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Update README.txt #3

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Update README.txt
chrisc-xmos Sep 10, 2019
fdc86a3
Update README.txt
chrisc-xmos Sep 13, 2019
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13 changes: 6 additions & 7 deletions tests/test_xk_xvf3510/README.txt
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Expand Up @@ -8,14 +8,13 @@ The following steps must be followed:

1. Flash in an RPi Hat board the .xe file in ./test_rpi_hat_clocks/bin/

2. Add a pull-up resistor between pin 4 and pin 3 (I2C_SDA) in the DAC board
2. Ensure the following have been added to the 3510 test board (JGB0051):
a) A 10k pull-up resistor between SDA and 3V3
b) A link from MLCK to pin 7 on J5
c) A zero ohm resistor on R32
d) 4.7k Pull ups to SPI_MOSI, SPI_MISO, and SPI_CLK

3. Connect the following pins between the RPi Hat board J5 expander and the DAC board:
- 5V power: pin 2
- PI_MCLK: pin 5
- I2S_BCLK: pin 12
- I2S_LRCK: pin 35
- ground
3. Connect the RPi Hat board J5 to the DAC board with a 2x40 pin cable

4. Connect a 3.5mm audio cable between LINE OUT of the DAC board and LINE IN of the XVF3510 board

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