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Forum: µC & Digital Electronics Micros that ship with boot loaders and flash serially


Author: Dan L. (Company: personal) (jdlaton)
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I'm hoping to identify more micros similar to Atmel AT89C51cc003 - by 
this I mean micros that ship with a boot loader and can be programmed 
serially via CAN/LIN/ASYN with a single pin selection (PSEN)

or micros like the zilog Z8 that can be programmed and debugged with 
just GND and DBG

BUT - in automotive grade.

Thanks

: Moved by Admin
Author: 8051er (Guest)
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Dan L. wrote:
> I'm hoping to identify more micros similar to Atmel AT89C51cc003

Yes, we are hoping that too!

> Thanks

De nada!

Author: stefanus (Guest)
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Many STM32 devices can be programmed via CAN.
All of them can be programmed via UART (as far as I know).

Author: Bauform B. (Guest)
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Dan L. wrote:

> or micros like the zilog Z8 that can be programmed and debugged with
> just GND and DBG

The Freescale S12 family uses a single pin plus reset:
5.2 External Signal Description
A single-wire interface pin called the background debug interface
(BKGD) pin is used to communicate with the BDM system. During reset,
this pin is a mode select input which selects between normal and
special modes of operation. After reset, this pin becomes the
dedicated serial interface pin for the background debug mode.

https://www.nxp.com/products/processors-and-microcontrollers/additional-processors-and-mcus/8-16-bit-mcus/16-bit-s12-and-s12x-mcus:S12S12X

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