主题中讨论的其他器件：AM625
工具/软件：
您好、
抱歉未标记正确的器件。 这个问题与 TAS5802 有关 但在创建问题时、我无法在表单中找到此器件。
我正在开发一个运行 AM625 和 TAS5802 的定制电路板。 有关集成详细信息 、请参阅此 TI E2E 主题。
当前系统正在检测放大器、ALSA 确实报告其匹配的回放接口。
我面临的问题是、 当我播放放大器时、放大器不会进入播放模式。
在 McASP 输出了正确的音频帧之后、我重点关注 TAS5802 并使用调试指令来获取其 regdump：
# echo 0 0x00 0x00 > regdump # cat regdump i2c-addr: 0x54 DeviceID: 0x0d Chn0B0x00P0x00R0x00:0x00 Chn0B0x00P0x00R0x01:0x11 Chn0B0x00P0x00R0x02:0x01 Chn0B0x00P0x00R0x03:0x02 <<------- HiZ mode while playing?? Chn0B0x00P0x00R0x04:0x00 Chn0B0x00P0x00R0x05:0x00 Chn0B0x00P0x00R0x06:0x00 Chn0B0x00P0x00R0x07:0x00 Chn0B0x00P0x00R0x08:0x00 Chn0B0x00P0x00R0x09:0x00 Chn0B0x00P0x00R0x0a:0x00 Chn0B0x00P0x00R0x0b:0x00 Chn0B0x00P0x00R0x0c:0x00 Chn0B0x00P0x00R0x0d:0x00 Chn0B0x00P0x00R0x0e:0x00 Chn0B0x00P0x00R0x0f:0x00 Chn0B0x00P0x00R0x10:0x01 Chn0B0x00P0x00R0x11:0x00 Chn0B0x00P0x00R0x12:0x00 Chn0B0x00P0x00R0x13:0x00 Chn0B0x00P0x00R0x14:0x11 Chn0B0x00P0x00R0x15:0x00 Chn0B0x00P0x00R0x16:0x00 Chn0B0x00P0x00R0x17:0x00 Chn0B0x00P0x00R0x18:0x00 Chn0B0x00P0x00R0x19:0x00 Chn0B0x00P0x00R0x1a:0x00 Chn0B0x00P0x00R0x1b:0x00 Chn0B0x00P0x00R0x1c:0x00 Chn0B0x00P0x00R0x1d:0x00 Chn0B0x00P0x00R0x1e:0x00 Chn0B0x00P0x00R0x1f:0x00 Chn0B0x00P0x00R0x20:0x01 Chn0B0x00P0x00R0x21:0x07 Chn0B0x00P0x00R0x22:0x09 Chn0B0x00P0x00R0x23:0x01 Chn0B0x00P0x00R0x24:0x00 Chn0B0x00P0x00R0x25:0x40 Chn0B0x00P0x00R0x26:0x02 Chn0B0x00P0x00R0x27:0x00 Chn0B0x00P0x00R0x28:0x00 Chn0B0x00P0x00R0x29:0x00 Chn0B0x00P0x00R0x2a:0x00 Chn0B0x00P0x00R0x2b:0x00 Chn0B0x00P0x00R0x2c:0x00 Chn0B0x00P0x00R0x2d:0x00 Chn0B0x00P0x00R0x2e:0x00 Chn0B0x00P0x00R0x2f:0x00 Chn0B0x00P0x00R0x30:0x00 Chn0B0x00P0x00R0x31:0x00 Chn0B0x00P0x00R0x32:0x00 Chn0B0x00P0x00R0x33:0x02 Chn0B0x00P0x00R0x34:0x00 Chn0B0x00P0x00R0x35:0x11 Chn0B0x00P0x00R0x36:0x00 Chn0B0x00P0x00R0x37:0x00 Chn0B0x00P0x00R0x38:0x40 Chn0B0x00P0x00R0x39:0x00 Chn0B0x00P0x00R0x3a:0xf9 Chn0B0x00P0x00R0x3b:0x04 Chn0B0x00P0x00R0x3c:0x60 Chn0B0x00P0x00R0x3d:0x20 Chn0B0x00P0x00R0x3e:0x80 Chn0B0x00P0x00R0x3f:0x00 Chn0B0x00P0x00R0x40:0x01 Chn0B0x00P0x00R0x41:0x00 Chn0B0x00P0x00R0x42:0x00 Chn0B0x00P0x00R0x43:0x00 Chn0B0x00P0x00R0x44:0x00 Chn0B0x00P0x00R0x45:0x00 Chn0B0x00P0x00R0x46:0x11 Chn0B0x00P0x00R0x47:0x00 Chn0B0x00P0x00R0x48:0x00 Chn0B0x00P0x00R0x49:0x00 Chn0B0x00P0x00R0x4a:0x00 Chn0B0x00P0x00R0x4b:0x00 Chn0B0x00P0x00R0x4c:0x30 Chn0B0x00P0x00R0x4d:0x30 Chn0B0x00P0x00R0x4e:0x33 Chn0B0x00P0x00R0x4f:0x30 Chn0B0x00P0x00R0x50:0x00 Chn0B0x00P0x00R0x51:0x55 Chn0B0x00P0x00R0x52:0x00 Chn0B0x00P0x00R0x53:0x01 Chn0B0x00P0x00R0x54:0x00 Chn0B0x00P0x00R0x55:0x00 Chn0B0x00P0x00R0x56:0x00 Chn0B0x00P0x00R0x57:0x00 Chn0B0x00P0x00R0x58:0x00 Chn0B0x00P0x00R0x59:0x00 Chn0B0x00P0x00R0x5a:0x00 Chn0B0x00P0x00R0x5b:0x00 Chn0B0x00P0x00R0x5c:0x00 Chn0B0x00P0x00R0x5d:0xf8 Chn0B0x00P0x00R0x5e:0x00 Chn0B0x00P0x00R0x5f:0x00 Chn0B0x00P0x00R0x60:0x01 Chn0B0x00P0x00R0x61:0x0b Chn0B0x00P0x00R0x62:0x00 Chn0B0x00P0x00R0x63:0x00 Chn0B0x00P0x00R0x64:0x00 Chn0B0x00P0x00R0x65:0x00 Chn0B0x00P0x00R0x66:0x03 Chn0B0x00P0x00R0x67:0xa8 Chn0B0x00P0x00R0x68:0x00 Chn0B0x00P0x00R0x69:0x00 Chn0B0x00P0x00R0x6a:0x00 Chn0B0x00P0x00R0x6b:0x00 Chn0B0x00P0x00R0x6c:0x00 Chn0B0x00P0x00R0x6d:0x50 Chn0B0x00P0x00R0x6e:0x11 Chn0B0x00P0x00R0x6f:0x24 Chn0B0x00P0x00R0x70:0x00 Chn0B0x00P0x00R0x71:0x00 Chn0B0x00P0x00R0x72:0x00 Chn0B0x00P0x00R0x73:0x00 Chn0B0x00P0x00R0x74:0x00 Chn0B0x00P0x00R0x75:0x38 Chn0B0x00P0x00R0x76:0x00 Chn0B0x00P0x00R0x77:0xff Chn0B0x00P0x00R0x78:0x80 Chn0B0x00P0x00R0x79:0x00 Chn0B0x00P0x00R0x7a:0x09 Chn0B0x00P0x00R0x7b:0x03 Chn0B0x00P0x00R0x7c:0x00 Chn0B0x00P0x00R0x7d:0x00 Chn0B0x00P0x00R0x7e:0xe0 Chn0B0x00P0x00R0x7f:0x00 ======caught smartpa reg end ======
通过使用 TAS5802 数据表检查寄存器可以看到这一点 STATE_CTL 中导出 DEVICE_CTRL2 寄存器 ( 3h ) 设置为 Hi-Z 。
我尝试手动将其设置为 播放 其中：
回波 0 0x00 0x00 0x03 >寄存器
放大器立即开始驱动扬声器。
这是驱动器的输出、以防万一：
[1174.561113] tasdevice-codec 3-0054：tasdevice_hw_params：播放
[1174.569234] TASDEVICE-CODEC 3-0054：TASDEVICE_HW_PARAMS：BCLK 速率= 1536000 通道= 2 采样速率= 48000 时隙宽度= 16
[1174.608625] tasdevice-codec 3-0054：PowerControl_routy:1276：enter
[1174.615036] tasdevice-codec 3-0054：select_cfg_blk：profile_conf_id = 0
[ 1174.621664] tasdevice-codec 3-0054：select_cfg_blk：CONF 0、块类型：pre_power_up 器件 idx = 0x00
[1174.640313] tasdevice-codec 3-0054：PowerControl_routy:1285：离开
我无法在该线程上附加.bin 文件。 如果你想检查它,请给我和我分享一个链接或直接通过电子邮件发送. fWIW、它是根据生成的 TAS5802-1amp-reg.json 与驱动程序相同的存储库中执行指令。
我希望放大器在不敲打寄存器的情况下播放。 对此有何想法？
此致、
António μ s
