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Revert line out level value
Something wrong with my attempt to apply the math in the datasheet, CHIP_LINE_OUT_VALUE is better set to 0x0505 rather than 0x0D0D.dds
robsoles
10 years ago
1 changed files with 2 additions and 2 deletions
+ 2
- 2
Audio.cpp
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| write(CHIP_ANA_POWER, 0x40FF); // power up: lineout, hp, adc, dac | write(CHIP_ANA_POWER, 0x40FF); // power up: lineout, hp, adc, dac | ||||
| write(CHIP_DIG_POWER, 0x0073); // power up all digital stuff | write(CHIP_DIG_POWER, 0x0073); // power up all digital stuff | ||||
| delay(400); | delay(400); | ||||
| // 40*log((1.575)/(1.65)) + 15 = 13.1391993746043 | |||||
| write(CHIP_LINE_OUT_VOL, 0x0D0D); // [S]TODO: correct value for 3.3V[/S] | |||||
| // 40*log((1.575)/(1.65)) + 15 = 13.1391993746043 but it seems wrong, 5 is better... | |||||
| write(CHIP_LINE_OUT_VOL, 0x0505); // TODO: correct value for 3.3V | |||||
| write(CHIP_CLK_CTRL, 0x0004); // 44.1 kHz, 256*Fs | write(CHIP_CLK_CTRL, 0x0004); // 44.1 kHz, 256*Fs | ||||
| write(CHIP_I2S_CTRL, 0x0130); // SCLK=32*Fs, 16bit, I2S format | write(CHIP_I2S_CTRL, 0x0130); // SCLK=32*Fs, 16bit, I2S format | ||||
| // default signal routing is ok? | // default signal routing is ok? |
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