SAMD20 bootloader - how to access flash

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YogiWannabe
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Posted by YogiWannabe: Mon. Sep 25, 2017 - 08:24 PM
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Hi,

 

I downloaded the SAMD20 BA source code from this link which Lajon provided (thanks Lajon)

 

In the entire project there are only 3 .c files

main.c

sam_ba_monitor.c

usart_sam_ba.c

 

Where are the files which contain code for reading/writing/erasing the flash?

 

thanks for your help.

Yogi

 

 

 

Tags:

Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs
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awneil
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Posted by awneil: Mon. Sep 25, 2017 - 09:50 PM
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YogiWannabe wrote:
I downloaded the SAMD20 BA source code from this link 
 

Really? That link is just datasheets.

 

Did you mean this: http://www.atmel.com/tools/ATMELSAM-BAIN-SYSTEMPROGRAMMER.aspx ?

 

Documents: http://www.atmel.com/tools/ATMELSAM-BAIN-SYSTEMPROGRAMMER.aspx?tab=documents

 

 

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YogiWannabe
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Posted by YogiWannabe: Mon. Sep 25, 2017 - 10:29 PM
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awneil wrote:

YogiWannabe wrote:
I downloaded the SAMD20 BA source code from this link 
 

Really? That link is just datasheets.

 

Did you mean this: http://www.atmel.com/tools/ATMELSAM-BAIN-SYSTEMPROGRAMMER.aspx ?

 

Documents: http://www.atmel.com/tools/ATMELSAM-BAIN-SYSTEMPROGRAMMER.aspx?tab=documents

 

 

 

When using my link, you have to select 'Application Notes ' in the combo box.

 

I downloaded the code from the link that you gave. It has the top level user app that uses different interfaces to send commands to the bootloader. What I really need is the bootloader code that does the actual erase/write/read of the Flash in the SAMD20 chip so I can update the FW. Do you know where I can find that code?

 

thanks for your help

Yogi

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Lajon
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Posted by Lajon: Tue. Sep 26, 2017 - 08:37 AM
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Check here
https://community.atmel.com/foru...

/Lars

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