Abl-electronic PIC Microcontrollers PIC16 Manuel d'utilisateur Page 147
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
ADC (Analog to Digital Converter) module is available with a number of PIC
MCU models. Library function Adc_Read is included to provide you comfortable
work with the module.
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ADC Library
Prototype
unsigned Adc_Read(char channel);
Returns 10-bit unsigned value read from the specified ADC channel.
Description Initializes PIC’s internal ADC module to work with RC clock. Clock determines the
time period necessary for performing AD conversion (min 12TAD).
Parameter
channel represents the channel from which the analog value is to be
acquired. For channel-to-pin mapping please refer to documentation for the appropriate
PIC MCU.
Requires PIC MCU with built-in ADC module. You should consult the Datasheet documentation
for specific device (most devices from PIC16/18 families have it).
Before using the function, be sure to configure the appropriate TRISA bits to designate
the pins as input. Also, configure the desired pin as analog input, and set Vref (voltage
reference value).
The function is currently unsupported by the following PICmicros: P18F2331,
P18F2431, P18F4331, and P18F4431.
Example
unsigned tmp;
...
tmp = Adc_Read(1);
/* read analog value from channel 1 */
Adc_Read
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- RTL8019AS 193
- Flash Memory Library 194
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- 0 0 0 0 0 0 227
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- RS-485 Library 251
- RS485Master_Init 252
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- Connecting PC and PIC via 256
- RS485 communication line 256
- Secure Digital Library 257
- Sd_Read_Sector 258
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- Software I2C Library 262
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- Software SPI Library 266
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- Software UART Library 269
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- Sound Library 272
- SPI Library 274
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- 8. 8. 8. 8. 8. 8. 8. 8 278
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- USB HID Library 283
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- PIC18F4550 287
- Util Library 288
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- ShortToStr 308
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- Dec2Bcd16 310
- Bcd2Dec16 310
- Trigonometry Library 311
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