tom dunigan

Public Repositories (30)

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  • Mbed 2 deprecated
    leo_adcdma

    F446RE ADC with DMA hack (need pin to ADC channel) 1000 samples, for loop adc.read_u16() rate is 2.2us/sample for DMA block read, rate is 0.34us/sample

    Last updated: 13 Nov 2015 1 121
  • Mbed 2 deprecated
    leo_dacdma

    F446RE DAC with DMA sine wave timed by TIM6. options to test DAC sawtooth and noise wavefroms

    Last updated: 12 Nov 2015 1 26
  • Mbed 2 deprecated
    leo_spiperf

    DMA SPI achieves wire speed, 44.3 mbs for block transfers Proof-of-concept

    Last updated: 10 Nov 2015 1 84
  • Mbed 2 deprecated
    k64f_spiperf

    k64f fast SPI using SDfat SPI FIFO logic from teensy 3.1 SDfat lib. with SPI clock at 30mhz, standard SPI yields 3.7 mbs, fast SPI 27.3mbs https://github.com/manitou48/DUEZoo/blob/master/SPIperf.txt

    Last updated: 05 Nov 2015 1 31
  • Mbed 2 deprecated
    k64f_rtcisr

    measure RTC crystal freqeuncy against MCU crystal

    Last updated: 27 Oct 2015 1 16
  • Mbed 2 deprecated
    teensy_dma_dac

    use Teensy 3.1 DMA to send sine wave to DAC, timed by PDB

    Last updated: 05 Oct 2015 1 45
  • Mbed 2 deprecated
    teensy_dma_memcpy

    Teensy 3.1 DMA memcpy() 1092mbs 16-byte aligned DMA

    Last updated: 03 Oct 2015 1 10
  • Mbed 2 deprecated
    teensy_rng

    teensy 3.1 random bits from dueling clock entropy using LPTMR and systick

    Last updated: 03 Oct 2015 1 5
  • Mbed 2 deprecated
    teensy_adc

    demonstrate teensy 3.1 ADC internal channels: temperature sensor and VREF output

    Last updated: 02 Oct 2015 3 4
  • Mbed 2 deprecated
    rng

    proof-of-concept: generate random bits on LPC1768 using dueling clocks (systick and WDT/RTC)

    Last updated: 25 Jul 2015 1 29