VC0706 driver for radio shack camera shield
Sample Code
#include "mbed.h" #include "SDFileSystem.h" #include "CameraShield.h" #include <stdio.h> unsigned char VC0706_rx_buffer[80]; SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd", PTE6, SDFileSystem::SWITCH_POS_NO, 25000000); // MOSI, MISO, SCLK, SSEL CameraShield camera(PTC17, PTC16); void CapturePhoto() { uint32_t frame_length = camera.VC0706_get_frame_buffer_length(); //get frame buffer length uint32_t vc_frame_address = READ_DATA_BLOCK_NO; FILE* camFile = fopen("/sd/temp.jpg", "w"); while(vc_frame_address<frame_length) { camera.VC0706_read_frame_buffer(vc_frame_address - READ_DATA_BLOCK_NO, READ_DATA_BLOCK_NO); wait_ms(9); //get the data with length=READ_DATA_BLOCK_NObytes camera.buffer_read(VC0706_rx_buffer, 80); // write data to temp.jpg fwrite(VC0706_rx_buffer + 5, sizeof(char), READ_DATA_BLOCK_NO, camFile); //read next READ_DATA_BLOCK_NO bytes from frame buffer vc_frame_address = vc_frame_address + READ_DATA_BLOCK_NO; } // get the last data vc_frame_address = vc_frame_address - READ_DATA_BLOCK_NO; uint32_t last_data_length = frame_length - vc_frame_address; camera.VC0706_read_frame_buffer(vc_frame_address, last_data_length); wait_ms(9); //get the data camera.buffer_read(VC0706_rx_buffer, 80); fwrite(VC0706_rx_buffer+5, sizeof(char), last_data_length, camFile); fclose(camFile); } int main (void) { // Check to see if the file exists: // if exists,delete the file: sd.remove("/sd/temp.jpg"); camera.Init(); camera.VC0706_image_size(VC0706_640x480); camera.ResumeVideo(); wait_ms(500); while(1) { camera.ResumeVideo(); wait_ms(1000); camera.TakeSnapShot(); CapturePhoto(); } }
CameraShield.h
- Committer:
- davidr99
- Date:
- 2014-12-18
- Revision:
- 1:5cff9e627e06
- Parent:
- 0:e5fc19091502
File content as of revision 1:5cff9e627e06:
/***************************************************************************************** ** File: CameraShield.h ** ** ** ** For radio shack Camera Shield. ** ** http://blog.radioshack.com/2013/01/radioshack-camera-shield-for-arduino-boards/ ** *****************************************************************************************/ #ifndef CAMERA_SHIELD_H #define CAMERA_SHIELD_H #include "mbed.h" #include "string.h" #include "MODSERIAL.h" #define VC0706_PROTOCOL_SIGN 0x56 #define VC0706_SERIAL_NUMBER 0x00 #define VC0706_COMMAND_RESET 0x26 #define VC0706_COMMAND_GEN_VERSION 0x11 #define VC0706_COMMAND_TV_OUT_CTRL 0x44 #define VC0706_COMMAND_OSD_ADD_CHAR 0x45 #define VC0706_COMMAND_DOWNSIZE_SIZE 0x53 #define VC0706_COMMAND_READ_FBUF 0x32 #define FBUF_CURRENT_FRAME 0 #define FBUF_NEXT_FRAME 0 #define VC0706_COMMAND_FBUF_CTRL 0x36 #define VC0706_COMMAND_COMM_MOTION_CTRL 0x37 #define VC0706_COMMAND_COMM_MOTION_DETECTED 0x39 #define VC0706_COMMAND_POWER_SAVE_CTRL 0x3E #define VC0706_COMMAND_COLOR_CTRL 0x3C #define VC0706_COMMAND_MOTION_CTRL 0x42 #define VC0706_COMMAND_WRITE_DATA 0x31 #define VC0706_COMMAND_GET_FBUF_LEN 0x34 #define READ_DATA_BLOCK_NO 56 #define VC0706_640x480 0x00 #define VC0706_320x240 0x11 #define VC0706_160x120 0x22 class CameraShield { public: CameraShield ( PinName tx, PinName rx, int speed = 115200 ); void Init(); void VC0706_reset(); void VC0706_get_version(); void VC0706_tv_out_control(int on); void VC0706_osd_add_char(int col, int row, char * osd_string); void VC0706_w_h_downsize(int scale_width, int scale_height); void VC0706_read_frame_buffer(unsigned long buffer_address, unsigned long buffer_length); void VC0706_frame_control(char frame_control); void VC0706_motion_detection(int control_flag); void VC0706_motion_control(int control_flag); void VC0706_get_framebuffer_length(char fbuf_type); void VC0706_uart_power_save(char power_save_on); void VC0706_uart_color_control(char show_mode); void VC0706_compression_ratio(int ratio); void VC0706_motion_windows_setting(unsigned int register_address, unsigned long data); uint32_t VC0706_get_frame_buffer_length(); void VC0706_image_size(int ratio); void TakeSnapShot(); void ResumeVideo(); void buffer_send(unsigned char *buff, int buffSize); int buffer_read(unsigned char *buff, int buffSize); private: MODSERIAL _serial; }; #endif