【ST NUCLEO-U083RC】Study Notes 02 (Lighting and key input)

qzc0927

【ST NUCLEO-U083RC】Study Notes 02 (Lighting and key input) [Copy link]

<div class='showpostmsg'>### 2.1: Lighting control: 1: Check the schematic diagram and confirm the LED working pin, as shown below:  2: Cubemx sets the pin to output state, the default low level is valid  3: Automatically generate code to add LED flashing code: ```C while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); /* Insert delay 100 ms */ HAL_Delay(100); } ``` 4: After the device was debugged, downloaded and burned, it was found that the LED was not on. It was suspected that the clock setting was incorrect. Later, after checking the board in detail, it was found that there was no crystal oscillator on the board and the internal clock needed to be used.  Return to the clock settings of cubemx.   At this time, you can see that the yellow LED of the board is flashing. ### 2.2: Key input control keys are implemented using external interrupts 1: Check the schematic information, as shown below:  2: CubeMX configuration configures the pin to output mode:  Then enable external interrupts:  After the code is automatically generated, it is burned and run. The running results are as follows: </div><script> var loginstr = '<div class="locked">To view all the contents of the post, please <a href="/bbs/member.php?mod=logging&action=login" style="color:#e60000" class="loginf">log in</a> or <a href="/bbs/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">register</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

qzc0927

点灯和按键控制

Try to upload a video

lugl4313820

Is the description correct? If it is output mode, it is not exti.

qzc0927

lugl4313820 posted on 2024-5-29 07:36 Is the description correct? If it is output mode, it is not exti.

Yes, the description here is wrong, it should be input mode.