ce201_readme.txt

PIC24单片机程序示例。 目前这方面的资料较少。自己先顶一下。

		Readme File for Code Example:
              CE201 - ADC Sampling at 1.1MSPS 
             ----------------------------------------

This file contains the following sections:
1. Code Example Description
2. Folder Contents
3. Suggested Development Resources
4. Reconfiguring the project for a different PIC24H device
5. Revision History


1. Code Example Description:
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In this example, ADC is set up to convert AIN0 using CH0 and CH1 sample/hold in 10-bit sequencial mode 
at 1.1MHz throughput rate. ADC clock is configured at 13.3Mhz or Tad=75ns
ADC Conversion Time for 10-bit conversion is Tc=12*Tab =  900ns (1.1MHz).

void initAdc1(void);
ADC CH0 and CH1 S/H is set-up to covert AIN0 in 10-bit mode. ADC is configured to next sample data immediately after the conversion.
So, ADC keeps convertion data throgh CH0/CH1 S/H alternatively. Effective conversion rate is 1.1Mhz

void initDma0(void);
DMA channel 0 is confiured in ping-pong mode to move the converted data from ADC to DMA RAM on every sample/convert sequence. 
It generates interrupt after every 16 sample transfer. 

void __attribute__((__interrupt__)) _DMA0Interrupt(void);
DMA interrupt service routine, moves the data from DMA buffer to ADC signal buffer and collects 256 samples.


2. Folder Contents:
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This folder contains the following sub-folders:
a. C:\Program Files\Microchip\MPLAB C30\support\gld
        This folder will have the device GLD file, it is used for building the project. 
	This file was provided with the MPLAB