December 2012

Doc ID 15433 Rev 9

1/28

PM0054

Programming manual

How to program STM8L and STM8AL Flash program memory

and data EEPROM

Introduction

This manual describes how to program Flash program memory and data EEPROM on

STM8 microcontrollers. It applies to low density STM8L05x/15x/STM8L101x, medium and

medium+ density STM8L05x/15x, high density STM8L05x/15x/16x, medium density

STM8AL31xx and STM8AL3Lxx devices. It is intended to provide information for

programming tool manufacturers and for customers who want to implement programming

themselves on their production line.

The in-circuit programming (ICP) method is used to update the content of Flash program

memory and data EEPROM while the user software is not running. It uses the single wire

interface module (SWIM) to communicate between the programming tool and the device.

In contrast to the ICP method, in-application programming (IAP) can use any

CAN...). IAP has been implemented for users who want their application software to update

itself by re-programming the Flash program memory during program execution. The main

advantage of IAP is its ability to re-program Flash program memory and data EEPROM

when the chip has already been soldered on the application board and while the user

software is running. Nevertheless, part of the Flash program memory has to be previously

programmed using ICP.

Some devices also contain a bootloader embedded in a ROM memory. Through this

firmware the device memory can be re-programmed using a standard communication

interface. This programming method is not described in this document.

For details on memory implementation and features, registers or stack top addresses, refer

to the product datasheets.

Table 1.

Applicable products

Type

Part numbers

Microcontrollers

STM8L051F3

STM8L052C6/STM8L052R8

STM8L101x1/STM8L101x2/STM8L101x3

STM8L151x2/STM8L151x3/STM8L151x4/STM8L151x6/STM8L151x8

STM8L152x4/STM8L152x6/STM8L152x8

STM8L162x8

STM8AL313x, STM8AL314x, STM8AL316x, STM8AL3L4x, STM8AL3L6x

www.st.com