//******************************************************************************
// MSP430G2x33/G2x53 Demo - ADC10, DTC Sample A1-0 16x, AVcc, Repeat Seq, DCO
//
// Description: Use DTC to sample A1/A0 repeat sequence 16x(32 total samples)
// with reference to AVcc. Software sets ADC10SC to trigger sample burst.
// In Mainloop MSP430 waits in LPM0 to save power until ADC10 conversion
// complete, ADC10_ISR will force exit from any LPMx in Mainloop on reti.
// ADC10 internal oscillator times sample period (16x) and conversion (13x).
// DTC transfers conversion code to RAM 200h - 240h. ADC10(DTC) interrupt
// will return system active. P1.0 set at start of conversion burst, reset
// on completion.
//
// MSP430G2x33/G2x53
// -----------------
// /|\| XIN|-
// | | |
// --|RST XOUT|-
// | |
// >---|P1.1/A1 |
// >---|P1.0/A0 |
//
// D. Dang
// Texas Instruments Inc.
// December 2010
// Built with CCS Version 4.2.0 and IAR Embedded Workbench Version: 5.10
//******************************************************************************
#include "msp430g2553.h"
for (;;)
{
ADC10CTL0 &= ~ENC;
while (ADC10CTL1 & BUSY); // Wait if ADC10 core is active
ADC10SA = 0x200; // Data buffer start
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion ready
__bis_SR_register(CPUOFF + GIE); // LPM0, ADC10_ISR will force exit
_NOP(); // space for debugger
_NOP(); // Set Breakpoint here to read ADC
}
}
// ADC10 interrupt service routine
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR (void)
{
__bic_SR_register_on_exit(CPUOFF); // Clear CPUOFF bit from 0(SR)
}
ADC设置成多通道多次转换后,ADC中断是在各个通道完成后中断吗?
Data Transfer Control Register0 和1 也就是ADC10DTC0 和1 控制的是什么功能,是将转换结果写入RAM吗? 数据手册中说的block是什么意思也不懂
详情回复
发表于 2012-7-2 21:56
ADC设置成多通道多次转换后,ADC中断是在各个通道完成后中断吗?
Data Transfer Control Register0 和1 也就是ADC10DTC0 和1 控制的是什么功能,是将转换结果写入RAM吗? 数据手册中说的block是什么意思也不懂,这段代码我看过,没看太懂,如果版主有时间看看我下来这些问题,只看英文数据手册没例程没人指导太蛋疼了! 谢谢版主帮助!