ChibiOS STM32 with HAL

Datasheet

STM32F072RB, 128 Kbytes Flash, 48 MHz CPU, USB, CAN and CEC functions
STM32F072CB, 128 Kbytes Flash, 48 MHz CPU, USB, CAN and CEC functions
NUCLEO-F072RB

Tutorials

ChibiOS and STM32
From 0 to STM32
Dealing with push-buttons using an STM32
Dealing with LEDs using an STM32
Using STM32 GPIO with ChibiOS PAL Driver
Using STM32 USART with ChibiOS Serial Driver
PWM in hardware with STM32 Timer and ChibiOS
Using STM32 SPI with ChibiOS

Product

ChibiOS/HAL
The OSAL
HAL Features

SDC, abstraction of an SDIO interface to SD/MMC cards. Implements a block interface
MMC/SD over SPI, MMC and SD cards handling on top of the SPI driver. Implements a block interface.

Articles

Articles Start
ChibiOS/HAL Integration Guide

Documentation

Compilation

arm-atollic-eabi-gcc
-c ..\src\chibi\platform\gpt_lld.c
-mthumb
-mcpu=cortex-m0
-std=gnu11
-DCRT1_AREAS_NUMBER=1
-DARM_MATH_CM0
-DSTM32F072B_DISCO
-DSTM32F072RBTx
-DSTM32F0
-DSTM32
-DDEBUG
-DHAL_USE_USB=TRUE
-DHAL_USE_SPI=TRUE
-DHAL_USE_SERIAL=TRUE
-DHAL_USE_ADC=TRUE
-DHAL_USE_UART=FALSE
-DHAL_USE_GPT=TRUE
-DSTM32_GPT_USE_TIM14=TRUE
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\board
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\hal
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\osal
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\platform
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\startup\CMSIS
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\startup\ST
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\startup
-IC:\msys64\home\bachman0\Fluoedema\Firmware\src
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\various
-IC:\msys64\home\bachman0\Fluoedema\Firmware\inc\chibi\lib
-Og
-ffunction-sections
-g3
-fstack-usage
-Wall
-fmessage-length=0
-specs=nano.specs
-o src\chibi\platform\gpt_lld.o

arm-atollic-eabi-gcc
-o chibi_hal_debug.elf
src\cdc.o
src\cfg.o
src\chibi\board\board.o
src\chibi\hal\adc.o
src\chibi\hal\can.o
src\chibi\hal\dac.o
src\chibi\hal\ext.o
src\chibi\hal\gpt.o
src\chibi\hal\hal.o
src\chibi\hal\hal_buffers.o
src\chibi\hal\hal_mmcsd.o
src\chibi\hal\hal_queues.o
src\chibi\hal\i2c.o
src\chibi\hal\i2s.o
src\chibi\hal\icu.o
src\chibi\hal\mac.o
src\chibi\hal\mmc_spi.o
src\chibi\hal\pal.o
src\chibi\hal\pwm.o
src\chibi\hal\rtc.o
src\chibi\hal\sdc.o
src\chibi\hal\serial.o
src\chibi\hal\serial_usb.o
src\chibi\hal\spi.o
src\chibi\hal\st.o
src\chibi\hal\uart.o
src\chibi\hal\usb.o
src\chibi\hal\wdg.o
src\chibi\lib\chprintf.o
src\chibi\lib\memstreams.o
src\chibi\lib\nullstreams.o
src\chibi\osal\osal.o
src\chibi\platform\adc_lld.o
src\chibi\platform\can_lld.o
src\chibi\platform\dac_lld.o
src\chibi\platform\ext_lld.o
src\chibi\platform\ext_lld_isr.o
src\chibi\platform\gpt_lld.o
src\chibi\platform\hal_lld.o
src\chibi\platform\i2c_lld.o
src\chibi\platform\i2s_lld.o
src\chibi\platform\icu_lld.o
src\chibi\platform\nvic.o
src\chibi\platform\pal_lld.o
src\chibi\platform\pwm_lld.o
src\chibi\platform\rtc_lld.o
src\chibi\platform\serial_lld.o
src\chibi\platform\spi_lld.o
src\chibi\platform\st_lld.o
src\chibi\platform\stm32_dma.o
src\chibi\platform\uart_lld.o
src\chibi\platform\usb_lld.o
src\chibi\platform\wdg_lld.o
src\chibi\startup\crt1.o
src\chibi\startup\vectors.o
src\cmd.o
src\debug.o
src\eeprom\eeprom.o
src\eeprom\stm32f0xx_flash.o
src\iad.o
src\ifc.o
src\lym.o
src\main.o
src\que.o
src\ssd\cmds.o
src\ssd\com.o
src\ssd\ssd.o
src\ssd\util.o
src\ugui\ugui.o
src\usbcfg.o
src\vis.o
startup\crt0_v6m.o
startup\sysmem.o
-larm_cortexM0l_math
-lm
-mthumb
-mcpu=cortex-m0
-TC:\msys64\home\bachman0\Fluoedema\Firmware\LinkerScript.ld
-specs=nosys.specs
-static
-LC:\msys64\home\bachman0\Fluoedema\Firmware\bin
-Wl,--defsym=__process_stack_size__=0x000,--defsym=__main_stack_size__=0x800
-u _printf_float
-Wl,-Map=chibi_hal_debug.map
-Wl,--gc-sections
-Wl,--defsym=malloc_getpagesize_P=0x80
-Wl,--start-group -lc -lm -Wl,--end-group
-specs=nano.specs

STM32F072: Linking in SES and Atollic IDE

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STM32F072CB, Mainstream ARM Cortex-M0 USB line MCU with 128 Kbytes Flash, 48 MHz CPU, USB, CAN and CEC functions

Specs

HOWTO Use the GCC specs file
How to set gcc 4.3 default specs file?
Frequently Asked Questions

Studio

Using External GCC
Building with a SEGGER Embedded Studio project file

Wiki

How to use an external toolchain with Embedded Studio

Website

Tool chain and Compiler
Project Management
Performance
SEGGER Linker

Blog

The SEGGER Linker – Replacing the GNU linker
Killer features of the SEGGER linker, or what’s wrong with the GNU linker?

A C Library for embedded applications

Most GCC based projects use Newlib or its smaller version Newlib nano as the standard C Library. Newlib has been created for full-featured computers with lots of memory. Even Newlib nano might require a lot of stack and even heap for functions, such as printf.

Embedded Studio comes with its own standard C Library. The library has been created from scratch, tailored and optimized for embedded applications, to be used on even the smallest micros.

cd C:\msys64\home\bachman0\Fluoedema\Firmware
"C:\Program Files\SEGGER\SEGGER Embedded Studio for ARM 4.12\bin\emBuild.exe" -echo -config "Debug" Fluoedema.emProject
"C:\Program Files\SEGGER\SEGGER Embedded Studio for ARM 4.12\bin\emBuild.exe" -echo -clean -config "Debug" Fluoedema.emProject

4>C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/gcc/arm-none-eabi/bin/cc1
-fmessage-length=0
-fno-diagnostics-show-caret
-mcpu=cortex-m0
-mlittle-endian
-mfloat-abi=soft
-mthumb
-mtp=soft
-mno-unaligned-access
-nostdinc
-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/include
-isystemC:/Users/bachman0/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/include
-IC:/msys64/home/bachman0/Fluoedema/Firmware/src
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/board
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/hal
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/osal
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/platform
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/startup/CMSIS
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/startup/ST
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/startup
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/various
-IC:/msys64/home/bachman0/Fluoedema/Firmware/inc/chibi/lib
-D__SIZEOF_WCHAR_T=4
-D__ARM_ARCH_6M__
-D__SES_ARM
-D__SES_VERSION=41200
-DDEBUG -DCRT1_AREAS_NUMBER=1
-DSTM32F072B_DISCO
-DSTM32F072RBTx
-DSTM32F0
-DSTM32
-DDEBUG
-DHAL_USE_USB=TRUE
-DHAL_USE_SPI=TRUE
-DHAL_USE_SERIAL=TRUE
-DHAL_USE_ADC=TRUE
-DHAL_USE_UART=FALSE
-DHAL_USE_GPT=TRUE
-DSTM32_GPT_USE_TIM14=TRUE
-DHAL_USE_WDG=TRUE
-DSTM32_WDG_USE_IWDG=TRUE
-MD C:/msys64/home/bachman0/Fluoedema/Firmware/Debug/sen.d
-MQ Debug/sen.o
-quiet
-std=gnu99
-g3
-gpubnames
-Og
-fomit-frame-pointer
-fno-dwarf2-cfi-asm
-fno-builtin
-ffunction-sections
-fdata-sections
-fshort-enums
-fno-common
C:\msys64\home\bachman0\Fluoedema\Firmware\src\sen.c
-o C:/msys64/home/bachman0/Fluoedema/Firmware/Debug/sen.asm

4>C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/gcc/arm-none-eabi/bin/as
--traditional-format
-mcpu=cortex-m0
-mlittle-endian
-mfloat-abi=soft
-mthumb
C:/msys64/home/bachman0/Fluoedema/Firmware/Debug/sen.asm
-o Debug/sen.o

undefined reference to __aeabi_read_tp

C:\msys64\home\bachman0\Fluoedema\Firmware>
"C:\Program Files\SEGGER\SEGGER Embedded Studio for ARM 4.12\bin\emBuild.exe" -echo -config "Debug" Fluoedema.emProject

1>C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/gcc/arm-none-eabi/bin/ld
-X
--omagic
-eReset_Handler
--defsym=__vfprintf=__vfprintf_int_nwp
--defsym=__vfscanf=__vfscanf_int
-EL
--gc-sections
-TC:/msys64/home/bachman0/Fluoedema/Firmware/LinkerScript.ld
-Map Output/Debug/Exe/Firmware.map
--defsym=__main_stack_size__=0x600
--defsym=__process_stack_size__=0x000
-u_vectors
-o Output/Debug/Exe/Firmware.elf
--emit-relocs
--start-group
@C:/msys64/home/bachman0/Fluoedema/Firmware/Output/Firmware Debug/Obj/Firmware.ind
--end-group

C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/lib/libc_v6m_t_le_eabi.a(libc2.o):
In function `__aeabi_errno_addr':
libc2.c:(.text.libc.__aeabi_errno_addr+0x2): undefined reference to `__aeabi_read_tp'
There were 1 build errors

cc1

Relationship between cc1 and gcc?
GNU C Compiler Internals/GNU C Compiler Architecture

cc1 -o test.s test.c
from C to ASM!

EABI

github.com/m-labs/uclibc-lm32/blob/master/libc/sysdeps/linux/arm/aeabi_errno_addr.c

_AEABI_PORTABILITY_LEVEL=1

How to use errno in multithread environment?
__aeabi_errno_addr()
caddr_t

syscalls

syscalls.c compilation errors
IMPLEMENTING SYSCALLS FOR LIBC
How to include syscalls.c from a separate library file?

newlib

Getting NewLib and printf to work with the STM32 and Code Sourcery Lite eabi
Using Newlib in ARM bare metal programs
Issue with compling ARM assembly code

arm-none-eabi-as p1.s -o p1.o
arm-none-eabi-gcc -specs=rdimon.specs p1.o -o p1
arm-none-eabi-gcc: error: rdimon.specs: No such file or directory

Linking issues

  GROUP (
"libcr_semihost_nf.a"
"libcr_c.a"
"libcr_eabihelpers.a"
)

-specs=rdimon.specs

Link problem with rdimon.specs
Linker error on a C project using Eclipse

Semihosting

What is semihosting?
What is semihosting?
What is Semihosting?
Semihosting für ARM verwenden

Specs to Linker?

How to pass specs to gcc linker?

ld or gcc

gcc -Wl,linker-option
Options for Linking

ARM Simulator

(gdb) target sim
Undefined target command: "sim".  Try "help target".

./configure --enable-sim

arm-none-eabi-gdb: Undefined target command: “sim”
Guide to using GDB in simulation mode
Does arm-none-eabi-gdb support simulator

STM32 NUCLEO Board Debugging

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Debugging STM32F103RB NUCLEO Board with Segger J-Link
Picos ARM – LPC810 SWD / JTAG with Nucleo STM32

STM32 FatFs / SPIFFS

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FatFs

FatFs – Generic FAT Filesystem Module
FAT filesystem on SD card
STM32 and SD card (FATFS and SPI)

STM32F10x

STSW-STM32054 – STM32F10x standard peripheral library
STM32F10x_StdPeriph_Lib_V3.4.0 » Utilities » STM32_EVAL » Common » stm32_eval_sdio_sd.h
SD_CardInfo Struct Reference
SD Card Interface with STM32F0

STM32Cube_FW_F0_V1.9.0\Drivers\BSP\Adafruit_Shield\stm32_adafruit_sd.c

SPIFFS

github.com/pellepl/stm32_spiffs, STM32 target playground for spiffs
github.com/pellepl/spiffs, Wear-leveled SPI flash file system for embedded devices
github.com/jrsharp/spiffs, Wear-leveled SPI flash file system for embedded devices

TSM_SignProc

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Fouriertransformation, ganz grobe Übersicht, Fourier-Analyse, Unimathematik | Mathe by Daniel Jung

nRF5 SDK: UART

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Understand UART, UARTE and getting it to work with PPI

UART — Universal asynchronous receiver/transmitter
UARTE — Universal asynchronous receiver/transmitter with EasyDMA
Peripheral drivers – UART
Peripheral drivers – UARTE
UART Driver
UART module
Serial port library

nrfx_err_t nrfx_uart_init(nrfx_uart_t const *        p_instance,
                          nrfx_uart_config_t const * p_config,
                          nrfx_uart_event_handler_t  event_handler)
{
    [...]
    apply_config(p_instance, p_config);
    [...]
}

static void apply_config(nrfx_uart_t        const * p_instance,
                         nrfx_uart_config_t const * p_config)
{
    [...]
    /* TXD */
    nrf_gpio_pin_set(p_config->pseltxd);
    nrf_gpio_cfg_output(p_config->pseltxd);
    
    /* RXD */
    nrf_gpio_cfg_input(p_config->pselrxd, NRF_GPIO_PIN_NOPULL);

    nrf_uart_baudrate_set(p_instance->p_reg, p_config->baudrate);
    nrf_uart_configure(p_instance->p_reg, p_config->parity, p_config->hwfc);
    nrf_uart_txrx_pins_set(p_instance->p_reg, p_config->pseltxd, p_config->pselrxd);
    [...]
}

void nrf_uart_txrx_pins_set(
    NRF_UART_Type  *p_reg,
    uint32_t        pseltxd,
    uint32_t        pselrxd
) {
    p_reg->PSELRXD = pselrxd;
    p_reg->PSELTXD = pseltxd;
}

CM_ComplPro

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SimPy
SimPy – Discrete event simulation for Python

Wikipedia

Stetige Gleichverteilung
Dreiecksverteilung
Exponentialverteilung
Normalverteilung
Binomialverteilung
Erwartungswert
Varianz
Polstelle

YouTube

08 Exponentialverteilungen Einführung
Die STETIGE GLEICHVERTEILUNG einfach erklärt
ERWARTUNGSWERT und VARIANZ der STETIGEN GLEICHVERTEILUNG
Erwartungswert in der Wahrscheinlichkeit, einfache Version Unterstufe | Mathe by Daniel Jung
02: Grundräume, Ereignisse, Zufallsvariablen, diskreter W-Raum
25: Wichtige stetige Verteilungen, Transformation einer Zufallsvariablen, Erwartungswert, Quantile

brilliant – Problem Solving

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brilliant.org

TI Voyage 200 / nSpire CX Emulator

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ROM Dump
Emulator Software

Firebird for Nspire CX
TiEmu for Voyage 200
github.com/abbrev/tiemu, TIEmu is an emulator of Texas Instruments hand-helds

Log Files

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/db/mysql/ns2.XXX.err
/web/global/webmail/logs/errors

Datasheet

Tutorials

Product

Articles

Documentation

HAL 6.1.0

RT 5.1.0

Forum

github

Compilation

Specs

Studio

Wiki

Website

Blog

A C Library for embedded applications

cc1

EABI

syscalls

newlib

-specs=rdimon.specs

Semihosting

Specs to Linker?

ld or gcc

ARM Simulator

FatFs

STM32F10x

SPIFFS

Wikipedia

YouTube