Forum - Recent Threads

HAL Libraries - Importing and Using

14rhb — Sat, 02 Mar 2019 11:33:45 GMT

I'm after some advice on how to do the following, the discussion will likely be useful to others, so I have broken out to this 'fresh area'. Happy to move if there is a more suitable place.

I'm participating in Sixth Sense Design Challenge and anyone following that will likely see a few posts from me stating that I'm struggling to understand the STM32 development cycle more than the actual range of IDEs. My initial discussion is https://www.element14.com/community/community/design-challenges/sixth-sense-design-challenge/blog/2019/02/25/r2b4-6-sens…

I'm currently using True Studio and STM32L476 although the question could easily relate to the other IDE and/or other devices and boards. I can, with some effort and luck, manage to install and download the examples that are provided in the relevant STM32xx_Cube downloads, I can use STM32xxCubeMX to make a skeleton framework but I seem lost when it comes to adding into an existing project.

For example, I am currently trying to activate the UART5 for that challenge. I have managed to track down the HAL_drivers for the UART in the initial download and add those into my existing project. Partly comparing a simple UART example I made to see what is required. All the HAL_UART functions are greyed out because HAL_UART_MODULE_ENABLED is not defined. When I look at the simple example I see these are defined in STM32xx_HAL_conf.h but in my example from the STM32xxCube package there doesn't appear to be such a file.

If I manage to find a solution I will post it here - current thinking is to (1) simply define the above and see what happens (2) copy the whole header file from another project and adjust for my current one

Any simple tips, explanation of the basics or links to concise articles would be really appreciated. I really want to crack my understanding of these ARM based boards - I have several now and really want to make something useful with them.

Rod

Is This Situation Repairable

jw0752 — Sat, 19 Aug 2017 03:37:20 GMT

A while back I posted a blog about building a DSO Shell 15001K Oscilloscope Kit.

https://www.element14.com/community/people/jw0752/blog/2017/04/25/building-the-dso-shell-15001k-oscilloscope

I gave one of these kits to an old friend and he called me a few days later to say that the preliminary test of the Main Board which is done before one starts assembly showed it to be failed We tried a number of diagnostics over the phone and finally I had him send the board to me My tests revealed that there was a low resistance short on the 3.3 volt rail I traced the circuit and removed smd components and cut traces to try to isolate the branch of the 3.3 volt circuit and the component that might be causing the problem Ultimately the fault was in the STM32F103C8T6STM32F103C8T6 microprocessor I removed the microprocessor and decided that the unit was going to be just parts While I can technically replace the uP I have no way to reprogram it As I studied the schematic I noticed that there was in addition to the uP an 8 pin 24LC32A EPROM tied to the SOA and SCL pins of the uP Here is a link to the main board schematic

http://www.jyetech.com/Products/LcdScope/Schematic_150main.pdf

My question is whether there is a possibility that the program for the unit is on the EPROM and not on the uP. Would I be able to replace the fried uP with a raw one and expect it to automatically boot up from the EPROM. At this point it is all just a learning experience but I will probably not waste my money on a uP or my time replacing it if it is impossible for the program to be on the EPROM.

Any insights will be appreciated.

John

STMicro X_NUCLEO library?

CaptGreg — Mon, 10 Oct 2016 15:17:26 GMT

I'm looking for a library for designing STMicro X-NUCLEO boards.

Is there a library similar to the BeagleBone library available for the X-NUCLEO boards?

STM8s CAN filtertaion mechanism(message filtering)

Former Member — Sat, 11 Jun 2016 11:52:51 GMT

Hi all,

I am working on some CAN communication project which allows us to control some external device attached to one node from some other node.

Since the CAn bus is a broadcast network and hence a message sent by a node will be received by every other CAn node on the bus.

My requirement is that i need to implement a filteration mechanism for the nodes so that a node will only act upon those received messages

for which it is configured(using some GUI utility). So i need to implement this filter mechanism in my code.I am using STM8SAF52Ax mcu with

IAR embedded workbench as developement enviornment.

How could i implement this filter process of can messages.I also did web search and read many other tutorials but still i am unable to figure

out what to be done. There are use of CAN filter Id and filter mask but i am unable to decide what value to be loaded in these and how to

calculate these values.

For Ex..If i want to receive only two message ids 0x25 and 0x56 ,then what values to be loaded in filter and mask registers and how to calculate these values.

Please suggest some tutorials or any explanations with some example.

Thanks

Amit Kumar

Email-amitkrv22@outlook.com

Anyone has STM32F0 SPI eeprom example?

camuyano — Wed, 13 Apr 2016 15:43:21 GMT

Does anyone has any example using an STM32F0 reading/writing to an external SPI eeprom?

Or code from other MCU using an eeprom AT93C66A?

I am using HAL libraries for SPI communication. My development environment is uVision Keil

I want to talk to an external eeprom via SPI and haven't been able to. I do not have experience with SPI that's why this is a general question.

Maybe with some example code I can go into the right direction.

If I cannot resolve my situation I will post a new question with diagrams and code that can be a more detailed question.

How to get STM32F105 into DFU mode?

Former Member — Wed, 10 Feb 2016 13:29:36 GMT

Hi!

I got a custom board and having problem to get F105RCT6 MCU into DFU mode when connected to USB-cable and PC. Is there anyone the have some suggestions that can help me?

I also tried to get connected using USB to TTL with no success. Then I tried PA9/PA10 for USART1_TX and USART1_RX..

All help is appriciated

Can I change bootloader UART pins for STM32F030F4 ?

camuyano — Thu, 03 Dec 2015 20:35:31 GMT

I am using a STM32F030F4 chip. This chip has one UART and one I2C.

I want to have the UART always connected to a usb to serial chip for firmware upgrade via the bootloader. But I wanted to use the I2C as well for some sensor.

From CubeMX I see there are two set of pins that can be used for UART.

As default I see UART on PA9 and PA10. Pins.PA9 and PA10 are the pins used for I2C.

The CubeMX let me change UART to PA2 and PA3,

My Question is:

Can I change the chip bootloader so I have PA2 and PA3 as UART and leave PA9 and PA10 open for I2C ?

This is how I would like to be on bootloader.

Thought that if this can be changed for run mode, should be possible to change for bootloader, but I do not have the factory bootloader source code to change it.

I would like to stay with a bootloader similar to the one from factory to keep official tools compatibility. But wanted the UART to move from PA9-PA10 to PA2-PA3 if possible.

I am totally new to STM32, this is a shot in the dark in case it is possible.

Any comment is welcome.

STM32 development, what to use? Noob

camuyano — Tue, 10 Nov 2015 16:52:21 GMT

I want to start using some STM32 chips, but I do not know where to start.

Specifically I want to work with STM32F0 chips I will be using a cheap development board STM32F030F4P6STM32F030F4P6 Arm Cortex-M0

I would like to code in Windows, Linux and Mac.

I want to use this chip because it is less than $2 and seems to work with very little support components and have USB support.

To simplify please comment on these question.

What FREE tools are available to code for STM32F0 boards (any platform)?

What is the most common use tool for this devices?

I am totally new to this MCU, normally I use Arduino but I want to get my hands in other non Atmel chips. Just to get more experience and learn.

Any comment is welcome.

Finding a STM32L152 board for projects

electronichamsters — Mon, 10 Aug 2015 04:05:17 GMT

I'm using ST's NUCLEO-L152RENUCLEO-L152RE dev board for the STM32L152 microcontroller I've made a project that I need a smaller form factor than the dev board Ideally it would have the STM32L152 with a judicious selection of pins available and the voltage regulator for low power operation

But I'm having trouble finding something I can buy readily made. Is googling STM32L152 not the right way of going about this?

Schematic for STM32F WiFi module?

Former Member — Wed, 15 Jul 2015 23:50:30 GMT

Hi,

Can anyone point me to the WI-FI_SN8200_schematic.pdf as mentioned in the user manual for the STM32FDiscovery WiFi module?

Much appreciated!

geoffrey brown exercise 4.1

Former Member — Sun, 07 Sep 2014 08:15:46 GMT

Hi,

I was working through Geoffrey Brown's book on STM32, hoping to learn how to program these using gcc. Turns out my geek factor is too small. I don't get exercise 4.1 to compile.

stm32f10x_gpio.o: In function `GPIO_DeInit':

/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:111: undefined reference to `assert_failed'

stm32f10x_gpio.o: In function `GPIO_Init':

/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:178: undefined reference to `assert_failed'

/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:179: undefined reference to `assert_failed'

/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:180: undefined reference to `assert_failed'

/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:187: undefined reference to `assert_failed'

stm32f10x_gpio.o:/home/oppa/hacking/arm/stm32/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c:286: more undefined references to `assert_failed' follow

collect2: error: ld returned 1 exit status

../Makefile.common:61: recipe for target 'blinky.elf' failed

make: *** [blinky.elf] Error 1

This leaves me helpless. Any ideas ?

Thanks,

Stephan

STM3240G-EVAL LCD Configuration

Former Member — Sat, 28 Jun 2014 20:16:20 GMT

I am developing on the STM3240G-EVAL and am using the 3.2" TFT color LCD. I am trying to change the display that is on the LCD to a logo for the company that I am working at so when you turn it on, the LCD displays it by default. We purchased the development board pre-programmed with an example on it so that when I turn on the board their logo shows up on the LCD.

I have been attempting to reverse engineer the board to find how I could simply replace their picture with mine. I read through main.cpp and stepped through the program line by line and believe this is whats happening;

the LCD is initialized with STM324xG_LCD_Init()

LCD_WriteBMP((uint32_t)imgMtkSplash320x240) Displays a bitmap picture loaded in the internal Flash.

And when I check the declaration of ImgMtkSplash320x240 I am directed to the following c array hex file;

I downloaded a GUI (graphical user interface) editor from here;

STM32 embedded graphic object/touchscreen library

and tried to output the logo into a c hex array.

I then took the C hex array and replaced ImgMtkSplash320x240 with the one I created. I cleaned the project and re built it to find that when I launched it the old logo was still there that the previous developer had implemented.

Even deleting the entire c hex array doesn't affect the old logo. Its still there.

I've tried to find examples of people using the LCD for the STM3240G to no avail.

Has anyone had any experience with LCD's launching from flash memory? I could really use some wisdom. I am digging through the manual in the meantime. Thanks for reading.

Parse HTTP header

zavovi — Wed, 02 Apr 2014 19:12:42 GMT

Hi,

I use LwIP stack with FreeRTOS and STM32F4 Discovery. I use it like web server. And I want parse POST parameters. And parse header for read Cookies. I wrote lot of functions. Some functions was good in one browser, but in other browsers was problem. I don't know why?

For example this function:

int POST_parametry(char* uri){

char* params_uri;

char* equals;

char* pair;

char* pair1;

char* cookie;

int loop;

int stop = 1;

params_uri = strstr(uri, "\r\n\r\n");

pair = params_uri+4;

for(loop=0; (loop < LWIP_HTTPD_MAX_CGI_PARAMETERS) && pair; loop++){

p_params[loop] = pair;

equals = pair;

pair = strchr(pair, '&');

if(pair) {

*pair = '\0';

pair++;

} else {

pair = strchr(equals, ' ');

if(pair) {

*pair = '\0';

}

pair = NULL;

}

equals = strchr(equals, '=');

if(equals) {

*equals = '\0';

p_values[loop] = equals + 1;

} else {

p_values[loop] = NULL;

}

return loop;

}

Sometimes parsed data isn't correct.

Can you help me please? Or post some function for parse data?

I need for my diploma thesis and I haven't lot of time.

Thank you

Artificial horizon using MEMS gyroscope?

peterwf — Sat, 16 Nov 2013 16:53:39 GMT

I have an application akin to an aircraft "Artificial horizon", and am wondering whether I can use a MEMS gyroscope. By integrating the output I should have a measure of angle to the vertical, but I understand that the integral would drift off over a relatively short period. Measuring the gravitational direction is obviously not possible, as a correctly banked aircraft always sees the combined gravitation and centrifugal force acting downwards with respect to the aircraft.

Has anyone any ideas how to correct or at least measure the drift?

Help please - TS820 800T equivalent needed

Former Member — Tue, 22 May 2012 21:05:25 GMT

Hi,

I need to replace a TS820 800T from the battery charger of a cordless drill and am having difficulty finding one.

Would anyone know how/where I could find an equivalent?

Thanks in anticipation.

TDA7490AP Where can you get these

Former Member — Thu, 01 Mar 2012 13:25:34 GMT

looking to find TDA7490AP surface mount datasheet and where to buy a replacement or alternative ?

Réseau Green Net de STmicro

Crozemarie — Fri, 10 Feb 2012 09:10:48 GMT

Voici une info publié par velo_love ici

Je trouvais l'info interressante alors je la rediffuse.

cordialement

Jean-Pierre

Bonjour,

juste pour info :

http://www.st.com/internet/com/press_re ... 64_fra.jsp

STMicroelectronics crée de nouvelles possibilités de surveillance et de sécurité pour les foyers intelligents avec téléchargement aisé d’applications en-ligne

Basée sur des standards ouverts et des nœuds sans fil bénéficiant d’une grande simplicité d’installation, la plate-forme GreenNet favorise l’essor des foyers intelligents et ouvre de nouvelles opportunités commerciales aux développeurs d’applications et aux fournisseurs de services

GreeNet

Genève, Janvier 13, 2012 -

Une nouvelle catégorie d’applications devrait prochainement faire son apparition sur les téléphones mobiles et autres décodeurs numériques grâce à la plate-forme ouverte pour immeubles et foyers intelligents que propose STMicroelectronics, un leader mondial dont les clients couvrent toute la gamme des applications électroniques et pionnier dans le domaine du développement durable et du rendement éco-énergétique.

GreenNet, la technologie de mise en réseau de capteurs sans fil (Wireless Sensor Network - WSN) de ST, permet d’exploiter avec une efficacité maximale l’énergie utilisée pour le chauffage et l’éclairage et d’augmenter la sécurité des utilisateurs en surveillant leur environnement domestique. La plate-forme GreenNet se compose de nœuds autoalimentés qui peuvent être placés à différents endroits de la maison pour prendre en charge des tâches telles que la surveillance de la température, du niveau de monoxyde de carbone (CO) ou des déplacements. Les données enregistrées sont relayées via une liaison sans fil jusqu’à une clé électronique (dongle) GreenNet branchée sur un PC ou un décodeur numérique. Elles peuvent alors être transmises à un appareil mobile tel qu’un téléphone intelligent ou une tablette numérique par l’intermédiaire d’un routeur sans fil aux fins de surveillance et de contrôle.

L’élément fondamental de la nouvelle plate-forme de détection sans fil en réseau GreenNet est le nœud GreenNet, qui utilise les technologies développées par ST dans les domaines de la gestion de l’énergie, des capteurs à base de circuits intégrés et de liaisons sans fil embarquées pour constituer le réseau de haute performance le plus simple d’emploi, qui fonctionne sans le moindre câble et sans remplacement des batteries. Le nœud combine une batterie rechargeable, une cellule solaire, un capteur intégré et un microcontrôleur sans fil 32 bits STM32W dans un boîtier en boîtier 3D compact qui affiche une consommation d’énergie minime et peut fonctionner de façon autonome, grâce à l’énergie générée exclusivement par la lumière ambiante.

Afin de faciliter son intégration dans les foyers intelligents par les professionnels comme par les particuliers, l’installation de cette technologie se limite à la mise en place de nœuds aux endroits appropriés. Cette approche devrait encourager l’adoption de cette technologie par les consommateurs, ainsi que dans les immeubles de bureau et à usage industriel. En faisant appel à des standards ouverts tels qu’IPv6 1, la plate-forme GreenNet conjugue des performances et une flexibilité élevées tout en permettant aux développeurs — ce qui est encore plus important — de créer des applications téléchargeables simples d’emploi pour exécuter des tâches telles que la surveillance et la sécurité des environnements domestiques ou la détection de fumée.

ST effectue actuellement des démonstrations de ce système avec un nœud-échantillon composé d’un capteur de température intégré, d’un dongle USB et d’une plate-forme de services comportant une boutique en-ligne qui propose des échantillons d’applications. Alimenté par une lumière ambiante de 150 lux disponible six heures par jour, ce système peut relayer les relevés de température à intervalles de cinq minutes. Il peut également fonctionner de façon autonome dans l’obscurité pendant six semaines maximum dans le cadre d’un système de surveillance de l’environnement. Des échantillons sont dès à présent tenus à la disposition des clients intéressés.

Principales caractéristiques techniques du nœud GreenNet :

Le nœud sans fil GreenNet utilise une liaison radio conforme à la norme industrielle IEEE 802.15.4 qui fonctionne dans la bande de fréquence sans licence de 2,4 GHz, mais consomme moins d’un quart de l’énergie requise par un nœud sans fil comparable. L’utilisation de la plate-forme GreenNet simplifie considérablement l’association des nœuds sans fil et du dongle USB.

Par ailleurs, l’architecture du nœud autorise des performances extrêmement évolutives qui permettent aux nœuds d’exécuter des tâches plus intensives lorsque la quantité d’énergie disponible est plus importante. Cette approche permet de réaliser des réseaux de plus grande envergure, par exemple en positionnant à proximité d’une fenêtre un nœud qui concentrera les données fournies par plusieurs nœuds voisins et communiquera avec le dongle GreenNet central. Si nécessaire, les développeurs peuvent également fournir une autre source d’énergie, telles que le courant secteur, ce qui accroît la flexibilité et la facilité d’installation pour les développeurs et intégrateurs de systèmes.

STM8S - Discovery TinyBasic

Former Member — Wed, 08 Feb 2012 14:13:46 GMT

http://www.joaquim.org/Home/projectos-1/stm8s-discovery/stm8s-tinybasic

Discrepancys in STM32F415xx/417xx Datasheet and F4 Brochure

Former Member — Fri, 03 Feb 2012 08:52:25 GMT

Hello,

while evaluating the STM32F417 for one of our upcoming products I started up with the F4 Brochure (ST Document#: A9R19CA; http://www.st.com/internet/com/SALES_AND_MARKETING_RESOURCES/MARKETING_COMMUNICATION/MARKETING_BROCHURE/brstm32f4.pdf). Digging deeper I looked into the datasheet (ST Document#: A9R19CC; http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/DM00035129.pdf) and I found certein discrepancys relating the Peripherals. Until now I have come up with:

Peripheral	F4 Brochure (STM32F417Vx/Zx/Ix)	F4 Datasheet (STM32417Vx/Zx/Ix)
I2C	2/2/2	3/3/3 (chapter 2)
UART	3/3/3	2/2/2 (chapter 2)
USART	3/3/3	4/4/4 (chapter 2)
16bit Timers	2/2/2	12/12/12 (section 2.2.20)
12-bit ADCs	16 / 2 / 24	3 (16ch) / 3 (24ch) / 3 (24ch) (chapter 2)

Well, the last two examples can be interpreted as typos, but what about the other ones? How many surpises are still to come?

And most interesting: Which document can I really trust?

Thanks for your answer or comments!

Sven

QFN, MEMS Chips, & Breakout boards

Former Member — Sun, 30 Oct 2011 20:10:01 GMT

Hi folks,

I'm interested in prototyping with some the MEMS accelerometers however they come in the LGA form-factor. I have no experience with this type of packaging and I'm hoping someone can point me in the direction of where to find some cheap breakout boards.

I think I'm missing something basic as I can't seem to easily find board to quickly mount one of these chips and use it in a solder-less breadboard. Maybe I'm just getting to old for good old hands-on experimentation.

I ultimately want to hook this chip up to an lpcexporesso micro-controller for reading the sensed data.

Thoughts?

Take Care
Jason

Toolchain options for the STM32VLDISCOVERY - also for Linux

Former Member — Sun, 30 Jan 2011 19:40:19 GMT

Hi there,

I made a list of the toolchains I'm aware of - also including Linux-compatible options. See it here:

http://embeddednewbie.blogspot.com/2011/01/free-toolchains-for-stm32vldiscovery.html

Hope it's of any help!

Technical question.

Former Member — Wed, 27 Oct 2010 10:41:01 GMT

Here Marc from Technical support in Farnell Spain.

We have a technical inquiry about your part number STM8/128-SK/RAIS, code Farnell 1683823. We can report the exact contents of this kit?

Thanks.

Marc.

LQFP Adapter for STM8 Programmer ?

gschattmann — Thu, 23 Sep 2010 08:34:36 GMT

Hello all,

could anyone recommend a SMT8A Programmer Adapter for off-circuit pre-programming of

LQFP32 ( 7x7mm ) and LQFP80 ( 14x14mm ) MCUs.

32 Pin (Package LQFP32)
- STM8AF6266T (alt STM8AF6166T)
- STM8AF6246T (alt STM8AF6146T)

80 Pin (Package LQFP80)
- STM8AF51AAT
- STM8AF619AT

Recently we can only programm the MCU using ST-LINK when already soldered in a circuit.

What sockets can i use without damaging the MCU ?

Any comment is welcome.

cheers

Goetz

Is it time for 8-bit users to change to 32-bit?

richardleighton — Thu, 16 Sep 2010 16:06:57 GMT

With the explosion of new, low cost, low power high performance 32-bit micros on the market, is it time for 8-bit users to change?

STM32VL Discovery ask our expert David Lamb a question

richardleighton — Thu, 16 Sep 2010 15:22:03 GMT

This thread has been closed to new questions.

However, we welcome you to Post Your Question about Embedded in the element14 Community Embedded group. You'll find many fellow members and experts who have just the answer you're looking to find!

Thank You, Your Friends at element14 Community

David, has worked in the semiconductor industry for 22 years, most of it with ST. His area of expertise is Micros.