Microchip PIC32MK0512MCM064 Bedienungsanleitung

Microchip Nicht kategorisiert PIC32MK0512MCM064

Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für Microchip PIC32MK0512MCM064 (62 Seiten) in der Kategorie Nicht kategorisiert. Dieser Bedienungsanleitung war für 23 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet

Seite 1/62
AN2785
World's Fastest Embedded Interleaved 12-bit ADC Using
PIC32MZ and PIC32MK Families
Interleaved ADC Performance Graph
Figure 1. 
© 2018 Microchip Technology Inc. DS00002785A-page 1
Table of Contents
Interleaved ADC Performance Graph..............................................................................1
1. Introduction................................................................................................................3
2. PIC32MZ/MK SAR ADC Class Types....................................................................... 8
2.1. ADC Class_1 Functional description............................................................................................8
3. ADC Class_1 Triggers............................................................................................. 10
3.1. Class_1 ADC Hardware Trigger Timing Considerations.............................................................11
3.2. Class_1 Interleaved ADC Trigger Formulas............................................................................... 11
3.3. ADC Class_1 Trigger Misconceptions........................................................................................17
3.4. ADC Class_1 Triggers Key Learnings........................................................................................19
3.5. Class_1 ADC Trigger Event Behavior Questions and Answers................................................. 20
4. PIC32MKxxxx 20msps Six ADC Interleaved Code Example.................................. 24
5. PIC32MZxxxx 12.5msps Four ADC Interleaved Code Example............................. 38
6. ADC DMA Requirements.........................................................................................50
6.1. PIC32MK Family DMA Architecture........................................................................................... 50
6.2. PIC32MZ Family DMA Architecture........................................................................................... 51
7. Interleaved ADC Performance Data Analysis..........................................................52
7.1. PIC32MZ 10msps Interleaved Test Results Example................................................................ 52
The Microchip Web Site................................................................................................ 59
Customer Change Notification Service..........................................................................59
Customer Support......................................................................................................... 59
Microchip Devices Code Protection Feature................................................................. 59
Legal Notice...................................................................................................................60
Trademarks................................................................................................................... 60
Quality Management System Certified by DNV.............................................................61
Worldwide Sales and Service........................................................................................62
AN2785
© 2018 Microchip Technology Inc. DS00002785A-page 2
1. Introduction
The PIC32MZ and PIC32MK device families have an advanced Class_1 12-bit ADC with features that
enable them to be interleaved such that the composite ADC through-put rate can far exceed any
individual ADC through-put rate. This is possible because each family has anywhere from 5-6 separate
Class_1 ADC’s that have independent trigger sources. By interleaving, (i.e. staggering), the trigger events
and connecting the target analog signal to multiple interleaved ADC inputs in parallel, it’s possible to
achieve the rates listed below in the respective product family tables. Complete lists of ADC selectable
high speed throughput rates are provided in Table 3-5 and Table 3-6 to assist users with proper timing
and setup. It has been assumed that the user is utilizing the recommended optimum settings.
Table 1-1. PIC32MZ Family Max ADC Throughput Rate Summary
# of Interleaved ADC
Possible
ADC TAD(1)(min) = 20 ns (50 Mhz max spec as of 7/1/18)
12-bit (max) msps 10-bit (max) msps 8-bit (max) msps 6-bit (max) msps
13.125 msps 3.57143 msps 4.16667 msps 5.00 msps
26.25 msps 7.14286 msps 8.33333 msps 10.00 msps
38.333333 msps 10.00 msps 12.50 msps 12.50 msps
412.50 msps 14.28571 msps 16.66667 msps 20.00 msps
Table 1-2. PIC32MZ Settings Assumptions
SYSCLK 200 Mhz ( 5 ns)
ADC / Timer3 PB3DIV<PBDIV> 2:1 ratio
ADCCON3<CONCLKDIV> SYSCLK/2
ADCxTIME<ADCDIV> (ADC TAD CLOCK) 50 Mhz (20 ns) (1)
ADCxTIME<SAMC> 3 TAD
VDD=AVDD > 2.5v
CFGCON< IOANCPEN> & ADCCON1<AICPMPEN> 0
Note:  x = Respective interleaved ADC(s) utilized.
AN2785
Introduction
© 2018 Microchip Technology Inc. DS00002785A-page 3

Produktspezifikationen

Marke: Microchip
Kategorie: Nicht kategorisiert
Modell: PIC32MK0512MCM064

Brauchst du Hilfe?

Wenn Sie Hilfe mit Microchip PIC32MK0512MCM064 benötigen, stellen Sie unten eine Frage und andere Benutzer werden Ihnen antworten




Bedienungsanleitung Nicht kategorisiert Microchip

Bedienungsanleitung Nicht kategorisiert

Neueste Bedienungsanleitung für -Kategorien-