Knowing inbuit UART bootloader for some IC

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Dear friends,

 

How to know the facility with MCU having inbuit UART bootloader. 

ATmega324PA

ATmega328P

and I also wanted to know the PIC controllers inbuit UART bootloader facility for

PIC16F877 

PIC16(L)F18875

 

As I dont have the personal JTAG debugger so while purchase of IC, I need to know this fact.

Kindly tell me how to know this from datasheets of above ICs.

 

OR is there any option so that I can downlaod UART bootloader once and use it.

and where to get that bootloader?

 

Thanks in advance as you always helped in solving problems.

 

  

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Last Edited: Tue. Mar 12, 2019 - 03:50 PM
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Apart from USB chips no AVR come with bootloader as standard.

 

HOWEVER there's this thing called "Arduino". All Arduino have bootloader and some enterprising folks sell "Arduino chips" (mainly ATmega328P) with the bootloader already installed. So you might want to look for folks selling mega328P with "Optiboot already loaded.

 

This is, though, that you can actually buy whole Arudinos for less than you can buy the chips (strange but true!) so actually, if you want a system to develop for AVR that does not require a p[rogrammer/debugger it might be best to simply spend $5 on an Arudino board from ebay.

 

Of course yet another option is simply to buy a USbAsp (and some blank AVRs). A USBAsp should be about $2 from ebay. It will ISP program most mega (and most Tiny) AVRs

 

Thinking about it, a $5 Arduino really is the best starting point (oh and you don't HAVE to use the Arduino programming system (IDE+libraries) just because you buy the $5 board - it can be used with all kinds of other development environments.

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What about PIC controllers and is there any community like Arduino for PIC controllers?

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Microchip only recently bought Atmel so for decades this site and https://www.microchip.com/forums/ ran completely independently (in fact competitors!). That site is still the best place to discuss PIC controllers.

 

The one thing that is causing things to merge a little is that Microchip are trying to arrange for the same interfaces and same IDE to be used for both PIC and AVR so in time some of the AVR discussion will likely take place at the above site (as it already is for the AVR use of MPLABX).