[ ST NUCLEO-U575ZI-Q 测评] +点两个灯
<div class='showpostmsg'><p>用MDK新建一个工程：</p><p> 定义一下LED1、LED2的端口、PIN，时钟：</p>
<pre>
<code>#define LED1_PIN GPIO_PIN_7
#define LED1_GPIO_PORT GPIOC
#define LED1_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
#define LED1_GPIO_CLK_DISABLE() __HAL_RCC_GPIOC_CLK_DISABLE()
#define LED2_PIN GPIO_PIN_7
#define LED2_GPIO_PORT GPIOB
#define LED2_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define LED2_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()</code></pre>
<p>时钟初始，针脚初始化：</p>
<pre>
<code> /* -1- Enable GPIO Clock (to be able to program the configuration registers) */
LED1_GPIO_CLK_ENABLE();
LED2_GPIO_CLK_ENABLE();
/* -2- Configure IO in output push-pull mode to drive external LEDs */
GPIO_InitStruct.Mode= GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull= GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Pin = LED1_PIN;
HAL_GPIO_Init(LED1_GPIO_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = LED2_PIN;
HAL_GPIO_Init(LED2_GPIO_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = LED3_PIN;
HAL_GPIO_Init(LED3_GPIO_PORT, &GPIO_InitStruct);</code></pre>
<p>交替亮灯：</p>
<pre>
<code>/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(LED1_GPIO_PORT, LED1_PIN);
/* Insert delay 100 ms */
HAL_Delay(100);
HAL_GPIO_TogglePin(LED2_GPIO_PORT, LED2_PIN);
/* Insert delay 100 ms */
HAL_Delay(100);
}</code></pre>
<p>接上开发板，下载：</p>
<p> 805744476a9e3076d0da952622bc0d51<br />
</p>
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