问答

can使能后发送数据，如果can总线上没有其他节点接收数据，单片机直接重启。接上接收设备后，单片机正常工作。can配置代码如下 //CAN Config static void App_CANCfg(void) { stc_can_init_t stcCanInit; /************************* Configure CAN1***************************/ stc_can_filter_config_t astcFilter1[1U] = { {0x1UL, 0x0000UL, CAN_ID_STD}, }; /* Initializes CAN. */ (void)CAN_StructInit(&stcCanInit); stcCanInit.stcBitCfg.u32Prescaler = 12U; stcCanInit.stcBitCfg.u32TimeSeg1 = 5U; stcCanInit.stcBitCfg.u32TimeSeg2 = 3; stcCanInit.stcBitCfg.u32SJW = 3; stcCanInit.pstcFilter = astcFilter1; stcCanInit.u16FilterSelect = CAN_FILTER1; stcCanInit.u8WorkMode = CAN_WORK_MD_NORMAL;//CAN_WORK_MD_ELB; stcCanInit.u8PTBSingleShotTx = CAN_PTB_SINGLESHOT_TX_ENABLE; stcCanInit.u8STBSingleShotTx = CAN_STB_SINGLESHOT_TX_ENABLE; stcCanInit.u8STBPrioMode = CAN_STB_PRIO_MD_DISABLE; stcCanInit.u8RxWarnLimit = 10U; stcCanInit.u8ErrorWarnLimit = 15U; stcCanInit.u8RxAllFrame = CAN_RX_ALL_FRAME_DISABLE; stcCanInit.u8RxOvfMode = CAN_RX_OVF_DISCARD_NEW; stcCanInit.u8SelfAck = CAN_SELF_ACK_DISABLE; /* Enable peripheral clock of CAN. */ FCG_Fcg1PeriphClockCmd(FCG1_PERIPH_CAN, ENABLE); (void)CAN_Init(CM_CAN, &stcCanInit); CAN_ExitLocalReset(CM_CAN); /* Enable the interrupts, the status flags can be read. */ CAN_IntCmd(CM_CAN, CAN_INT_ALL, DISABLE); CAN_IntCmd(CM_CAN, CAN_INT_ERR_INT|CAN_INT_RX_BUF_WARN|CAN_INT_RX|CAN_INT_BUS_ERR, ENABLE); }

/* send the internal register address to */i2c_data_transmit(I2C0, read_address); /* wait until BTC bit is set */ while(!i2c_flag_get(I2C0, I2C_FLAG_BTC); [b][color=#800080]一直卡在上面[/color][/b] [b][color=#800080]请问什么原因？[/color][/b]

/* * File: main.c * Author: Administrator * */ #pragma config FOSC = INTOSC, WDTE = OFF, PWRTE = OFF, MCLRE = ON #include void Delay_50us(unsigned int n) { unsigned char i; while (n--) { for (i = 0; i < 104; i++); } } void Delay_ms(unsigned int n) { while (n--) { Delay_50us(20); } } void main(void) { TRISCbits.TRISC0 = 0; LATCbits.LATC0 = 1; while (1) { LATCbits.LATC0 = 0; Delay_ms(500); LATCbits.LATC0 = 1; Delay_ms(500); } return; } 这个程序闪灯不生效

最近了解到了TCM，但不会使用想请教一下各位大佬该如何使用

F460 的DMA串口发送 软件AOS触发不了 #define USART_DMA_UNIT (M4_DMA1) #define RX_DMA_CH (DmaCh0) #define RX_DMA_TRG_SEL (EVT_USART1_RI) #define TX_DMA_CH (DmaCh1) #define TX_DMA_TRG_SEL (EVT_USART1_TI) /* DMA block transfer complete interrupt */ #define RX_DMA_BTC_INT_NUM (INT_DMA1_TC0) #define RX_DMA_BTC_INT_IRQn (Int006_IRQn) #define TX_DMA_BTC_INT_NUM (INT_DMA1_TC1) #define TX_DMA_BTC_INT_IRQn (Int005_IRQn) void dma_tx_init(void) { stc_dma_config_t stcDmaInit; stc_irq_regi_conf_t stcIrqRegiCfg; /* Enable peripheral clock */ PWC_Fcg0PeriphClockCmd(PWC_FCG0_PERIPH_DMA1 | PWC_FCG0_PERIPH_DMA2,Enable); /* Enable DMA. */ DMA_Cmd(USART_DMA_UNIT,Enable); /* Initialize DMA. */ MEM_ZERO_STRUCT(stcDmaInit); stcDmaInit.u16BlockSize = 10u; /* 1 block */ stcDmaInit.u32SrcAddr = ((uint32_t)(send_buff)); /* Set source address. */ stcDmaInit.u32DesAddr = (uint32_t)(&USART_CH->DR); /* Set destination address. TDR*/ stcDmaInit.stcDmaChCfg.enLlpEn = Disable; /* Disable linked list transfer. */ stcDmaInit.stcDmaChCfg.enSrcInc = AddressIncrease; /* Set source address mode. */ stcDmaInit.stcDmaChCfg.enDesInc = AddressFix; /* Set destination address mode. */ stcDmaInit.stcDmaChCfg.enIntEn = Enable; /* Enable interrupt. */ stcDmaInit.stcDmaChCfg.enTrnWidth = Dma8Bit; /* Set data width 8bit. */ stcDmaInit.u16TransferCnt = 1; DMA_InitChannel(USART_DMA_UNIT, TX_DMA_CH, &stcDmaInit); /* Enable the specified DMA channel. */ DMA_ChannelCmd(USART_DMA_UNIT, TX_DMA_CH, Enable); /* Clear DMA flag. */ DMA_ClearIrqFlag(USART_DMA_UNIT, TX_DMA_CH, TrnCpltIrq); /* Enable peripheral circuit trigger function. */ PWC_Fcg0PeriphClockCmd(PWC_FCG0_PERIPH_PTDIS,Enable); /* Set DMA trigger source. */ DMA_SetTriggerSrc(USART_DMA_UNIT, TX_DMA_CH, EVT_AOS_STRG); /* Set DMA block transfer complete IRQ */ stcIrqRegiCfg.enIRQn = TX_DMA_BTC_INT_IRQn; stcIrqRegiCfg.pfnCallback = &Dma_TX_IrqCallback; stcIrqRegiCfg.enIntSrc = TX_DMA_BTC_INT_NUM; enIrqRegistration(&stcIrqRegiCfg); NVIC_SetPriority(stcIrqRegiCfg.enIRQn, DDL_IRQ_PRIORITY_DEFAULT); NVIC_ClearPendingIRQ(stcIrqRegiCfg.enIRQn); NVIC_EnableIRQ(stcIrqRegiCfg.enIRQn); AOS_SW_Trigger(); } 以上就是初始化，没法正常输出，有时候会输出一个字节 还想请问下 block是指 的是一次发送数据的量吧，u16TransferCnt 这个是指发送数据的次数 总数据量应该是 block*u16TransferCnt 吧。不知道这里有没有理解错误

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CQvt45xk3NFRHW1i2s2a+mqzSa3qIUpkxv7dDc58RJ6tGbczllk1cXkl3YFLKgQQKnqUWHzetBP9FIjKWfYYGSwNouC6h60Fie6oWVA++uKkRR3MO3wYjcNUBqfSeuEGbfPxGBDCRJJK4rBJhJfplBQ3UhHZxedHR10948xY10TEPNZmehtoiyvlPKqShp7FBhtBqRlqUjqWynPzaN7yobXpkHaWEFRWS0trc1U5afyMrEKhcPEWEsBBWXNqAxO9P2VvMyqR2kRZOMPbGTldiqpF+agC/c4Oy7cY0UA0LetR/xDdH9FQNcDNGBB3YF5j89pZLA6jXs3b3AnpYFpizZgTXMK6hmZNmHUGxjvG0DjcGDRjNCQ94x7KaW0D6oYb84jNTmRtJpRLCsq+glzPiFIND8H1eH0eDFOdCHJzKamV4lB3UN+Qjo1Ayq0UyPUZiaRXtLFtODipmctKa9+om8BUBPD9TnklbcyrjUxPVC3ZEEFQItKOt8MaFEbE5phyjPSKG9XoDOYmZlUoRhTYH5ta0YfBmFQSH9MQmEDUqUFr8eBWlrI04xcJPlCAMmDZ3aQouwsipoHmNZM0VuRQfwrAVAz8jYJ+UW1DE9bMEx1kp+cQcOABoNJi1I1hWZ6bAFQIUjkYSWgP0TA3rbNQQ3o2rq4b3uza3+/mCy//L0Xs2aQhtJiZNOepSoEdr2c6sxEkgvb0TmdOPRymktzSEpIIiUtg+puJWa3D59DR399DmmFDch1TqxTXRRl5tMsN66u6Dc3F1hm6S7PpnHIgMs7h89tZqS9kpySBhRT04w0FpCU9IqUtFRSU/Ioq+tH51LTUVxKy6AQNfVinBqmraaRcbOL2aFGctOTSC1sol/aSFF+C0qHntH2OmrqZOicXhyWMeqzS5GqbXh8FuSd9dTU9qK129GNNpOXmkrSqyQyCyrom7SsWxbFZ5qiqzyZ5JJWxo3CvNCDZUZKXnI6hY1juARX1aWnr05CWuJLklKSycjMISe3hSmXC6OiA0nmK5IKmlFopxmXVpHxKpmkV9lUtA4xY1PRUSTco3bpHltrmpiwiC7uN8vH+8+P/gHWxZ3D53UHIrLuFSF+v9+L02YJrDPOlxrx4rRbMBoMGI0mbIsJBn4fbodtaZ1P2F/FZrXhXAoOrZgT+b2BRAWHe7kcicdlx2K14/b48DptmExGjCZTIIlhPklCaId9KRFAaKvTMb+mKCRSWM0mTBY7LpcDm82JR5jTOR04FhIs/H4hCcM+v44prDkG/jafkCG0Vfi9cE8miy0waCwPXGvbPS+LxbVMv8+NzWzBurRGLKx32jAbBfkYMVusWK3OQOKH3+PCZjFhNNsD807BAluE+zSYsAXa+YZ7XHdddUW73sFa77r3+z2fN6gtqJiL+/4rYDBCEUxtEgFdtcwiAhFMyim2RVxmCUQORUUQB6Zg1YGgtqAbFSRazsUVFTVYFXWztksEVHRxVyUjbFYQgvW+gxpQMUgkWvRgBWej2hXUgG6Ui7tRwhavIw4431QHghpQ0YKKCv1NFfp9O14EdFWq3w8TCP/iIv5rqXkbez8/nGDbu66HvPp8S/3xDpIcREDXBokCGxK5AxsauZc2Klr52NXGKv1KiyDUGvIsbYQktMOOqreLlqoBZl0augoakY3P4l6pGMJmUF7vqlItwhMzq2r+BI5ZzGj6NvfnxqDqpTqjmjHjYorktznP6t8IG1HN98GK/lh1/6uPXymrxc9+ny+wlLaUaO9zoOmvJz+zGrnpW5SYCWyutaI9bifGiQ4Kkovp086i6OyktXYY0zsaLEVAVwHqxTjZScqlMI4dCyU09DgRp55QPaTBuVLpv4PPQtqeoIzLu5ytVj6/10xveSLXX+QzrLUuRF5naUtN4O65XIatUhIO3CCrfgTrivbpBqt4kZZKq2K+UoPHOkNbYTyP8zqYFdIMfV60PRIevipiYMa6fiWEOeExMCduodTJinMvf7ahaEvl/PYYKiYcbzjH6vtZ/u3633vsBtqyLnE64hhHDx/m0MEjHDsezunnJch19je0Y+25nEy0F1BQWI7CuNB2t4G+/Nsc3n2ZWtXKJ4yWfxvYcc61sibV4t88zIzU8+LCMY4K+nH8BFE3U6gouM/hT06S0z9CzYsXPLhYhHLp4fzF3367dxHQVYC6UUmzOb/rl0Q/yqOouISy8g4UOivedRXz2wn9deUUFCmH1Fcp9GnXfzDZo+/hadx+fvHTw2S2KrAH3NpZWlNfcvdsDsMWKS/33yCrbiWgfiyyfMIjonhUOYzDLwxALVzZ+hN+vvsSTRoXXo+TruRwDl5+SZ/GtuKRuMV78+O0KCh/Fktuhxbnihzl5fsQAE0hZts5ysffDaA+twNVfx0VZRncPnmckJ3nSCgqoaJzBINtTbWHN/WN30Jn5nliYm/RNrUAqN+NeXqM3u4RZtfZVHluzo26r4T0+Od0TK1N0Hcy1vCc07u3EPu8kOKSMiqb+lBOjtLb3o/aMkV9/HPuX5Qw8Y4B3dRFw5YV7fUdtgN/8/twmGZQTxtw+IRNds3M6GYwOxxY9dPMGvRoxseRj40xOa3D5p5Xbr9XKH2iRCGXI5dPMD1jwS2A5fdgM2jmf6ecZEI5RnV8FGGHQ0lvmcbsWOsm+pjpyOTKzevEHd/L1fR6pqwCyIuA5r4B0Dm8uk4ehh8l5ll1YPPhqb5Cwv/fVvaE7yVVasZtn6LoahT3cprQ2r24bHpUCgVyuZypGQMOt1DKpJIbez4gOqGJMY0Vj9B+vZZJ4b4U40wbdIy2pBCz5TTZnXJG5XIU6lnsgQJofjwuM9pxBfIxOROCfIRH7/zChsJalML38gnUM+Z52bwG2yytKS+5ey4PhXdx8PLjdVnQTszLXC6USjHZXx9E1wN0zofLZmJ2xoxLmM44zGhU48jlCiaUMxitGloyLnNi/14S6iYx2lbWoJoH9FJEGMXDi9/78Tot6DRGHF4NDQuAKoXYhm+5/8cnpzAEysssDnxf7120oGss6JQ0m7i9v+NKWgNt7R10jagwmozI8u8RduwaFfIppJUJRN24RVlPN5JrezkVd4Uzu/fw2ZbfsOvwWbI7ZnF4LYx35XBx924++2Qb27d8RfiZVzQqZ7E6VJTcPMCpuMucCQnjyLFzHPyHv+JH//NH/CLkLpUDmlXzSL9rhrqke9x+lk1LxTNCwu5RPabH418E9E0WdA6/R0fdkxOcuplCn1KHtPAKe88+4MblcC5kSbFM1nPl6CWS6oYx2XX0FD3hxO7P+fTjX7Hn1B1KpZ2kx4Tws//2X/nxh19xPrEW+WQbaZdOsue3W9m5ey9Xchrpqk3g1D9s5cCJcLZv/YgP98Yi6VThcMzQW5ZIzOdfsGP7Vr48EUteiwLT7BTVD6P5/ItP2fbpIS4+qmJyvad+hEFoFaACnDNIK55z6pMd7Ni2nU8/PkjMfQl9s2s8nfUAdZsYLE0k7lQ6AxYjQ6UviTiwky3bv+Bg2COKGrM4+9H/5S///M/5x6+uUtg1iWtp0JgH9Mz+z7ib3Ux7RycD4yrGW7O4cPAZrbMK6hYAHfeYUUpLuHs4hC+2beOz/Ud4kNfOrG1xkHkPAN2oddDl6OO8BY345V/ws999we6v9nLwVhb9U2asmiGy7x0kMvISMWfjuCnpRmMcIeX4r/h45xXKByaYHmvn1YWThF/LpE9Rx9WD+zj9oJQRpYYZeRepl6KJuJ5J/6yC9FMf8fGncZTIJtDq1bSkXeBU+CkKpUaER9CWrfocdnktN+POcKeoj5mZTh6FHOR+6SAWt27JxR1a18UVrLWX6ZYEjpy/T0lzJ/nX9/KwrJ2y9Cdcu1tIb0MCx648pnpIh8WooqmwhOqyLBJvRbH1gy85l9rIsKKR+yH/TGxGD2rNKCXPzhJy5AYV3RPoZmcx2Y2MtcSz76fbOZ/dgWq4httHjnE9pZa+jgxCf7mDE5cfE//yMeePbOXQ+Uc0NBdx9qMQYh5n0yGfxmB2vG4BA2CsAdTvZnYol4jP9nM9sx3VtBaNrJrroeFczmhCu+C9zHs+67i4bj3S7PuE7nlGt1ZKcuRJjobeorhnlGmdBbvTQE/hLaKOHCKjY94LWAowzTkZq3/OoZ//JT/fsouv9h3g4qty2kuec/TjG9Rqx+YBjStgeLqea7t2ERJxlSfxL7h14TD7DxwjX7beNOLNsAa1Bd0oQJdhmAf06tFdJLXoAs9h2pxuvEJEzm9luP4+W//Lf+eDL67SoHbitMnJjN7ChaRWtDY/fp+ZrhwB4EuUFyaz6+g18nqnFtxaCz15d7h88Q5NCjk557ZxPqGRaaswN7IhK7rBhTMXqBtfDefcnJPh8gfs//hDDsXc5enju4Rt+zs+OZHEoEFFy5+cgwod78ela+FOxC2SslK4duoSZcNqhuoyeHA1loe3LxBzPxGZxoZFLaUw4Sl3rp0j7OBnfPDXnxLzqpGJWSkvj/+WWyXjWFW9PLt6jpPxDeiXgkY2FK0pnN16hhK5FbdLQ9nNCzxOL6M5K46//emv2HngCKFhYRw7eoQLLwrpk/eQeyWOM5FxPHiWSH5lF9P2tfcutH+W1uQVLq7HzmTlPT4++pi26fnynj6Plsp7J7nyrBCFeYWyr2tBFwF9To9VRVv2c2JDo7l+7zHJGWUMzOgZqn3KxZPhlIysnWrMW9C440fI6TFitdpw2M1MNiauBjQ2n4HOJD796Df8+rN9HA0LI/TYESKvPqZu1LzOPH9Fm5es9fx3QQ3oRiUqrAX02rEvSe0043S58XjmtyFwmlVUJ59k/8e7+HJ/JC8bFRgtY6RG/o69tyQoZ+3YtENkXg4lIu45bT3FRO47yrWsDnRWJ27jeKDe7qUnBYzqFeTEbCMupZUZm9ARNvqLb3IhOoaqMdeqSK7fNkHRrQg++uBzTsRe5NKlWKIjvuLjn35JUtcg9YLyns3hjRZ0bg6vS01x7AkuxYRy4EoxY3oHppEqHt49xO79sSTlNKOzWZBX3GbrzhOkNCvQyEo4/9lhYhcBDf8tNySjGHUj5NyL4kRcKoM6B3b7FMMjSgbrkxaCRHbcbi0Vt2J5klVJZ308B76IILtTHXgQfErWz5BcjsE0yqBci0rRQ8qFfewPiaJyfHFet1Jh1wAqlP/sTmL/5+Ek1MuxOlw4NVJeXLnEo8J29J4Vv10A9Nz5GzRNuHC7PXgENz7rHqF7ntNjmGRiYoIJlYrGtCuEbPmER/Vj9FU/42LEcSQDjtXLUYIFbXhOYA46tNBWrx1V0xpA4woYUpQSfeAw9/J70JhsgXKpgz296Jbm0SvauQbKZX0UHzdb87iZEMHL48zWv+PjL48Rdjyck5E3yGmUUZN5lYgz58lvaSP38VkOnLtHjayTtIhfsm3PMQ6HRXB032EOH7pCVocCk2ua9vy7RHweQuiRUI4fDCM8+hEF/VNY7RMUXPyCqxnt6OxCR3lQt6UTE7KFXWdf0Tymw7PQadaJVu5E7eNUfBNGjzdQ9c+s6ebRsY85kVxBbVIiD2MLGLH2kXT0LrmNo6uWWYTO9nvdKEsusW/nrwlN6kVv9+O3ycl9Es4Hv4skt3Ecj9eJujuHsN07OXD0GJEnD/LpLw5xLbUFtXmSkqufsWVfFPdyG5G1ZnIj9BAhB8I5GXWLrKZ++pvSuPjFRaqUDjzuGarvX+FFQSMTmgGKboZz4KtQwsLCuXDlGXX9Koz6YYoTLhN18hh7Dx3g5O1UxmbXRk0F2czSnp7EozgJEwHl9uG0jlH+/AJHdoQQFhrG8f3HOXk9jWaVcbWb7LfQnR3H3t/+nM8PHOd4RBQXH2dRnHSHiIMJ9BrV9FQmcPmMEAc4wK4TF6kb0qGWFnH1yO/YGfmM6v7pFfEAJ/KmRK5Hn6JsZAFQn4OplhRO7LhLw4yChlcJPL5WwrhTTUfaZcL2HOXo0eNEnb1KTs0Ahm8Y3Q1qC7rxLq4fp3ma3oZSioskgVqtJaX1yMY1jGn6b5YAAAlHSURBVA+00to3gcXjwjQ9QnuXFLmqn8yo3xJ1K4XMglIkkiraeiexBhapheiljsGGGkolwrmqaJUqsfgEV9jO9HAnIyrjUmkRj0VLf3s1JbVdTOhtS2uJbquOQVkHQ9OWpXmpsAQxOdxKpxC9FIpSD01j9ZqZlI6h1ttWK2kAdD8ewzhtzQ3IVJaF8p9OdIo+Gpt7URkcAVfYbZ9lqKWCkmIJFbW1NDX0MaYSaia50cs7qayqoaV/CrvTyERfKxVFxZSVd6E0WbAYpxjuHEZn9+H3u9DJR5iY1uP0erBqR2gsK6WoqIiGrqFA9Xth0JgeaqSyTIKksp4epWGV57BsRdwYVZMohjQLS0sCtD4cZhXdFWUUSyQUFdXTK59ZZ63ai2lqiJbKIiRCHxSXUt02gHJ8FJlUidnrw6wepKWmCElJGTV9k9jdPrw2PcNdtZTUtDO2sK3FfHt82PRKRgb60QamJsIc34fTMImsY4xZl41ZoT9GtDiEcjOWKbrrqiiRSKhqaEX5LZI4ghrQjXJxl4NEX8/tmO8sPy5hDnrmEy5mdDHr+Ca/FY9dBlCUxZ+ShQjoqmWWb6YsHscUFY9OEl8+iMn5zX77pzpF/Jsoy0UdEAF9C0AD7o3NhM25NtonKtiigonvb6cLIqBvA+ifiL6Jivl2iinKb15+i4CKqX4ibEtBKBGO4BlcFgENyv1BNz6KGzwdI0Ii9oWgA0ENaHBHcUUFEgeR714HREDFOajo2gbx9CaoAd0oF1dI53vtyf1ANYWVT86Ln0UZbYwOCPq4uDYf1IBulIsrXEev14svUQZBoQMGgyGQAy7OQRfr1fjniz4Jo5b4EmUQDDqwOL8Pagu6US7uojuxKBTx/bsPfogy/noyXgRUXAcN4kCBqMxfT5nfRzktAhqU66AbNQcVLejmBSDYoRYBFZdZxGWWIPaeNjWgguX0iYCKgIqA8o3+/f73v6etrQ3RxRVdz2B3Qb/r9m1qCypYz3dqQRf3SNnIEfn7uOZG3t8mv1ZQA/r9LLP48Xm9gf1MhD1NvMJeIP8pBB5M6hHaSqTMuNerq/MOLKF/zR4jcy70E4O0V8jQufUM1XUgG9Lg2OQK/V1btI0+f1ADuvEurlDDpoes29GcjjzN6dNRnD33nErZJNalEpPrwSaUnczjxt4XSG2uN5ZVFPb8ENK43rT/yhs7329H0V7I48QceiZNC3NGC4NVmdw6/Io+6xDZUXd5ld2JQQT0vZpTLwK6qddBl5dZ5uvixnz+ISeEQmAZmaTeusSxE+E8KR/B6Hzz5kHy1lyuf/WcnjcC6kTZkU9WRg6DujedZz345/BZx8h5dJwPf7KH56UyLAGLLgCawY1DifRZB8mKvENiVgd6EdD3EtCgXAfdeBd3HtBroXvIlNrxCXt3mCZpKbhHxIG71CqNeOaEso9GtCoVqqkpZow2PD4rKwH1zQl7r+iYVqmYUk+jtzpx2TU0JEZzIuwkeV3C/iQevF4HRs00UyoV6plZrMKeJa8B5sc8XMWjO7GcPnqIqy8LGDUK2+aJgL4uq/UHuB/ycYsWdFMDutyBawEVOtyHRdPGo8Of8rB6nNlZOdUvbxC6dTvbd2zn2PVkpEoNI80LFtRqwaDuIiMukn2fbOPTXbs5/7KAxspUTvzsr/lf/+MvAvuvVMhGGO7I5/rePezctpUvjkaRUjuMdeXWBQKsXjPSogRu3XpBbVUS4SdvkN+jxuVfD1DRxV3uy/cD1qAGdOPnoPPbDwoWNCNgQecBtc32khC+gwdl3dSl3yRkyyGuPEniVcJdTu7+NTGp9XRU5wRc3G5dP1mXIgjZe4YHL5N58SiOo198wt3SHqriBQt6ivwuLZrRUs5v20V47CMSkl9y48xeDp+8TL3CtcqKujV9JN2K4mxSM1qjjITjodzIbEPnMIku7mvexvsB5cpBZtMCupikICyzrJyDCvuDrgLU78E4Vs3lEzEUNLeReW0/P/7Jr/li/wFCQvaz/8BBbuY301WTxfWvntE1WMmFg5/wtx9uZc+BEA4c2EdIWCRJTcN05l3hwtmLNCgc6Oof8PN//JDf7PySAyEh7N/7FeHXEmifsK0A1MNUVzaRO/6JfTGPSElO5Pzef+LjIw/pnFbTL85BV8jq/YNTAHXTAirc/OI66EpAhe0Hr4V+RVqXJfAQt13ZReqNsxy5W8yIWk5l4nlCwh/QpjRjMZkDW57LDWqGW+Zd3C5lG49jjhN1T8KozopJp2OkoxOVQ4+08BoXzsZSO2ZHL8vg8K5QEuvG0JttaMfGGB4axrhyawCXjrbUWH77d79l/8lIoqOjiAjbxW/+9lMe1/XRWZ4uBonecysqArrGgk715nJm69+z/cApoqKiiY6O5eK9FBoVBlw+J9r+Iu6fOMThI1GcOXOOu0/ykek0jLTlc/vAS6SWGYYqnnLu0FHCjkdzLiaO+Iw6lA4byqZXnAnZxv6LaTT1t1N6/xSH958kMjKauMsPKGkdxRzYNmLeGjhnRki5uIc9V4tQO1x4vR5sxiFendjCwceFNErSuHMsGZl1iJwz90nO6RKXWd4zYEVAVwHqw26cpL0sm8yMdNIzMsgubWV81rq0V8qcx4Kyr4nCjAwys7JpGpzG5vZgnZ1ksHVsfoMjxwyyxgpy0tPJyZcgnbQG9kNxG1V01UnIKmlBrjVh1Y1QV5hHZno6xbWtTJpWR3E9diODPbW0y2eX1k79XheqgXrqZGNoJxUMdigwCpvF9gyhUOpXbDb7frp8K+dnm+GzCOgqQEWl3gxK/0O6x6AGdKPWQX9IHSa2dXMNokEN6MYvs2yuzhdhD/7+XgR0U6f6iYoa/Iq6WftoEdCgzCTaKAu6WTtfvO/gH5g2NaDC+ufyGmjwd5YI1Obro6AG1Gg0Bh7PEh7REl+iDDajDqjVaqRSKUHl4v7hD38IlDxpbm4OvAvlT8SXKIPNqAMNDQ3IZLLgAvSPf/xjIMdyM46Y4j2LnsJaHfjXf/3Xb1TT6+se/Gdf90DxOFECogQ2XgIioBsvc/GKogS+tgREQL+2qMQDRQlsvAREQDde5uIVRQl8bQmIgH5tUYkHihLYeAmIgG68zMUrihL42hIQAf3aohIPFCWw8RIQAd14mYtXFCXwtSUgAvq1RSUeKEpg4yXw/wGJgun6gr5yDAAAAABJRU5ErkJggg==[/img]

我在配置HC32F460的时钟，遇到了一个比较鬼畜的问题。我按照如下代码设置了时钟，但奇怪的是，我在硬件上端接晶振引脚，按说芯片会宕机才对，但芯片居然毫无影响，继续运行。想麻烦大家帮我看看，是我哪里设置的不对 [color=#d4d4d4][backcolor=rgb(30, 30, 30)][font=Menlo, Monaco, "][size=12px] [color=#569cd6]void[/color] [color=#dcdcaa]SystemClk_Init[/color]([color=#569cd6]void[/color]) { [color=#4ec9b0]stc_clk_sysclk_cfg_t[/color] [color=#9cdcfe]stcSysClkCfg[/color]; [color=#4ec9b0]stc_clk_xtal_cfg_t[/color] [color=#9cdcfe]stcXtalCfg[/color]; [color=#4ec9b0]stc_clk_mpll_cfg_t[/color] [color=#9cdcfe]stcMpllCfg[/color]; [color=#569cd6]MEM_ZERO_STRUCT[/color]([color=#9cdcfe]stcSysClkCfg[/color]); [color=#569cd6]MEM_ZERO_STRUCT[/color]([color=#9cdcfe]stcXtalCfg[/color]); [color=#569cd6]MEM_ZERO_STRUCT[/color]([color=#9cdcfe]stcMpllCfg[/color]); [color=#6a9955]/* Set bus clk div. */[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enHclkDiv[/color] = [color=#4fc1ff]ClkSysclkDiv1[/color]; [color=#6a9955]// 168MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enExclkDiv[/color] = [color=#4fc1ff]ClkSysclkDiv2[/color]; [color=#6a9955]// 84MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enPclk0Div[/color] = [color=#4fc1ff]ClkSysclkDiv1[/color]; [color=#6a9955]// 168MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enPclk1Div[/color] = [color=#4fc1ff]ClkSysclkDiv2[/color]; [color=#6a9955]// 84MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enPclk2Div[/color] = [color=#4fc1ff]ClkSysclkDiv4[/color]; [color=#6a9955]// 42MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enPclk3Div[/color] = [color=#4fc1ff]ClkSysclkDiv4[/color]; [color=#6a9955]// 42MHz[/color] [color=#9cdcfe]stcSysClkCfg[/color].[color=#9cdcfe]enPclk4Div[/color] = [color=#4fc1ff]ClkSysclkDiv2[/color]; [color=#6a9955]// 84MHz[/color] [color=#dcdcaa]CLK_SysClkConfig[/color](&[color=#9cdcfe]stcSysClkCfg[/color]); [color=#6a9955]/* Switch system clock source to MPLL. */[/color] [color=#6a9955]/* Use Xtal as MPLL source. */[/color] [color=#9cdcfe]stcXtalCfg[/color].[color=#9cdcfe]enMode[/color] = [color=#4fc1ff]ClkXtalModeOsc[/color]; [color=#9cdcfe]stcXtalCfg[/color].[color=#9cdcfe]enDrv[/color] = [color=#4fc1ff]ClkXtalLowDrv[/color]; [color=#9cdcfe]stcXtalCfg[/color].[color=#9cdcfe]enFastStartup[/color] = [color=#4fc1ff]Disable[/color]; [color=#dcdcaa]CLK_XtalConfig[/color](&[color=#9cdcfe]stcXtalCfg[/color]); [color=#dcdcaa]CLK_XtalCmd[/color]([color=#4fc1ff]Enable[/color]); [color=#6a9955]/* MPLL config. */[/color] [color=#9cdcfe]stcMpllCfg[/color].[color=#9cdcfe]pllmDiv[/color] = [color=#b5cea8]1u[/color]; [color=#9cdcfe]stcMpllCfg[/color].[color=#9cdcfe]plln[/color] = [color=#b5cea8]42u[/color]; [color=#9cdcfe]stcMpllCfg[/color].[color=#9cdcfe]PllpDiv[/color] = [color=#b5cea8]2u[/color]; [color=#9cdcfe]stcMpllCfg[/color].[color=#9cdcfe]PllqDiv[/color] = [color=#b5cea8]2u[/color]; [color=#9cdcfe]stcMpllCfg[/color].[color=#9cdcfe]PllrDiv[/color] = [color=#b5cea8]2u[/color]; [color=#dcdcaa]CLK_SetPllSource[/color]([color=#4fc1ff]ClkPllSrcXTAL[/color]); [color=#dcdcaa]CLK_MpllConfig[/color](&[color=#9cdcfe]stcMpllCfg[/color]); [color=#6a9955]/* flash read wait cycle setting */[/color] [color=#dcdcaa]EFM_Unlock[/color](); [color=#dcdcaa]EFM_SetLatency[/color]([color=#569cd6]EFM_LATENCY_4[/color]); [color=#dcdcaa]EFM_Lock[/color](); [color=#6a9955]/* Enable MPLL. */[/color] [color=#dcdcaa]CLK_MpllCmd[/color]([color=#4fc1ff]Enable[/color]); [color=#6a9955]/* Wait MPLL ready. */[/color] [color=#c586c0]while[/color] ([color=#4fc1ff]Set[/color] != [color=#dcdcaa]CLK_GetFlagStatus[/color]([color=#4fc1ff]ClkFlagMPLLRdy[/color])) { } [color=#6a9955]/* Switch system clock source to MPLL. */[/color] [color=#dcdcaa]CLK_SetSysClkSource[/color]([color=#4fc1ff]ClkSysSrcXTAL[/color]); } [/size][/font][/backcolor][/color]

Nano130 M0 规格书里说芯片共有5个uart口，其中标准uart口两个uart0和uart1。还有三个uart是给Smart card用的，SC0_uart,SC1_uart和 SC2_uart，请问，我能把这三个Smart card用的uart用作通用的uart吗？如何设置？

[size=14px] Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE); //timer [/size] [size=14px] stc_gpio_cfg_t stcGpioCfg; [/size] [size=14px] stcGpioCfg.enDir = GpioDirIn; [/size] [size=14px] stcGpioCfg.enPu = GpioPuEnable;[/size] [size=14px] stcGpioCfg.enCtrlMode = GpioAHB;[/size] [size=14px] Gpio_Init(GpioPortB, GpioPin6,&stcGpioCfg); [/size] [size=14px] [/size] [size=14px] [/size] [size=14px] while (1) {[/size] [size=14px] [/size] [size=14px] rev_len = DevUART_Read(&gDebugUart, recv_buf, MEM_POOL_BLOCK_SIZE, OS_ALWAYS_DELAY); [/size] [size=14px] uint8_t dian;[/size] [size=14px] //unsigned char *G;[/size] [size=14px] uint8_t *G;[/size] [size=14px] dian=Gpio_GetInputIO(GpioPortB,GpioPin6);[/size] [size=14px] sprintf(G,"%d",dian); [/size] [size=14px] AT_TxFreq(0, G, rev_len);[/size] [size=14px] gEnableRadioRx = true;[/size] [size=14px] osDelayMs(10); [/size]

新人，请问IGBT的NTC测量一般需要隔离吗？

功率型NTC热敏电阻器的选用原则是什么

求助各位大神，使用的是STM32F103C8T6这个片子，编写了一个程序ROdata=412,RWdata=76,ZIdata=17428,数据量应该是没有超出20K，可是程序运行出来的结果总是出错，如果把定义的变量顺序进行一些更改，例如原来顺序为：u16 a=?; u16 b=?; float c=?; s16 d=?;程序运行后的结果为e=?; 然后把顺序更改为float c=?;u16a=?;s16 d=?;u16 b=?;程序运行后的结果为e=?; 两次得出来的结果就不同，请教一下这是什么原因造成的？

使用的为F28027的开发板，现在在做一个外部中断的下程序，但是程序怎么就下载不进去，尝试新建了几个新的工程都不行，而原先的工程却可以正常下载。 我个人也写过不少C2000的程序，都从来没遇到过这样的问题。 所出现的提示为：wideinterrupt.out could not open file. 最近就要验收了，求指教。

WAKE_UP_RTC_MAX_TIME - 睡眠唤醒所需时间，根据不同睡眠类型取值可分为：睡眠模式/下电模式 - 65(默认) 这个单位是什么？ms？还是计数值？

有关RTC闹钟的中断,就是要求每一个小时整点产生一次RTC闹钟中断,前几个小时正常,可后面就不产生RTC中断,各位指点下.