15 Results for "8-bit cpu"

DSP in Verilog: when it needs to be FAST
Project by Bruce Land
IIR filters, CIC filters, Direct Digital Synthesis, Karplus-Strong string synthesis, Adaptive noise cancellation, soft radio
- 849
- 38

DSP on 8-bit microcontroller
Project by Bruce Land
DSP on 8-bit MCU requires tradeoffs between accuracy and speed. Fixed point FFT, DCT, IIR filters are implmented
- 486
- 57

Low bit-rate Speech playback for AVR
Project by Bruce Land
Memory is limited on small controllers, this is 2-bit DPCM, compressed speech playback for the AVR architecture.
- 2.1k
- 22

Real-time, real-voltage neuron on 8-bit MCU
Project by Bruce Land
A two-terminal, real-time, neuron, at biological voltage scale, to teach biological instrumentation.
- 128
- 72

Cheap, Hybrid (digital, analog), noise canceller
Project by Bruce Land
Surpressing 60 Hz noise. Kyle D. Wesson, Robert M. Ochshorn, Bruce R. Land, Journal of Neuroscience Methods 185 (2009) 50–55
- 32
- 20

Earliest-deadline-first real-time for AtMega1284
Project by Bruce Land
A preemptive real-time kernel is handy for managing embedded tasks. The kernel needs to be light weight for AVR MCU.
- 351
- 28

Audio DSP on DE1-SoC
Project by Bruce Land
The Cyclone5 DE1-SoC has a nice audio codec, with support on the Intel/Altera Avalon bus. An Avalon bus master does the DSP, and runs codec
- 1.7k
- 18

Cyclone5 VGA16-bit color ARM interface.
Project by Bruce Land
The "DE1-SoC University computer" IP which ships with the DE1-SoC is 320x240 resolution. This is a conversion and simplification to 640x480.
- 16
- 11

Speech playback on PIC32, 8:1 compression
Project by Bruce Land
Spectral speech estimate is stored in flash and reconstructed as a sum of sines during playback thru SPI attached DAC.
- 25
- 23

Short, Fast, Floating Point for AVR
Project by Bruce Land
Floating point on the AVR Mega is fast in GCC , but we can go faster for limited precision DSP and games.
- 971
- 18

Physical Simulation with Cellular Automata
Project by Bruce Land
Not all simulations are ODEs! Cellular Automata (CA) use local rules and communication. CA can simulate biological and physical systems.
- 50
- 35

PIC32 DAC
Project by Tahmid
Hack the internal comparator voltage reference to use as a simple digital to analog converter (DAC)
- 31
- 3

FM-synth, two voice, Markov sequence, music box
Project by Bruce Land
A Markov sequencer, with fractal 1/f transition probabilities, is combined with a two-voice, 16-bit FM synthesizer, running on a 8-bit MCU.
- 2.5k
- 41

DE0-Nano FPGA to VGA output
Project by Bruce Land
Simple, passive, cheap DAC and Verilog VGA driver for 8-bit color VGA from the Altera/Terasic DE0-Nano
- 77
- 53

VGA graphics for ARM SoC
Project by Bruce Land
A VGA driver on the FPGA side of the SoC connects to the ARM side. 8-bit pixels were used to conserve memory on the FPGA
- 23
- 14