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Problem with ADC from STM32F207

Question asked by corado on May 25, 2015
Latest reply on May 26, 2015 by baird.hal.001
Hallo,
I try to read the ADC but get allways 0 als result :-(
Does anybody have an Idea whats wrong?
GPIO_Clk_Enable(@GPIOA_BASE);
GPIO_Config(@GPIOA_BASE,_GPIO_PINMASK_All,_GPIO_CFG_MODE_ANALOG or _GPIO_CFG_PULL_NO);
ADON_bit :=1; // ADC on/off
CONT_bit :=1; // use continius measurement
ADC1_CR1  := %00000010000000000000000000000000;
ADC1_CR2  := %01000000000000000000000000000011;
ADC1_SQR1 := %00000000000000000000000000000000;
ADC1_SQR3 := %00000000000000000000000000000000;
//ADC1_SMPR1 := %0000000000000000000000000000000;
//ADC1_SMPR2 := %0000000000000000000000000000000;
SWSTART_bit := 1; //start conversion
while EOC1_bit = 1 DO nop;value := ADC1_DR;

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