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SDK_codes/OV_7670.c

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+
+
+/***************************** Include Files *******************************/
+#include "OV_7670.h"
+
+/************************** Function Definitions ***************************/

SDK_codes/OV_7670.h

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+
+#ifndef OV_7670_H
+#define OV_7670_H
+
+
+/****************** Include Files ********************/
+#include "xil_types.h"
+#include "xstatus.h"
+
+#define OV_7670_S_AXI_SLV_REG0_OFFSET 0
+#define OV_7670_S_AXI_SLV_REG1_OFFSET 4
+#define OV_7670_S_AXI_SLV_REG2_OFFSET 8
+#define OV_7670_S_AXI_SLV_REG3_OFFSET 12
+
+
+/**************************** Type Definitions *****************************/
+/**
+ *
+ * Write a value to a OV_7670 register. A 32 bit write is performed.
+ * If the component is implemented in a smaller width, only the least
+ * significant data is written.
+ *
+ * @param   BaseAddress is the base address of the OV_7670device.
+ * @param   RegOffset is the register offset from the base to write to.
+ * @param   Data is the data written to the register.
+ *
+ * @return  None.
+ *
+ * @note
+ * C-style signature:
+ * 	void OV_7670_mWriteReg(u32 BaseAddress, unsigned RegOffset, u32 Data)
+ *
+ */
+#define OV_7670_mWriteReg(BaseAddress, RegOffset, Data) \
+  	Xil_Out32((BaseAddress) + (RegOffset), (u32)(Data))
+
+/**
+ *
+ * Read a value from a OV_7670 register. A 32 bit read is performed.
+ * If the component is implemented in a smaller width, only the least
+ * significant data is read from the register. The most significant data
+ * will be read as 0.
+ *
+ * @param   BaseAddress is the base address of the OV_7670 device.
+ * @param   RegOffset is the register offset from the base to write to.
+ *
+ * @return  Data is the data from the register.
+ *
+ * @note
+ * C-style signature:
+ * 	u32 OV_7670_mReadReg(u32 BaseAddress, unsigned RegOffset)
+ *
+ */
+#define OV_7670_mReadReg(BaseAddress, RegOffset) \
+    Xil_In32((BaseAddress) + (RegOffset))
+
+/************************** Function Prototypes ****************************/
+/**
+ *
+ * Run a self-test on the driver/device. Note this may be a destructive test if
+ * resets of the device are performed.
+ *
+ * If the hardware system is not built correctly, this function may never
+ * return to the caller.
+ *
+ * @param   baseaddr_p is the base address of the OV_7670 instance to be worked on.
+ *
+ * @return
+ *
+ *    - XST_SUCCESS   if all self-test code passed
+ *    - XST_FAILURE   if any self-test code failed
+ *
+ * @note    Caching must be turned off for this function to work.
+ * @note    Self test may fail if data memory and device are not on the same bus.
+ *
+ */
+XStatus OV_7670_Reg_SelfTest(void * baseaddr_p);
+
+#endif // OV_7670_H

SDK_codes/helloworld.c

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+/******************************************************************************
+*
+* Copyright (C) 2009 - 2014 Xilinx, Inc.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+/*
+ * helloworld.c: simple test application
+ *
+ * This application configures UART 16550 to baud rate 9600.
+ * PS7 UART (Zynq) is not initialized by this application, since
+ * bootrom/bsp configures it to baud rate 115200
+ *
+ * ------------------------------------------------
+ * | UART TYPE   BAUD RATE                        |
+ * ------------------------------------------------
+ *   uartns550   9600
+ *   uartlite    Configurable only in HW design
+ *   ps7_uart    115200 (configured by bootrom/bsp)
+ */
+
+#include <stdio.h>
+#include "platform.h"
+#include "xil_printf.h"
+#include "OV_7670.h"
+#include "xil_types.h"
+#include "xstatus.h"
+#include "xil_io.h"
+int main()
+{
+    init_platform();
+
+    print("Hello World\n\r");
+
+
+    while(1){
+    	//OV_7670_mWriteReg(0x43C00000, 4, 0x80000000); //camera
+
+
+
+    	int pixels = OV_7670_mReadReg(0x43C00000, 0);
+
+		int onlyred   = pixels & 0x00000f00;//3840-3584-3328-3072-2816-2560-2304-2048-1792-1536-1280-1024-768-512-256
+		int onlygreen = pixels & 0x000000f0;//240-224-208-192-176-160-144-128-112-96-80-64-48-32-16
+		int onlyblue  = pixels & 0x0000000f;//15-0
+
+
+
+		//if (onlyred<3584) onlyred = 3584;
+		if (onlygreen>160) onlygreen = 160;
+		//if (onlyblue>12) onlyblue = 12;
+		int value = 0x00000000 | onlyred | onlygreen | onlyblue  ;
+		OV_7670_mWriteReg(0x43C00000, 4, value);
+		//int r2b= blue * 256;
+		//int r2g = green * 16;
+		//int g2r= red / 16;
+		//int g2b= blue * 16;
+		//int b2g= green / 16;
+		//int b2r= red / 256;
+		//int value = 0x00000000 | b2r | r2b | green ;
+		//xil_printf("red : %d, green : %d, blue : %d\n\r",onlyred,green,onlyblue);
+		//xil_printf("red : %d, green : %d, blue : %d\n\r",r2b,green,b2r);
+		//OV_7670_mWriteReg(0x43C00000, 4, value);
+    	//sleep(1);
+
+    }
+    cleanup_platform();
+    return 0;
+}

SDK_codes/platform.c

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+/******************************************************************************
+*
+* Copyright (C) 2010 - 2015 Xilinx, Inc.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+#include "xparameters.h"
+#include "xil_cache.h"
+
+#include "platform_config.h"
+
+/*
+ * Uncomment one of the following two lines, depending on the target,
+ * if ps7/psu init source files are added in the source directory for
+ * compiling example outside of SDK.
+ */
+/*#include "ps7_init.h"*/
+/*#include "psu_init.h"*/
+
+#ifdef STDOUT_IS_16550
+ #include "xuartns550_l.h"
+
+ #define UART_BAUD 9600
+#endif
+
+void
+enable_caches()
+{
+#ifdef __PPC__
+    Xil_ICacheEnableRegion(CACHEABLE_REGION_MASK);
+    Xil_DCacheEnableRegion(CACHEABLE_REGION_MASK);
+#elif __MICROBLAZE__
+#ifdef XPAR_MICROBLAZE_USE_ICACHE
+    Xil_ICacheEnable();
+#endif
+#ifdef XPAR_MICROBLAZE_USE_DCACHE
+    Xil_DCacheEnable();
+#endif
+#endif
+}
+
+void
+disable_caches()
+{
+#ifdef __MICROBLAZE__
+#ifdef XPAR_MICROBLAZE_USE_DCACHE
+    Xil_DCacheDisable();
+#endif
+#ifdef XPAR_MICROBLAZE_USE_ICACHE
+    Xil_ICacheDisable();
+#endif
+#endif
+}
+
+void
+init_uart()
+{
+#ifdef STDOUT_IS_16550
+    XUartNs550_SetBaud(STDOUT_BASEADDR, XPAR_XUARTNS550_CLOCK_HZ, UART_BAUD);
+    XUartNs550_SetLineControlReg(STDOUT_BASEADDR, XUN_LCR_8_DATA_BITS);
+#endif
+    /* Bootrom/BSP configures PS7/PSU UART to 115200 bps */
+}
+
+void
+init_platform()
+{
+    /*
+     * If you want to run this example outside of SDK,
+     * uncomment one of the following two lines and also #include "ps7_init.h"
+     * or #include "ps7_init.h" at the top, depending on the target.
+     * Make sure that the ps7/psu_init.c and ps7/psu_init.h files are included
+     * along with this example source files for compilation.
+     */
+    /* ps7_init();*/
+    /* psu_init();*/
+    enable_caches();
+    init_uart();
+}
+
+void
+cleanup_platform()
+{
+    disable_caches();
+}

SDK_codes/platform.h

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+/******************************************************************************
+*
+* Copyright (C) 2008 - 2014 Xilinx, Inc.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+#ifndef __PLATFORM_H_
+#define __PLATFORM_H_
+
+#include "platform_config.h"
+
+void init_platform();
+void cleanup_platform();
+
+#endif

SDK_codes/platform_config.h

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+#ifndef __PLATFORM_CONFIG_H_
+#define __PLATFORM_CONFIG_H_
+
+#define STDOUT_IS_PS7_UART
+#define UART_DEVICE_ID 0
+#endif