Intel®dcpxa210 processor card, For multi-ice jtag use, Mmc mmclk support – Intel DBPXA250 User Manual
Page 21: Pll voltage too high, Intel, No fix, Dcpxa210 processor card
DBPXA250 and DBPXA210 Development Platforms Specification Update
21
Intel
®
DCPXA210 Processor Card
Intel
®
DCPXA210 Processor Card
1.
For Multi-ICE JTAG Use
Problem:
JTAG connection fails when using ARM Multi-ICE tools.
Implication:
No JTAG debugging facility available with ARM Multi-ICE.
Workaround:
Use the following steps to
1. Cut a trace on the front of the board between U1 pin 3 and via to the right.
2. Add 30-AWG wire from J2-3, to the bottom via of U1 pin1.
Note:
Step 3 is not required for the Rev A DCPXA210 processor cards and ARM Multi-ICE with their
own power supply.
3. Add 30-AWG wire from J2-2 to +3.3 V.
Note:
Perform this modification only if using the ARM Multi-ICE tool. This ECO does not affect the
performance of other JTAG tools.
Status:
No Fix
Board Rev:
Rev A
2.
MMC MMCLK Support
Problem:
DCPXA210 processor card does not allow simultaneous support of FFUART and MultiMedia
Cards (MMC).
Implication:
This limits peripheral support to either the FFUART or the MMC.
Workaround:
Follow the steps below to fix the problem:
1. Remove 0-ohm resistor R17.
2. Add 30-AWG wire from R17 pad (PXA210 pin N14 side) to S5 pin 2.
Status:
No Fix
Board Rev:
Rev A
3.
PLL Voltage Too High
Problem:
The 3.3V PEXTAL output from the oscillator is too high.
Implication:
The too high output could cause damage to the PXA250 applications processor.
Workaround:
The voltage divider lowers the voltage from 3.3 V to approximately 1.1 V.
1. Remove the 0-ohm resistor, R54B, and replace it with a 1-kohm resistor.
2. Attach one side of a 470-ohm resistor to R54B side X1 pin 2 (PEXTAL signal).
3. Run a new wire from the open side of the 470-ohm resistor to GND.
Status:
No Fix
Board Rev:
Rev A