(__IO uint16_t *)是读取该地址的参数值,其值为16位参数.实际上是读取0x60020000寄存器的参数,或者可以说是这个IO口现在的状态.
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楼主 我感觉 第一个 USARTx->DR = (Data & (uint16_t)0x01FF);和 return (uint16_t)(USARTx->DR & (uint16_t)0x01FF) 你上面 说了 是 给数据 给 寄存器 下面 的 DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&USART1->DR; 是取寄存器的地址 我就说个 ...
1.把datetime转成字符串: 2017-11-23 17:05:18 2.把字符串转成datetime: 2017-11-23 16:10:...
= %lu\n", ucData,sizeof(ucData));printf(" usData = %u, sizeof(uint16_t) = %lu\n", usData,sizeof(usData));printf(" uiData = %u, sizeof(uint32_t) = %lu\n", uiData,sizeof(uiData));printf(" ulData = %llu, sizeof(uint64_t) = %lu\n", ullData,sizeof(ullData));ret...
* of the particular integer data types below, then it should not define the * typedefs and macros corresponding to that data type. Note that int8_t * is not defined in -Xs mode on ISAs for which the ABI specifies "char" * as an unsigned entity because there is no way to define an...
3.NSData转16进制 + (NSString *)hexStringFromData:(NSData *)data { NSAssert(data.length > 0, @"data.length <= 0"); NSMutableString *hexString = [[NSMutableString alloc] init]; const Byte *bytes = data.bytes; for (NSUInteger i=0; i<data.length; i++) { Byte value = bytes[i]...
intiData=2; longlData=3; longlongllData=4; uint8_tucData=5; uint16_tusData=6; uint32_tuiData=7; uint64_tullData=8; printf(" cData = %c, sizeof(char) = %lu\n",cData,sizeof(cData)); printf(" sData = %d, sizeof(short) = %lu\n",sData,sizeof(sData)); ...
16 bit integer typedef unsigned short uint16; //!< Unsigned 16 bit integer typedef signed long int32; //!< Signed 32 bit integer typedef unsigned long uint32; //!< Unsigned 32 bit integer typedef unsigned char bool; //!< Boolean data type ...