Cleanup and fix pin name

Author: Sync-

examples/stm32/f7/stm32f7-discovery/miniblink/miniblink.c

@@ -23,17 +23,8 @@
 
 static void gpio_setup(void)
 {
-	/* Enable GPIOD clock. */
-	/* Manually: */
-	// RCC_AHB1ENR |= RCC_AHB1ENR_IOPDEN;
-	/* Using API functions: */
 	rcc_periph_clock_enable(RCC_GPIOI);
 
-	/* Set GPIO12 (in GPIO port D) to 'output push-pull'. */
-	/* Manually: */
-	// GPIOD_CRH = (GPIO_CNF_OUTPUT_PUSHPULL << (((8 - 8) * 4) + 2));
-	// GPIOD_CRH |= (GPIO_MODE_OUTPUT_2_MHZ << ((8 - 8) * 4));
-	/* Using API functions: */
 	gpio_mode_setup(GPIOI, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO1);
 }
 
@@ -43,25 +34,8 @@ int main(void)
 
 	gpio_setup();
 
-	/* Blink the LED (PC8) on the board. */
+	/* Blink the LED (PI1) on the board. */
 	while (1) {
-		/* Manually: */
-		// GPIOD_BSRR = GPIO12;		/* LED off */
-		// for (i = 0; i < 1000000; i++)	/* Wait a bit. */
-		//	__asm__("nop");
-		// GPIOD_BRR = GPIO12;		/* LED on */
-		// for (i = 0; i < 1000000; i++)	/* Wait a bit. */
-		//	__asm__("nop");
-
-		/* Using API functions gpio_set()/gpio_clear(): */
-		// gpio_set(GPIOD, GPIO12);	/* LED off */
-		// for (i = 0; i < 1000000; i++)	/* Wait a bit. */
-		//	__asm__("nop");
-		// gpio_clear(GPIOD, GPIO12);	/* LED on */
-		// for (i = 0; i < 1000000; i++)	/* Wait a bit. */
-		//	__asm__("nop");
-
-		/* Using API function gpio_toggle(): */
 		gpio_toggle(GPIOI, GPIO1);	/* LED on/off */
 		for (i = 0; i < 1000000; i++) {	/* Wait a bit. */
 			__asm__("nop");