Downloadable PDFs

• English
• Japanese

Firmware in Action

01. While camera is ON Repeat the following: 02. Signal image sensor to capture photo 03. Display captured photo on LCD 04. Check if shoot button is pressed      If pressed Do steps 5-11: 05. Read position of mode knob 06. Configure image sensor for capture 07. Signal buzzer to beep 08. Signal image sensor to capture photo 09a. Sensor turns on flash in low light 09b. Sensor takes photo 09c. Sensor compresses photo 10. Transfer photo to Flash Memory 11. Display photo on LCD Click on any instruction to see what it does Buzzer Camera Controller Memory Image Sensor USB LED Flash LCD Mode Knob Shoot Prev Next

Figure 3: Bigshot's firmware in action

Figure 3 shows Bigshot's firmware in action. While the actual instructions are long and complex strings of 0's and 1's, here they are shown in plain English so we can easily understand the action that results from each instruction. Note that the instructions given in Figure 3 represent a very small piece of the complete firmware. It only describes the sequence of actions taken by the controller in the particular event where the photographer presses the shoot button while the camera is in the Auto Flash mode. Some of the instructions (like Step 8) tell the camera controller to give orders to other components. Click on each instruction in Figure 3 to visualize the action it performs.