ZHCU032K December 2004 – August 2022 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253 , MSP430F2001 , MSP430F2002 , MSP430F2003 , MSP430F2011 , MSP430F2012 , MSP430F2013 , MSP430F2101 , MSP430F2111 , MSP430F2112 , MSP430F2121 , MSP430F2122 , MSP430F2131 , MSP430F2132 , MSP430F2132-EP , MSP430F2232 , MSP430F2234 , MSP430F2252 , MSP430F2252-Q1 , MSP430F2254 , MSP430F2272 , MSP430F2272-Q1 , MSP430F2274 , MSP430F2274-EP , MSP430F233 , MSP430F2330 , MSP430F235 , MSP430F2350 , MSP430F2370 , MSP430F2410 , MSP430F2416 , MSP430F2417 , MSP430F2418 , MSP430F2419 , MSP430F247 , MSP430F2471 , MSP430F248 , MSP430F2481 , MSP430F249 , MSP430F2491 , MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619 , MSP430G2001 , MSP430G2101 , MSP430G2102 , MSP430G2111 , MSP430G2112 , MSP430G2121 , MSP430G2131 , MSP430G2132 , MSP430G2152 , MSP430G2153 , MSP430G2201 , MSP430G2201-Q1 , MSP430G2202 , MSP430G2203 , MSP430G2210 , MSP430G2211 , MSP430G2212 , MSP430G2213 , MSP430G2221 , MSP430G2230 , MSP430G2231 , MSP430G2231-Q1 , MSP430G2232 , MSP430G2233 , MSP430G2252 , MSP430G2253 , MSP430G2302 , MSP430G2303 , MSP430G2312 , MSP430G2313 , MSP430G2332 , MSP430G2333 , MSP430G2352 , MSP430G2353 , MSP430G2402 , MSP430G2403 , MSP430G2412 , MSP430G2413 , MSP430G2432 , MSP430G2433 , MSP430G2444 , MSP430G2452 , MSP430G2453 , MSP430G2513 , MSP430G2533 , MSP430G2544 , MSP430G2553 , MSP430G2744 , MSP430G2755 , MSP430G2855 , MSP430G2955 , MSP430TCH5E
ADC10 包含一个数据传输控制器 (DTC),可自动将转换结果从 ADC10MEM 传输到其他片上存储器位置。通过将 ADC10DTC1 寄存器设置为非零值来启用 DTC。
启用 DTC 后,每次 ADC10 完成转换并将结果加载到 ADC10MEM 时,都会触发一次数据传输。在传输预定义数量的转换数据之前,无需软件干预即可管理 ADC10。每个 DTC 传输都需要一个 CPU MCLK。为避免在 DTC 传输期间发生任何总线争用,在传输所需的一个 MCLK 周期内停止 CPU(如果处于活动状态)。
在 ADC10 占用期间,不应启动一个 DTC 传输器。软件必须确保在配置 DTC 时没有正在进行的转换或序列:
; ADC10 activity test
BIC.W #ENC,&ADC10CTL0 ;
busy_test BIT.W #BUSY,&ADC10CTL1 ;
JNZ busy_test ;
MOV.W #xxx,&ADC10SA ; Safe
MOV.B #xx,&ADC10DTC1 ;
; continue setup