7.2BIOS Download / Recovery

Because the BIOS is stored in reprogrammable Flash memory, it is possible that the BIOS could be accidentally erased when trying to write other files into the Flash. To recover from this situation the CPU chip on Prometheus contains a special failsafe Boot-Up ROM (BUR) that can be activated on power-up. A Diamond Systems software utility is provided to enable system recovery by downloading the BIOS to the flash memory through serial port COM1 when the CPU is booted up to the BUR.

The recovery procedure requires another PC running Windows 95, or Windows 98. This host machine is connected to the Prometheus CPU using a null modem serial cable connected to COM1 on each computer. Three files are required on the host PC: Zftrm.exe, Loadbios.com, and the file containing the BIOS, Prm1.rom. These files should be in the same directory.

PC Serial Port End (DB-9)

Prometheus COM1 end

Corresponding pin on J6

2

(RX)

3

(TX)

2

(TX)

3

(TX)

2

(RX)

1

(RX)

5

(Ground)

5

(Ground)

3

(Ground)

 

Null modem cable required pinout

 

To boot up the Prometheus CPU to BUR, set the jumper on J6 on Prometheus to the BUR position. If using the Panel I/O board, press the Link switch while powering up or resetting the computer. The link switch must be held down slightly longer than the reset switch is released in order to power up to the BUR. When the Prometheus CPU boots up you will see the BUR display in the terminal program. The required communication parameters are 9600, n, 8, 1.

Now run the accompanying batch file recover.bat to begin the process. This batch file executes the following command:

zftrm.exe loadbios.com prm1.rom

Each flash manufacturer utilizes a different programming protocol. Zfterm.exe knows about AMD and Atmel parts, which are used on Prometheus boards. If the software cannot recognize the flash device as an AMD or Atmel part then the CPU might have a hardware problem, or else the program is an old version and needs to be upgraded. If this is the case, the software will exit with a message indicating that the device is not supported. Contact Diamond Systems technical support for further assistance.

After the software recognizes the device, it first completely erases the flash chip. This might take up to 90 seconds. After the chip is erased the software reports “Flash Erased” and then starts downloading the BIOS image from the host and programming the chip. To completely download and reprogram the BIOS takes several minutes. While this happens characters are continuously scrolled across the screen of the host PC. It is recommended that no other applications or tasks be running on the host PC during this time.

When the device is completely reprogrammed with the BIOS, the host will report the completion and the program will terminate. The Prometheus CPU is now ready to reboot in normal mode. Remove the null modem cable, and return the jumper on J6 to its default position.

Prometheus CPU User Manual V1.44

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Diamond Systems PR-Z32-E-ST, PR-Z32-EA-ST user manual Bios Download / Recovery
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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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