8.2Serial Ports

Prometheus contains 4 serial ports. Each port is capable of transmitting at speeds of up to 115.2Kbaud. Ports COM1 and COM2 are built into the ZF Micro CPU chip. They consist of standard 16550 type UARTs with 16-byte FIFOs. Ports COM3 and COM4 are derived from an Exar 16C2850 dual UART chip and include 128-byte FIFOs. Ports 3 and 4 may be operated at speeds up to 1.5Mbaud with installation of high-speed drivers as a custom option.

The serial ports use the following default system resources:

Port

Address range

IRQ

COM1

I/O 3F8 – 3FF

4

COM2

I/O 2F8 – 2FF

3

COM3

I/O 3E8 – 3EF

4

COM4

I/O 2E8 – 2EF

3

The settings of COM1 and COM2 may be changed in the system BIOS. Select the Advanced menu, then I/O Device Configuration. Serial Port A is COM1, and Serial Port B is COM2. The base address and interrupt level may be modified on this page.

The settings of COM3 and COM4 may be changed using a different procedure:

The addresses of these two ports are selected on the Advanced menu of the BIOS. Select Advanced Chipset Control, then ISA I/O Chip Select Setup. I/O Window – io_cs1 is for COM3 and I/O window – io_cs2 is for COM4. The only parameter that may be changed is the address. The other settings must remain in their default values:

Window state:

Enabled

Base Address:

(user selectable)

Read/Write control:

Read/Write

Window data width:

8-bits

Active Level:

Active Low

Window size:

08

After making any desired changes, go to the top-level Exit menu and select Exit Saving Changes.

The interrupt (IRQ) settings for COM3 and COM4 are selected with J10. COM3 may use IRQ4 or IRQ9. COM4 may use IRQ3 or IRQ15. If both serial ports share the same IRQ, they may share IRQ4 or IRQ5. See page 16 for serial port IRQ jumper settings.

8.3Parallel Port

The parallel port (LPT1) is an IEEE-1284 compatible bidirectional port. It includes filtering for reduced EMI operation. It operates in ECP mode (set up in the BIOS). The parallel port has the following default configuration:

Port

Mode

Address range

IRQ

DMA

LPT1

ECP

I/O 378 – 37F

7

3

The parallel port settings may be modified in the BIOS. Select Advanced menu, then I/O Device Configuration. The above four settings may then be modified.

Prometheus CPU User Manual V1.44

Page 27

Page 26 Page 28
Page 27
Image 27
Diamond Systems PR-Z32-E-ST, PR-Z32-EA-ST user manual Serial Ports, Parallel Port
Page 26 Page 28

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.
Top Page Image Contents