Posted on June 11, 2013 at 02:12
Running the following two ADC3 inputs, channels 11 and 12 (PC1, light sensor and PC2 potentiometer) on STM32F4Discovery, problem is that when I vary the PC2 input, the reading pertaining to PC1 also varyies a bit....
Posted on May 13, 2013 at 00:12I am successfully using I2C control and I2S to send data to the CS43L22 and producing simple sawtooth--> musical notes(see http://www.mind-dump.net/configuring-the-stm32f4-discovery-for-audio#comment-1344). When I try ...
Posted on November 11, 2012 at 18:12Is there an inherent reason why activating EXTI0 using PA0 would interfere with a previously functioning I2C1 transmission operation? (Atollic TrueStudion Lite) That is, I tried to add ext interrupt from previous...
Posted on June 12, 2013 at 05:25From datasheet it seems ADC running 30MHz. Input Z for ADC 6k and the Cap is 4pF. My input circuits add .5 kohm on PC1 and 2.5 kohm on PC2(the culprit). Thus, the offending circuit input has a longer RC than the victi...
Posted on June 11, 2013 at 04:44Thanks, guys. Following Clive's comments, I changed sample time to 144 cycles and all is now fine, but another day when I pick this up again I'll dig in my box for a dual uA-741 and try the buffer. I have read also a...
