STMicroelectronics STEVAL-IDC001V1

Overview

STEVAL-IDC001V1 from STMicroelectronics is an evaluation board designed to support in-circuit programming and debugging of ST7 Flash microcontrollers via the In-Circuit Communication (ICC) interface. It enables ICP (In-Circuit Programming), IAP (In-Application Programming), and ICD (In-Circuit Debugging) for ST7 devices using XFlash and HDFlash technologies, with support for 35- and 38-pulse ICC mode entry, external clock synchronization, and system memory access at addresses such as 0xF98Bh (ST7FLITE0) or 0xDF2Bh (ST7FLITE2). It is used in firmware development labs for automotive body control modules and industrial sensor node prototyping.

For engineers reviewing the STEVAL-IDC001V1 datasheet, STEVAL-IDC001V1 pinout, STEVAL-IDC001V1 application, or STEVAL-IDC001V1 equivalent, this page provides verified ICC timing parameters, supported ST7 device families (e.g., ST7FLITE2, ST72F34x, ST72F63Bx), pulse-count requirements per device, reset synchronization methods, and system memory address mapping - all essential for reliable Flash programming setup and debug session initialization.

Technical Context

The STEVAL-IDC001V1 implements hardware-level ICC protocol compliance for ST7 microcontrollers, generating precise 35- or 38-pulse sequences on ICCDATA/ICCCLK lines with configurable timing windows (t_su(pulse) = 50 µs + 128 t_CPU, t_th(pulse) = 50 µs + 384 t_CPU). It supports both external clock mode (bypassing option byte configuration) and application clock mode (honoring option byte settings except watchdog).

It interfaces directly with ST7 RESET, ICCSEL/VPP, ICCCLK, and ICCDATA pins, and accommodates variant entry mechanisms - including TM-pin-controlled entry for ST7SCR (no external RESET), and VIT+-threshold-synchronized startup requiring analog comparator circuitry. System memory access is enabled at fixed addresses per device family (e.g., 0xBF2Bh for ST72F34x).

Key Specifications

Availability

STEVAL-IDC001V1 is available at Aetrix Electronics and suitable for ST7 Flash microcontroller firmware development, production programming validation, and ICD tool qualification requiring stable component supply, consistent ICC timing compliance, and traceable legacy ST product support.

Supply support for STEVAL-IDC001V1 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 headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management devices, and MEMS sensors for industrial, automotive, and consumer applications.

The STEVAL-IDC001V1 belongs to ST's ST7 evaluation and programming tools product line, developed specifically to enable standardized, repeatable Flash programming and debug workflows across the ST7 Flash microcontroller family - particularly where legacy ICC-based toolchains remain in use.

FAQ

What ST7 microcontrollers are supported by STEVAL-IDC001V1?

STEVAL-IDC001V1 supports ST7 devices with XFlash (e.g., ST7FLITE2, ST72F34x) and HDFlash (e.g., ST72F63Bx, ST72F65) technologies. It does not support CFlash-based ST72Cxxx devices. Support is confirmed for 35- and 38-pulse ICC mode entry, system memory access, and ICP/IAP/ICD functionality per PM0018 Rev 6 documentation.

How does STEVAL-IDC001V1 handle ICC mode entry for ST7SCR without a RESET pin?

For ST7SCR, STEVAL-IDC001V1 requires external synchronization using a 3.8 V threshold comparator on VIT+, with startup delay t_STARTUP between 50 µs + 128 t_CPU and 50 µs + 384 t_CPU. This replaces RESET-based synchronization and is mandatory because ST7SCR lacks an external RESET pin - as specified in Appendix A of PM0018.

Does STEVAL-IDC001V1 provide power to the target ST7 device?

No. STEVAL-IDC001V1 operates from a single 5 V supply but does not regulate or deliver power to the target ST7 microcontroller. It assumes the target board supplies its own VDD and ground. The board routes only ICC signals (ICCCLK, ICCDATA, ICCSEL/VPP, RESET) and shares common ground.

Can STEVAL-IDC001V1 be used for production programming?

Yes - STEVAL-IDC001V1 is qualified for production ICP (In-Circuit Programming) when integrated into automated handlers or benchtop programmers. Its deterministic pulse generation, documented timing margins, and compatibility with ST's official ICC protocol reference manual make it suitable for high-reliability Flash programming in manufacturing test environments.