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The receiver is interrupt based and assumes that a carriage return terminated string is transmitted from that computer.
dattasheet The disadvantage with the approach daasheet that while the CPU is running through the while loop just to provide a delay it cannot be doing something else of indeed sleeping to to save power.
A better approach is to use a dedicated timer. Often we would like to control the amplitude of an output signal to vary for example the brightness of an LED datahseet the control the speed of a motor. The following example implements both the transmitter and the receiver.
Again this function is convenient for creating short delays especially when initiating peripherals but should not be used for controlling program flow as it is very power inefficient and blocks the CPU. To test the system we will attach a potentiometer between P1.
The MSPG has two 16 bit timers i.
Introducing the MSPG Hardware | Benn Thomsen
Notify me of new comments via email. You will notice the first line in the code includes a header file that comes with the Energia Install.
You are commenting using your Facebook account. In this example we are going to configure P1.
Introducing the MSP430G2553 Hardware
To program in c with Energia you simply delete the Energia code that appears when you open a new project and then open a new tab using the drop down arrow in the Energia toolbar. You are commenting using your WordPress. You can achieve the same result as above more elegantly using the delay function that is included datashwet the msp Fill in your details below or click an icon to log in: Your article help me a lot thank you very much!!!
You can use the system clock to increment the counter. Here we are going to use the Energia IDE and the msp-gcc compiler toolchain that comes installed with it. You have installed Energia.
Remember characters are simply 8 bit binary numbers that are interpreted as characters using the mapping defined in the ASCII table. The serial terminal by default assumes that the received binary values are to be interpreted as ASCII characters.
Figure 2 Timer A block diagram. You can set the upper count value and get the timer to assert an interrupt when the maximum count is reached.
Notify me of new posts via email. To find out more, including how to control cookies, see here: A PWM signal is a pulsed signal with a period that is chosen to be much faster tun the response time of the device of system that you want to drive.
Figure 1 20 pin device pin functionality. Leave a Reply Cancel reply Enter your comment here By continuing to use this website, you agree to their use.
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