SkyLiCoder
88702e2832
- Add .dma_buf section in RAM_D1 for DMA-accessible USART instance pool. DTCM (0x20000000) is not reachable by DMA on STM32H7, causing bus errors (TE) when DMA writes to malloc'd buffers placed in DTCM by the XG linker script. - Replace malloc with static pool (usart_pool[]) placed in .dma_buf section. - In RxEventCallback, set recv_buff_size from Size so module callbacks know how many bytes were actually received. - Use USART_RXBUFF_LIMIT (256) as the DMA transfer size instead of per-module recv_buff_size. The actual buffer is always 256 bytes. - Remove recv_buff_size from USART_Init_Config_s; it is now set at runtime. - Flush RDR, clear error flags, and clear stale DMAR in error callback to prevent residual conditions from re-triggering errors on DMA restart. - Switch Vision module from UART10 to UART1.
262 lines
8.7 KiB
Plaintext
262 lines
8.7 KiB
Plaintext
/*
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******************************************************************************
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**
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** File : LinkerScript.ld
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**
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** Author : STM32CubeMX
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**
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** Abstract : Linker script for STM32H723VGTx series
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** 1024Kbytes FLASH and 560Kbytes RAM
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**
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** Set heap size, stack size and stack location according
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** to application requirements.
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**
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** Set memory bank area and size if external memory is used.
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**
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** Target : STMicroelectronics STM32
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**
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** Distribution: The file is distributed “as is,” without any warranty
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** of any kind.
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**
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*****************************************************************************
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** @attention
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**
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** <h2><center>© COPYRIGHT(c) 2025 STMicroelectronics</center></h2>
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**
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** Redistribution and use in source and binary forms, with or without modification,
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** are permitted provided that the following conditions are met:
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** 1. Redistributions of source code must retain the above copyright notice,
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** this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright notice,
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** this list of conditions and the following disclaimer in the documentation
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** and/or other materials provided with the distribution.
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** 3. Neither the name of STMicroelectronics nor the names of its contributors
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** may be used to endorse or promote products derived from this software
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** without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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*****************************************************************************
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*/
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/* Entry Point */
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ENTRY(Reset_Handler)
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/* Specify the memory areas */
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MEMORY
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{
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DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
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RAM_D1 (xrw) : ORIGIN = 0x24000000, LENGTH = 320K
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RAM_D2 (xrw) : ORIGIN = 0x30000000, LENGTH = 32K
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RAM_D3 (xrw) : ORIGIN = 0x38000000, LENGTH = 16K
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ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 64K
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FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K
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}
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/* Highest address of the user mode stack */
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_estack = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM); /* end of RAM */
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_sstack = _estack - _Min_Stack_Size;
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/* Generate a link error if heap and stack don't fit into RAM */
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_Min_Heap_Size = 0x2000; /* required amount of heap */
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_Min_Stack_Size = 0x2000; /* required amount of stack */
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/* Define output sections */
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SECTIONS
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{
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/* The startup code goes first into FLASH */
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.isr_vector :
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{
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. = ALIGN(4);
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KEEP(*(.isr_vector)) /* Startup code */
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. = ALIGN(4);
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} >FLASH
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/* The program code and other data goes into FLASH */
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.text :
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{
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. = ALIGN(4);
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*(.text) /* .text sections (code) */
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*(.text*) /* .text* sections (code) */
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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KEEP (*(.init))
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KEEP (*(.fini))
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. = ALIGN(4);
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_etext = .; /* define a global symbols at end of code */
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} >FLASH
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/* Constant data goes into FLASH */
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.rodata :
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{
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. = ALIGN(4);
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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. = ALIGN(4);
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} >FLASH
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.ARM.extab (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
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{
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. = ALIGN(4);
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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. = ALIGN(4);
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} >FLASH
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.ARM (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
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{
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. = ALIGN(4);
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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. = ALIGN(4);
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} >FLASH
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.preinit_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
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{
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. = ALIGN(4);
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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. = ALIGN(4);
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} >FLASH
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.init_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
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{
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. = ALIGN(4);
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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. = ALIGN(4);
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} >FLASH
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.fini_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
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{
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. = ALIGN(4);
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT(.fini_array.*)))
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KEEP (*(.fini_array*))
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PROVIDE_HIDDEN (__fini_array_end = .);
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. = ALIGN(4);
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} >FLASH
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/* used by the startup to initialize data */
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_sidata = LOADADDR(.data);
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/* Initialized data sections goes into RAM, load LMA copy after code */
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.data :
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{
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. = ALIGN(4);
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_sdata = .; /* create a global symbol at data start */
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*(.data) /* .data sections */
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*(.data*) /* .data* sections */
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*(.RamFunc) /* .RamFunc sections */
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*(.RamFunc*) /* .RamFunc* sections */
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. = ALIGN(4);
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} >DTCMRAM AT> FLASH
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/* Initialized TLS data section */
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.tdata : ALIGN(4)
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{
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*(.tdata .tdata.* .gnu.linkonce.td.*)
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. = ALIGN(4);
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_edata = .; /* define a global symbol at data end */
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PROVIDE(__data_end = .);
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PROVIDE(__tdata_end = .);
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} >DTCMRAM AT> FLASH
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PROVIDE( __tdata_start = ADDR(.tdata) );
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PROVIDE( __tdata_size = __tdata_end - __tdata_start );
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PROVIDE( __data_start = ADDR(.data) );
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PROVIDE( __data_size = __data_end - __data_start );
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PROVIDE( __tdata_source = LOADADDR(.tdata) );
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PROVIDE( __tdata_source_end = LOADADDR(.tdata) + SIZEOF(.tdata) );
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PROVIDE( __tdata_source_size = __tdata_source_end - __tdata_source );
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PROVIDE( __data_source = LOADADDR(.data) );
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PROVIDE( __data_source_end = __tdata_source_end );
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PROVIDE( __data_source_size = __data_source_end - __data_source );
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/* Uninitialized data section */
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.tbss (NOLOAD) : ALIGN(4)
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{
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/* This is used by the startup in order to initialize the .bss secion */
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_sbss = .; /* define a global symbol at bss start */
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__bss_start__ = _sbss;
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*(.tbss .tbss.*)
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. = ALIGN(4);
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PROVIDE( __tbss_end = . );
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} >DTCMRAM
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PROVIDE( __tbss_start = ADDR(.tbss) );
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PROVIDE( __tbss_size = __tbss_end - __tbss_start );
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PROVIDE( __tbss_offset = ADDR(.tbss) - ADDR(.tdata) );
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PROVIDE( __tls_base = __tdata_start );
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PROVIDE( __tls_end = __tbss_end );
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PROVIDE( __tls_size = __tls_end - __tls_base );
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PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
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PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1) );
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PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
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PROVIDE( __arm64_tls_tcb_offset = MAX(16, __tls_align) );
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.bss (NOLOAD) : ALIGN(4)
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{
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = .; /* define a global symbol at bss end */
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__bss_end__ = _ebss;
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PROVIDE( __bss_end = .);
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} >DTCMRAM
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PROVIDE( __non_tls_bss_start = ADDR(.bss) );
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PROVIDE( __bss_start = __tbss_start );
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PROVIDE( __bss_size = __bss_end - __bss_start );
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/* User_heap_stack section, used to check that there is enough RAM left */
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._user_heap_stack (NOLOAD) :
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{
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. = ALIGN(8);
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PROVIDE ( end = . );
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PROVIDE ( _end = . );
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. = . + _Min_Heap_Size;
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. = . + _Min_Stack_Size;
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. = ALIGN(8);
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} >DTCMRAM
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/* DMA-accessible buffers in RAM_D1 (SRAM). DTCM is not reachable by DMA */
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.dma_buf (NOLOAD) :
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{
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. = ALIGN(4);
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*(.dma_buf)
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*(.dma_buf*)
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. = ALIGN(4);
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} >RAM_D1
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/* Remove information from the standard libraries */
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/DISCARD/ :
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{
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libc.a:* ( * )
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libm.a:* ( * )
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libgcc.a:* ( * )
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}
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}
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