STM32\u4e32\u53e3\u63a5\u6536\u4e0d\u5b9a\u957f\u6570\u636e\uff08\u63a5\u6536\u4e2d\u65ad+\u8d85\u65f6\u5224\u65ad\uff09<\/a>\u3011\u6709\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u6ca1\u770b\u8fc7\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u770b\u770b\u3002<\/p>\nUART_HandleTypeDef ys_uart_handle;\n\nuint8_t ys_uart_rx_buf[YS_RX_BUF_SIZE];\nuint8_t ys_uart_tx_buf[YS_TX_BUF_SIZE];\nuint16_t ys_uart_rx_len = 0;\n\nvoid ys_init(uint32_t baudrate)\n{\n ys_uart_handle.Instance = YS_INTERFACE; \/* BT *\/\n ys_uart_handle.Init.BaudRate = baudrate; \/* \u6ce2\u7279\u7387 *\/\n ys_uart_handle.Init.WordLength = UART_WORDLENGTH_8B; \/* \u6570\u636e\u4f4d *\/\n ys_uart_handle.Init.StopBits = UART_STOPBITS_1; \/* \u505c\u6b62\u4f4d *\/\n ys_uart_handle.Init.Parity = UART_PARITY_NONE; \/* \u6821\u9a8c\u4f4d *\/\n ys_uart_handle.Init.Mode = UART_MODE_TX_RX; \/* \u6536\u53d1\u6a21\u5f0f *\/\n ys_uart_handle.Init.HwFlowCtl = UART_HWCONTROL_NONE; \/* \u65e0\u786c\u4ef6\u6d41\u63a7 *\/\n ys_uart_handle.Init.OverSampling = UART_OVERSAMPLING_16; \/* \u8fc7\u91c7\u6837 *\/\n HAL_UART_Init(&ys_uart_handle); \/* \u4f7f\u80fdBT *\/\n}\n\nvoid ys_rx_clear(void)\n{\n memset(ys_uart_rx_buf, 0, sizeof(ys_uart_rx_buf)); \/\/\u6e05\u7a7a\u63a5\u6536\u7f13\u51b2\u533a\n ys_uart_rx_len = 0; \/\/\u63a5\u6536\u8ba1\u6570\u5668\u6e05\u96f6\n}\n\nvoid YS_IRQHandler(void)\n{\n uint8_t receive_data = 0; \n if(__HAL_UART_GET_FLAG(&ys_uart_handle, UART_FLAG_RXNE) != RESET){ \/\/\u83b7\u53d6\u63a5\u6536RXNE\u6807\u5fd7\u4f4d\u662f\u5426\u88ab\u7f6e\u4f4d\n if(ys_uart_rx_len >= sizeof(ys_uart_rx_buf)) \/\/\u5982\u679c\u63a5\u6536\u7684\u5b57\u7b26\u6570\u5927\u4e8e\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\n ys_uart_rx_len = 0; \/\/\u5219\u5c06\u63a5\u6536\u8ba1\u6570\u5668\u6e05\u96f6\n HAL_UART_Receive(&ys_uart_handle, &receive_data, 1, 1000); \/\/\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\n ys_uart_rx_buf[ys_uart_rx_len++] = receive_data; \/\/\u5c06\u63a5\u6536\u5230\u7684\u5b57\u7b26\u4fdd\u5b58\u5728\u63a5\u6536\u7f13\u51b2\u533a\n }\n\n if (__HAL_UART_GET_FLAG(&ys_uart_handle, UART_FLAG_IDLE) != RESET) \/\/\u83b7\u53d6\u63a5\u6536\u7a7a\u95f2\u4e2d\u65ad\u6807\u5fd7\u4f4d\u662f\u5426\u88ab\u7f6e\u4f4d\n {\n int i = 0;\n printf("receive: \/r\/n");\n for(i = 0; i < ys_uart_rx_len; i++ )\n printf("%02X ", ys_uart_rx_buf[i]); \/\/\u5c06\u63a5\u6536\u5230\u7684\u6570\u636e\u6253\u5370\u51fa\u6765\n printf("\/r\/n");\n control_led();\n ys_rx_clear();\n __HAL_UART_CLEAR_IDLEFLAG(&ys_uart_handle); \/\/\u6e05\u9664UART\u603b\u7ebf\u7a7a\u95f2\u4e2d\u65ad\n }\n}<\/code><\/pre>\n6.3 LED\u521d\u59cb\u5316<\/h3>\n
LED \u706f\u7684\u4ee3\u7801\u7b80\u7b80\u5355\u5355\uff0c\u53ea\u8981\u8fdb\u884c\u4e00\u4e0b\u4e09\u4e2a\u706f\u7684\u521d\u59cb\u5316\u5c31\u884c\u3002<\/p>\n
void led_init(void)\n{\n GPIO_InitTypeDef gpio_init_struct;\n LED1_GPIO_CLK_ENABLE(); \/* LED1\u65f6\u949f\u4f7f\u80fd *\/\n LED2_GPIO_CLK_ENABLE(); \/* LED2\u65f6\u949f\u4f7f\u80fd *\/\n LED3_GPIO_CLK_ENABLE(); \/* LED3\u65f6\u949f\u4f7f\u80fd *\/\n\n gpio_init_struct.Pin = LED1_GPIO_PIN; \/* LED1\u5f15\u811a *\/\n gpio_init_struct.Mode = GPIO_MODE_OUTPUT_PP; \/* \u63a8\u633d\u8f93\u51fa *\/\n gpio_init_struct.Pull = GPIO_PULLUP; \/* \u4e0a\u62c9 *\/\n gpio_init_struct.Speed = GPIO_SPEED_FREQ_HIGH; \/* \u9ad8\u901f *\/\n HAL_GPIO_Init(LED1_GPIO_PORT, &gpio_init_struct); \/* \u521d\u59cb\u5316LED1\u5f15\u811a *\/\n\n gpio_init_struct.Pin = LED2_GPIO_PIN; \/* LED2\u5f15\u811a *\/\n HAL_GPIO_Init(LED2_GPIO_PORT, &gpio_init_struct); \/* \u521d\u59cb\u5316LED2\u5f15\u811a *\/\n \n gpio_init_struct.Pin = LED3_GPIO_PIN; \/* LED3\u5f15\u811a *\/\n HAL_GPIO_Init(LED3_GPIO_PORT, &gpio_init_struct); \/* \u521d\u59cb\u5316LED3\u5f15\u811a *\/\n\n LED1(0); \/* \u5173\u95ed LED1 *\/\n LED2(0); \/* \u5173\u95ed LED2 *\/\n LED3(0); \/* \u5173\u95ed LED3 *\/\n}<\/code><\/pre>\nLED \u7684 .h\u6587\u4ef6\uff1a<\/p>\n
#ifndef _LED_H\n#define _LED_H\n#include "sys.h"\n\n\n\/******************************************************************************************\/\n\/* \u5f15\u811a \u5b9a\u4e49 *\/\n\n#define LED1_GPIO_PORT GPIOA\n#define LED1_GPIO_PIN GPIO_PIN_7\n#define LED1_GPIO_CLK_ENABLE() do{ __HAL_RCC_GPIOA_CLK_ENABLE(); }while(0) \/* PA\u53e3\u65f6\u949f\u4f7f\u80fd *\/\n\n#define LED2_GPIO_PORT GPIOA\n#define LED2_GPIO_PIN GPIO_PIN_6\n#define LED2_GPIO_CLK_ENABLE() do{ __HAL_RCC_GPIOA_CLK_ENABLE(); }while(0) \/* PA\u53e3\u65f6\u949f\u4f7f\u80fd *\/\n\n#define LED3_GPIO_PORT GPIOA\n#define LED3_GPIO_PIN GPIO_PIN_5\n#define LED3_GPIO_CLK_ENABLE() do{ __HAL_RCC_GPIOA_CLK_ENABLE(); }while(0) \/* PB\u53e3\u65f6\u949f\u4f7f\u80fd *\/\n\n\/******************************************************************************************\/\n\/* LED\u7aef\u53e3\u5b9a\u4e49 *\/\n#define LED1(x) do{ x ? \/\n HAL_GPIO_WritePin(LED1_GPIO_PORT, LED1_GPIO_PIN, GPIO_PIN_SET) : \/\n HAL_GPIO_WritePin(LED1_GPIO_PORT, LED1_GPIO_PIN, GPIO_PIN_RESET); \/\n }while(0)\n\n#define LED2(x) do{ x ? \/\n HAL_GPIO_WritePin(LED2_GPIO_PORT, LED2_GPIO_PIN, GPIO_PIN_SET) : \/\n HAL_GPIO_WritePin(LED2_GPIO_PORT, LED2_GPIO_PIN, GPIO_PIN_RESET); \/\n }while(0)\n\n#define LED3(x) do{ x ? \/\n HAL_GPIO_WritePin(LED3_GPIO_PORT, LED3_GPIO_PIN, GPIO_PIN_SET) : \/\n HAL_GPIO_WritePin(LED3_GPIO_PORT, LED3_GPIO_PIN, GPIO_PIN_RESET); \/\n }while(0)\n\n\/* LED\u53d6\u53cd\u5b9a\u4e49 *\/\n#define LED1_TOGGLE() do{ HAL_GPIO_TogglePin(LED1_GPIO_PORT, LED1_GPIO_PIN); }while(0) \/* \u7ffb\u8f6cLED1 *\/\n#define LED2_TOGGLE() do{ HAL_GPIO_TogglePin(LED2_GPIO_PORT, LED2_GPIO_PIN); }while(0) \/* \u7ffb\u8f6cLED2 *\/\n#define LED3_TOGGLE() do{ HAL_GPIO_TogglePin(LED3_GPIO_PORT, LED3_GPIO_PIN); }while(0) \/* \u7ffb\u8f6cLED3 *\/\n\n\/******************************************************************************************\/\n\/* \u5916\u90e8\u63a5\u53e3\u51fd\u6570*\/\nvoid led_init(void); \/* LED\u521d\u59cb\u5316 *\/\n\n#endif<\/code><\/pre>\n6.4 LED\u63a7\u5236<\/h3>\n
\u6211\u7684\u9065\u63a7\u5668\u524d\u4e24\u4f4d\u90fd\u4e00\u6837\uff0c\u53ea\u9700\u8981\u5224\u65ad\u7b2c\u4e09\u4f4d\u662f\u4e0d\u662f\u4e3a\u7eff\/\u9ec4\/\u7ea2\u706f\u7801\u5373\u53ef\u3002\u82e5\u524d\u4e24\u4f4d\u90fd\u4e0d\u6b63\u786e\uff0c\u90a3\u5c31\u4e0d\u662f\u6211\u7684\u9065\u63a7\u5668\u53d1\u51fa\u7684\u7ea2\u5916\u4fe1\u53f7\uff0c\u4e0d\u7528\u518d\u5f80\u4e0b\u5224\u65ad\u4e86\u3002<\/p>\n
void control_led(void)\n{\n if(ys_uart_rx_buf[0] == 0x00 && ys_uart_rx_buf[1] == 0xFF) \/\/\u5730\u5740\u7801\u6b63\u786e\n {\n switch(ys_uart_rx_buf[2]) \/\/\u5224\u65ad\u6570\u636e\u7801\n {\n case 0x16: \/\/\u7eff\u706f\u7801\n LED1_TOGGLE(); \/\/\u7ffb\u8f6cLED1\n break;\n case 0x19: \/\/\u9ec4\u706f\u7801\n LED2_TOGGLE(); \/\/\u7ffb\u8f6cLED2\n break;\n case 0x0D: \/\/\u7ea2\u706f\u7801\n LED3_TOGGLE(); \/\/\u7ffb\u8f6cLED3\n break;\n }\n }\n}<\/code><\/pre>\n6.5 \u4e3b\u51fd\u6570<\/h3>\n
\u4e3b\u51fd\u6570\u5982\u4e0b\uff1a<\/p>\n
int main(void)\n{\n HAL_Init(); \/* \u521d\u59cb\u5316HAL\u5e93 *\/\n sys_stm32_clock_init(RCC_PLL_MUL9); \/* \u8bbe\u7f6e\u65f6\u949f,72M *\/\n delay_init(72); \/* \u521d\u59cb\u5316\u5ef6\u65f6\u51fd\u6570 *\/\n usart_init(115200); \/* \u4e32\u53e31\u6ce2\u7279\u7387\u8bbe\u4e3a115200 *\/\n ys_init(9600); \/* \u4e32\u53e32\u6ce2\u7279\u7387\u8bbe\u4e3a9600 *\/\n led_init();\n\n printf("\u7ea2\u5916\u63a7\u5236\u706f\u2026\u2026\/r\/n");\n\n while(1)\n {\n delay_ms(1000);\n }\n}<\/code><\/pre>\n6.6 \u8fd0\u884c\u8fc7\u7a0b<\/h3>\n
\u70e7\u5f55\u540e\uff0c\u6253\u5f00\u4e32\u53e3\uff0c\u6309\u4e0b\u9065\u63a7\u56681\u30012\u30013\uff0c\u6548\u679c\u5982\u4e0b\u3002<\/p>\n
\u7ea2\u5916\u7f16\u89e3\u7801\u6a21\u5757\uff08\u4e32\u53e32\uff09\u6ce2\u7279\u7387\u662f9600\uff0c\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b\u63a5\u6536\u7684\u662f\u5355\u7247\u673a\uff08\u4e32\u53e31\uff09\u7684\u6570\u636e\uff0c\u6ce2\u7279\u7387115200\uff0c\u5927\u5bb6\u4e0d\u8981\u5f04\u6df7\u5566\u3002<\/p>\n
![\"\"](\"https:\/\/segmentfault.com\/img\/remote\/1460000047513154\" "\\"\\"")
<\/p>\n
\u6211\u4eec\u7684\u4e09\u4e2a\u5c0f\u706f\u4e5f\u6253\u5f00\u4e86\u3002\uff08\u6211\u7684\u5c0f\u7eff\u706f\u4e0d\u662f\u5f88\u4eae\uff0c\u7528\u65e7\u4e86\uff0c\u563b\u563b\uff09<\/p>\n
![\"\"](\"https:\/\/segmentfault.com\/img\/remote\/1460000047513155\" "\\"\\"")
<\/p>\n
7. \u603b\u7ed3<\/h2>\n
\u795d\u8d3a\u5927\u5bb6\u6210\u529f\u70b9\u706f\uff01\u5f53\u7136\uff0c\u9664\u4e86\u63a7\u5236\u706f\u7684\u5f00\u5173\uff0c\u7ea2\u5916\u7f16\u89e3\u7801\u6a21\u5757\u8fd8\u53ef\u4ee5\u5e94\u7528\u4e8e\u66f4\u5e7f\u6cdb\u7684\u573a\u666f\uff0c\u5982\u5bb6\u5ead\u5a31\u4e50\u3001\u533b\u7597\u4fdd\u5065\u3001\u5de5\u4e1a\u81ea\u52a8\u5316\u7b49\u7b49\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65\uff0c\u7ea2\u5916\u6280\u672f\u5c06\u6301\u7eed\u6f14\u8fdb\uff0c\u5e76\u5728\u66f4\u591a\u9886\u57df\u53d1\u6325\u4f5c\u7528\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u4e3a\u4f60\u63d0\u4f9b\u4e86\u4e00\u4e2a\u521d\u6b65\u7684\u4e86\u89e3\uff0c\u5e76\u6fc0\u53d1\u4f60\u8fdb\u4e00\u6b65\u6df1\u5165\u7814\u7a76\u548c\u5e94\u7528\u7ea2\u5916\u6280\u672f\u7684\u5174\u8da3\u3002\u611f\u8c22\u5404\u4f4d\u770b\u5b98\uff0clove and peace\uff01<\/p>\n
https:\/\/segmentfault.com\/a\/1190000047513140<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002 \u548c\u7ea2\u5916\u6709\u5173\u7684\u6a21\u5757\u6709\u5f88\u591a\uff0c\u6bd4\u5982\u7ea2\u5916\u5faa\u8ff9\uff0c\u7ea2\u5916\u611f\u5e94\uff0c\u7ea2\u5916\u53d1\u5c04\uff0c\u7ea2\u5916\u63a5\u6536\uff0c\u7ea2\u5916\u5bf9\u5c04\uff0c\u7ea2\u5916\u7f16\u89e3\u7801\u7b49 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021158","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021158"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021158\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}