[Solved] Linker script: block RAM for variables

[Joerg Wagner]

Posted on October 04, 2017 at 20:09

How do I have to configure the linker script file to block the required space

for Ethernet buffers at 0x24000000?

STM32H743 starts with DTCM at 0x20000000, but Ethernet works in 0x24000000 only.

I want to use the RAM space around for my purpose without losing so much.

In ethernetif.c the buffers are marked with .RxDecripSection, .TxDecripSection, .RxArraySection.

I'm not a linker file specialist to make the right definitions.

Thank you for your help.

[Joerg Wagner]

Posted on October 06, 2017 at 11:16

I modified the linker script file for myself to place ETH descriptors and RX buffer in one SRAM block. It's so much fun so I did it for the UART buffer as well in another SRAM section for DMA transfer. 

[Nesrine M_O]

Posted on October 06, 2017 at 11:22

Hi

Wagner.Joerg

,

https://community.st.com/0D50X00009bMM5DSAW

-Nesrine-

[Joerg Wagner]

Posted on February 07, 2018 at 23:44

Solved with HAL 1.2.0