[问答]

xilinx fpga。microblaze ,uart串口通信软件设计求帮忙改成能回送数据的。。。

6204 uart

问答对人有帮助，内容完整，我也想知道答案 0 #include #include "xparameters.h" #include "xuartlite.h" #include "xintc.h" #include "xil_exception.h" #include "xgpio.h" #include "xstatus.h" #include "xgpio_l.h" #include "xil_assert.h" #include "xil_io.h" #include "xuartlite_l.h" /************************ Constant Definitions **************************/ #define XPAR_GPIO_0_DEVICE_ID 1 #define UARTLITE_DEVICE_ID XPAR_UARTLITE_1_DEVICE_ID #define INTC_DEVICE_ID XPAR_INTC_0_DEVICE_ID #define UARTLITE_INT_IRQ_ID XPAR_INTC_0_UARTLITE_1_VEC_ID #define GPIO_DEVICE_ID XPAR_GPIO_0_DEVICE_ID /XPAR_GPIO2MCU_DEVICE_ID/ / * The following constant controls the length of the buffers to be sent * and received with the UartLite device. / #define TEST_BUFFER_SIZE 50 /*********************** Function Prototypes ***************************/ int CodeRecv(u16 DeviceId); int UartIntConfig(XUartLite UartLitePtr); void SendHandler(void CallBackRef, unsigned int EventData); //void RecvHandler(void CallBackRef, unsigned int EventData); void RecvHandler(void); void WriteFIFO(u8 data); int ReadFIFO(void); /************************ Variable Definitions **************************/ XUartLite UartLite; / The instance of the UartLite Device / XIntc IntCtrl; / The instance of the Interrupt Controller / XGpio GpioOutput; u8 ReceiveBuffer[50]={0}; u8 SendBuffer[50]={0}; / u8 SendBuffer[50]={0x01,0x02,0x31,0x43,0x55,0xAA,0x0C,0xA9,0x08,0x01, 0x04,0x00,0x07,0x08,0x09,0x0A,0x00,0x00,0x00,0x00, 0xE4,0xA5,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, 0x0E,0x0F,0x01,0x02,0x31,0x43,0x00,0x00,0x01,0x02}; / / * The following counters are used to determine when the entire buffer has * been sent and received. / static volatile int TotalReceivedCount; static volatile int TotalSentCount; static volatile int uf; /**************************************************************************/ / * * * @head FIFO头，用于串口的接收数据的写入 * @tail FIFO尾，用于串口的接收数据的读出 * @bar 写入的数据已经完成一圈 * * *****************************************************************************/ static volatile int head,tail,bar; static volatile u8 hasrev; /**************************************************************************/ / * * Main function to call the UartLite interrupt example. * * @param None * * @return XST_SUCCESS if successful, XST_FAILURE if unsuccessful * * @note None * *****************************************************************************/ int main(void) { uf=0; if(! XGpio_Initialize(&GpioOutput, GPIO_DEVICE_ID)) return XST_FAILURE; // if(! XGpio_SelfTest(&GpioOutput)){ // return XST_FAILURE; // } if (! CodeRecv(UARTLITE_DEVICE_ID)) return XST_FAILURE; return XST_SUCCESS; } /*************************************************************************/ / * * This function does a minimal test on the UartLite device and driver as a * design example. The purpose of this function is to illustrate * how to use the XUartLite component. * * This function sends data and expects to receive the same data through the * UartLite. The user must provide a physical loopback such that data which is * transmitted will be received. * * This function uses interrupt driver mode of the UartLite device. The calls * to the UartLite driver in the handlers should only use the non-blocking * calls. * * @param DeviceId is the Device ID of the UartLite Device and is the * XPAR__DEVICE_ID value from xparameters.h. * * @return XST_SUCCESS if successful, otherwise XST_FAILURE. * * @note * * This function contains an infinite loop such that if interrupts are not * working it may never return. * ***************************************************************************/ int CodeRecv(u16 DeviceId) { int sum=0,k=0; int index,temp; int p=0; int l = 0; if ( XUartLite_Initialize(&UartLite, DeviceId)!= XST_SUCCESS) return XST_FAILURE; / * Perform a self-test to ensure that the hardware was built correctly. / /Status = XUartLite_SelfTest(&UartLite); if (Status != XST_SUCCESS) { return XST_FAILURE; }///在串口没接的情况下，串口自检会失败 / * Connect the UartLite to the interrupt subsystem such that interrupts can * occur. This function is application specific. / if (UartIntConfig(&UartLite)!=XST_SUCCESS) return XST_FAILURE; / * Enable the interrupt of the UartLite so that interrupts will occur. / XUartLite_EnableInterrupt(&UartLite); //XUartLite_SendByte(XPAR_RS232_BASEADDR, SendBuffer[*uf++]); while(1){ u8 SendCMD [16]={0}; sum=0; temp=ReadFIFO(); while(temp==-1) temp=ReadFIFO(); if((u8)temp==0x55) { temp=ReadFIFO(); while(temp==-1) temp=ReadFIFO(); if((u8)temp==0xaa){ for(index=0;index<15;index++) { temp=ReadFIFO(); while(temp==-1) temp=ReadFIFO(); SendCMD[index]=temp; sum +=temp; } sum &=0xff; temp=ReadFIFO(); while(temp==-1) temp=ReadFIFO(); if(sum == temp){ /p=0; for (k=1;k<12;k++) { XGpio_WriteReg(XPAR_GENERIC_GPIO_BASEADDR,0,SendCMD[k+p]+((k+16)<<8)); for (sum=0;sum<2;sum++); XGpio_WriteReg(XPAR_GENERIC_GPIO_BASEADDR,0,0); p=(k>1)?1:0; } / p=0; l = 0; for (k=1;k<12;k++) { XGpio_WriteReg(XPAR_GENERIC_GPIO_BASEADDR,0,SendCMD[k+p+l]+((k+16)<<8)); for (sum=0;sum<2;sum++); XGpio_WriteReg(XPAR_GENERIC_GPIO_BASEADDR,0,0); p=(k != 0)?1:0; l = (k < 9 )?0:2; } p=0; } } } } return XST_SUCCESS; } /**************************************************************************/ / * * This function is the handler which performs processing to send data to the * UartLite. It is called from an interrupt context such that the amount of * processing performed should be minimized. It is called when the transmit * FIFO of the UartLite is empty and more data can be sent through the UartLite. * * This handler provides an example of how to handle data for the UartLite, * but is application specific. * * @param CallBackRef contains a callback reference from the driver. * In this case it is the instance pointer for the UartLite driver. * @param EventData contains the number of bytes sent or received for sent * and receive events. * * @return None. * * @note None. * ***************************************************************************/ void SendHandler(void CallBackRef, unsigned int EventData) { TotalSentCount = EventData; } /**************************************************************************/ / * * This function is the handler which performs processing to receive data from * the UartLite. It is called from an interrupt context such that the amount of * processing performed should be minimized. It is called data is present in * the receive FIFO of the UartLite such that the data can be retrieved from * the UartLite. The size of the data present in the FIFO is not known when * this function is called. * * This handler provides an example of how to handle data for the UartLite, * but is application specific. * * @param CallBackRef contains a callback reference from the driver, in * this case it is the instance pointer for the UartLite driver. * @param EventData contains the number of bytes sent or received for sent * and receive events. * * @return None. * * @note None. * **************************************************************************/ void RecvHandler(void) { //while(!XUartLite_IsReceiveEmpty(XPAR_RS232_BASEADDR)) WriteFIFO(XUartLite_RecvByte(XPAR_RS232_BASEADDR)); //XUartLite_SendByte(XPAR_RS232_BASEADDR, SendBuffer[(uf++)%50]); } /*************************************************************************/ / * * This function setups the interrupt system such that interrupts can occur * for the UartLite device. This function is application specific since the * actual system may or may not have an interrupt controller. The UartLite * could be directly connected to a processor without an interrupt controller. * The user should modify this function to fit the application. * * @param UartLitePtr contains a pointer to the instance of the UartLite * component which is going to be connected to the interrupt * controller. * * @Return XST_SUCCESS if successful, otherwise XST_FAILURE. * * @note None. * ***************************************************************************/ int UartIntConfig(XUartLite UartLitePtr) { int Status; /* * Initialize the interrupt controller driver so that it is ready to * use. / Status = XIntc_Initialize(&IntCtrl, INTC_DEVICE_ID); if (Status != XST_SUCCESS) { return XST_FAILURE; } / * Connect a device driver handler that will be called when an interrupt * for the device occurs, the device driver handler performs the * specific interrupt processing for the device. / Status = XIntc_Connect(&IntCtrl, UARTLITE_INT_IRQ_ID, (XInterruptHandler)RecvHandler, (void )UartLitePtr); if (Status != XST_SUCCESS) { return XST_FAILURE; } /* * Start the interrupt controller such that interrupts are enabled for * all devices that cause interrupts, specific real mode so that * the UartLite can cause interrupts through the interrupt controller. / Status = XIntc_Start(&IntCtrl, XIN_REAL_MODE); if (Status != XST_SUCCESS) { return XST_FAILURE; } / * Enable the interrupt for the UartLite device. / XIntc_Enable(&IntCtrl, UARTLITE_INT_IRQ_ID); / * Initialize the exception table. / Xil_ExceptionInit(); / * Register the interrupt controller handler with the exception table. / Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT, (Xil_ExceptionHandler)XIntc_InterruptHandler, &IntCtrl); / * Enable exceptions. / Xil_ExceptionEnable(); return XST_SUCCESS; } /*************************************************************************/ / * * This function setups the interrupt system such that interrupts can occur * for the UartLite device. This function is application specific since the * actual system may or may not have an interrupt controller. The UartLite * could be directly connected to a processor without an interrupt controller. * The user should modify this function to fit the application. * * @param UartLitePtr contains a pointer to the instance of the UartLite * component which is going to be connected to the interrupt * controller. * * @return XST_SUCCESS if successful, otherwise XST_FAILURE. * * @note None. * **************************************************************************/ void WriteFIFO(u8 data) { ReceiveBuffer[head] =data; if(head==49) { bar=1; head=0; } else head++; } /************************************************************************/ / * * This function setups the interrupt system such that interrupts can occur * for the UartLite device. This function is application specific since the * actual system may or may not have an interrupt controller. The UartLite * could be directly connected to a processor without an interrupt controller. * The user should modify this function to fit the application. * * @param UartLitePtr contains a pointer to the instance of the UartLite * component which is going to be connected to the interrupt * controller. * * @return XST_SUCCESS if successful, otherwise XST_FAILURE. * * @note None. * **************************************************************************/ int ReadFIFO(void) { if(tail return ReceiveBuffer[tail++]; else if(tail==head) return -1; else if(bar) { if(tail<49) return ReceiveBuffer[tail++]; else { bar=0; tail=0; return ReceiveBuffer[49]; } } else return -1; } ************************************************************************************************** 现成的从上位机到软核的串口软件代码，，现在需要添加往上位机回送数据的代码，，要求原样不动的回送回去就行求大神带飞。。。。 0 已退回5积分
2015-7-24 10:17:02　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × 刘英该类别下有 31 个回答。邀请回答 chenbingjy 该类别下有 27 个回答。邀请回答 yoonssica 该类别下有 22 个回答。邀请回答 houxiaoxiao 该类别下有 17 个回答。邀请回答小萃米该类别下有 16 个回答。邀请回答小工兵该类别下有 16 个回答。邀请回答 Elecfans管家该类别下有 15 个回答。邀请回答薄迪该类别下有 14 个回答。邀请回答我爱妖妖该类别下有 14 个回答。邀请回答言尽于此33 该类别下有 14 个回答。邀请回答 hxing 该类别下有 13 个回答。邀请回答那些年儿ing 该类别下有 13 个回答。邀请回答平漂流该类别下有 13 个回答。邀请回答 xiekaboy 该类别下有 12 个回答。邀请回答 1653344032.827400 该类别下有 12 个回答。邀请回答小麦地该类别下有 12 个回答。邀请回答科比如我该类别下有 12 个回答。邀请回答倪love 该类别下有 12 个回答。邀请回答英雄孤寂该类别下有 11 个回答。邀请回答黄月明该类别下有 11 个回答。邀请回答举报 joyjie 相关推荐 • xilinx fpga串口通信microblaze软件开发sdk的一些问题求大神带飞。。 5288 • esp32s3 GPIO改成uart2之后没收到串口消息是怎么回事？ 189 • 新手求帮忙看看这是什么软件设计的板子 2317 • 使用uart通信时，通过串口助手软件发送到FPGA并不能触发中断的原因？ 612 • 怎么使用jtag端口下载数据文件进行测试 1164 • 求一种基于FPGA的SOC系统中的串口设计 1007 • 求大神帮忙改下上位机软件设计，必重谢。 2548 • 用fpga 与芯片通信，如何提取数据，弄到上位机 12811 • 求一款双MicroBlaze软核处理器的SOPC系统设计 1868 • LabVIEW FPGA和软件设计射频仪器的优势是什么？ 789 2个回答

答案对人有帮助，有参考价值 0 这么长段的代码已无力吐槽楼主应该把自己的程序标注一下提问题要提重点哦！

2015-7-24 10:38:03 评论举报低调de炫耀爱