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feat: Generic variant C071RBTx support
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Fixes #2536

Signed-off-by: thernstig <[email protected]>
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thernstig authored and fpistm committed Nov 12, 2024
1 parent c43d779 commit e581c5c
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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -214,6 +214,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
| :green_heart: | STM32C011J4<br>STM32C011J6 | Generic Board | *2.8.0* | |
| :green_heart: | STM32C031C4<br>STM32C031C6 | Generic Board | *2.5.0* | |
| :green_heart: | STM32C031F4<br>STM32C031F6 | Generic Board | *2.6.0* | |
| :yellow_heart: | STM32C071R8<br>STM32C071RB | Generic Board | **2.9.0** | |

### Generic STM32F0 boards

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16 changes: 16 additions & 0 deletions boards.txt
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Expand Up @@ -1668,6 +1668,22 @@ GenC0.menu.pnum.GENERIC_C031F6PX.build.product_line=STM32C031xx
GenC0.menu.pnum.GENERIC_C031F6PX.build.variant=STM32C0xx/C011D6Y_C011F(4-6)(P-U)_C031F(4-6)P
GenC0.menu.pnum.GENERIC_C031F6PX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd

# Generic C071R8Tx
GenC0.menu.pnum.GENERIC_C071R8TX=Generic C071R8Tx
GenC0.menu.pnum.GENERIC_C071R8TX.upload.maximum_size=65536
GenC0.menu.pnum.GENERIC_C071R8TX.upload.maximum_data_size=24576
GenC0.menu.pnum.GENERIC_C071R8TX.build.board=GENERIC_C071R8TX
GenC0.menu.pnum.GENERIC_C071R8TX.build.product_line=STM32C071xx
GenC0.menu.pnum.GENERIC_C071R8TX.build.variant=STM32C0xx/C071R(8-B)T

# Generic C071RBTx
GenC0.menu.pnum.GENERIC_C071RBTX=Generic C071RBTx
GenC0.menu.pnum.GENERIC_C071RBTX.upload.maximum_size=131072
GenC0.menu.pnum.GENERIC_C071RBTX.upload.maximum_data_size=24576
GenC0.menu.pnum.GENERIC_C071RBTX.build.board=GENERIC_C071RBTX
GenC0.menu.pnum.GENERIC_C071RBTX.build.product_line=STM32C071xx
GenC0.menu.pnum.GENERIC_C071RBTX.build.variant=STM32C0xx/C071R(8-B)T

# Upload menu
GenC0.menu.upload_method.swdMethod=STM32CubeProgrammer (SWD)
GenC0.menu.upload_method.swdMethod.upload.protocol=swd
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29 changes: 27 additions & 2 deletions variants/STM32C0xx/C071R(8-B)T/generic_clock.c
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Expand Up @@ -12,6 +12,7 @@
*/
#if defined(ARDUINO_GENERIC_C071R8TX) || defined(ARDUINO_GENERIC_C071RBTX)
#include "pins_arduino.h"
#include "stm32yyxx_ll_utils.h"

/**
* @brief System Clock Configuration
Expand All @@ -20,8 +21,32 @@
*/
WEAK void SystemClock_Config(void)
{
/* SystemClock_Config can be generated by STM32CubeMX */
#warning "SystemClock_Config() is empty. Default clock at reset is used."
LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);

/* HSI configuration and activation */
LL_RCC_HSI_Enable();
while (LL_RCC_HSI_IsReady() != 1) {
}

LL_RCC_HSI_SetCalibTrimming(64);
LL_RCC_SetHSIDiv(LL_RCC_HSI_DIV_1);
/* Set AHB prescaler*/
LL_RCC_SetAHBPrescaler(LL_RCC_HCLK_DIV_1);

/* Sysclk activation on the HSI */
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI) {
}

/* Set APB1 prescaler*/
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
LL_SetSystemCoreClock(48000000);

/* Update the time base */
if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK) {
Error_Handler();
}
}

#endif /* ARDUINO_GENERIC_* */
187 changes: 187 additions & 0 deletions variants/STM32C0xx/C071R(8-B)T/ldscript.ld
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@@ -0,0 +1,187 @@
/*
******************************************************************************
**
** @file : LinkerScript.ld
**
** @author : Auto-generated by STM32CubeIDE
**
** @brief : Linker script for STM32C071RBTx Device from STM32C0 series
** 128KBytes FLASH
** 24KBytes RAM
**
** Set heap size, stack size and stack location according
** to application requirements.
**
** Set memory bank area and size if external memory is used
**
** Target : STMicroelectronics STM32
**
** Distribution: The file is distributed as is, without any warranty
** of any kind.
**
******************************************************************************
** @attention
**
** Copyright (c) 2024 STMicroelectronics.
** All rights reserved.
**
** This software is licensed under terms that can be found in the LICENSE file
** in the root directory of this software component.
** If no LICENSE file comes with this software, it is provided AS-IS.
**
******************************************************************************
*/

/* Entry Point */
ENTRY(Reset_Handler)

/* Highest address of the user mode stack */
_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */

_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Memories definition */
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE
FLASH (rx) : ORIGIN = 0x8000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
}

/* Sections */
SECTIONS
{
/* The startup code into "FLASH" Rom type memory */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH

/* The program code and other data into "FLASH" Rom type memory */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)

KEEP (*(.init))
KEEP (*(.fini))

. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH

/* Constant data into "FLASH" Rom type memory */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >FLASH

.ARM.extab (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
*(.ARM.extab* .gnu.linkonce.armextab.*)
. = ALIGN(4);
} >FLASH

.ARM (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
. = ALIGN(4);
} >FLASH

.preinit_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
. = ALIGN(4);
} >FLASH

.init_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
. = ALIGN(4);
} >FLASH

.fini_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
{
. = ALIGN(4);
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
. = ALIGN(4);
} >FLASH

/* Used by the startup to initialize data */
_sidata = LOADADDR(.data);

/* Initialized data sections into "RAM" Ram type memory */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
*(.RamFunc) /* .RamFunc sections */
*(.RamFunc*) /* .RamFunc* sections */

. = ALIGN(4);
_edata = .; /* define a global symbol at data end */

} >RAM AT> FLASH

/* Uninitialized data section into "RAM" Ram type memory */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss section */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)

. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM

/* User_heap_stack section, used to check that there is enough "RAM" Ram type memory left */
._user_heap_stack :
{
. = ALIGN(8);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(8);
} >RAM

/* Remove information from the compiler libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}

.ARM.attributes 0 : { *(.ARM.attributes) }
}

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