STM32L475RC Bootloader

[Bence Kovari]

Posted on March 23, 2017 at 16:44

Hi! I've just recently checked 

http://www.st.com/content/ccc/resource/technical/document/application_note/b9/9b/16/3a/12/1e/40/0c/CD00167594.pdf/files/CD00167594.pdf/jcr:content/translations/en.CD00167594.pdf

that is a document summarizing STM32 devices bootloader features, requirements etc. I have not found STM32L475xx series listed in the document, however the document lists STM32L476xx. As i see the only difference between the two device lines is the LCD support for L476xx. I have an assumption that the bootloader features might be the same for L475xx. Nevertheless, it's still strange that it is not listed or provided any bootloader information for L475xx devices.

What do you think? Waiting for your answers, ideas!

Thanks in advance:

Bence Kovari

[Montassar BEN ROMDHANE_O]

Posted on March 24, 2017 at 10:36

Hi

bkovari

‌,

Thanks for the feedback. We’ve noted this as a missed item on the AN2606 rev

You can refer to the

http://www.st.com/content/ccc/resource/technical/document/application_note/b9/9b/16/3a/12/1e/40/0c/CD001675pdf/files/CD001675pdf/jcr:content/translations/en.CD001675pdf

, already available on ST website.

Regards,

Montassar.

[Bence Kovari]

Posted on March 26, 2017 at 16:44

Thank you for your answer, i have now what i've wanted  There is one more thing left. This document says there are 2 different bootloader versions for STM32L47xx/48xx:

'Two bootloader versions are available on STM32L47xxx/48xxx:

• V10.x supporting USART, I2C and DFU (USB FS Device). This version is embedded in STM32L47xxx/48xxx rev. 2 and rev. 3 devices.

•V9.x supporting USART, I2C, SPI, CAN and DFU (USB FS Device). This version is embedded in STM32L47xxx/48xxx rev. 4 devices.'

I can not find whether my STM32L475RC is rev2,3 or 4 device. Any idea?

Thanks in advance:

Bence Kovari

[Imen.D]

Posted on March 26, 2017 at 18:13

Hi Bence Kovari,

Have a look to the

http://www.st.com/content/ccc/resource/technical/document/errata_sheet/f9/fb/91/0c/12/33/46/55/DM00181978.pdf/files/DM00181978.pdf/jcr:content/translations/en.DM00181978.pdf

related to your device for more clarification about the revision.

Imen