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electronics · 2012-07-16

Posted on July 16, 2012 at 17:09Hello everybody,I'm evaluating the STM32F207IG and I need to acquire samples from an ADC from Texas Instruments (ADS7951), which is a 12bit 1MS/s serial ADC.The ADC interface is a sort of SPI, with MISO, clock and a C...

electronics · 2012-07-20

Posted on July 20, 2012 at 18:11Here are some updates:I get a development board and tried to generate the CS signal using the timer3.Timer3 channel1 is used as output compare, I set the timer in order to count from 0 to 23 and set a compare value of...

electronics · 2012-07-18

Posted on July 18, 2012 at 16:54Unfortunately the other board is not under my control, it is bought directly by the customer and has that ADC on board. We'll see if we can find a different solution.

electronics · 2012-07-18

Posted on July 18, 2012 at 15:08Unfortunately the ADC resides on another board which should not be redesigned for backward compatibility reasons.

electronics · 2012-07-18

Posted on July 18, 2012 at 12:55350kS/s means 350k x3bytes = 1050000 irq per second, that would be a huge amount of CPU load, used only to generate the correct CS timing.I don't think the CPU would have enough power to handle this. It has to do seve...

electronics · 2012-07-17

Posted on July 17, 2012 at 18:35The main problem is see is the generation of the CS signal.From the ADS7951 datasheet, i see that I have to pull the CS signal down, transfer at least 16bits , pull the CS high and clock another few bits before restar...

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STM32 SPI/I2S and TI ADS7951 ADC

Re: STM32 SPI/I2S and TI ADS7951 ADC

Re: STM32 SPI/I2S and TI ADS7951 ADC

Re: STM32 SPI/I2S and TI ADS7951 ADC

Re: STM32 SPI/I2S and TI ADS7951 ADC

Re: STM32 SPI/I2S and TI ADS7951 ADC