Difference between revisions of "Hardware FAQ"
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* TDA3681J : Multiple voltage regulator with switch and ignition buffer [PHILIPS] |
* TDA3681J : Multiple voltage regulator with switch and ignition buffer [PHILIPS] |
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* [http://pdf.alldatasheet.com/datasheet-pdf/view/94044/PHILIPS/TDA3681J.html Datasheet] |
* [http://pdf.alldatasheet.com/datasheet-pdf/view/94044/PHILIPS/TDA3681J.html Datasheet] |
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| − | + | The pins go from 1 to 17 from left to right as you're looking from the inside of the phatbox towards the back. |
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| + | == Constant Power Pins == |
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| + | These pins should be on at least when the ignition is on, but don't require the head unit to be "on." |
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| + | == Switched Power Pins == |
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| + | * Pin 2 (Regulator 3) is 5V |
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= PCB Layout (Photos) = |
= PCB Layout (Photos) = |
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Revision as of 13:40, 23 July 2005
This page gathers all kinds of information we know about the PB hardware
CPU
- ARM
- Cirrus Logic EP7312 (Maverick)
- 74MHz
- 2x 16550 UART (serial)
- LCD display controller
- Datasheet
- User's Guide
Microcontroller
- 8052
- 24MHz
- Headunit interfacing
- Datasheet (Winbond W78E516B)
D/A-Converter
- Cirrus Logic CS4341
- 16-bit
- Datasheet
or
- Burr-Brown/TI PCM1748E (U7)
- 24-bit/96kHz
- Datasheet
IDE interface controller
Flash ROM
- ST Micro M29W200BB
- 2 MBit
- Automotive grade
- Datasheet
or
- AMD AM29LV200BB-90EC
- 2 MBit
- Commercial grade (0-70 degC)
- Datasheet
Complex Programmable Logic Device (CPLD)
Power Regulator
- TDA3681J : Multiple voltage regulator with switch and ignition buffer [PHILIPS]
- Datasheet
The pins go from 1 to 17 from left to right as you're looking from the inside of the phatbox towards the back.
Constant Power Pins
- Pin 13 is ground
- Pin 15 (Regulator 2) should be 5V. This powers the microcontroller.
These pins should be on at least when the ignition is on, but don't require the head unit to be "on."
Switched Power Pins
- Pin 4 (Regulator 4) is 3.3V, This is the supply for the ARM, SDRAM, Flash, etc.
- Pin 2 (Regulator 3) is 5V
- Pin 1 (Regulator 1) is 8.5V, and I'm not sure it gets used for anything (it might not even be enabled, I haven't checked)
The regulators that supply the power on these pins are controlled by the 8051 and are only on when the PB is powered-up by the head unit.
PCB Layout (Photos)
PCB Jumpers
JP5
- JP5 -- XILINX 9572XL - JTAG
- Pin 6 > 9572XL Pin 48 - TCLK
- Pin 8 > 9572XL Pin 83 - TDO
- Pin 10 > 9572XL Pin 45 - TDI
- Pin 12 > 9572XL Pin 47 - TMS
JP6
- JP6 -- ARM JTAG (No Connector, just pads)
- Pin 3 > 7312 Pin 125 - nTRST
- Pin 5 > 7312 Pin 11 - TDI
- Pin 7 > 7312 Pin 58 - TMS
- Pin 9 > 7312 Pin 90 - TCLK
- Pin 11 > 7312 Pin 22 - TDO
JP8
This is JP4 on the C710 board
- JP8 -- ARM UART1 (SERIAL PORT!!!)
- Pin 1 > board power
- Pin 2 > pin18 - PB2 [GPIO port B]
- Pin 3 > some resistor, hard to trace past.
- Pin 5 > 7312 Pin 32 - TDX[1]
- Pin 7 > 7312 Pin 36 - RXD[1]
- Pin 9 > 7312 Pin 37 - DCD
- Pin 11 > 7312 Pin 38 - DSR
- Pin 13 > 7312 Pin 35 - CTS
JP9
- JP9 -- XILINX 5032C - JTAG
- Pin 6 > 5032C Pin 26 - TCLK
- Pin 8 > 5032C Pin 32 - TDO
- Pin 10 > 5032C Pin 1 - TDI
- Pin 12 > 5032C Pin 7 - TMS
For connections to the JP arrays you can use either: Molex 87332-1420 or DigiKey WM18078-ND
DMS Cartridge
- 2.5" Notebook harddisk (9.5mm, "rugged" edition)
- FAT32 filesystem
- 2 Partitions (PHTSYS, PHTDATA)