rfivet/stm32bringup
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Insure consistency between code and documentation.

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This commit is contained in:
Renaud 2025-01-04 16:17:21 +08:00
parent 2ee50ead2a
commit 5b5a13f353
13 changed files with 46 additions and 34 deletions
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3
crc32/Makefile
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@ -1,8 +1,9 @@
# Makefile -- sign32 # Makefile -- sign32
# Copyright (c) 2021 Renaud Fivet # Copyright (c) 2021-2025 Renaud Fivet
# silence unused parameter warning # silence unused parameter warning
WARNINGS=-pedantic -Wall -Wextra -Wstrict-prototypes -Wno-unused-parameter WARNINGS=-pedantic -Wall -Wextra -Wstrict-prototypes -Wno-unused-parameter
CFLAGS = $(WARNINGS) -O2 CFLAGS = $(WARNINGS) -O2
LDFLAGS = -s
all: sign32 all: sign32

7
dht11main.c
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@ -1,12 +1,12 @@
/* dht11main.c -- sample DHT11 sensor */ /* dht11main.c -- sample DHT11 sensor */
/* Copyright (c) 2020-2021 Renaud Fivet */ /* Copyright (c) 2020-2023 Renaud Fivet */
#include <stdio.h> #include <stdio.h>
#include "system.h" #include "system.h"
#include "dht11.h" #include "dht11.h"
int main( void) { int main( void) {
static unsigned last ; unsigned last = 0 ;
dht11_init() ; dht11_init() ;
for( ;;) for( ;;)
@ -17,7 +17,8 @@ int main( void) {
if( 2 == (last % 5)) /* every 5 seconds starting 2s after boot */ if( 2 == (last % 5)) /* every 5 seconds starting 2s after boot */
switch( dht11_read()) { switch( dht11_read()) {
case DHT11_SUCCESS: case DHT11_SUCCESS:
printf( "%u%%RH, %d.%uC\n", dht11_humid, dht11_tempc, dht11_tempf) ; printf( "%u%%RH, %d.%uC\n", dht11_humid, dht11_tempc,
dht11_tempf) ;
break ; break ;
case DHT11_FAIL_TOUT: case DHT11_FAIL_TOUT:
puts( "Timeout") ; puts( "Timeout") ;

2
docs/25_prototype.html
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@ -71,7 +71,7 @@ void kputu( unsigned u) {
} }
int main( void) { int main( void) {
static unsigned last ; unsigned last = 0 ;
for( ;;) for( ;;)
if( last != uptime) { if( last != uptime) {

4
docs/26_uptime.html
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@ -195,7 +195,7 @@ static void display( unsigned u, const char *s) {
} }
int main( void) { int main( void) {
static unsigned last ; unsigned last = 0 ;
for( ;;) for( ;;)
if( last != uptime) { if( last != uptime) {
@ -284,7 +284,7 @@ The build now complete successfully.
$ make $ make
f030f4.elf f030f4.elf
text data bss dec hex filename text data bss dec hex filename
1325 0 12 1337 539 f030f4.elf 1317 0 8 1325 52d f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>

2
docs/27_library.html
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@ -88,7 +88,7 @@ Build terminates successfully producing the same executable as before.
$ make $ make
f030f4.elf from startup.o uplow.2.o uptime.o f030f4.elf from startup.o uplow.2.o uptime.o
text data bss dec hex filename text data bss dec hex filename
1325 0 12 1337 539 f030f4.elf 1317 0 8 1325 52d f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>

2
docs/28_clocks.html
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@ -310,7 +310,7 @@ Build complete successfully, this is for PLL HSE board configuration.
$ make $ make
f030f4.elf from startup.o clocks.o uptime.o f030f4.elf from startup.o clocks.o uptime.o
text data bss dec hex filename text data bss dec hex filename
1441 0 12 1453 5ad f030f4.elf 1433 0 8 1441 5a1 f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>

2
docs/29_interrupt.html
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@ -246,7 +246,7 @@ Build completes successfully
$ make $ make
f030f4.elf from startup.txeie.o txeie.o uptime.o f030f4.elf from startup.txeie.o txeie.o uptime.o
text data bss dec hex filename text data bss dec hex filename
1641 0 20 1661 67d f030f4.elf 1633 0 16 1649 671 f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>

6
docs/31_dht11.html
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@ -220,7 +220,7 @@ Based on this API, I write <b>dht11main.c</b>.
#include "dht11.h" #include "dht11.h"
int main() { int main() {
static unsigned last ; unsigned last = 0 ;
dht11_init() ; dht11_init() ;
for( ;;) for( ;;)
@ -408,7 +408,7 @@ Build completes successfully
$ make $ make
f030f4.elf from startup.txeie.o gpioa.o dht11main.o dht11.o f030f4.elf from startup.txeie.o gpioa.o dht11main.o dht11.o
text data bss dec hex filename text data bss dec hex filename
1877 0 24 1901 76d f030f4.elf 1861 0 20 1881 759 f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>
@ -429,6 +429,6 @@ can read the values reported by the DHT11 sensor.
<a href="32_errata.html">Next</a>, I will investigate if the values read are <a href="32_errata.html">Next</a>, I will investigate if the values read are
correct. correct.
<hr>© 2020-2024 Renaud Fivet <hr>© 2020-2025 Renaud Fivet
</body> </body>
</html> </html>

4
docs/34_adcvnt.html
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@ -340,7 +340,7 @@ adc.c:232:3: warning: #warning HCLK is not multiple of 8 MHz [-Wcpp]
| ^~~~~~~ | ^~~~~~~
f030f4.elf from startup.txeie.o adc.o adcmain.o f030f4.elf from startup.txeie.o adc.o adcmain.o
text data bss dec hex filename text data bss dec hex filename
2464 0 16 2480 9b0 f030f4.elf 2408 0 16 2424 978 f030f4.elf
f030f4.hex f030f4.hex
f030f4.bin f030f4.bin
</pre> </pre>
@ -366,6 +366,6 @@ point measured in factory for the STM32F030 family members.
means taking two measurements as far apart as possible in the working range I means taking two measurements as far apart as possible in the working range I
want to use. want to use.
<hr>© 2020-2024 Renaud Fivet <hr>© 2020-2025 Renaud Fivet
</body> </body>
</html> </html>

6
docs/36_update.html
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@ -130,7 +130,7 @@ environment in use (Cygwin, MSYS2 and other).
ifeq (linux, $(findstring linux, $(MAKE_HOST))) ifeq (linux, $(findstring linux, $(MAKE_HOST)))
INSTALLDIR = $(HOME)/Packages INSTALLDIR = $(HOME)/Packages
#REVDIR = gcc-arm-none-eabi-10-2020-q4-major #REVDIR = gcc-arm-none-eabi-10-2020-q4-major
REVDIR = arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi REVDIR = arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-eabi
else else
DRIVE = d DRIVE = d
ifeq (cygwin, $(findstring cygwin, $(MAKE_HOST))) ifeq (cygwin, $(findstring cygwin, $(MAKE_HOST)))
@ -142,7 +142,7 @@ else
endif endif
INSTALLDIR = $(OSDRIVE)/Program Files (x86) INSTALLDIR = $(OSDRIVE)/Program Files (x86)
#REVDIR = GNU Arm Embedded Toolchain/10 2020-q4-major #REVDIR = GNU Arm Embedded Toolchain/10 2020-q4-major
REVDIR = GNU Arm Embedded Toolchain/arm-gnu-toolchain-13.3.rel1-mingw-w64-i686-arm-none-eabi REVDIR = GNU Arm Embedded Toolchain/arm-gnu-toolchain-14.2.rel1-mingw-w64-i686-arm-none-eabi
endif endif
GCCDIR = $(INSTALLDIR)/$(REVDIR) GCCDIR = $(INSTALLDIR)/$(REVDIR)
@ -174,6 +174,6 @@ changes.
<a href="37_inram.html">Next</a>, I will (re)build to execute code in RAM <a href="37_inram.html">Next</a>, I will (re)build to execute code in RAM
instead of FLASH. instead of FLASH.
<hr>© 2020-2024 Renaud Fivet <hr>© 2020-2025 Renaud Fivet
</body> </body>
</html> </html>

36
docs/37_inram.html
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@ -384,7 +384,7 @@ ledtick.elf: ledtick.o
cstartup.elf: cstartup.o cstartup.elf: cstartup.o
%.elf: %.elf:
@echo $@ @echo $@ from $+
$(CC) $(CPU) -T$(LD_SCRIPT) $(LDFLAGS) -nostartfiles -o $@ $+ $(CC) $(CPU) -T$(LD_SCRIPT) $(LDFLAGS) -nostartfiles -o $@ $+
$(SIZE) $@ $(SIZE) $@
$(OBJDUMP) -hS $@ > $(subst .elf,.lst,$@) $(OBJDUMP) -hS $@ > $(subst .elf,.lst,$@)
@ -397,15 +397,26 @@ The projects composition need to be updated to use the new startup.
Finally, to keep track of the memory model and the load location, I put Finally, to keep track of the memory model and the load location, I put
the load address in the name of the binary file generated. the load address in the name of the binary file generated.
<pre>all: $(PROJECT).$(BINLOC).bin $(PROJECT).hex</pre> <pre>all: $(PROJECT).hex $(PROJECT).$(BINLOC).bin</pre>
With the corresponding rule
<pre>
%.$(BINLOC).bin: %.elf
@echo $@
$(OBJCOPY) -O binary $< $@
</pre>
This way if I build uptime prototype in GORAM memory model This way if I build uptime prototype in GORAM memory model
<pre> <pre>
$ make $ make
f030f4.elf f030f4.elf from startup.ram.o txeie.o uptime.1.o libstm32.a
Memory region Used Size Region Size %age Used
FLASH: 1163 B 2 KB 56.79%
RAM: 208 B 2 KB 10.16%
text data bss dec hex filename text data bss dec hex filename
1164 0 20 1184 4a0 f030f4.elf 1163 0 208 1371 55b f030f4.elf
f030f4.hex f030f4.hex
f030f4.0x20000800.bin f030f4.0x20000800.bin
</pre> </pre>
@ -419,19 +430,18 @@ $ stm32flash -g 0x20000800
<h2>Caveat: stm32flash v0.6 intel hex bug</h2> <h2>Caveat: stm32flash v0.6 intel hex bug</h2>
At the time of writing, <b>stm32flash</b> v0.6 has a bug that prevents <b>stm32flash</b> v0.6 had a bug that prevents writing intel hex files
writing intel hex files correctly at address other than the origin of correctly at address other than the origin of the Flash. A bug fix and the
the Flash. A bug fix and the possibility to directly read the base possibility to directly read the base address from the intel hex file was
address from the intel hex file are planned to be included in v0.7. merged in v0.7.
<p> <p>
Until v0.7 is out, I am using my own patched version of stm32flash or I have branched off my own patched version of <b>stm32flash</b>, I added a
the binary files when I need to test GOFLASH and GORAM memory models.
<p>
As I branched off my own patched version of <b>stm32flash</b>, I added a
<code>-x</code> option to write and execute an intel hex file: <code>-x</code> option to write and execute an intel hex file:
<pre>stm32flash -x file.hex COM#</pre> <pre>stm32flash -x file.hex COM#</pre>
This patch is scheduled to be merged in v0.8.
<h2>Testing</h2> <h2>Testing</h2>
I build all four memory models and check that they can be loaded and I build all four memory models and check that they can be loaded and
@ -448,6 +458,6 @@ GORAM with <b>STM32 Cube Programmer</b>.
<a href="38_crc32.html">Next</a>, I will add integrity check at startup by <a href="38_crc32.html">Next</a>, I will add integrity check at startup by
doing CRC32 validation of the code. doing CRC32 validation of the code.
<hr>© 2020-2024 Renaud Fivet <hr>© 2020-2025 Renaud Fivet
</body> </body>
</html> </html>

4
uptime.1.c
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@ -1,5 +1,5 @@
/* uptime.1.c -- tells how long the system has been running /* uptime.1.c -- tells how long the system has been running
** Copyright (c) 2020 Renaud Fivet ** Copyright (c) 2020-2023 Renaud Fivet
** **
** v1 displays the number of seconds elapsed since boot ** v1 displays the number of seconds elapsed since boot
*/ */
@ -19,7 +19,7 @@ void kputu( unsigned u) {
} }
int main( void) { int main( void) {
static unsigned last ; unsigned last = 0 ;
for( ;;) for( ;;)
if( last != uptime) { if( last != uptime) {

2
uptime.c
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@ -1,5 +1,5 @@
/* uptime.c -- tells how long the system has been running */ /* uptime.c -- tells how long the system has been running */
/* Copyright (c) 2020 Renaud Fivet */ /* Copyright (c) 2020-2023 Renaud Fivet */
#include <stdio.h> #include <stdio.h>
#include "system.h" /* uptime, yield() */ #include "system.h" /* uptime, yield() */