Diamond Systems PR-Z32-E-ST Failsafe Mode / Bios Recovery, Flash Memory, Backup Battery

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6.5Failsafe Mode / BIOS Recovery

The ZFx86 failsafe feature consists of a small command interpreter built in to the ZFx86 CPU chip. The ZFx86 contains a ROM with the command interpreter as well as an 8KB RAM. It may be used to power up the system and download the BIOS to recover from situations in which the BIOS accidentally becomes corrupted or erased. The failsafe feature is used in the factory to program the BIOS in new Prometheus boards for the first time.

To enable the failsafe feature when the panel board is not used, install a jumper between pins 1 and 3 of J6 on Prometheus. To enable failsafe feature when the panel board is used, press the ZFIX button on the panel board while pressing and releasing the Reset button (the ZFIX button must be released after the Reset button is released). During the next system reset, the board will power up to the failsafe boot ROM and provide user I/O through COM1. At this point the DSC utility program ZFTERM.EXE may be used to download the BIOS to the board. See the information in the \Utilities\BIOS Recovery folder of the Prometheus files area of the DSC customer CD for instructions on using this program.

6.6Flash Memory

Prometheus contains a 2Mbyte 16-bit wide flash memory chip for storage of BIOS and optional user files. The BIOS occupies the upper 256Kbytes, leaving the rest available for user applications.

6.7Backup Battery

Prometheus contains an integrated RTC / CMOS RAM backup battery. The battery is located adjacent to the PC/104 bus connector J1. This battery has a capacity of 30mAH and will last approximately 2 years in power-off state. The battery is activated for the first time during initial factory configuration and test.

6.8System Reset

Prometheus contains a chip to control system reset operation. Reset will occur under either of two conditions:

♦User causes reset with a ground contact on the Reset input

♦Input voltage drops below 3.0V.

The ISA Reset signal is an active high pulse with a duration of 200ms.

Prometheus CPU User Manual V1.44

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Contents Prometheus Table of Contents 22.4 22.2CPU DescriptionFeatures System FeaturesProcessor Section Analog Input Counter/TimersAnalog Output Digital I/OPrometheus Board Drawing O Headers Main I/O Connector J3Cable a Cable BCOM1 COM4 Connector Part NumbersLPT1 IR RX, IR TXInput Power J11 Output Power J12 Ethernet J4USB J5 Watchdog/Failsafe Features J6 Auxiliary Serial Port Connector J15IDE Drive J8 Floppy Drive J7Signal Name Definition Data Acquisition I/O Connector J14 Model PR-Z32-EA onlyJ2 PC/104 16-bit bus connector J1 PC/104 8-bit bus connector 11 PC/104 Bus ConnectorsJumper Configuration J10 System ConfigurationCmos RAM J6 Watchdog Timer & System Recovery System Features System ResourcesCPU Chip Selects Console Redirection to a Serial Port Watchdog Timer Backup Battery Failsafe Mode / Bios RecoverySystem Reset Flash MemoryBios Bios SettingsDOS Bios Download / Recovery Initial Setup Disk-On-Board Flash File StorageOperating System Formatting Life Cycle Management and Calculations Known LimitationsEthernet System I/OParallel Port Serial PortsInstalling an OS From a Floppy Drive onto a Flashdisk Module Booting to DOS From a Floppy DriveInstalling an OS from a Hard Disk onto a Flashdisk Module Data Acquisition Circuit Base Address Data Acquisition Circuitry I/O MAPBase + Write Function Read Function LSBAD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 Data Acquisition Circuit Register MapCommand Register Register Bit DefinitionsBase + Value = Base + 0 value + Base + 1 value Base + ReadBase + Write Not Used Read AD9 AD8Base + Read/Write Channel Register Base + Write Analog Input Gain STS Wait Dacbsy OVF Scanen Base + Read Analog Input StatusCKSEL1 CKFRQ1 CKFRQ0 Adclk Dmaen Tinte Dinte Ainte Base + Read/Write Interrupt / DMA / Counter ControlBase + Read/Write Fifo Threshold FT5 FT4 FT3 FT2 FT1 FT0DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 Base + WriteBase + Read Channel and Fifo Status FD5 FD4 FD3 FD2 FD1 FD0DACH1 DACH0 Base + Write DAC MSB + Channel NoDA9 DA8 Base + Read Analog Operation StatusBase + Read / Write Digital I/O Control Register Base + Read / WriteDioctr Dira Dirch Dirb Dircl Dioctr =Base + Read/Write Counter/Timer D7 Base + Read/Write Counter/Timer D15Base + Read/Write Counter/Timer D23 Ctrno Latch Gtdis Gten Ctdis Cten Load CLR Base + Write Counter/Timer Control RegisterREV7 REV6 REV5 REV4 REV3 REV2 REV1 REV0 Base + Read Fpga Revision CodeData Acquisition Circuit Configuration Analog Output Configuration Single-ended / Differential InputsUnipolar / Bipolar Inputs Input Range Resolution 1 LSB Analog Input Ranges and ResolutionOverview Input Range SelectionPerforming AN A/D Conversion LSB = inpbase MSB = inpbase+1 Perform an A/D conversion on the current channelInput voltage = A/D value / 32768 * Full-scale input range 15.A/D SCAN, INTERRUPT, and Fifo Operation Prometheus A/D Operating Modes LOW, HighAinte Scanen Resolution Analog Output Ranges and ResolutionDescription LSB = Output voltage rangeREF 1 LSB 16.4 D/A Conversion Formulas and TablesConversion Formulas for Bipolar Output Ranges Generating AN Analog Output 18.1 A/D bipolar offset Analog Circuit Calibration18.2 A/D unipolar offset 18.3 A/D full-scaleDigital I/O Operation COUNTER/TIMER Operation Counter 0 A/D Sample ControlCounter 1 Counting/Totalizing Functions Counter Command SequencesCounter Outpbase+15,0x01 Outpbase+15,0x81 Data Acquisition Specifications Using the Flashdisk with Another IDE Drive ConfigurationPower Supply Flashdisk Module23. I/O Panel Board Panel Board Top Side / External Use I/O Connectors Panel Board I/O ConnectorsLocation Type Description USB aJ12 pinout to/from DC/DC power supply Panel Board Power ConnectionsJ3 Pinout J5 USB J9 Pinout InstallationFlash Disk Programmer Board 25.I/O Cables Photo No Cable No DescriptionCable Kit C-PRZ-KIT VGA Accessory Board PL5 pin no PL5 Signal J25 pin no J25 SignalPL5 pin no DB15F pin no Signal Mounting Prometheus on a Baseboard Prometheus Connector Manufacturer Manufacturer Part NoLinks Website informationPage 28.PC/104 Mechanical Drawing

PR-Z32-E-ST, PR-Z32-EA-ST specifications

The Diamond Systems PR-Z32-EA-ST and PR-Z32-E-ST are pioneering solutions in the realm of embedded computing systems, designed to meet the challenging demands of various industrial applications. These boards harness advanced technologies and a comprehensive feature set to ensure exceptional performance, flexibility, and reliability.

At the heart of the PR-Z32 series is a robust processor architecture that combines efficiency with processing power. The systems are built around the Zynq-7000 SoC (System on Chip), which integrates a dual-core ARM Cortex-A9 processor with Xilinx FPGA technology. This hybrid architecture provides the ability to run complex algorithms and custom logic concurrently, making the boards ideal for applications requiring intense computational tasks such as image processing, data acquisition, and real-time control.

One of the main features of the PR-Z32-EA-ST and PR-Z32-E-ST is their versatility. Both variants support a wide range of I/O options, including USB, Ethernet, CAN, and serial interfaces. This range of connectivity allows for integrations with various sensors, actuators, and other peripheral devices, making it suitable for industrial automation, robotics, and IoT projects. The inclusion of multiple GPIO pins also enhances the capability of the boards to interface with additional hardware.

In terms of performance, the PR-Z32 series supports substantial amounts of on-board memory, which can be essential for applications requiring the storage and processing of large datasets. The configurations are often customizable, allowing users to select the appropriate amount of RAM and on-board flash memory for their specific applications.

Reliability is a critical characteristic of the Diamond Systems PR-Z32 series. The boards are built to withstand adverse environmental conditions, making them suitable for deployment in industrial environments. They are often designed to operate over a wide temperature range, ensuring functionality in both hot and cold climates. Additionally, the boards are compliant with various industry standards, assuring users of their robustness and durability.

Moreover, the PR-Z32-EA-ST and PR-Z32-E-ST support real-time operating systems (RTOS) and conventional operating systems such as Linux. This support provides developers with the flexibility to choose the best environment for their applications, whether they require real-time performance or full-fledged operating system features.

In conclusion, the Diamond Systems PR-Z32-EA-ST and PR-Z32-E-ST are formidable options for those seeking powerful, versatile, and reliable embedded computing solutions. With their advanced SoC architecture, flexible I/O options, extensive memory configurations, and environmental resilience, these boards are well-equipped to tackle the challenges of modern industrial applications.
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