diff --git a/examples/spi_dac/README.md b/examples/spi_dac/README.md index 6a6b923d161e01ccd5f760b56cead7015bf27b12..3930ef0992e20727293018e1bc3750fda4051826 100644 --- a/examples/spi_dac/README.md +++ b/examples/spi_dac/README.md @@ -47,6 +47,8 @@ Connect a PT8211 DAC as follows: * DAC pin 6 (LCH) - left channel output * DAC pin 8 (RCH) - right channel output + + Connect an oscilloscope to the left and right channel outputs and observe a sine waveform at 187Hz on the right channel output and a sawtooth wave at 47Hz on the left channel output. diff --git a/examples/spi_dac/spi_dac_schem.png b/examples/spi_dac/spi_dac_schem.png new file mode 100644 index 0000000000000000000000000000000000000000..ef399d3786a7d22fe61571fe6de4a04ced98796e Binary files /dev/null and b/examples/spi_dac/spi_dac_schem.png differ