Beta Power Board Revision as of 20:26, 8 September 2016 by Sebastian (talk | contribs) (→‎Calibrating Voltages)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

PCB Top

PCB Bottom

PCB Top with components

PCB Bottom with components

1 About

TODO

2 Revisions

Current:

AXIOM Beta Power Board v0.25

---

Archive:

axiom beta power board v0.23

axiom beta power board v0.22 test

axiom beta power board v0.17 test

axiom beta power board v0.11 test

axiom beta power board v0.8 test

axiom beta power board v0.9 test

3 Calibrating Voltages

This describes the process required when factory assembling the power board hardware in the AXIOM Beta stack.

./power_init.sh

./power_on.sh

wait a bit

./pac1720_info.sh

This will output something like:

ZED_5V          4.8828 V [1f40]         +10.1562 mV [104]   +677.08 mA
BETA_5V         4.8828 V [1f40]          +1.2891 mV [021]    +85.94 mA
HDN             3.2812 V [1500]          +0.0000 mV [000]     +0.00 mA
PCIE_N_V        3.2422 V [14c0]          +0.0000 mV [000]     +0.00 mA
HDS             3.2031 V [1480]          +0.0000 mV [000]     +0.00 mA
PCIE_S_V        3.2422 V [14c0]          +0.0000 mV [000]     +0.00 mA
RFW_V           3.2422 V [14c0]          -0.0391 mV [fff]     -2.60 mA
IOW_V           3.2617 V [14e0]          +0.0000 mV [000]     +0.00 mA
RFE_V           3.2422 V [14c0]          +0.0000 mV [000]     +0.00 mA
IOE_V           3.2812 V [1500]          +0.0000 mV [000]     +0.00 mA
VCCO_35         2.4219 V [ f80]          -0.0391 mV [fff]     -2.60 mA
VCCO_13         2.4609 V [ fc0]          +0.0000 mV [000]     +0.00 mA
PCIE_IO         2.4609 V [ fc0]          -0.0781 mV [ffe]     -5.21 mA
VCCO_34         2.4609 V [ fc0]          +0.9766 mV [019]    +65.10 mA
W_VW            2.7734 V [11c0]          +0.0000 mV [000]     +0.00 mA
N_VW            2.8125 V [1200]          +0.0000 mV [000]     +0.00 mA
N_VN            2.7734 V [11c0]          -0.0391 mV [fff]     -2.60 mA
N_VE            2.8516 V [1240]          +0.0000 mV [000]     +0.00 mA
E_VE            2.6953 V [1140]          -0.0391 mV [fff]     -2.60 mA
S_VE            2.8516 V [1240]          +0.0000 mV [000]     +0.00 mA
S_VS            2.7344 V [1180]          -0.0391 mV [fff]     -2.60 mA
S_VW            2.8516 V [1240]          -0.0781 mV [ffe]     -5.21 mA

now run:

watch -n 0.2 ./pac1720_info.sh

which will display the voltages in a clear screen and constantly update the values until you press CTRL+C

Use a tiny screwdriver and adjust the trimmers on the PCB until your values look like this:

The PCB labels and the labels in the CLI correspond like the following:

WW = W_VW
NW = N_VW
NN = N_VN
NE = N_VE
SW = S_VW
SS = S_VS
SE = S_VE
EE = E_VE

W_VW          	2.4609 V [ fc0] 	 -0.0391 mV [fff]     -2.60 mA
N_VW          	3.2422 V [14c0] 	 +0.0000 mV [000]     +0.00 mA
N_VN          	1.8750 V [ c00] 	 -0.0391 mV [fff]     -2.60 mA
N_VE          	3.2617 V [14e0] 	 +0.0000 mV [000]     +0.00 mA
E_VE          	3.2812 V [1500] 	 +0.0391 mV [001]     +2.60 mA
S_VE          	1.9922 V [ cc0] 	 +0.0000 mV [000]     +0.00 mA
S_VS          	2.9883 V [1320] 	 -0.0391 mV [fff]     -2.60 mA
S_VW          	1.9531 V [ c80] 	 -0.1172 mV [ffd]     -7.81 mA