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This version (09 Dec 2022 10:37) was approved by Gireesha Nirvanaiah.The Previously approved version (09 Dec 2022 07:35) is available.Diff

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AD2435 with SOM carrier ez-kit

Evaluation boards

The AD243x high power evaluation boards used in the demos are explained in the following subsections.

ADZS2435-MINI

Figure 28 shows a ADZS2435-MINI board which can be used as a high power A2B master. The board has following peripherals

  • AD2435 A2B transceiver
  • 512K Self-Boot Memory (EEPROM)

Figure 28: ADZS2435-MINI

Hardware modifications

The following hardware modifications are required:-

  • For all ADZS2435-MINI boards, remove R70, R71, R85, R39.
  • For all ADZS2435-MINI boards, add R40.
  • For all ADZS2435-MINI boards, add R40.
  • For the board with I2C address 0x6A, remove R43 and add R42.

Jumper settings

The jumpers on the board must be in the following positions

  • P5 – connect 2 & 3
  • P6 – No connection
  • P10 – No connection

EVAL-AD2435WJ3LZ

Figure 29 shows EVAL-AD2435WJ3LZ board which can be used as a high power bus powered A2B slave node. The board has following peripherals

  • AD2435 A2B transceiver
  • Stereo Audio Codec (ADAU1961) with Line I/O
  • Onboard Class D (FDA802S) Amplifier
  • 4 Microphones
  • Onboard RGB LED

Figure 29: EVAL-AD2435WJ3LZ board Connections

Jumper settings

The following jumper settings are required:-

  • JP1 – No connection
  • JP2 – 5-6, 7-8, 19-20, 21-22, 23-24
  • JP3 – 1-2
  • JP5 – 2-3

EV-21569-SOM Rev B

Figure 30 shows EV-21569-SOM evaluation board which should be used with EV-SOMCRR-EZKIT. This pair will be used an audio host to the ADZS2435-MINI. It consists of the following peripherals.

  • 8 Gb DDR3 (1.35V) Memory
  • 512Mb SPI Flash Quad Memory
  • FTDI USB-to-UART

Figure 30: EV-21569-SOM Rev B (Top view)

EV-SC594-SOM Rev B

Figure 31 shows EV-SC594-SOM evaluation board which should be used with EV-SOMCRR-EZKIT. This pair will be used an audio host to the ADZS2435-MINI. It consists of the following peripherals.

  • 8 Gb DDR3 (800 MHz) Memory
  • 512 Mb Quad SPI Flash Memory
  • 256 Mb Octal SPI Flash Memory
  • FTDI USB-to-UART

Figure 31: EV-SC594-SOM Rev B (Top view)

EV-SOMCRR-EZKIT Rev A

Figure 32 shows the EV-SOMCRR-EZKIT which can be used with EV-21569-SOM or EV-SC594-SOM. This board along with a processor SOM board will be used as an audio host to the ADZS2435-MINI. It consists of the following peripherals.

  • ADAU1979 – Quad Analog-to-Digital Converter
  • ADAU1962A – 12 Channel, 192kHz, 24-bit DAC
  • CAN FD 2× ADM3056E
  • Macronix MX66LM1G45G 1 Gbit OSPI Flash Memory
  • Gigabit Ethernet TI DP83867
  • 10/100 Ethernet TI DP83848
  • USB 2.0 PHY Microchip USB3340
  • USB 2.0 to QSPI FTDI
  • MicroSD Card Socket
  • 2× A2B Interface Connectors

Figure 32: EV-SOMCRR-EZKIT Rev A (Top view)

Figure 33: EV-SOMCRR-EZKIT + EV-21569-SOM

Figure 34: EV-SOMCRR-EZKIT + EV-SC594-SOM

Connections

To run the sample demo, the following setup connections are to be made.

Figure 35: Multi-main connections using PC(Host) and EV-21569-SOM + EV-SOMCRR-EZKIT and ADZS-AD2435 MINI’s

Figure 36: Multi-main connections for audio stream from SOM carrier to sub-node line-out using EV-SC594-SOM + EV-SOMCRR-EZKIT (Host) and ADZS-AD2435 MINI’s

Figure 37: Multi-main connections for audio stream from subnode PDM mic to subnode line-out using SC594 SOM carrier kit (Host) and ADZS2435MINI’s

Figure 38: Multi-main connections for audio stream from subnode line-in to subnode class-D amplifier-out using SC594 SOM carrier kit (Host) and ADZS2435MINI’s

The steps described in this section are recommended to run the following configurations

  • AD2435 multi-main sample demo using ADSP-21569 platform and PC as host.
  • AD2435 multi-main sample demo using ADSP-SC594 platform as a host

The Evaluation boards shall be connected in the following order.

  1. For using both ADSP-21569 platform and PC as a host, connect the EV-21569-SOM to the EV-SOMCRR-EZKIT. For using just ADSP-SC594 platform as a host, connect the EV-SC594-SOM to the EV-SOMCRR-EZKIT
  2. Connect one of the two ADZS2435-MINI boards to J10 A2B interface of the EV-SOMCRR-EZKIT. Let this be “main node 0” with I2C address configured to be 0x68.
  3. Connect the other ADZS2435-MINI to J11 A2B interface of the EV-SOMCRR-EZKIT. Let this be “main node 1” with I2C address configured to be 0x6A.
  4. For A2B chain 0:- ADZS2435-MINI (Main node 0) → EVAL-AD2435WJ3LZ (Sub node 0) → EVAL-AD2435WJ3LZ (Sub node 1), the connections are as follows
    1. Connect twisted-pair wire between the “B” connector on the main node 0 board and the “A” connector on the sub node 0 board.
    2. Ordered List ItemConnect twisted-pair wire between the “B” connector on the sub node 0 board and the “A” connector on the sub node 1 board.
  5. For A2B chain 1:- ADZS2435-MINI (Main node 1) → EVAL-AD2435WJ3LZ (Sub node 2) → EVAL-AD2435WJ3LZ (Sub node 3), the connections are as follows
    1. Connect twisted-pair wire between the “B” connector on the main node 1 board and the “A” connector on the sub node 2 board.
    2. Connect twisted-pair wire between the “B” connector on the sub node 2 board and the “A” connector on the sub node 3 board.
  6. Connect 12V power supplies to the power connectors of EV-SOMCRR-EZKIT and both the ADZS2435-MINI boards.

Audio In/out for ADSP-21569 and PC as a host – multi-main

  • Connect an audio source (e.g., output from an iPod) to ‘Audio Line- in’ ports, shown in Figure 35 (Audio Input).
  • Connect separate audio sinks (e.g., passive speakers) to output of Class-D amplifier ports as shown in Figure 35, on sub node boards.
  • Connect separate audio sinks such as headphones to line outs as shown in the Figure 35.

Audio In/out for ADSP-SC594 as a host – multi-main

resources/tools-software/a2bv2/quickstartguide/hardware-setup/ad2435-with-som-carrier-ez-kit.txt · Last modified: 09 Dec 2022 10:36 by Gireesha Nirvanaiah