Hardware/MiniBioDet
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The main purpose behind this board is to have a FPGA development board specialized in data acquisition and processing, like the FPGA Rack AD/DA V1 and the HES-SO FPGA Rack Hi-Speed AD/DA (HiSADDA) but for low power application and with a small size.
Type | MiniBioDet | Documentation | Description |
---|---|---|---|
V1.0 | Full documentation |
MiniBioDet mother board |
The MiniBioDet is composed of two board : the mother-board and a mezzanine. the mezzanine contains the analog front-end as well as the application specific connectors.
Core features
- Acquisition
- 2x A/D 16bits 20/40/65/80 MSPS (Analog Devices AD9266)
- 1x D/A 14bits 175 MSPS (Analog Devices AD9707)
- FPGA
- 1x IGLOO2 FPGA (Microsemi M2GL050)
- low power
- 56'340 LUTs
- 72 DSP (18x18)
- 6 PLLs/CCCs
- 1826 Kbites RAM
- 1x Low jitter Clock distributor
- 1x SSRAM 36Mbit (Cypress CY7C1460AV25-167AXC)
- 4x user LEDs
- 1x IGLOO2 FPGA (Microsemi M2GL050)
- Interface
- 1x Bluetooth LE uC Soc (Nordic NRF51822)
- 1x FTDI (ft230xs)
- 1x micro SDCard
- 1x FLASH SPI 512 Mbit (Spansion S25FL512S)
- 2x user LEDs
- 4x user Push-buttons
- Power
- 1x LiPo battery charge manager with power-path
- 4x DC/DC power suply
- 2x LDO power suply
- 3x battery status LEDs
- Connectors
- 1x micro USB ( for power and serial port)
- 1x micro SDCard socket
- 2x MMCX for differential external Clock Input
- 1x MMCX for FPGA acquisition synchronization
- 1x battery LiPo connector
- 1x JTAG for the NRF51 SoC
- 1x JTAG for the IGLOO FPGA
- 1x mezzanine connector
Power supply considerations
This board is powered through the USB 5V or with a 3.7V LiPo battery. When a USB port is connected, the battery management circuit directly supplies the card and start charging the battery. The charge status is indicated with three LEDs.
LED name | LED color | Description |
---|---|---|
low batt | red | battery level is low |
done | green | battery charging is done |
power | blue | USB power is present |
Bloc diagram
Known issues
tracks of the antenna too thin. 5V on the NRF through the battery charger led. => not possible to read the charger status.
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