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STM8S闪存和EEPROM存储器编程手册.pdf

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PM0051 Programmingmanual HowtoprogramFlashprogrammemoryanddataEEPROM onSTM8Smicrocontrollerfamily Introduction ThismanualdescribeshowtoprogramFlashprogrammemoryanddataEEPROMon STM8microcontrollers.ItappliestoSTM8Saccessandperformancelinefamiliesof devices.Itisintendedtoprovideinformationtotheprogrammingtoolmanufacturersandto thecustomerswhowanttoimplementprogrammingbythemselvesontheirproductionline. Thein-circuitprogramming(ICP)methodisusedtoupdatethecontentofFlashprogram memoryanddataEEPROMwhiletheusersoftwareisnotrunning.ItusestheSingleWire interfaceModule(SWIM)tocommunicatebetweentheprogrammingtoolandthedevice. IncontrasttotheICPmethod,in-applicationprogramming(IAP)canuseany communicationinterfacesupportedbythemicrocontroller(I/Os,SPI,USART,SCI,USB, CAN...).IAPhasbeenimplementedforuserswhowanttheirapplicationsoftwaretoupdate itselfbyre-programmingtheFlashprogrammemoryduringprogramexecution.Themain advantageofIAPisitsabilitytore-programFlashprogrammemoryanddataEEPROM whenthechiphasalreadybeensolderedontheapplicationboardandwhiletheuser softwareisrunning.Nevertheless,partoftheFlashprogrammemoryhastobepreviously programmedusingICP. SomeSTM8SdevicesalsocontainsabootloaderembeddedinaROMmemory.Through thisfirmwarethedevicememorycanbere-programmedusingastandardcommunication interface.Thisprogrammingmethodisnotdescribedinthisdocument. Fordetailsonmemoryimplementationandfeatures,registersorstacktopaddresses,refer totheproductdatasheets. Relateddocument ●STM8SWIMcommunicationprotocolanddebugmodule(UM0470) ●STM8bootloaderusermanual(UM0500) ●STM8Smicrocontrollerfamilyreferencemanual(RM0016) ●InapplicationprogrammingexampleusingaPChostadapterwiththeSTM8I2Cand SPIperipherals(AN2737) ●STM8S20xxxperformancelinedatasheet(Flashprogrammemorydensityfrom32to 128Kbytes) ●STM8S10xxxaccesslinedatasheets(Flashprogrammemorydensityfrom8Kbytesto 32Kbytes) February2009Rev11/24 www.st.com ContentsPM0051 Contents 1Glossary...................................................4 2Memory