Acoustic signal of 1 kHz frequency generated with PWM module Posted on December 2, 2015 by Farahat Leave a comment Test 5. Acoustic signal of 1 kHz frequency generated with PWM module Related posts:SUMMARY OF DIRECT MEMORY ACCESS AND DMA-CONTROLLED I/O.Using the portsARITHMETIC AND LOGIC INSTRUCTIONS:QUESTIONS AND PROBLEMS. Leave a comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ