Electronics > Microcontrollers

STM32F4xx and core coupled memory: comments?

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techman-001:

--- Quote from: Jope on February 22, 2021, 11:55:57 pm ---
--- Quote from: techman-001 on February 22, 2021, 08:26:35 pm ---It's curious, the datasheet you quote does mention the CCMDATARAMEN bitfield (bit 20) in  RCC_AHB1ENR but it's omitted in all the SVD files I could find for the STM32F4xx series.

--- End quote ---

The current MDK5 software pack for the STM32F4 contains 14 SVD files, but only three contain the CCMDATARAMEN bit.

--- End quote ---

These three from the Keil Pack in fact:


--- Code: ----rw-r--r--  1 tp  tp   912885 27 Aug  2015 STM32F401x.svd
-rw-r--r--  1 tp  tp   912719 14 Jun  2018 STM32F401xE.svd
-rw-r--r--  1 tp  tp  1890267  3 Jan  2017 STM32F40x.svd
-rw-r--r--  1 tp  tp   677446 14 Aug  2015 STM32F410xx.svd
-rw-r--r--  1 tp  tp   913317 14 Jun  2018 STM32F411xx.svd
-rw-r--r--  1 tp  tp  1641378 14 Jun  2018 STM32F412xG.svd
-rw-r--r--  1 tp  tp  1732658  6 Dec  2016 STM32F413.svd
-rw-r--r--  1 tp  tp  2039111 28 May  2015 STM32F41x.svd
-rw-r--r--  1 tp  tp  1964272 11 Dec  2019 STM32F427x.svd
-rw-r--r--  1 tp  tp  2029865 11 Dec  2019 STM32F429x.svd
-rw-r--r--  1 tp  tp  2081471 11 Dec  2019 STM32F437x.svd
-rw-r--r--  1 tp  tp  2217343 11 Dec  2019 STM32F439x.svd
-rw-r--r--  1 tp  tp  1935245 11 Mar  2015 STM32F446x.svd
-rw-r--r--  1 tp  tp  2279134  9 Sep  2015 STM32F46_79x.svd

% grep CCMDATARAMEN *.svd
STM32F429x.svd:              <name>CCMDATARAMEN</name>
STM32F439x.svd:              <name>CCMDATARAMEN</name>
STM32F46_79x.svd:              <name>CCMDATARAMEN</name>
--- End code ---

peter-h:
"I fixed an error in the ST linker script - it stated 192K of RAM in one block"

Having just discovered this... this is a bug in Cube IDE. I am v1.6.1 (which is the current version) but don't know which version the linker script was generated with.

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