APOSTILA DE MICROPROCESSADORES PDF

Português; |; 1 Document; |; Views. Apostila de Microprocessadores e Microcontroladores – argeek · Apostila de. Apostila de Sistema de Computação Digital. Prof. Walteno .. Dessa forma, os microprocessadores têm conduzido a evolução tecnológica da computação, pois . Apostila Codigo de Resistores e Capacitores Apostila de MicroProcessadores I – Microprocessadores e Microcontroladores –

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MICROPROCESSADORES

Undefined data is the mere allocation of data space, while not assigning values into the bytes of EEPROM to be done at run-time, instead.

This is handy for having a single declaration which gets accessed throughout your program. Here are all the variable modifiers: Keep in mind that you may make alias names for the pin variables: Here is an example DATA statement: The pin may be filtered by an RC circuit to achieve a clean sine-waves.

It is advanced by 1 for each byte declared. Approximately 50ua average current will be consumed.

Duty is an 8-bit value which specifies the duty-cycle. A digital-analog converter can be made by connecting the pin to a resistor which goes to a cap which goes to VSS.

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The resistor-cap junction will reflect the duty V during and after PWM. The x values for NAP are as follows: Alt-M lets you see the result of this process. Enviado por caetano flag Denunciar.

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PWM pin,duty,cycles Pin will be temporarily made an output while it is modulated. Milliseconds specifies how long to output the frequency s.

MICROPROCESSADORES

The sum of program and data memory cannot exceed the 2K byte limit. END is terminated only by a hardware reset. When done, pin will be placed in input mode to allow the voltage to remain until another PWM is executed.

Enviado por caetano flag Denunciar. Defined and undefined data are declared as follows: Your data, on the other hand, builds from the start of memory towards the end.

The default on and off times are ms and 50ms. Use Alt-M to see this.

This allocation is automatic. Freq2 is optional and specifies a second frequency. The CON syntax is as follows: This allows you to change programs while keeping data, assuming both programs defined the same stretch of memory as undefined DATA. Initially, the DATA location mictoprocessadores set to 0.

STOP Execution is frozen, but low-power mode is microproceszadores entered. The text following ‘DATA’ is usually a list of bytes which can be constant expressions. Reset will end STOP. High-Z speakers may be driven with a coupling cap and a filter cap. For example, to convert a potentiometer setting to a number: Defined data is fully declared and known at compile time. The symbol name will be assigned a constant value as if via CON which is the current data pointer. In the above example assuming this was the first DATA statement in the program”table” becomes a constant symbol of value 0; “Here is a string The result will be written into variable.

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Alt-M is a quick way to assess how much RAM you’ve used. Adjusting the pot causes the returned value to go up or down. DATA statements are used to build data into unused memory. Non-unique variables are in-whole or in-part derived from unique variables and get assigned within the unique-variable memory. The compiler will always tell you when you have a conflict. NAP x Enter low-power mode for a short period. Freq1 specifies the microprocesdadores frequency in 1Hz units Hz.

RCTIME pin,state,variable Pin will be placed in input mode and time will be ve in 2us units while pin is in ‘state’. The pin may be filtered by an RC circuit to achieve a clean sine-wave s. It may be necessary to place a series resistor to the pot to prevent a short from the high pin to VSS. The VAR usage options are as follows: For defining unique variables: