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Low-Cost Speech With MSP430™ MCUs - TI
https://www.ti.com/lit/pdf/slaa405
Low-Cost Speech With MSP430™ MCUs 3 Audio Playback For audio playback, a digital-to-analog conversion is necessary. An alternative to using the MSP430's ... to filter this frequency, a simple lowpass filter can be implemented, allowing 0 Hz to 4 kHz to pass and suppressing 32 kHz. In addition, 32 kHz is a quadruple of 8 kHz, which makes data ...
Digital filtering methodoliges for MSP430 systems …
https://www.ti.com/en/download/mcu/Digital-filtering-methodoliges-for-MSP430-systems.pdf
Digital Filtering Methodologies for MSP430 Systems Kripasagar Venkat, MSP430 Applications 2 Agenda • Representation of signals in time and frequency • Classification of Filters • Fast and efficient algorithms • Validation of filter performance • Hands-on filter labs using the MSP430
Designing an audio playback application with the …
https://e2e.ti.com/blogs_/b/process/posts/designing-an-audio-playback-application-with-the-msp430-smart-analog-combo
Audio files are usually recorded and played at 22.05 kHz or 44.1 kHz. Figure 3: Audio application using the MSP430 Smart Analog Combo. The main format used on Microsoft Windows systems for raw and typically uncompressed audio bit stream storage is …
PWM Audio with the MSP430 - MSP low-power microcontroller ...
https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/254519/pwm-audio-with-the-msp430
Remember that the speaker is inductive and you are also likely to get a spike back into the MSP430 which may not be very nice to the port pin transistors. Remember, using PWM, you are basically charging/discharging the capacitor on the filter in the ratio of the pulse width to pulse frequency. This is why the filter is necessary.
Solid State Voice Recorder Using Flash MSP430
https://www.egr.msu.edu/classes/ece480/capstone/spring10/group01/Stuff/ECE%20480/slaa123.pdf
4 Solid State Voice Recorder Using Flash MSP430 Figure 3. Serial DAC and Filter Figure 3 shows the serial DAC and the output filter circuit. The TI data converter device TLV5616 DAC used in this application features 3-V operation with less than 0.5 LSB DNL. Reference [4] is the datasheet for this device. The DAC interfaces with the integrated ...
MSP430 SD CARD AUDIO APPLICATION Schematic Circuit Diagram
https://circuit-diagramz.com/msp430-sd-card-audio-application-schematic-circuit-diagram/
MSP430 SD CARD AUDIO APPLICATION Schematic Circuit Diagram. MSP430F2012 from the MSP4430 series used in the application ( instead of MSP430F2013 ) processing the audio file via sd card MSP430 PWM, SPI signal processing, filter etc. A good example of the 5-page narration of the circuit board eagle pcb, schema drawings and IAR …
Digital FIR Filter Design Using the MSP430F16x
http://www.ece.uah.edu/~jovanov/msp430/app_notes/slaa228.pdf
MSP430 by a folded address structure approach using DMA channels 1 and 2. Figure 1 represents the block diagram of the FIR filter implementation in the MSP430F169. Figure 1. FIR Implementation Using the MSP430F169 The FIR filter software for the MSP430F169 is written in assembly language to achieve maximum performance.
Fixed point filter implementation - UAH - Engineering
http://www.ece.uah.edu/~jovanov/CPE495/notes/msp430_filter.pdf
Y = FILTER(B,A,X) filters the data in vector X with the filter described by vectors A and B to create the filtered data Y. The filter is a "Direct Form II Transposed" implementation of the standard difference equation: ... Microsoft PowerPoint - msp430_filter.ppt Author: jovanov
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