Oborn at 05:05, 9 April 2009

2009-04-09T05:05:56Z

Oborn: New page: The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basi...

2009-04-09T05:03:43Z

New page: The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basi...

New page

The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basically we need to switch each pair of cables to be correct or adjust otherwise.

=== Ribbon cable pinouts ===

{| border="1" cellpadding="4"
|-
| # || VFAT <br/> pin # || Name || Value || Test rig color <br/> Primary/Second <br/> (main color/smaller color) || mirror strategy
|-
| B1 || || DGND || Digital Ground || Black/Grey (shared) || Switch the DGND and DVDD traces along the bottom
|-
| A1 || || DVDD || +2.5V || Red/Grey (shared) || Switch the DGND and DVDD traces along the bottom
|-
| B2 || 168 || SDA || I2C Data || Green/Yellow || Switch the SDA and SCL wires coming onto board
|-
| A2 || 167 || SCL || I2C Clock || Yellow/Green || Switch the SDA and SCL wires coming onto board
|-
| B3 || || DGND || Digital Ground || Black/Grey (shared) || Switch the DGND and DVDD traces along the bottom
|-
| A3 || || DVDD || +2.5V || Red/Grey (shared) || Switch the DGND and DVDD traces along the bottom
|-
| B4 || 162 || DACo-V || DAC output Volt || No Connection || Not used in this experiment
|-
| A4 || 163 || DACo-I || DAC output Current || No Connection || Not used in this experiment
|-
| B5 || 164 || I2C ADDR 2 || I2C Address Most || White/Blue || Adjust in software/i2c address selector
|-
| A5 || 165 || I2C ADDR 1 || I2C Address Middle || White/Orange || Adjust in software/i2c address selector
|-
| B6 || 166 || I2C ADDR 0 || I2C Address Least || White/Green || Cut trace and wire appropriately
|-
| A6 || 169 || REsB || Soft Reset (Program saved) || White/Grey || Wire to Vcc
|-
| B7 || 170 || ForceRehOff || ?? bond to grnd || No Connection || Use hard reset pin to set to correct value
|-
| A7 || 171 || REhB || Hard Reset || Grey/White || Bridge to A6 (soft reset/Vcc)
|-
| B8 || 173 || MCLKB (-) || || Orange/Purple || Reverse LVDS wire/signal
|-
| A8 || 174 || MCLK (+) || || Purple/Orange || Reverse LVDS wire/signal
|-
| B9 || 175 || T1B (-) || || Green/Purple || Reverse LVDS wire/signal
|-
| A9 || 176 || T1 (+) || || Purple/Green || Reverse LVDS wire/signal
|-
| B10 || 177 || ScanOut || || Brown/Purple || Reverse LVDS wire/signal
|-
| A10 || 178 || ScanIn || || Purple/Brown || Reverse LVDS wire/signal
|-
| B11 || 180 || DataValidB (-) || || Grey/Purple || Reverse LVDS wire/signal
|-
| A11 || 181 || DavaValid (+) || || Purple/Grey || Reverse LVDS wire/signal
|-
| B12 || 182 || DataOutB (-) || || Blue/Black || Reverse LVDS wire/signal
|-
| A12 || 183 || DataOut (+) || || Black/Blue || Reverse LVDS wire/signal
|-
| B13 || 184 || SB8 (-) || || Orange/Black || Not used on breakout board
|-
| A13 || 185 || S8 (+) || || Black/Orange || Not used on breakout board
|-
| B14 || 186 || SB7 (-) || || Green/Red || Not used on breakout board
|-
| A14 || 187 || S7 (+) || || Red/Green || Not used on breakout board
|-
| B15 || 188 || SB6 (-) || || Orange/Red || Not used on breakout board
|-
| A15 || 189 || S6 (+) || || Red/Orange || Not used on breakout board
|-
| B16 || 190 || SB5 (-) || || Blue/Red || Not used on breakout board
|-
| A16 || 191 || S5 (+) || || Red/Blue || Not used on breakout board
|-
| B17 || 192 || SB4 (-) || || Grey/Yellow || Not used on breakout board
|-
| A17 || 193 || S4 (+) || || Yellow/Grey || Not used on breakout board
|-
| B18 || 194 || SB3 (-) || || Brown/Yellow || Not used on breakout board
|-
| A18 || 195 || S3 (+) || || Yellow/Brown || Not used on breakout board
|-
| B19 || 196 || SB2 (-) || || Orange/Yellow || Not used on breakout board
|-
| A19 || 197 || S2 (+) || || Yellow/Orange || Not used on breakout board
|-
| B20 || 198 || SB1 (-) || || Blue/Yellow || Not used on breakout board
|-
| A20 || 199 || S1 (+) || || Yellow/Blue || Not used on breakout board
|-
| B21 || || DGND || Digital Ground || No Connection || Switch the DGND and DVDD traces along the bottom
|-
| A21 || || DVDD || +2.5V || No Connection || Switch the DGND and DVDD traces along the bottom
|-
| B22 || || DGND || Digital Ground || No Connection || Switch the DGND and DVDD traces along the bottom
|-
| A22 || 179 || ScanEn || Scan Mode Enable || No Connection
|-
| B23 || || AGND || Analog Ground || No Connection || Switch AGND and AVDD wires coming onto board
|-
| A23 || || AVDD || 2.5V || Grey/Red || Switch AGND and AVDD wires coming onto board
|-
| B24 || || AGND || Analog Ground || Grey/Black || Switch AGND and AVDD wires coming onto board
|-
| A24 || || AVDD || 2.5V || Grey/Red || Switch AGND and AVDD wires coming onto board
|-
| B25 || || AGNDD || Analog Ground || Grey/Black || Switch AGND and AVDD wires coming onto board
|-
| A25 || || AVDD || 2.5V || Grey/Red || Switch AGND and AVDD wires coming onto board
|-

|}

@@ Line 1: / Line 1: @@
-The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basically we need to switch each pair of cables to be correct or adjust otherwise.
+The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basically we need to switch each pair of cables to be correct or adjust otherwise. With the following strategy we will loose the capability to remotely hard or soft reset, but we can always power off the board manually if need be.
 === Ribbon cable pinouts ===
@@ Line 107: / Line 107: @@
 | A25 || || AVDD || 2.5V || Grey/Red || Switch AGND and AVDD wires coming onto board
 |-
 |}

VFAT board mirror - Revision history

Oborn at 05:05, 9 April 2009

Oborn: New page: The prototype VFAT breakout board has the A and B sides switched on the PCB. For the final board this will need to be fixed, but for the run on the HRRL we need a mitigating strategy. Basi...