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MSP430F5437里有ADC10这个硬件资源吗？

yuqiong liu
Prodigy 90 points
Other Parts Discussed in Thread: MSP430F5437, MSP430F5438, MSP430F5437A

我最近刚用MSP430F5437  用的IAR  ,c语言编程；

头文件加载

#include "msp430x54x.h"

void adc10_config(void)
{
// 只有在ADC12ENC复位的情况下才可以操作
// ADC12SHT1X ADC12SHT0X ADC12MSC ADC12REF2_5V ADC12REFON ADC12ON
ADC10CTL0 &= ~ADC10ENC;

// 设置采样保持时间，最大时间周期以提高转换精度
// 注意MSP430F5438没有REF模块，片内基准无效
// 操作ADC12REF2_5V ，ADC12REFON并无意义
ADC10CTL0 = ADC10SHT0_15 + ADC10SHT1_15 + ADC10ON + ADC10MSC;
// ADC12CTL0 = ADC12SHT0_15 + ADC12SHT1_15 + ADC12ON +
// ADC12REF2_5V + ADC12REFON;
// 采样保持脉冲来自采样定时器
ADC10CTL1 = ADC10SHP + ADC10CONSEQ_2;
// 关闭内部内部温度检测以降低功耗，注意或操作否则修改转换精度
ADC10CTL2 |= ADC10TCOFF ;
// 基准电压选择AVCC，并选择11通道——(AVCC-AVSS)/2
// ADC12MCTL0 = ADC12SREF_0 + ADC12INCH_11;
ADC10MCTL0 = ADC10SREF_0 + ADC10INCH_4;

__delay_cycles(75);
// ADC12使能
ADC10CTL0 |= ADC10ENC;
ADC10CTL0 |= ADC10SC; // 启动转换

}

之前用的ADC12可以，直接把 寄存器改成ADC10   不知道为什么报错：

Error[Pe020]: identifier "ADC10MEM0" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 89
Error[Pe020]: identifier "ADC10CTL0" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 207
Error[Pe020]: identifier "ADC10ENC" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 207
Error[Pe020]: identifier "ADC10SHT0_15" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 212
Error[Pe020]: identifier "ADC10SHT1_15" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 212
Error[Pe020]: identifier "ADC10ON" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 212
Error[Pe020]: identifier "ADC10MSC" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 212
Error[Pe020]: identifier "ADC10CTL1" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 216
Error[Pe020]: identifier "ADC10SHP" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 216
Error[Pe020]: identifier "ADC10CONSEQ_2" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 216
Error[Pe020]: identifier "ADC10CTL2" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 218
Error[Pe020]: identifier "ADC10TCOFF" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 218
Error[Pe020]: identifier "ADC10MCTL0" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 221
Error[Pe020]: identifier "ADC10SREF_0" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 221
Error[Pe020]: identifier "ADC10INCH_4" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 221
Error[Pe020]: identifier "ADC10SC" is undefined E:\pro\MSP430\5437-PRO2-adc10\main.c 226
Error while running C/C++ compiler

头文件里没有对应ADC10寄存器是为什么，好奇怪，手册里有ADC10啊？

  • 0
    TI__Mastermind 26435 points

    楼主，

      你可以具体查看我们的数据手册：

    http://www.ti.com/lit/ds/symlink/msp430f5437a.pdf，

    它是支持12位ADC的。

    谢谢

  • 0 回复 Ken Wang
    Prodigy 90 points

    那我用12位时，

    好像可以选择8位 0~255,10 位0~1023,12位  0~4096的吧？

    为什么我这样设置了：ADC12CTL2  = ADC12TCOFF +  ADC12RES_0;

    ADC12MEM0 还是0~4095呢？谢谢

    没有效果呢？

    5-4 ADC12RES RW 2h ADC12_A resolution. This bit defines the conversion result resolution.
    00b = 8 bit (9 clock cycle conversion time)
    01b = 10 bit (11 clock cycle conversion time)
    10b = 12 bit (13 clock cycle conversion time)
    11b = Reserved
    3 ADC12DF RW 0h ADC12_A data read-back format. Data is always stored in the binary unsigned
    format.
    0b = Binary unsigned. Theoretically, the analog input voltage -VREF results in
    0000h, the analog input voltage +VREF results in 0FFFh.
    1b = Signed binary (2s complement), left aligned. Theoretically, the analog input
    voltage -VREF results in 8000h, the analog input voltage +VREF results in
    7FF0h.

  • 0 回复 Ken Wang
    Expert 1415 points

    Ken Wang 说：

    楼主，

      你可以具体查看我们的数据手册：

    http://www.ti.com/lit/ds/symlink/msp430f5437a.pdf，

    它是支持12位ADC的。

    谢谢

    F5437A and F5437 (none A) are not interchangeable.