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ThiZi
ThiZi
Associate
Nov 15, 2018 11:03 AM UTC
Solved

STM32L4 reference manual usb sram adress discrepancy

Dear Sir or madam,

I would like to report a discrepancy in the reference manual of the stm32l4 series

Quote from 45.6.2 Buffer descriptor table

"The first packet memory location is located at 0x4000 6000"

The package memory for usb is also called usb sram.

In the memory register map (Table 2) the start adress of the usb sram is 0x4006C00

In the HAL lib also 0x4006C00 is used therefore i guess the adress in 45.6.2 is wrong.

Is that right ?

T.Zirni

This topic has been closed for replies.
Imen.DBest answer
ST Technical Moderator
Nov 16, 2018 2:33 PM UTC

Hello @ThiZi​ ,

You are right, the adderss 0x4000 6000 in the "45.6.2 Buffer descriptor table" is wrong.

I raised this typo internally for correction in the coming release of RM0394.

Thanks for bringing this to our attention.

Kind Regards,

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks
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3 replies

Uwe Bonnes
Uwe Bonnes
Chief
Nov 15, 2018 11:45 AM UTC

There are a lot of STM32L4 variants and reference manuals.

Imen.DBest answer
ST Technical Moderator
Nov 16, 2018 2:33 PM UTC

Hello @ThiZi​ ,

You are right, the adderss 0x4000 6000 in the "45.6.2 Buffer descriptor table" is wrong.

I raised this typo internally for correction in the coming release of RM0394.

Thanks for bringing this to our attention.

Kind Regards,

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks
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