官方16位ADC转换用的是什么引脚 ch2通道？

只看该作者 · 2023-4-11 12:24

PORT_Init(PORTC, PIN6, PORTC_PIN6_SDADC_CH0P, 0); //PC.6 => SDADC.CH0P
PORT_Init(PORTC, PIN7, PORTC_PIN7_SDADC_CH0N, 0); //PC.7 => SDADC.CH0N
PORT_Init(PORTC, PIN4, PORTC_PIN4_SDADC_CH1P, 0); //PC.4 => SDADC.CH1P
PORT_Init(PORTC, PIN5, PORTC_PIN5_SDADC_CH1N, 0); //PC.5 => SDADC.CH1N
PORT_Init(PORTC, PIN2, PORTC_PIN2_SDADC_CH3P, 0); //PC.2 => SDADC.CH3P
PORT_Init(PORTC, PIN3, PORTC_PIN3_SDADC_CH3N, 0); //PC.3 => SDADC.CH3N
PORT_Init(PORTD, PIN0, PORTD_PIN0_SDADC_CH4P, 0); //PD.0 => SDADC.CH4P
PORT_Init(PORTD, PIN1, PORTD_PIN1_SDADC_CH4N, 0); //PD.1 => SDADC.CH4N
PORT_Init(PORTB, PIN14,PORTB_PIN14_SDADC_CH5P,0); //PB.14=> SDADC.CH5P
PORT_Init(PORTB, PIN15,PORTB_PIN15_SDADC_CH5N,0); //PB.15=> SDADC.CH5N

SDADC_initStruct.clk_src = SDADC_CLKSRC_HRC_DIV8;
SDADC_initStruct.channels = SDADC_CH2;
SDADC_initStruct.out_cali = SDADC_OUT_CALIED;
SDADC_initStruct.refp_sel = SDADC_REFP_AVDD;
SDADC_initStruct.trig_src = SDADC_TRIGSRC_SW;
SDADC_initStruct.Continue = 0; //非连续模式，即单次模式
SDADC_initStruct.EOC_IEn = 0;
SDADC_initStruct.OVF_IEn = 0;
SDADC_initStruct.HFULL_IEn = 0;
SDADC_initStruct.FULL_IEn = 0;
SDADC_Init(SDADC, &SDADC_initStruct); //配置SDADC

SDADC_Config_Set(SDADC, SDADC_CFG_A, SDADC_CFG_GAIN_1, 1, 1);
SDADC_Config_Cali(SDADC, SDADC_CFG_A, SDADC_CALI_COM_GND, 0);
SDADC_Config_Sel(SDADC, SDADC_CFG_A, SDADC_CH0 | SDADC_CH1 | SDADC_CH2);
SDADC_Config_Set(SDADC, SDADC_CFG_B, SDADC_CFG_GAIN_1, 0, 0);
SDADC_Config_Cali(SDADC, SDADC_CFG_B, SDADC_CALI_COM_GND, 0);
SDADC_Config_Sel(SDADC, SDADC_CFG_B, SDADC_CH3 | SDADC_CH4 | SDADC_CH5);

SDADC_Open(SDADC); //使能SDADC

while(1==1)
{
SDADC_Start(SDADC);
while((SDADC->STAT & SDADC_STAT_EOC_Msk) == 0);
SDADC->STAT = 1 << SDADC_STAT_EOC_Pos;

res = SDADC_Read(SDADC, &chn);
printf("%6d,", res);

for(i=0; i<800; i++); //此延时是必须的，缩短后可能导致SDADC不工作
}
}

例子中ADC转换用的是什么引脚，采样电压正端接哪个引脚，负端接哪个引脚

只看该作者 · 2023-4-11 14:59

采样电压正端接CH2P，负端接GND

只看该作者 · 2023-4-11 15:48

CH2P 是哪个引脚？我怎么找不到

只看该作者 · 2023-4-11 17:11

tang87633187 发表于 2023-4-11 15:48
CH2P 是哪个引脚？我怎么找不到

您用的是我们demo板？

只看该作者 · 2023-4-11 20:02

单端输入的话，一个接信号，一个接地。

只看该作者 · 2023-4-12 09:03

根本没有CH2通道对应的管脚

只看该作者 · 2023-4-12 09:09

tang87633187 发表于 2023-4-12 09:03
根本没有CH2通道对应的管脚

您可以换别的通道，在我司demo板上有CH2P的引脚

只看该作者 · 2023-4-12 09:38

#define PORTA_PIN0_GPIO      0
#define PORTA_PIN0_FUNMUX 1

#define PORTA_PIN1_GPIO 0
#define PORTA_PIN1_FUNMUX 1

#define PORTA_PIN2_GPIO 0
#define PORTA_PIN2_FUNMUX 1
#define PORTA_PIN2_SWCLK 3

#define PORTA_PIN3_GPIO 0
#define PORTA_PIN3_FUNMUX 1
#define PORTA_PIN3_SWDIO 3

#define PORTA_PIN4_GPIO 0
#define PORTA_PIN4_FUNMUX 1
#define PORTA_PIN4_LCD_COM0 3

#define PORTA_PIN5_GPIO 0
#define PORTA_PIN5_FUNMUX 1
#define PORTA_PIN5_CMP0N 2
#define PORTA_PIN5_LCD_COM1 3

#define PORTA_PIN6_GPIO 0
#define PORTA_PIN6_FUNMUX 1
#define PORTA_PIN6_CMP0P 2
#define PORTA_PIN6_LCD_COM2 3

#define PORTA_PIN7_GPIO 0
#define PORTA_PIN7_FUNMUX 1
#define PORTA_PIN7_LCD_COM3 3

#define PORTA_PIN8_GPIO      0
#define PORTA_PIN8_FUNMUX 1
#define PORTA_PIN8_SPI0_SSEL 2
#define PORTA_PIN8_LCD_SEG18 3

#define PORTA_PIN9_GPIO 0
#define PORTA_PIN9_FUNMUX 1
#define PORTA_PIN9_SPI0_MISO 2
#define PORTA_PIN9_LCD_SEG19 3

#define PORTA_PIN10_GPIO 0
#define PORTA_PIN10_FUNMUX 1
#define PORTA_PIN10_SPI0_MOSI 2
#define PORTA_PIN10_LCD_SEG20 3

#define PORTA_PIN11_GPIO 0
#define PORTA_PIN11_FUNMUX 1
#define PORTA_PIN11_SPI0_SCLK 2
#define PORTA_PIN11_LCD_SEG21 3

#define PORTA_PIN12_GPIO 0
#define PORTA_PIN12_FUNMUX 1
#define PORTA_PIN12_ADC_CH4 2
#define PORTA_PIN12_SPI0_SSEL 4

#define PORTA_PIN13_GPIO 0
#define PORTA_PIN13_FUNMUX 1
#define PORTA_PIN13_ADC_CH3 2
#define PORTA_PIN13_CMP2N 2
#define PORTA_PIN13_SPI0_MISO 4

#define PORTA_PIN14_GPIO 0
#define PORTA_PIN14_FUNMUX 1
#define PORTA_PIN14_ADC_CH2 2
#define PORTA_PIN14_CMP2P 2
#define PORTA_PIN14_SPI0_MOSI 4

#define PORTA_PIN15_GPIO 0
#define PORTA_PIN15_FUNMUX 1
#define PORTA_PIN15_ADC_CH1 2
#define PORTA_PIN15_SPI0_SCLK 4

#define PORTB_PIN0_GPIO      0
#define PORTB_PIN0_FUNMUX 1
#define PORTB_PIN0_LCD_SEG0 3

#define PORTB_PIN1_GPIO 0
#define PORTB_PIN1_FUNMUX 1
#define PORTB_PIN1_LCD_SEG1 3

#define PORTB_PIN2_GPIO 0
#define PORTB_PIN2_FUNMUX 1
#define PORTB_PIN2_CMP1N 2
#define PORTB_PIN2_LCD_SEG2 3

#define PORTB_PIN3_GPIO 0
#define PORTB_PIN3_FUNMUX 1
#define PORTB_PIN3_CMP1P 2
#define PORTB_PIN3_LCD_SEG3 3

#define PORTB_PIN4_GPIO 0
#define PORTB_PIN4_FUNMUX 1
#define PORTB_PIN4_LCD_SEG4 3

#define PORTB_PIN5_GPIO 0
#define PORTB_PIN5_FUNMUX 1
#define PORTB_PIN5_LCD_SEG5 3

#define PORTB_PIN6_GPIO 0
#define PORTB_PIN6_FUNMUX 1
#define PORTB_PIN6_LCD_SEG6 3

#define PORTB_PIN7_GPIO 0
#define PORTB_PIN7_FUNMUX 1
#define PORTB_PIN7_LCD_SEG7 3

#define PORTB_PIN8_GPIO      0
#define PORTB_PIN8_FUNMUX 1
#define PORTB_PIN8_LCD_SEG8 3

#define PORTB_PIN9_GPIO 0
#define PORTB_PIN9_FUNMUX 1
#define PORTB_PIN9_LCD_SEG9 3

#define PORTB_PIN10_GPIO 0
#define PORTB_PIN10_FUNMUX 1
#define PORTB_PIN10_LCD_SEG22 3

#define PORTB_PIN11_GPIO 0
#define PORTB_PIN11_FUNMUX 1
#define PORTB_PIN11_LCD_SEG23 3

#define PORTB_PIN12_GPIO 0
#define PORTB_PIN12_FUNMUX 1
#define PORTB_PIN12_LCD_SEG24 3

#define PORTB_PIN13_GPIO 0
#define PORTB_PIN13_FUNMUX 1
#define PORTB_PIN13_LCD_SEG25 3

#define PORTB_PIN14_GPIO 0
#define PORTB_PIN14_FUNMUX 1
#define PORTB_PIN14_SDADC_CH5P 2

#define PORTB_PIN15_GPIO 0
#define PORTB_PIN15_FUNMUX 1
#define PORTB_PIN15_SDADC_CH5N 2

#define PORTC_PIN0_GPIO      0
#define PORTC_PIN0_FUNMUX 1
#define PORTC_PIN0_XTAL_OUT 2

#define PORTC_PIN1_GPIO 0
#define PORTC_PIN1_FUNMUX 1
#define PORTC_PIN1_XTAL_IN 2

#define PORTC_PIN2_GPIO 0
#define PORTC_PIN2_FUNMUX 1
#define PORTC_PIN2_SDADC_CH3P 2

#define PORTC_PIN3_GPIO 0
#define PORTC_PIN3_FUNMUX 1
#define PORTC_PIN3_SDADC_CH3N 2

#define PORTC_PIN4_GPIO 0
#define PORTC_PIN4_FUNMUX 1
#define PORTC_PIN4_SDADC_CH1P 2
#define PORTC_PIN4_LCD_SEG10 3
#define PORTC_PIN4_SPI1_SSEL 4

#define PORTC_PIN5_GPIO 0
#define PORTC_PIN5_FUNMUX 1
#define PORTC_PIN5_SDADC_CH1N 2
#define PORTC_PIN5_LCD_SEG11 3
#define PORTC_PIN5_SPI1_MISO 4

#define PORTC_PIN6_GPIO 0
#define PORTC_PIN6_FUNMUX 1
#define PORTC_PIN6_SDADC_CH0P 2
#define PORTC_PIN6_ADC_CH6    2
#define PORTC_PIN6_LCD_SEG12 3
#define PORTC_PIN6_SPI1_MOSI 4

#define PORTC_PIN7_GPIO 0
#define PORTC_PIN7_FUNMUX 1
#define PORTC_PIN7_SDADC_CH0N 2
#define PORTC_PIN7_ADC_CH5 2
#define PORTC_PIN7_LCD_SEG13 3
#define PORTC_PIN7_SPI1_SCLK 4

#define PORTD_PIN0_GPIO      0
#define PORTD_PIN0_FUNMUX 1
#define PORTD_PIN0_SDADC_CH4P 2
#define PORTD_PIN0_LCD_SEG14 3

#define PORTD_PIN1_GPIO 0
#define PORTD_PIN1_FUNMUX 1
#define PORTD_PIN1_SDADC_CH4N 2
#define PORTD_PIN1_LCD_SEG15 3

#define PORTD_PIN2_GPIO 0
#define PORTD_PIN2_FUNMUX 1
#define PORTD_PIN2_LCD_SEG16 3

#define PORTD_PIN3_GPIO 0
#define PORTD_PIN3_FUNMUX 1
#define PORTD_PIN3_LCD_SEG17 3

#define PORTD_PIN4_GPIO 0
#define PORTD_PIN4_FUNMUX 1
#define PORTD_PIN4_LCD_SEG26 3

#define PORTD_PIN5_GPIO 0
#define PORTD_PIN5_FUNMUX 1
#define PORTD_PIN5_LCD_SEG27 3

#define PORTD_PIN6_GPIO 0
#define PORTD_PIN6_FUNMUX 1
#define PORTD_PIN6_LCD_SEG28 3

#define PORTD_PIN7_GPIO 0
#define PORTD_PIN7_FUNMUX 1
#define PORTD_PIN7_LCD_SEG29 3

#define PORTE_PIN0_GPIO      0
#define PORTE_PIN0_FUNMUX 1
#define PORTE_PIN0_LCD_SEG30 3

#define PORTE_PIN1_GPIO 0
#define PORTE_PIN1_FUNMUX 1
#define PORTE_PIN1_LCD_SEG31 3

#define PORTE_PIN2_GPIO 0
#define PORTE_PIN2_FUNMUX 1

#define PORTE_PIN3_GPIO 0
#define PORTE_PIN3_FUNMUX 1

#define PORTE_PIN4_GPIO 0
#define PORTE_PIN4_FUNMUX 1
#define PORTE_PIN4_ADC_CH0    2

#define PORTE_PIN5_GPIO 0
#define PORTE_PIN5_FUNMUX 1

#define PORTE_PIN6_GPIO 0
#define PORTE_PIN6_FUNMUX 1

#define PORTE_PIN7_GPIO 0
#define PORTE_PIN7_FUNMUX 1

/* 下面宏定义的取值全部在正确值的基础上“加100”，以区分上面宏定义的值，从而方便库函数的编写*/
#define FUNMUX_UART0_RXD 100
#define FUNMUX_UART0_TXD 101
#define FUNMUX_UART1_RXD 102
#define FUNMUX_UART1_TXD 103
#define FUNMUX_UART2_RXD 104
#define FUNMUX_UART2_TXD 105
#define FUNMUX_I2C0_SCL 106
#define FUNMUX_I2C0_SDA 107
#define FUNMUX_I2C1_SCL 108
#define FUNMUX_I2C1_SDA 109
#define FUNMUX_PWM0A_OUT 110
#define FUNMUX_PWM1A_OUT 111
#define FUNMUX_PWM2A_OUT 112
#define FUNMUX_PWM3A_OUT 113
#define FUNMUX_PULSE_IN 114
#define FUNMUX_PWM0B_OUT 115
#define FUNMUX_TIMR0_IN 116
#define FUNMUX_TIMR1_IN 117
#define FUNMUX_TIMR2_IN 118
#define FUNMUX_TIMR3_IN 119
#define FUNMUX_CAN_RX 120
#define FUNMUX_CAN_TX 121
#define FUNMUX_PWM1B_OUT 122
#define FUNMUX_PWM2B_OUT 123
#define FUNMUX_PWM3B_OUT 124
#define FUNMUX_PWM_BREAK 126
#define FUNMUX_UART3_RXD 127
#define FUNMUX_UART3_TXD 128
#define FUNMUX_HALL_A 129
#define FUNMUX_HALL_B 130
#define FUNMUX_HALL_C 131

SDADC_CH2P  未定义