SEL : Select ");
BSP_LCD_DisplayStringAtLine(11, (uint8_t*)" Down : Back");
tmp = JOY_UP;
while ((tmp != JOY_DOWN) && (tmp !=JOY_RIGHT) && (tmp != JOY_SEL) && (tmp !=JOY_LEFT) ){
tmp= BSP_JOY_GetState();
}
if(tmp == JOY_DOWN){
TFT_DisplayMain();
}
if(tmp == JOY_RIGHT){
for(x=1;x<23;x++){
x=x+1;
}
}
if(tmp == JOY_LEFT){
// Opposite direction of Right code. Still need to figure that out.
}
if(tmp == JOY_SEL){
//Write selection to home page and register
TFT_DisplayMain();
}
}int x=1;
int y=1;
char channel[7];
char code[5];I'm attempting to use a for loop to use as an increase and I've tried with using pointers, but something tells me I'm missing a rather small detail.
