ST Manuals

This application note describes a software implementation of a Universal Asynchronous Receiver/Transmitter (UART) that can be used on devices, like the ST7LITE0, with no on-chip SCI peripheral. In this example, a software UART is implemented for the ST7FLITE0, using the 12-bit Autoreload timer and two I/O ports for asynchronous receive and transmit. The UART software provides features such as half-duplex operation, asynchronous operation, flexible data formats (7 or 8 data bits, 1 or 2 stop bits), and baud rates ranging from 2400 to 19200 baud. The interrupt-driven software UART can be tested using the Hyperterminal application on a Windows PC. The program code is small (357 bytes) and can be easily adapted to specific application requirements.

This application note provides an overview of ST microcontrollers' EMC features and compliance standards to help application designers achieve optimum EMC performance.

AN1713 application note describes how to implement SMBus slave protocol using ST7 I2C

The purpose of this document is to explain the different ADC errors and the techniques that application developers can use to minimise them. The ADC (Analog to Digital Converter) is an important peripheral that connects the analog world to the digital world of microcontrollers.

ST7FLITE0 is a low-end 8-bit MCU with many cost-saving features and it comes with low-cost tools, providing a complete package to reduce both design and final application costs to the absolute minimum.

This application note lists the modifications that occur when the file is processed by NEWGET

This Application Note describes how to use the ST7262 or ST7263B for 16-bit timing operations. The intention of this document is to show how to perform pulse measurement and PWM generation using the different timers available on each microcontroller type.

This application note investigates the power consumption during the operation of a typical application which puts the MCU (ST7Lite0) in HALT mode and wakes it up at regular intervals by an external interrupt generated by an active RC circuit. It also lists the typical consumption values and the parameters on which this consumption depends. The internal Pull up (Rpu) of an I/O port is used for the active RC to minimise the number of external components. The value of the Rpu varies with the supply voltage of the MCU and with temperature. Externally, only one capacitor is used. The ST7LITE0 clock source is configured by option byte to be internal RC with PLL*8. All measurements are taken at ambient temperature.

AN1633 APPLICATION NOTE DEVICE FIRMWARE UPGRADE (DFU) IMPLEMENTATION IN NON-USB APPLICATIONS

AN1603 is an application note about ST7 USB DFU PC development kit (DFU-DK), introducing the software architecture, programming interface and usage of the kit.

This application note presents the implementation of a Device Firmware Upgrade (DFU) capability in ST7 USB microcontrollers. It follows the DFU class specification defined by the USB Implementers Forum, for reprogramming an application through USB. The DFU principle is particularly well suited to USB applications that require need to be reprogrammed in the field: The same USB connector can be used both for the standard operating mode, and for the reprogramming process. This operation is made possible by the IAP capability featured by most of the ST7 microcontrollers, which allows a FLASH MCU to be reprogrammed by any communication channel. The DFU process, like any other IAP process, is based on the execution of firmware located in Sector 0 of the ST7 Flash memory which manage the Flash operations (erasing and programming) of Sectors 1 and 2. This application note covers then two main aspects: The firmware located in Sector 0, The Interface between the firmware in Sector 0 and the firmware in Sectors 1 & 2. The proposed implementation is demonstrated with 2 different projects: the USB Low-Speed devices Evaluation Kit and the ST7265 Full-Speed 5-in-1 demoboard. In this document these projects are referred to as “LS project” and “FS project”. A basic DFU protocol is also introduced.

The In-Application Programming (IAP) drivers provided by STMicroelectronics allow for flexible communication methods and protocols for reprogramming ST7 FLASH microcontrollers.

This document presents guidelines for upgrading from the ST92F120 (0.50µm) to the ST92F124/F150/F250 (0.35µm). Microcontrollers for embedded applications are integrating more peripherals and larger memories. Shrinking the microcontroller die size is necessary to provide the right products with the right features at the right cost. The purpose of this document is to highlight the differences between the ST92F120 (0.50µm) and ST92F124/F150/F250 (0.35µm) microcontrollers and provide guidelines for upgrading the application's software and hardware.

This document provides an sufficiently accurate description of the testflash content to allow the user to access to the different parameters and routines included in the testflash

Extending the current & voltage capability on the ST7265 VDDF supply