STMicroelectronics DK900-HC11-220

Overview

DK900-HC11-220 from STMicroelectronics is a 220V-powered development kit for the PSD9xxF family of Flash Programmable System Devices (PSDs), integrating an 8032-compatible MCU, on-board LCD display, JTAG ISP port, UART IAP interface, and FlashLINK programmer. It supports dual-mode programming-JTAG-based In-System Programming (ISP) and MCU-driven In-Application Programming (IAP)-with preconfigured demo firmware for immediate validation of field-upgradable flash architecture in embedded control systems.

For engineers reviewing the DK900-HC11-220 datasheet, DK900-HC11-220 pinout, DK900-HC11-220 application, or DK900-HC11-220 equivalent, this kit serves as a complete, low-cost evaluation platform for PSD913F2 and PSD934F2 flash PSDs-enabling rapid prototyping of boot-loader architectures, memory-mapped peripheral integration, and UART-based firmware updates without external debug hardware.

Technical Context

The DK900-HC11-220 implements a hardware-software co-design environment where the onboard 8032 MCU executes IAP routines while the PSD9xxF device manages dual independent flash arrays (MAIN and BOOT) with configurable PLD logic and SRAM. Its JTAG interface complies with IEEE 1149.1 and operates independently of MCU execution state.

UART communication uses a null-modem serial cable at 19.2 kbaud to trigger erase/write operations in the inactive flash bank, enabling seamless firmware swaps during runtime. The board's jumper-configurable settings support multiple 8051-family MCUs (8032, 80251, P51XA) and optional SRAM expansion via 62256/68257 sockets.

Key Specifications

Availability

DK900-HC11-220 is available at Aetrix Electronics and suitable for industrial HMI prototyping, embedded bootloader development, and flash-based programmable logic evaluation requiring stable component supply and full toolchain continuity.

Supply support for DK900-HC11-220 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader specializing in microcontrollers, power management, and programmable system devices for industrial, automotive, and consumer applications.

The DK900-HC11-220 belongs to ST's PSD development tools product line, designed specifically to accelerate adoption of its Flash PSD architecture-enabling integrated memory, logic, and microcontroller interfacing in single-chip system solutions.

FAQ

Is DK900-HC11-220 compatible with modern Windows operating systems?

No-DK900-HC11-220 software tools (PSDsoft Express and PSDload) were validated only for Windows 95/98/NT. They are not natively compatible with Windows 10/11 due to parallel-port driver dependencies and 16-bit subsystem limitations. Virtual machine or legacy hardware is required for full functionality.

What PSD devices are physically socketed and tested on DK900-HC11-220?

The DK900-HC11-220 ships with a blank PSD9xxF device installed in its PLCC-84 socket-specifically qualified for PSD913F2 and PSD934F2 variants. These devices feature dual flash banks, integrated PLD logic, and configurable SRAM, all accessible via JTAG ISP and UART IAP as documented in ST's DK900 User Manual Rev 1.10.

Can the DK900-HC11-220 be used without the FlashLINK programmer?

Yes-for In-Application Programming (IAP) only. The FlashLINK JTAG programmer is mandatory for initial device programming (ISP), but once configured, the DK900-HC11-220 supports field firmware updates entirely over UART using PSDload, with no JTAG hardware required during IAP operation.

Does DK900-HC11-220 support CAN or Ethernet-based IAP?

No-the DK900-HC11-220 implements UART-only IAP via its RS-232 port. While ST's PSD9xxF architecture *supports* CAN/Ethernet IAP in custom designs (as noted in the manual), the DK900-HC11-220 board lacks CAN transceivers, Ethernet PHY, or associated routing; only UART-based IAP is implemented and verified on this kit.