I have tryed almost everything (almost, cause I missed get it working), but my chip is laughting at me and will not show the ADC result on a display. I have read RM0008 Reference Manual many times. I have tryed to see examples from Libstock and results from ST Cube, but still cannot guess what it is I am missing.
I wish to run ADC 1 channel 0 alone as a single channel continious run, with interrupt support. But I am lost now.
Any clus any one ?+?
Sincerely
Klavs
Code: Select all
#include "ddb_mkii_global.h"
#include "ddb_mkii_local.h"
void Initiate_IO(void)
{
RCC_CR = 0x01010000;
do
{
}
while (!RCC_CR.B17);
RCC_CFGR = 0x001D8402;
do
{
}
while (!RCC_CR.B25);
RCC_AHBENR = 0x00000017;
RCC_APB1ENR = 0x10000005;
RCC_APB2ENR = 0x00000FFD;
ADC1_SR = 0x00000000;
ADC1_CR1 = 0x00000020;
ADC1_CR2 = 0x000E7003;
ADC1_SMPR1 = 0x00000000;
ADC1_SMPR2 = 0x00000000;
ADC1_HTR = 0x00000C00;
ADC1_LTR = 0x00000008;
ADC1_SQR1 = 0x00000000;
ADC1_SQR2 = 0x00000000;
ADC1_SQR3 = 0x00000000;
AFIO_MAPR = 0x02000000;
AFIO_EXTICR1 = 0x00000000;
AFIO_EXTICR2 = 0x00000000;
AFIO_EXTICR3 = 0x00000000;
AFIO_EXTICR4 = 0x00000000;
EXTI_IMR = 0x000001F8;
EXTI_EMR = 0x00000000;
EXTI_RTSR = 0x000001F8;
EXTI_FTSR = 0x000001F8;
GPIOA_CRL = 0x88888800;
GPIOA_CRH = 0x88888888;
GPIOA_ODR = 0x00000180;
GPIOB_CRL = 0x11144111;
GPIOB_CRH = 0x11114411;
GPIOC_CRL = 0x44004422;
GPIOC_CRH = 0x11411444;
NVIC_IntEnable(IVT_INT_RCC);
NVIC_IntEnable(IVT_INT_EXTI3);
NVIC_IntEnable(IVT_INT_EXTI4);
NVIC_IntEnable(IVT_INT_EXTI9_5);
NVIC_IntEnable(IVT_INT_ADC1_2);
}
void Extern_Interrupt_3(void) iv IVT_INT_EXTI3
{
if((EXTI_PR & 0x00000008) != 0)
{
if (GPIOA_IDR.B3 == 1)
{
End = 1;
Select = 1;
}
if ((GPIOA_IDR.B3 == 0) && (GPIOA_IDR.B4 == 0) &&
(GPIOA_IDR.B5 == 0) && (GPIOA_IDR.B6 == 0))
{
End = 1;
Select = 2;
}
EXTI_PR |= 0x00000008;
}
}
void Extern_Interrupt_4(void) iv IVT_INT_EXTI4
{
if((EXTI_PR & 0x00000010) != 0)
{
if (GPIOA_IDR.B4 == 1)
{
End = 1;
Select = 4;
}
if ((GPIOA_IDR.B3 == 0) && (GPIOA_IDR.B4 == 0) &&
(GPIOA_IDR.B5 == 0) && (GPIOA_IDR.B6 == 0))
{
End = 1;
Select = 2;
}
EXTI_PR |= 0x00000010;
}
}
void Extern_Interrupt_9_5(void) iv IVT_INT_EXTI9_5
{
if((EXTI_PR & 0x00000020) != 0)
{
if (GPIOA_IDR.B5 == 1)
{
End = 1;
Select = 6;
}
EXTI_PR |= 0x00000020;
}
if((EXTI_PR & 0x00000040) != 0)
{
if (GPIOA_IDR.B6 == 1)
{
End = 1;
Select = 3;
}
EXTI_PR |= 0x00000040;
}
if ((GPIOA_IDR.B3 == 0) && (GPIOA_IDR.B4 == 0) &&
(GPIOA_IDR.B5 == 0) && (GPIOA_IDR.B6 == 0))
{
End = 1;
Select = 2;
}
}
void ADC_Interrupt(void) iv IVT_INT_ADC1_2
{
Bar_Read = ADC1_DR & 0x0FFF;
ADC_DONE = 1;
}
//Timer2 Prescaler :119; Preload = 59999; Actual Interrupt Time = 100 ms
//Place/Copy this part in declaration section
void Initiate_Timer2(void)
{
TIM2_CR1 = 0x0080;
TIM2_PSC = 7200;
TIM2_ARR = 999;
NVIC_IntEnable(IVT_INT_TIM2);
TIM2_DIER = 0x0001;
TIM2_SR.UIF = 0;
}
void Timer2_interrupt(void) iv IVT_INT_TIM2
{
if(Venting_Clock)
Venting_Clock--;
else
TIM2_CR1.CEN = 0;
TIM2_SR.UIF = 0;
}
//Timer6 Prescaler : 10; Preload = 7199; Actual Interrupt Time = 1ms
//Place/Copy this part in declaration section
void Initiate_Timer4(void)
{
TIM4_CR1 = 0x0080;
TIM4_PSC = 10;
TIM4_ARR = 7199;
NVIC_IntEnable(IVT_INT_TIM4);
TIM4_DIER = 0x0001;
TIM4_SR.UIF = 0;
}
void Timer4_interrupt(void) iv IVT_INT_TIM4
{
if (Digit == 0)
{
Bar_Temp = (unsigned int)((Bar_Read * Scale));
Bar_Read_Digit[3] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[2] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[1] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[0] = Bar_Temp % 10;
if (Locked == 0)
{
Locked_Pressure = Bar_Read;
Bar_Read_Digit[4] = Bar_Read_Digit[0];
Bar_Read_Digit[5] = Bar_Read_Digit[1];
Bar_Read_Digit[6] = Bar_Read_Digit[2];
Bar_Read_Digit[7] = Bar_Read_Digit[3];
}
else
{
Bar_Temp = Locked_Pressure;
Bar_Read_Digit[7] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[6] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[5] = Bar_Temp % 10;
Bar_Temp = (unsigned int)(Bar_Temp / 10);
Bar_Read_Digit[4] = Bar_Temp % 10;
}
}
GPIOB_BSRR = 0xF3FF0000;
GPIOC_BSRR = 0xF8000000;
GPIOB_BSRR = Display_Digit[Digit][0];
GPIOC_BSRR = Display_Digit[Digit][1];
GPIOB_BSRR = Display_Number[Bar_Read_Digit[Digit]][0];
GPIOC_BSRR = Display_Number[Bar_Read_Digit[Digit]][1];
Digit++;
if (Digit == 8) Digit = 0;
TIM4_SR.UIF = 0;
}
void Introduce(void)
{
unsigned short Ciffer = 0;
Venting_Clock = 50;
TIM2_CR1.CEN = 1;
do
{
GPIOB_BSRR = 0xF3FF0000;
GPIOC_BSRR = 0xF8000000;
GPIOB_BSRR = Display_Intro[Ciffer][0];
GPIOC_BSRR = Display_Intro[Ciffer][1];
Ciffer++;
if (Ciffer == 8) Ciffer = 0;
Delay_ms(2);
}
while (Venting_Clock);
GPIOB_BSRR = 0xF3FF0000;
GPIOC_BSRR = 0xF8000000;
}
void main(void)
{
Initiate_IO();
Initiate_Timer2();
Initiate_Timer4();
EnableInterrupts();
Introduce();
ADC1_CR2.B0 = 1;
Delay_ms(1);
ADC1_CR2.B0 = 1;
TIM4_CR1.CEN = 1;
do
{
switch (Select)
{
case 1 : Prefill();
break;
case 2 : Opening();
break;
case 3 : Leak();
break;
case 4 : Venting();
break;
case 5 : Seal();
break;
case 6 : Atomise();
break;
default : Prefill();
}
}
while (1);
}
.