http://forums.leaflabs.com/topic.php?id=10627 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:20:22 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=10627#post-24655 Tue, 16 Apr 2013 21:07:05 +0000 joyzhou 24655@http://forums.leaflabs.com/ <p>ventosus:<br /> Thank you very much!<br /> I am new to maple, so there is a long way. </p> http://forums.leaflabs.com/topic.php?id=10627#post-24516 Tue, 16 Apr 2013 01:50:36 +0000 ventosus 24516@http://forums.leaflabs.com/ <p>Yes you can trigger the ADC by a timer or external event, although you have to use the low-level ADC interface in limaple<br /> <a href="http://leaflabs.com/docs/libmaple/api/adc.html#libmaple-adc" rel="nofollow">http://leaflabs.com/docs/libmaple/api/adc.html#libmaple-adc</a><br /> and most probably also DMA<br /> <a href="http://leaflabs.com/docs/libmaple/api/dma.html" rel="nofollow">http://leaflabs.com/docs/libmaple/api/dma.html</a></p> <p>This would be my inital approach:<br /> 1. set-up a timer<br /> 2. define the ADC channels to be sampled (adc_set_reg_seq_len, ADC_SQR1-3)<br /> 3. define the trigger mode of the ADC (adc_set_extsel)<br /> 4. set-up DMA to transfer a given number of ADC samples to RAM and notify you by an interrupt. </p> http://forums.leaflabs.com/topic.php?id=10627#post-24515 Tue, 16 Apr 2013 01:03:37 +0000 joyzhou 24515@http://forums.leaflabs.com/ <p>Hi, guys,<br /> ADC of Maple is powerful. I am wondering if ADC can be configured to trig automatically and periodically to get sample data of sounds.</p> <p>Could anyone kindly give me some hints?</p> <p>Regards and Thanks! </p>