参数资料
| 型号： | DM163012 |
| 厂商： | Microchip Technology |
| 文件页数： | 21/44页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO PICDEM FOR 16C781/782 |
| 标准包装： | 1 |
| 相关产品： | PIC16C781-I/P-ND - IC MCU OTP 1KX14 W/AD COMP 20DIP PIC16C782-I/P-ND - IC MCU CMOS 8BIT 2K 20MHZ 20-DIP PIC16C781/JW-ND - IC MCU OTP 1KX14 W/AD COMP20CDIP PIC16C782/JW-ND - IC MCU EPROM 2KX14 COMP 20CDIP |
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Basic Functions
ARBITRARY WAVEFORM
The DAC Arbitrary Waveform function is a utility that provides for sending a
set of user-defined data bytes to the DAC one byte at a time, with a user-
defined dwell time between each byte. The data set must consist of 2 to 80
bytes. The dwell time is determined by waiting a user-defined number of
timer0 count intervals. The utility computes dwell time as a function of :
? Timer0 clock
? Timer0 prescale
? Number of points in the waveform
? User-defined waveform period or frequency parameter.
Timer0 counts must be between 2 and 255. Adjust the paramaters to ensure
the count is within these limits.
The period of the waveform is defined as the time required for all the wave-
form points to be output.
Two types of waveforms can be computed by the utility:
1. A sine wave (see Figure 2.10)
2. A triangle wave (see Figure 2.11)
An unlimited number of other waveforms can be generated external to the util-
ity and saved as a text file, which the utility can retrieve. Each point of the
waveform is represented as an integer between 0 and 255. The set of points
is saved as a text file with one integer per line. If the waveform file contains
more than 80 integers, the Arbitrary Waveform utility accepts only the first 80.
The DAC data is displayed in the preview window when the waveform is gen-
erated or loaded from a file. Two waveform periods are displayed, so that
unexpected discontinuities between the last and first data bytes can be identi-
fied. The preview window displays the waveform in an unsmoothed format
that represents the expected DAC output.
Figures 2.10 and 2.11 show examples of utility generated sine and triangle
waveforms respectively.
? 2001 Microchip Technology Inc.
DS41178A-page 17
相关PDF资料 |
PDF描述 |
|---|---|
| DM163024 | BOARD DEMO PICDEM.NET 2 |
| DM163025 | PIC DEM FULL SPEED USB DEMO BRD |
| DM163028 | BOARD DEMO PICDEM LCD |
| DM163029 | BOARD PICDEM FOR MECHATRONICS |
| DM164130-3 | BOARD DEMO FOR PIC16F/PIC18F |
相关代理商/技术参数 |
参数描述 |
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| DM163014 | 功能描述:开发板和工具包 - PIC / DSPIC PICDEM 4 RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM163015 | 功能描述:开发板和工具包 - PIC / DSPIC PICDEM CAN-LIN 3 RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM163022 | 功能描述:开发板和工具包 - PIC / DSPIC PICDEM 2 Plus RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM163022 | 制造商:Microchip Technology Inc 功能描述:Tools Development kit Interface Type:RS |
| DM163022-1 | 功能描述:开发板和工具包 - PIC / DSPIC PICDEM 2 Plus RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
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