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.
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)