Diff: Hardwares/ArduCAM.cpp

Revision:

34:f79db3bc2f86

Parent:

33:e3fcc4d6bb9b

Child:

35:ac4fcca21560

--- a/Hardwares/ArduCAM.cpp	Fri Mar 03 18:26:44 2017 +0000
+++ b/Hardwares/ArduCAM.cpp	Thu Mar 09 19:21:50 2017 +0000
@@ -17,35 +17,52 @@
 
 DigitalOut testLED2(LED_RED, 1);
 
-/*
-inline static uint8_t ardu_cam_spi_io(int address, int value = 0x00)
+
+inline void ardu_cam_spi_write_8(int address, int value)
 {
-    //g_spi_port.lock();
-    
+    // take the SS pin low to select the chip:
+    cam_cs = 0;
+    //  send in the address and value via SPI:
+    g_spi_port.write(address | 0x80);
+    g_spi_port.write(value);
+    // take the SS pin high to de-select the chip:
+    cam_cs = 1;
+}
+ 
+inline uint8_t ardu_cam_spi_read_8(int address)
+{ 
+    // take the SS pin low to select the chip:
     cam_cs = 0;
-    g_spi_port.write(address);
-    uint8_t result = g_spi_port.write(value);
+    //  send in the address and value via SPI:
+    g_spi_port.write(address & 0x7F);
+    uint8_t value = static_cast<uint8_t>(g_spi_port.write(0x00));
+    // take the SS pin high to de-select the chip:
     cam_cs = 1;
+    return value;
+}
+/*
+inline void ardu_cam_spi_set_burst()
+{
+    cam_cs = 0;
+    
+    g_spi_port.write(BURST_FIFO_READ & 0x7F);
     
-    //g_spi_port.unlock();
+    cam_cs = 1;
+}
+
+inline uint16_t ardu_cam_spi_burst_read_16()
+{
+    cam_cs = 0;
     
-    return result;
+    uint16_t value = static_cast<uint16_t>(g_spi_port.write(0x00));
+    value = (value << 8) & 0xFF00;
+    value = value | static_cast<uint16_t>(g_spi_port.write(0x00));
+    
+    cam_cs = 1;
+    return value;
 }
 */
 
-//Write ArduChip internal registers
-void ardu_cam_write_reg(uint8_t addr, uint8_t data)
-{
-    ardu_cam_bus_write(addr | 0x80, data);
-}
- 
-//Read ArduChip internal registers
-uint8_t ardu_cam_read_reg(uint8_t addr)
-{
-    uint8_t data;
-    data = ardu_cam_bus_read(addr & 0x7F);
-    return data;
-}
 
 bool ardu_cam_init()
 {
@@ -62,7 +79,7 @@
     camReg->SCCBWrite(0xff, 0x01);
     camReg->SCCBWrite(0x12, 0x80);
     wait_ms(5);
-    camReg->WriteRegSet(OV2640Prog::QQVGA);
+    camReg->WriteRegSet(OV2640Prog::QVGA);
     wait_ms(100);
     
     camReg->SCCBWrite(0xff, 0x01);
@@ -85,15 +102,15 @@
     
     
     
-    uint8_t VerNum = ardu_cam_read_reg(0x40);
-    VerNum = ardu_cam_read_reg(0x40);
+    uint8_t VerNum = ardu_cam_spi_read_8(0x40);
+    VerNum = ardu_cam_spi_read_8(0x40);
     
     
     sprintf(buf, "Ardu Ver %#x", VerNum);
     g_core.GetUSBServer().PushReliableMsg('D', buf);
     
-    ardu_cam_write_reg(ARDUCHIP_TEST1, ARDUCHIP_TEST_MSG);
-    uint8_t testV = ardu_cam_read_reg(ARDUCHIP_TEST1);
+    ardu_cam_spi_write_8(ARDUCHIP_TEST1, ARDUCHIP_TEST_MSG);
+    uint8_t testV = ardu_cam_spi_read_8(ARDUCHIP_TEST1);
     if(VerNum != 0x61 || testV != ARDUCHIP_TEST_MSG)
     {
         g_core.GetUSBServer().PushReliableMsg('D', "CameraInit Fa");
@@ -125,95 +142,53 @@
     switch(mode)
     {
         case MCU2LCD_MODE:
-            ardu_cam_write_reg(ARDUCHIP_MODE, MCU2LCD_MODE);
+            ardu_cam_spi_write_8(ARDUCHIP_MODE, MCU2LCD_MODE);
             break;
         case CAM2LCD_MODE:
-            ardu_cam_write_reg(ARDUCHIP_MODE, CAM2LCD_MODE);
+            ardu_cam_spi_write_8(ARDUCHIP_MODE, CAM2LCD_MODE);
             break;
         //case LCD2MCU_MODE:
-            //ardu_cam_write_reg(ARDUCHIP_MODE, LCD2MCU_MODE);
+            //ardu_cam_spi_write_8(ARDUCHIP_MODE, LCD2MCU_MODE);
             //break;
         default:
-            ardu_cam_write_reg(ARDUCHIP_MODE, CAM2LCD_MODE);
+            ardu_cam_spi_write_8(ARDUCHIP_MODE, CAM2LCD_MODE);
             break;
     }
 }
 
 void ardu_cam_start_capture()
 {
-    ardu_cam_write_reg(ARDUCHIP_FIFO, FIFO_CLEAR_MASK);
-    ardu_cam_write_reg(ARDUCHIP_CAP_CTRL, 0x00);
-    ardu_cam_write_reg(ARDUCHIP_FIFO, FIFO_START_MASK);
+    ardu_cam_spi_write_8(ARDUCHIP_FIFO, FIFO_CLEAR_MASK);
+    ardu_cam_spi_write_8(ARDUCHIP_CAP_CTRL, 0x00);
+    ardu_cam_spi_write_8(ARDUCHIP_FIFO, FIFO_START_MASK);
 }
 
 uint32_t ardu_cam_get_fifo_length()
 {
     uint32_t len1,len2,len3,length=0;
-    len1 = ardu_cam_read_reg(FIFO_SIZE1);
-    len2 = ardu_cam_read_reg(FIFO_SIZE2);
-    len3 = ardu_cam_read_reg(FIFO_SIZE3) & 0x07;
+    len1 = ardu_cam_spi_read_8(FIFO_SIZE1);
+    len2 = ardu_cam_spi_read_8(FIFO_SIZE2);
+    len3 = ardu_cam_spi_read_8(FIFO_SIZE3) & 0x07;
     length = ((len3 << 16) | (len2 << 8) | len1) & 0x07ffff;
     return length;
 }
 
-int ardu_cam_bus_write(int address, int value)
-{
-    // take the SS pin low to select the chip:
-    cam_cs = 0;
-    //  send in the address and value via SPI:
-    g_spi_port.write(address);
-    g_spi_port.write(value);
-    // take the SS pin high to de-select the chip:
-    cam_cs = 1;
-    
-    return value;
-}
- 
-uint8_t ardu_cam_bus_read(int address)
-{ 
-    uint8_t value = 0;
-    // take the SS pin low to select the chip:
-    cam_cs = 0;
-    //  send in the address and value via SPI:
-    g_spi_port.write(address);
-    value = g_spi_port.write(0x00);
-    // take the SS pin high to de-select the chip:
-    cam_cs = 1;
-    return value;
-}
-
 uint8_t ardu_cam_get_pixel()
 {
-    uint16_t VH = ardu_cam_read_reg(SINGLE_FIFO_READ);
-    uint16_t VL = ardu_cam_read_reg(SINGLE_FIFO_READ);
-    
-    //char buf[20];
-    //sprintf(buf, "h%#x", VH);
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
-    //sprintf(buf, "l%#x", VL);
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
+    uint16_t VH = ardu_cam_spi_read_8(SINGLE_FIFO_READ);
+    uint16_t VL = ardu_cam_spi_read_8(SINGLE_FIFO_READ);
+    //uint16_t VL = ardu_cam_spi_burst_read_16();
     
     VL = (VL & 0x00FF) | ((VH << 8) & 0xFF00);
     uint8_t ch = ((VL & 0xF800) >> 9);// << 2;
     float pixel = (static_cast<float>(ch) * 0.21);
     
-    //sprintf(buf, "c%#x", ch);
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
-    
     ch = ((VL & 0x07E0) >> 3);// << 2;
     pixel += (static_cast<float>(ch) * 0.72);
     
-    //sprintf(buf, "c%#x", ch);
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
-    
     ch = (VL & 0x001F) << 2;
     pixel += (static_cast<float>(ch) * 0.07);
     
-    //sprintf(buf, "c%#x", ch);
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
-    //sprintf(buf, "p%#x", static_cast<uint8_t>(pixel));
-    //g_core.GetUSBServer().PushReliableMsg('D', buf);
-    
     return static_cast<uint8_t>(pixel);
 }
 
@@ -231,6 +206,7 @@
     std::string lineBuf;
     lineBuf.resize(RESOLUTION_WIDTH + 1);
     
+    //ardu_cam_spi_set_burst();
     ardu_cam_get_pixel(); //Get the first dummy pixel
     
     for (uint8_t i = 0; i < RESOLUTION_HEIGHT; ++i)
@@ -244,7 +220,7 @@
         }
         
         g_core.GetUSBServer().PushReliableMsg('P', lineBuf);
-        wait(0.4);
+        wait(0.40);
     }
     
 }
\ No newline at end of file