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AFE3256:

Part Number: AFE3256

Tool/software:

AFE3256TFV

SPI Read/Write is working fine and VER_ID 0x9 is also read well.

When MCLK 20MHz is entered, STR=0 is set and DCLK 240MHz and FCLK 0xFF0000 are normal.

But nothing appears in the DOUT output. The 8-bit data corresponding to the align information among the 24-bits also does not appear.

CALIB_DONE (register 0x4B, bit 14) does not go high when performing digital offset correction.

Even if DIG_TP_MUX_SEL is set to 1h (IRST signal), nothing is output to DIG_TP. Note that IRST contains a non-zero value.

Any guesses as to why this is happening? I've also measured the voltages and they're all normal.

The information written via SPI is in the following order and each is at 10ms intervals.

000001,
010105,
AC8000,
0B0020,
7B0800,
7B8800,
7B8840,
7B8800,
7B0800,
7B0000,
0B0000,
80080D,
940001,
910019,
090202,
700200,
968000,
080004,
130200,
A34C20,
8D0240,
8E0002,
A54000,
A91E00,
893000,
030006,
500001,
510001,
030000,
824040,
0B0006,
908000,
05000C,
510006,
CA0204,
950006,
80080D,
CF0000,
E90000,
D20000,
820B0B,
860000,
880000,
8E0002,
D00000,
FC0000,
E70000,
A34C20,
DA0000,
A54000,
030006,
200000,
030000,
3A0014,
3B0018,
3E0022,
3D008c,
3C0036,
1E040F,
1F000A,
AD1400,
B00000,
B27D80,
B50010,
B60000,
C00000,
C30020,
AF0000,
BC0000,
810000,
0B0006,
968000,
0D4800,
948001,
893230,
80082D,
4C0003,
510306,
4B8003,
4B0003,
4C8003,
0D0000,
940001,
893000,
80080D,