Keil5编程之warning: #223-D

最新推荐文章于 2024-11-03 15:00:59 发布
最新推荐文章于 2024-11-03 15:00:59 发布
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分类专栏： 编译、开发、工具 文章标签： 单片机 Keil-MDK ide
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本文链接：https://blog.youkuaiyun.com/qq_39567970/article/details/136653534
作者分享了自己遇到的编程警告，源于预编译名称在多个头文件中的重复定义，导致函数声明无效。尝试过一些解决方法但未成功，最终发现问题根源并给出相应的解决方案。

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出现这个问题 每个人可能都不一样，我出现这个警告也搜了一些解决方法，如下所示，但是无法解决。

1、参考
2、参考

出去溜达了一圈，回来发现原来是预编译的名字和其他文件中相同，导致后来创建的文件函数声明无效。
如下在两个.h文件中都声明 _ABC_H_就会出现#223-D的警告

#ifndef	_ABC_H_
#define _ABC_H_

#endif
Keil出现警告：warning: #223-D: function “XXX“ declared implicitly
u011895157的博客
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这个警告表明编译器在函数使用之前没有找到函数的显式声明或定义。这通常发生在函数被使用之前没有在当前文件中进行声明或定义，或者头文件未正确包含。如果两个.h文件，比如pwm.h和timer.h文件都包括相同的宏，就会产生冲突，出现上述问题。如果说，头文件里我也定义了，在调用该函数的源文件中我也引了相关的头文件，还是报错怎么办？解决办法很简单，把其中一个.h文件的宏换掉就可以了，比如换成。这时候你需要检查一下是否使用下面的宏。
main.c(31): warning: #223-D: function “uart_init“ declared implicitly
SSFY2590的博客
08-11 3084
这时候如果在在main.c中包含头文件时，先包含了LED1.h，后包含了LED2.h，在头文件预定义防止重复包含的作用下，就会导致LED2.h中的函数和变量声明失效，从而导致上面的警告。同理，如果先包含了LED2h，后包含了LED1.h，就会导致LED1.h的有关函数出现警告。这时候如果在在main.c中包含头文件时，先包含了LED1.h，后包含了LED2.h，在头文件预定义防止重复包含的作用下，就会导致LED2.h中的函数和变量声明失效，从而导致上面的警告。4、头文件的预定义声明重复了，有两个一样的；
Keil5编程之warning: #223-D: function “xxx“ declared implicitly
weixin_45714385的博客
03-18 5万+
出现原因 该函数没有在本文件包含的头文件中定义，而只在其他c文件的头文件中有定义，也就是间接地有定义。这样是不规范的。 解决办法 把出现问题的函数所在头文件包含进来。且如果包含进来还未解决，可能是头文件包含的先后顺序有关。 ...
keil编程中常见的警告—— warning: #223-D: function “xxx“ declared implicitly
hjl2258的博客
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警告：# 223-d:函数"XXX"隐式声明 在该模块中没有添加头文件，如图所示，缺少#include <stdarg.h>头文件，添加上去，警告就消除了。还要注意函数是不是对应这个头文件。
Keil报: warning: #223-D: function “某某某“ declared implicitly 的警告，三个解决方法
qq_63796876的博客
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③（我个人遇到的比较奇葩的原因）（emmm。使得尽管在A.h中包含了B.h中的函数，但仍然警告。②看函数定义有没有出错，函数定义有一点不同就会出现上述原因，解决：①看有没有 include 相关头文件。原因：找不到“某某某”函数。
KEIL MDK中 warning: #223-D: function "xxx" declared implicitly 解决方法
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解决告警提示:“warning: #223-D: function “can_single_send“ declared implicitly“方法
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今天来简单分享一下关于编译时候出现“warning: #223-D: function “can_single_send” declared implicitly”告警信息的其中一个原因，因为出现这种提示可能有因为函数名字不一致导致的，也有可能因为函数声音出现在其他头文件中导致的。而该告警提示的意思是：can_single_send函数为隐式声明，而我当时是在其他源文件里面使用了该文件，并且也引用了相应头文件，但是编译时候提示我上述告警提示，好了，今天的分享就到这里~
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### 解决 Keil 编译器中关于 `strlen` 函数隐式声明的警告问题 在 C 语言编程中，当编译器遇到未显式声明的标准库函数时，会发出类似的警告。这种现象通常是因为缺少必要的头文件包含或者不正确的项目配置引起的。 ...
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Build target &#39;Target 1&#39; compiling main.c... dht11.h(10): error: #20: identifier "uint8_t" is undefined uint8_t DHT11_Read(float *temp, float *humid); main.c(8): error: #20: identifier "RCC" is undefined RCC->CR |= RCC_CR_HSEON; main.c(8): error: #20: identifier "RCC_CR_HSEON" is undefined RCC->CR |= RCC_CR_HSEON; main.c(9): error: #20: identifier "RCC_CR_HSERDY" is undefined while (!(RCC->CR & RCC_CR_HSERDY)); main.c(12): error: #20: identifier "RCC_CFGR_PLLMULL9" is undefined RCC->CFGR |= RCC_CFGR_PLLMULL9 | RCC_CFGR_PLLSRC; main.c(12): error: #20: identifier "RCC_CFGR_PLLSRC" is undefined RCC->CFGR |= RCC_CFGR_PLLMULL9 | RCC_CFGR_PLLSRC; main.c(15): error: #20: identifier "RCC_CR_PLLON" is undefined RCC->CR |= RCC_CR_PLLON; main.c(16): error: #20: identifier "RCC_CR_PLLRDY" is undefined while (!(RCC->CR & RCC_CR_PLLRDY)); main.c(19): error: #20: identifier "RCC_CFGR_SW_PLL" is undefined RCC->CFGR |= RCC_CFGR_SW_PLL; main.c(20): error: #20: identifier "RCC_CFGR_SWS" is undefined while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL); main.c(20): error: #20: identifier "RCC_CFGR_SWS_PLL" is undefined while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL); main.c(23): error: #20: identifier "RCC_CFGR_PPRE1_DIV2" is undefined RCC->CFGR |= RCC_CFGR_PPRE1_DIV2 | RCC_CFGR_PPRE2_DIV1; main.c(23): error: #20: identifier "RCC_CFGR_PPRE2_DIV1" is undefined RCC->CFGR |= RCC_CFGR_PPRE1_DIV2 | RCC_CFGR_PPRE2_DIV1; main.c(29): error: #20: identifier "RCC" is undefined RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN; main.c(29): error: #20: identifier "RCC_APB2ENR_IOPAEN" is undefined RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN; main.c(29): error: #20: identifier "RCC_APB2ENR_IOPBEN" is undefined RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN; main.c(29): error: #20: identifier "RCC_APB2ENR_IOPCEN" is undefined RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN; main.c(32): error: #20: identifier "GPIOA" is undefined GPIOA->CRL &= ~(0x0F << (BUTTON_PIN * 4)); // ???? main.c(36): error: #20: identifier "GPIOC" is undefined GPIOC->CRH &= ~(0xFF << 0); // ???? main.c(40): error: #20: identifier "GPIOB" is undefined GPIOB->CRH &= ~(0x0F << 0); main.c(48): warning: #223-D: function "__NOP" declared implicitly __NOP(); main.c(54): error: #20: identifier "GPIOB" is undefined GPIOB->BSRR = (1 << BUZZER_PIN); // ?? main.c(63): error: #20: identifier "GPIOC" is undefined GPIOC->BSRR = (1 << FAN_PIN1); // ?? main.c(66): error: #20: identifier "GPIOC" is undefined GPIOC->BRR = (1 << FAN_PIN1); // ?? main.c(70): error: #20: identifier "GPIOC" is undefined GPIOC->BRR = (1 << FAN_PIN1) | (1 << FAN_PIN2); // ?? main.c(82): error: #268: declaration may not appear after executable statement in block uint8_t fan_state = 0; main.c(83): error: #268: declaration may not appear after executable statement in block uint8_t fan_direction = 1; // 1=??, 0=?? main.c(97): warning: #223-D: function "sprintf" declared implicitly sprintf(buffer, "Temp: %.1fC", temp); main.c(113): error: #20: identifier "GPIOA" is undefined if ((GPIOA->IDR & (1 << BUTTON_PIN)) == 0) { // ????(???) main.c: 2 warnings, 27 errors compiling dht11.c... dht11.h(10): error: #20: identifier "uint8_t" is undefined uint8_t DHT11_Read(float *temp, float *humid); dht11.c(7): error: #20: identifier "GPIOA" is undefined GPIOA->CRL &= ~(0x0F << (4 * DHT11_PIN)); // ???? dht11.c(15): error: #20: identifier "uint8_t" is undefined uint8_t DHT11_Read(float *temp, float *humid) { dht11.c(16): error: #20: identifier "uint8_t" is undefined uint8_t data[5] = {0}; dht11.c(17): error: #20: identifier "uint8_t" is undefined uint8_t i, j; dht11.c(20): error: #20: identifier "GPIOA" is undefined GPIOA->CRL &= ~(0x0F << (4 * DHT11_PIN)); // ???? dht11.c(22): warning: #223-D: function "Delay_ms" declared implicitly Delay_ms(18); dht11.c(41): error: #268: declaration may not appear after executable statement in block uint32_t count = 0; dht11.c(41): error: #20: identifier "uint32_t" is undefined uint32_t count = 0; dht11.c: 1 warning, 8 errors compiling tft_gfx.c... tft_gfx.c(11): error: #20: identifier "RCC" is undefined RCC->APB2ENR |= RCC_APB2ENR_SPI1EN; tft_gfx.c(11): error: #20: identifier "RCC_APB2ENR_SPI1EN" is undefined RCC->APB2ENR |= RCC_APB2ENR_SPI1EN; tft_gfx.c(14): error: #20: identifier "GPIOA" is undefined GPIOA->CRL &= ~(0xFFF << 20); // ??PA5, PA6, PA7?? tft_gfx.c(14): warning: #61-D: integer operation result is out of range GPIOA->CRL &= ~(0xFFF << 20); // ??PA5, PA6, PA7?? tft_gfx.c(18): error: #20: identifier "SPI1" is undefined SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI; tft_gfx.c(18): error: #20: identifier "SPI_CR1_MSTR" is undefined SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI; tft_gfx.c(18): error: #20: identifier "SPI_CR1_SPE" is undefined SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI; tft_gfx.c(18): error: #20: identifier "SPI_CR1_SSM" is undefined SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI; tft_gfx.c(18): error: #20: identifier "SPI_CR1_SSI" is undefined SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI; tft_gfx.c(19): error: #20: identifier "SPI_CR1_BR_0" is undefined SPI1->CR1 |= SPI_CR1_BR_0; // 36MHz/4 = 9MHz tft_gfx.c(25): error: #20: identifier "GPIOA" is undefined GPIOA->CRL &= ~(0xFF << (4 * TFT_CS_PIN)); tft_gfx.c(33): warning: #223-D: function "Delay_ms" declared implicitly Delay_ms(100); tft_gfx.c(43): error: #20: identifier "SPI1" is undefined while (!(SPI1->SR & SPI_SR_TXE)); // ???????? tft_gfx.c(43): error: #20: identifier "SPI_SR_TXE" is undefined while (!(SPI1->SR & SPI_SR_TXE)); // ???????? tft_gfx.c(45): error: #20: identifier "SPI_SR_BSY" is undefined while (SPI1->SR & SPI_SR_BSY); // ?????? tft_gfx.c(50): error: #20: identifier "GPIOA" is undefined GPIOA->BRR = (1 << TFT_DC_PIN); // DC=0(??) tft_gfx.c(58): error: #20: identifier "GPIOA" is undefined GPIOA->BSRR = (1 << TFT_DC_PIN); // DC=1(??) tft_gfx.c(85): error: #20: identifier "GPIOA" is undefined GPIOA->BSRR = (1 << TFT_DC_PIN); // DC=1(??) tft_gfx.c(88): error: #254: type name is not allowed for (uint32_t i = 0; i < 320 * 240; i++) { tft_gfx.c(88): error: #65: expected a ";" for (uint32_t i = 0; i < 320 * 240; i++) { tft_gfx.c(88): error: #20: identifier "i" is undefined for (uint32_t i = 0; i < 320 * 240; i++) { tft_gfx.c(103): warning: #223-D: function "TFT_DrawChar" declared implicitly TFT_DrawChar(x, y, *str, font, color); tft_gfx.c(100): warning: #177-D: variable "char_height" was declared but never referenced uint8_t char_height = font->height; tft_gfx.c(110): error: #159: declaration is incompatible with previous "TFT_DrawChar" (declared at line 103) void TFT_DrawChar(uint16_t x, uint16_t y, char c, FontDef *font, uint16_t color) { tft_gfx.c(114): error: #254: type name is not allowed for (uint8_t row = 0; row < font->height; row++) { tft_gfx.c(114): error: #65: expected a ";" for (uint8_t row = 0; row < font->height; row++) { tft_gfx.c(114): error: #20: identifier "row" is undefined for (uint8_t row = 0; row < font->height; row++) { tft_gfx.c(116): error: #254: type name is not allowed for (uint8_t col = 0; col < font->width; col++) { tft_gfx.c(116): error: #65: expected a ";" for (uint8_t col = 0; col < font->width; col++) { tft_gfx.c(116): error: #20: identifier "col" is undefined for (uint8_t col = 0; col < font->width; col++) { tft_gfx.c(118): warning: #223-D: function "TFT_DrawPixel" declared implicitly TFT_DrawPixel(x + col, y + row, color); tft_gfx.c(125): error: #159: declaration is incompatible with previous "TFT_DrawPixel" (declared at line 118) void TFT_DrawPixel(uint16_t x, uint16_t y, uint16_t color) { tft_gfx.c(135): error: #20: identifier "GPIOA" is undefined GPIOA->BSRR = (1 << TFT_DC_PIN); // DC=1(??) tft_gfx.c(138): error: #254: type name is not allowed for (uint32_t i = 0; i < w * h; i++) { tft_gfx.c(138): error: #65: expected a ";" for (uint32_t i = 0; i < w * h; i++) { tft_gfx.c: 5 warnings, 30 errors compiling system_stm32f10x.c... compiling fonts.c... fonts.c(29): error: #20: identifier "NULL" is undefined FontDef Font_16x26 = {16, 26, NULL}; // ?????????? fonts.c: 0 warnings, 1 error compiling misc.c... C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c(99): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_NVIC_PRIORITY_GROUP(NVIC_PriorityGroup)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c(117): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NVIC_InitStruct->NVIC_IRQChannelCmd)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c(159): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_NVIC_VECTTAB(NVIC_VectTab)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c(178): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_NVIC_LP(LowPowerMode)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c(202): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\misc.c: 5 warnings, 0 errors compiling stm32f10x_gpio.c... C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(111): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(178): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(286): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(308): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(324): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(346): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(361): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(377): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(397): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(420): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(437): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(466): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_EVENTOUT_PORT_SOURCE(GPIO_PortSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(486): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(554): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_REMAP(GPIO_Remap)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(613): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_EXTI_PORT_SOURCE(GPIO_PortSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c(632): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ETH_MEDIA_INTERFACE(GPIO_ETH_MediaInterface)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_gpio.c: 16 warnings, 0 errors compiling stm32f10x_rcc.c... C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(273): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_HSE(RCC_HSE)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(338): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_CALIBRATION_VALUE(HSICalibrationValue)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(357): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(383): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_PLL_SOURCE(RCC_PLLSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(404): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(568): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_SYSCLK_SOURCE(RCC_SYSCLKSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(612): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_HCLK(RCC_SYSCLK)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(638): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_PCLK(RCC_HCLK)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(664): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_PCLK(RCC_HCLK)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(703): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_IT(RCC_IT)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(731): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_USBCLK_SOURCE(RCC_USBCLKSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(770): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_ADCCLK(RCC_PCLK2)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(832): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_LSE(RCC_LSE)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(865): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(882): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_RTCCLK_SOURCE(RCC_RTCCLKSource)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(896): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1067): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_AHB_PERIPH(RCC_AHBPeriph)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1098): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_APB2_PERIPH(RCC_APB2Periph)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1129): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_APB1_PERIPH(RCC_APB1Periph)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1188): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_APB2_PERIPH(RCC_APB2Periph)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1219): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_APB1_PERIPH(RCC_APB1Periph)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1240): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1253): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_FUNCTIONAL_STATE(NewState)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1285): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_MCO(RCC_MCO)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1332): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_FLAG(RCC_FLAG)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1406): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_GET_IT(RCC_IT)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c(1451): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_CLEAR_IT(RCC_IT)); C:\Keil_v5\ARM\PACK\Keil\STM32F1xx_DFP\1.0.5\Device\StdPeriph_Driver\src\stm32f10x_rcc.c: 27 warnings, 0 errors assembling startup_stm32f10x_hd.s... compiling system_stm32f10x.c... ".\Objects\01.axf" - 66 Error(s), 56 Warning(s). Target not created. Build Time Elapsed: 00:00:20
06-27
在项目中启用MicroLib以支持printf在Keil中：-打开目标选项（OptionsforTarget）-在Target选项卡中勾选"UseMicroLIB"###12.修改DHT11_Read函数中的变量声明在dht11.c中，将变量声明放在函数开头：```cuint8_tDHT11_...
..\1.2姝ｅ弽杞琝Hardware\Motor.c(54): warning: #223-D: function "PWM_SetVoltage" declared implicitly
最新发布
08-02
#### 步骤5：消除隐式声明警告 完成以上步骤后，编译器在编译`motor.c`时，由于包含了`pwm.h`，会看到函数声明，因此不会产生隐式声明警告。 ### 额外建议 - **编译器选项**：在较新的C标准（如C99、C11）中，隐式...
keil warning: #951-D: return type of function "main" must be "int"，明明前面增加了int类型
03-31
嗯，用户遇到了Keil编译器的警告#951-D，说main函数的返回类型必须是int，但用户明明已经在前面加了int类型。这看起来有点矛盾，我需要仔细分析可能的原因。 首先，我应该确认基本的C语言规范。C标准确实要求main...
keil warning: #223-D: function “XXX“ declared implicitly
fenhong91的博客
05-09 3488
4、头文件的预定义声明重复了，有两个一样的；2、定义错误，检查字母大小写是否不一致；3、定义不规范，在其他头文件中有定义；1、函数没有头文件在中定义；
warning: #223-D: function “XXXXXX“ declared implicitly
Unarmed_的博客
08-10 1万+
错误：warning: #223-D: function “XXXXXX(某函数名)” declared implicitly 问题所在：头文件没有声明或者没有引用。 例： 这里，我虽然声明了对应的头文件，但是之前声明的时候将该头文件注释了，所以才出了问题，只要把该注释去掉即可。 ...
【问题解决】 Warning: #223-D: function “round“ declared implicitly
丨晋丨
04-22 2229
问题 编译警告： Warning: #223-D: function "round" declared implicitly 原因 浮点计算中引用了数学库 math.h 中的round函数 解决 添加c99模式： Keil：Options for Target——C/C++——勾选C99 Mode Gcc：-std=c99
解决“warning: #223-D: function “xPortSysTickHandler“ declared implicitly“告警提示
OMGMac的博客
08-17 5698
继上篇文章发布已有时隔两个月之久，今天就把这两个月遇到的一些问题解决分享一下，首先，我们来看今天分享的这个关于我在学习freertos遇到的一个告警。如图所示
STM32 Keil：warning: #223-D: function “LED_Init“ declared implicitly
m0_63482948的博客
11-03 1520
后来发现，我在学习过程中，跟着视频在Keil5中新建了LED.h和LED.c，但没有修改存储路径，将他们存储到了UESR；在学习32过程中，编译遇到”STM32 Keil：warning: #223-D: function "LED_Init" declared implicitly“的警告，但是main.c中已包含LED.h，LED.h的头文件中也声明了相关函数。但这个问题也让我明白，Keil5工程栏中的存储方式与实际物理存储不一定是一样的，在add new....时一定要注意修改存储路径。
Keil编译警告warning: #223-D: function " *** " declared implicitly
heie_ha的博客
06-16 5万+
是因为没有将涉及到的头文件加入编译路径，警告的意思是函数定义隐含， 需要在魔术棒C/C++选项卡中的include puth中加入用到的没有加入的头文件路径 ...
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