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Some proof-of-concept sketches and results for Arduino DUE

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DUE Zoo


https://github.com/manitou48/DUEZoo

Collection of various DUE sketches and results.

Files Description
blinksize.txt Flash and SRAM used for blink sketch
chiptemp.ino read DUE internal analog temperature sensor
dacdmatmr DAC DMA clocked by timer
dmaspi.ino unconnected SPI test at varous MHz and with DMA
spislave.ino simple SPI slave example
mem2mem.ino memcpy vs DMA memory-to-memory
mem2mem2.ino memcpy dueling DMA memory-to-memory with IRQ
power.txt board current draw with board LED off and on, AVR low power
tone1.ino proof-of-concept tone() with timer with IRQ
rng.ino display or transmit DUE's hardware random number generator, looks good with diehard, ent, assess
maplerng.pde maple LSI timer/systick random number generator
RNGperf.txt RNG performance, DUE, teensy, UNO, Raspberry PI, maple
W5100.cpp .h modifications to support w5200 wiznet chip on DUE replace in hardware/arduino/sam/libraries/Ethernet/utility/ also Ethernet.h has a simple modification
w5100.cpp.dma1 SPI+DMA DUE version for w5200
perf.txt simple computational benchmarks, coremark, linpack
I2Cperf.txt I2C performance 100KHz and 400KHz
SDperf.txt SD/SPI performance at various clock rates and with DMA
SPIperf.txt SPI performance at various clock rates and with DMA
mem2mem.txt timing results for memcpy()/memset() and DMA versions
wizperf.txt Ethernet performance of wiznet WIZ820io that uses W5200 chip SPI and SPI+DMA results for DUE, teensy 3, and maple plus UNO W5100 performance for UNO
netpower/ WiFi/Ethernet power consumption graphs
IRtest/ DUE IRremote proof of concept
isrperf.txt interrupt latency results for DUE, maple, teensy
isrperf.ino DUE sketch to measure interrupt latency
cc3000.txt wifi performance of TI CC3000 chip
dac.txt DAC settle time and source current
---------------------- details --------------------

Changing the DUE's I2C clock rate TWI_CLOCK in 
   arduino-1.5/hardware/arduino/sam/libraries/Wire/Wire.h 
requires restarting the IDE.  TWI speed for teensy 3.0 in Wire.ccp,
must restart IDE.

coremark more plots at http://manitou48.github.io/

Results and sketches of testing various crystals, resonators, RC oscillators, and TCXOs with various MCUs ( UNO, DUE, maple, teensy 3.0, propeller, beagle, raspberry pi) see https://github.com/manitou48/crystals

“One accurate measurement is worth a thousand expert opinions”
-- Adm Grace Hopper ( Dec 9 1906 to Jan 1 1992)

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Some proof-of-concept sketches and results for Arduino DUE

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