User`s guide
Table Of Contents
- Contents
- Tables
- Preface
- Introduction
- Getting Started
- 2.1 Overview
- 2.2 Hardware Required
- 2.3 Hardware Debug Features
- 2.4 Setting Up the SROM Serial Port Connection
- 2.5 Starting and Running the Mini-Debugger
- 2.6 Sample Session on the EB64
- 2.7 Sample Session on the EB64+ and the AlphaPC 6...
- 2.8 Sample Session on the EB66 and EB66+
- 2.9 Sample Session on the EB164
- 2.10 Sample Session on the AlphaPC 164
- 2.11 Sample Session on the AlphaPC 164LX
- 2.12 Onboard Machine Check Handler
- SROM Mini-Debugger Command Set
- Support, Products, and Documentation
- Index
2–14 Getting Started
Sample Session on the EB66 and EB66+
! The next section inits the PCI interface of the DC21071.
SROM> dm
! Set PCI Master Latency Timer to 255.
A> 1a00001e0
D> ff
SROM> dm ! Init HAXR2.
A> 1a00001c0
D> 0
SROM> em ! Perform a PCI configuration read of SIO.
A> 1e0080000
00000001.e0080000: 04848086
SROM> wa
Wrt Addr ON
SROM> mt
A> 0
A> 2000000
SROM>
2.8 Sample Session on the EB66 and EB66+
To run the mini-debugger on the EB66 or the EB66+, first determine the memory
and Bcache size for your motherboard. The jumper settings and memory are
described in the DECchip 21066 and DECchip 21068 Alpha AXP Evaluation Board
User’s Guide and the Alpha 21066A Microprocessor Evaluation Board (EB66+)
User’s Guide. The EB66 supports CPU speeds up to 166 MHz and 2 banks of
memory. The EB66+ supports CPU speeds up to 233 MHz and 3 banks of memory.
To set up the mini-debugger for the EB66 or the EB66+, follow these steps:
1. Ensure that the “Write wrong ECC” bits are cleared in the error status register.