The AT89C51ED2 pro- vides bytes of EEPROM for nonvolatile data storage . In addition, the AT89C51RD2/ED2 has a Programmable Counter Array. AT89C51EDCSIM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 80C31 w/4k datasheet, inventory, & pricing. AT89C51ED2-SLSUM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 64kB Flash B RAM VV datasheet, inventory, & pricing.
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I do not see this higher up Erik.
So the Atmel bootloader tries to run at address Fh. So it may be possible that this can be accomplished with FLIP. Selecting external vs internal flash Robert Wey The pin is!
Is there an elegant solution?
Selecting external vs internal flash Alexandra Carey That’s what the data sheet says. I must have slept well last night: Selecting external vs internal flash Walt Conley Try putting a zero in front of your Fh. At895c1ed2 Author erik malund Posted 4-Dec Indeed, I know, I use this chip.
Thanks for being patient — I’m new at this and want to double-check everything before I make a huge ass of myself. Selecting external vs internal flash Oleg Sergeev hi, it seems, my English is so bad that nobody understands what I said.
Maybe just due typpo. Also be sure to read the posts above about software programming of the BLJB. AT89C51 ED2 has this bit!
Read-Only Author erik malund Posted 7-Dec If this is not an SFR bit, then perhaps its something you set with an option in a device programmer? My understanding is that, at this point, the processor tries to execute instruction at address Fh on the external PEROM, thinking it’s running the bootloader. Selecting external vs internal flash J Guy FC03 is wrong.
Selecting external vs internal flash erik malund No need to repeat yourself repeat???
Selecting external vs internal flash erik malund FC03 is wrong. That may eliminate the error. The BLBJ bit is by default 0. Selecting external vs internal flash Alexandra Carey Oh.
Am I correct that this is what is happening? I indicated that original poster has used part name “AT89C51” in the body of the message. The correct address is F, according to my data sheet.