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Add spidev on device tree #49

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sb10q merged 1 commits from fsagbuya/nix-servo:spidev into master 2024-03-15 11:58:49 +08:00
Conversation 1 Commits 1 Files Changed 1 +48 -7
fsagbuya commented 2024-03-15 11:56:52 +08:00
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Description

Fix SPI interface for devices in pyfastservo.

Device tree reference:
https://github.com/elhep/Fast-Servo-Firmware/blob/master/builds/fast_servo_petalinux/project-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi

Test log:

[nix-shell:~/pyfastservo]# python3 initialize.py 
DEV ID: 0x5340
Si5340 OUTx_PDN CLK3: 0x1
Si5340 OUTx_FORMAT CLK3: 0x204
Si5340 OUTx_AMPL CLK3: 0x59
Si5340 OUTx_CM CLK3: 0x1
Numerator buffer: 0x00
Numerator buffer: 0x00
Numerator buffer: 0x00
Numerator buffer: 0x60
Numerator buffer: 0x22
Numerator buffer: 0x00
Denominator buffer: 0x00
Denominator buffer: 0x00
Denominator buffer: 0x00
Denominator buffer: 0x00
Spi readback register 0x01: 0xff
Different value read than sent in reg 0x02
Spi readback register 0x02: 0xff
Different value read than sent in reg 0x02
Spi readback register 0x03: 0xff
Different value read than sent in reg 0x03
Spi readback register 0x04: 0xff
Different value read than sent in reg 0x04
Performing bitslip (bitslip iteration: 0). Reason: current_frame is 0x00 instead of 0x0C
Performing bitslip (bitslip iteration: 1). Reason: current_frame is 0x00 instead of 0x0C
Performing bitslip (bitslip iteration: 2). Reason: current_frame is 0x00 instead of 0x0C
Performing bitslip (bitslip iteration: 3). Reason: current_frame is 0x00 instead of 0x0C
Tap delay: 0
Current frame: 0x00
Tap delay: 1
Current frame: 0x00
Tap delay: 2
Current frame: 0x00
Tap delay: 3
Current frame: 0x00
Tap delay: 4
Current frame: 0x00
Tap delay: 5
Current frame: 0x00
Tap delay: 6
Current frame: 0x00
Tap delay: 7
Current frame: 0x00
Tap delay: 8
Current frame: 0x00
Tap delay: 9
Current frame: 0x00
Tap delay: 10
Current frame: 0x00
Tap delay: 11
Current frame: 0x00
Tap delay: 12
Current frame: 0x00
Tap delay: 13
Current frame: 0x00
Tap delay: 14
Current frame: 0x00
Tap delay: 15
Current frame: 0x00
Tap delay: 16
Current frame: 0x00
Tap delay: 17
Current frame: 0x00
Tap delay: 18
Current frame: 0x00
Tap delay: 19
Current frame: 0x00
Tap delay: 20
Current frame: 0x00
Tap delay: 21
Current frame: 0x00
Tap delay: 22
Current frame: 0x00
Tap delay: 23
Current frame: 0x00
Tap delay: 24
Current frame: 0x00
Tap delay: 25
Current frame: 0x00
Tap delay: 26
Current frame: 0x00
Tap delay: 27
Current frame: 0x00
Tap delay: 28
Current frame: 0x00
Tap delay: 29
Current frame: 0x00
Tap delay: 30
Current frame: 0x00
Tap delay: 31
Current frame: 0x00
No edge detected; setting iDelay to: 11
ADC_CH0: 0x[0, 0, 0, 0]
Final ADC_CH0: 0x0000
Final ADC_CH1: 0x0000
Spi readback register 0x02: 0xff
Different value read than sent in reg 0x02
0
Unrecognized device: 0x00
=== Contents of spi buffer after DAC VERSION read back: ===
0x9F00
0x8200
0x8200
0x9400
0x9400
0x9400
0x9400
0x9400
0x9400
0x9400
0x9400
0x9400
0x9400
REG contents: 0b000
REG contents: 0b000

Closes #48.

### Description Fix SPI interface for devices in `pyfastservo`. Device tree reference: https://github.com/elhep/Fast-Servo-Firmware/blob/master/builds/fast_servo_petalinux/project-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi Test log: ``` [nix-shell:~/pyfastservo]# python3 initialize.py DEV ID: 0x5340 Si5340 OUTx_PDN CLK3: 0x1 Si5340 OUTx_FORMAT CLK3: 0x204 Si5340 OUTx_AMPL CLK3: 0x59 Si5340 OUTx_CM CLK3: 0x1 Numerator buffer: 0x00 Numerator buffer: 0x00 Numerator buffer: 0x00 Numerator buffer: 0x60 Numerator buffer: 0x22 Numerator buffer: 0x00 Denominator buffer: 0x00 Denominator buffer: 0x00 Denominator buffer: 0x00 Denominator buffer: 0x00 Spi readback register 0x01: 0xff Different value read than sent in reg 0x02 Spi readback register 0x02: 0xff Different value read than sent in reg 0x02 Spi readback register 0x03: 0xff Different value read than sent in reg 0x03 Spi readback register 0x04: 0xff Different value read than sent in reg 0x04 Performing bitslip (bitslip iteration: 0). Reason: current_frame is 0x00 instead of 0x0C Performing bitslip (bitslip iteration: 1). Reason: current_frame is 0x00 instead of 0x0C Performing bitslip (bitslip iteration: 2). Reason: current_frame is 0x00 instead of 0x0C Performing bitslip (bitslip iteration: 3). Reason: current_frame is 0x00 instead of 0x0C Tap delay: 0 Current frame: 0x00 Tap delay: 1 Current frame: 0x00 Tap delay: 2 Current frame: 0x00 Tap delay: 3 Current frame: 0x00 Tap delay: 4 Current frame: 0x00 Tap delay: 5 Current frame: 0x00 Tap delay: 6 Current frame: 0x00 Tap delay: 7 Current frame: 0x00 Tap delay: 8 Current frame: 0x00 Tap delay: 9 Current frame: 0x00 Tap delay: 10 Current frame: 0x00 Tap delay: 11 Current frame: 0x00 Tap delay: 12 Current frame: 0x00 Tap delay: 13 Current frame: 0x00 Tap delay: 14 Current frame: 0x00 Tap delay: 15 Current frame: 0x00 Tap delay: 16 Current frame: 0x00 Tap delay: 17 Current frame: 0x00 Tap delay: 18 Current frame: 0x00 Tap delay: 19 Current frame: 0x00 Tap delay: 20 Current frame: 0x00 Tap delay: 21 Current frame: 0x00 Tap delay: 22 Current frame: 0x00 Tap delay: 23 Current frame: 0x00 Tap delay: 24 Current frame: 0x00 Tap delay: 25 Current frame: 0x00 Tap delay: 26 Current frame: 0x00 Tap delay: 27 Current frame: 0x00 Tap delay: 28 Current frame: 0x00 Tap delay: 29 Current frame: 0x00 Tap delay: 30 Current frame: 0x00 Tap delay: 31 Current frame: 0x00 No edge detected; setting iDelay to: 11 ADC_CH0: 0x[0, 0, 0, 0] Final ADC_CH0: 0x0000 Final ADC_CH1: 0x0000 Spi readback register 0x02: 0xff Different value read than sent in reg 0x02 0 Unrecognized device: 0x00 === Contents of spi buffer after DAC VERSION read back: === 0x9F00 0x8200 0x8200 0x9400 0x9400 0x9400 0x9400 0x9400 0x9400 0x9400 0x9400 0x9400 0x9400 REG contents: 0b000 REG contents: 0b000 ``` Closes #48.
fsagbuya added 1 commit 2024-03-15 11:56:52 +08:00
sb10q merged commit 628582a981 into master 2024-03-15 11:58:49 +08:00
sb10q commented 2024-03-15 12:00:06 +08:00
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No edge detected; setting iDelay to: 11
Different value read than sent in reg 0x02

Those don't look good. Those init scripts are very poorly written so it's unclear what the problem is though.

> No edge detected; setting iDelay to: 11 > Different value read than sent in reg 0x02 Those don't look good. Those init scripts are very poorly written so it's unclear what the problem is though.
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Reference: M-Labs/nix-servo#49
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