Hi, I receive a question about the TLV320AIC3262 register settings from a customer. By a certain setting, TVL320AIC3262 does not output sound from HPR. I show an example of the failure of register setting. figure 1 figure 2 Figure 1 is a setting the LEFT DAC signal outputs from RECP/M, and figure 2 is a setting the LEFT DAC signal outputs from HPR. Sometimes HPR does not output a sound when changing the path from figure 1 to figure 2. In this case, before the figure 2 setting, by addition to some register settings as shown below, HPR could output a sound. B0_P0_R0 = 0x01 B0_P1_R27 = 0x03 B0_P1_R28 = 0x00 B0_P1_R31 = 0x80 However he can't insert these register settings because of software structure and lack of micro-controller resources. Is there any way of register settings to prevent the failure of HPR output? Up to now, HPL outputs a sound by similar setting. An example of setting is as follows. B0_P0_R0 = 0x00 B0_P0_R127 = 0x00 B0_P0_R0 = 0x01 B0_P1_R55 = 0x00 B0_P1_R57 = 0x00 B0_P0_R0 = 0x00 B0_P0_R81 = 0x02 B0_P0_R82 = 0xc8 B0_P0_R0 = 0x04 B0_P4_R86 = 0x0c B0_P0_R0 = 0x01 B0_P1_R52 = 0x00 B0_P1_R18 = 0x3f B0_P1_R22 = 0x04 B0_P1_R36 = 0x38 B0_P1_R17 = 0x00 B0_P0_R0 = 0x00 B0_P0_R63 = 0x00 B0_P0_R0 = 0x01 B0_P1_R40 = 0x00 B0_P1_R40 = 0x39 B0_P0_R0 = 0x00 B0_P0_R64 = 0x0c ################ additional settings ################ *B0_P0_R0 = 0x01 *B0_P1_R27 = 0x03 *B0_P1_R28 = 0x00 *B0_P1_R31 = 0x80 ##################################################### B0_P0_R0 = 0x01 B0_P1_R59 = 0x80 B0_P1_R60 = 0xb0 B0_P1_R122 = 0x05 B0_P1_R51 = 0x3a B0_P1_R58 = 0x00 B0_P0_R0 = 0x04 B0_P4_R10 = 0x01 B0_P0_R0 = 0x00 B0_P0_R19 = 0x30 B0_P0_R12 = 0x08 B0_P0_R11 = 0x02 B0_P0_R6 = 0x11 B0_P0_R6 = 0x91 B0_P0_R11 = 0x82 B0_P0_R19 = 0xb0 B0_P0_R12 = 0x88 B0_P0_R0 = 0x01 B0_P1_R51 = 0x7e B0_P1_R58 = 0xff B0_P0_R0 = 0x04 B0_P4_R10 = 0x00 B0_P0_R0 = 0x01 B0_P1_R122 = 0x01 B0_P1_R59 = 0x00 B0_P1_R60 = 0x30 B0_P0_R0 = 0x00 B0_P0_R81 = 0x42 B0_P0_R0 = 0x01 B0_P1_R55 = 0x01 B0_P1_R57 = 0x40 B0_P0_R0 = 0x00 B0_P0_R82 = 0xc0 B0_P0_R0 = 0x04 B0_P4_R87 = 0x0d B0_P0_R0 = 0x01 B0_P1_R52 = 0xc0 B0_P1_R18 = 0x28 B0_P1_R22 = 0x87 B0_P1_R17 = 0x08 B0_P0_R0 = 0x00 B0_P0_R63 = 0x80 B0_P0_R0 = 0x01 B0_P1_R27 = 0x01 B0_P0_R0 = 0x00 B0_P0_R65 = 0x04 B0_P0_R0 = 0x01 B0_P1_R29 = 0x00 B0_P1_R32 = 0x00 B0_P0_R0 = 0x00 B0_P0_R64 = 0x04 B0_P0_R0 = 0x01 B0_P1_R28 = 0x7f B0_P1_R31 = 0xb9 Best regards, Akio Ito
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