STMicroelectronics Manuals

This application note describes how to use the ST7 USB Low-Speed Library V4.2x. The library provides a complete USB protocol layer for ST7 USB Low-Speed microcontrollers (such as ST7261, ST7262, ST7263, and ST7263B).

This application note describes the Direct Memory Access (DMA) using the ST10 processor with MAC. The MAC is used for address generation in external memory-external memory transfers. The article also provides the machine code for memory transfers between external memory and ST10 internal memory. It introduces the long addressing mode of ST10, as well as the special MAC instructions and new addressing modes.

This note describes a technique for driving Liquid Crystal Displays (LCD) with any standard ST7 Microcontroller (MCU) i.e without any specific on-chip LCD driver hardware. This technique offers a solution for applications which require a display at low cost together with the versatile capabilities of the standard ST7 MCUs. This note also provides a technique to control the LCD contrast through software.

This application note describes how to implement an I2C communication software interface for devices without an I2C peripheral. The software can perform I2C master transmitter and master receiver functions. The master chosen here is a ST72324 and the slave is an EEPROM (M24C08).

The goal of this application note is to present a software technique for determining if data and program in FLASH have been corrupted and if so not to run the user program. The program described in this application note has been written for the ST72F26x family (ST72260G1, ST72262G1, ST72262G2, ST72264G1, ST72264G2) but can be extended to all other ST7 MCUs. In this application, we chose to use a ST72264G2.

This application note presents an example of communication using the ST7 I2C peripheral in slave mode. The ST7 microcontroller is used as a slave and can communicate with any master. This slave, through the I2C interface, receives data bytes from the master implementing error management and returns them. This application has been realized with a ST72264,7-bit, general call and 10-bit addressing mode.

The goal of this application note is to present an example of the use of the HALT mode. In this application, the MCU (here a ST72F264) is waked up by an external interrupt caused by someone pressed a key on the 4x4 matrixed keypad.

This application note describes how to implement Serial Test Controller Programming targeting most of the ST7 general purpose microcontrollers.

The goal of this application note is to present a standard example of the use of the Analog to Digital Converter (ADC) of the ST7. In this note, the ADC is used to convert a 16-key analog keyboard. The technique for the keyboard is to connect the keys by resistive dividers to one of the converter inputs. The Application note is based on ST72F324 which has an embedded 10-bit ADC.

This application note presents how to use the ST7 Timer output compare function to generate a real time clock with counters for seconds, minutes and hours, based on a fixed basic time base.

This document introduces the implementation method of software SPI master communication and provides a hardware implementation scheme based on ST72251.

It shows a basic single master communication between a ST7 mi- crocontroller and an M24Cxx I2C bus EEPROM

This application note provides an example of communication using the SPI peripheral of the ST7. It shows an easy way of communicating between a ST7 microcontroller and a M95xxx SPI EEPROM. The purpose is to perform, through SPI, a write in the memory, followed by a read of the written data.

AN969 is an application note about the standard communication interface between a ST7 microcontroller and a PC. It includes the features of SCI communication and baud rate configuration.