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I need help with using pzem 004t in stm32f405 with uart communication. i have check this source willyvamp/STM32F103C8T6-PZEM004T-DHT11: HAL STM32 (github.com) but still dont get the data form uart. please help

I am trying to set up a sourcing power delivery port on an STM32G0 system. I have set up switching of VBUS, and when I connect up a sinking device my system detects it, sets up VBUS and starts sending source capacity messages.Log:<Connect source to port 0> USBPD_DPM_Notification - USBPD stack started USBPD_DPM_UserCableDetection - Cable attached to port 0; role=sink USBPD_DPM_Notification - USBPD stack started USBPD_DPM_SetDataInfo - Reset sink PDO on port 0 (data=0) USBPD_DPM_SetDataInfo - Received sink request of size 1 on port 0 USBPD_DPM_SetDataInfo - Received 5 Source PDOs on port 0 USBPD_DPM_SNK_EvaluateCapabilities - Selecting PDO offer 0 USBPD_DPM_Notification - Power state changed on port 0 USBPD_DPM_Notification - Request accepted on port 0 USBPD_DPM_Notification - Power state changed on port 0 USBPD_DPM_Notification - Explicit contract on port 0 USBPD_DPM_Notification - Sink ready on port 0   <Connect sink to port 1> BSP_USBPD_PWR_VBUSOff on port 1 USBPD_DPM

I have set up the USBPD lib on my system to manage USB power delivery messages and set up power contracts in both the source and sink directions. Now that this seems to work well, I also want the system to work with a USB-C only power source (non-PD). I have a power source that is capable of supplying 3A at 5V, and have connected a 10K Rp resistor between a CC line and VBUS.On connecting the source I expected (hoped) the USBPD stack to trigger a connection event, sample the CC lines and conclude that after a while of no CC responses end up in the USBPD_POWER_IMPLICITCONTRACT state based on the Rp resistor value. Instead it triggers a connect event and goes to the USBPD_POWER_DEFAULT5V state. Then after a while of no CC response it tries to hard-reset the bus and panics because the requested voltage (0V) does not match the bus voltage (5V).So my question is how is this normally handled? Is is possible to have the USBPD stack be happy with a fixed Rp resistor, and is it possible for the

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I am running STM32CubeIDE ver 1.11.0 and using a Nucleo-F446RE boardI create a new project and just enable FreeRTOS and add 1 task (in addition to the default task. I am using CMSIS_V2. I save and generate the code. The code for the task is there, but there are no calls in the code to create the thread. Watched some youtubes and they dont seem to do anything more than what I did, but their project have all the code there to create the threads and the threads run...any ideas would be appreciated.thanks!

Hello - I am working on a safety critical application using the STM32L431VC that requires the VREF+ voltage rail to be powered off of a different voltage rail than the main VDD and VDDA rail. The VDD and VDDA voltage rails are being generated by a single SMPS that is bucking 12V down to 3.3V. The VREF+ pin of this part is being supplied with a 3.0V rail that is also generated off of the 12V input rail of this design.Since both the 3.3V VDD/VDDA rail and the 3.0V VREF+ rails are being generated off of the 12V rail independently, there is a chance that the 3.0V rail could be present on VREF+ while 3.3V is sequencing up. (Essentially, 3.0V VREF+ can be present before 3.3V VDD/VDDA). In order to avoid this, I am planning on sequencing the 3.0V regulator off of the Power Good for the 3.3V regulator. Once 3.3V is steady the power good will allow 3.0V to begin regulation. The STM32L431VC datasheet is not clear on whether this is OK. The power sequencing Figure 3 only shows VDD and VDDA. &nbsp

I'm trying to use these two functions in STM32CubeIDE within FreeRTOS CMSIS v2:osKernelSuspend()osKernelResume()My goal is to put the microcontroller in STOP MODE.I get an error when compiling the project.The problem seems to be the following: the two functions are only defined in cmsis_os2.h, but they are missing in cmsis_os2.c.Such functions are well described in the documentation:https://www.keil.com/pack/doc/CMSIS/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html#gae26683e1606ec633354a2876c68f0c1fBut they are missing in the FreeRTOS folder.I'm using STM32L4xx microcontrollerAny suggestion to fix the problem?Thanks in advance!Flavio

I am currently working on a project where I am using the serial communication. I am using an AEK-MCU-C4MLT1, with SPC5 studio on a windows PC. In particular, I am capable to transmit data but not to receive data. I tried also by enabling the interrupt, either for the transmission and the reception, and I found out that the program enters in the interrupt each time I call the function "sd_lld_read", even if I send no data externally (from docklight). By sending data from docklight, and looking at the rx_buffer I am not able to read anything.I attach the relevant part of the code here:int main(void) { /* Initialization of all the imported components in the order specified in the application wizard. The function is generated automatically.*/ componentsInit(); /* Uncomment the below routine to Enable Interrupts. */ irqIsrEnable(); sd_lld_start(&SD1,&serial_config_UART); sd_lld_read(&SD1, (uint8_t*)aux_rx, 1000); memset(aux_rx,0,sizeof(aux_rx)); /* Application main loop.*/ for (

After reading documents, I understand the practical boot sequence of STM32MP1 is BOOTROM->TF-A->U-boot->Kernel->file system​In my use case, I prefer to use Windows and write code in bare metal, without U-boot and device tree involved. 1 I think the boot sequence will be BOOTROM->TF-A->bare metal binary?2 I tried STM32MP15x starter package in Windows, by using STM32CubeProgrammer, to flash binaries to NVM such as NAND, and NOR etc. If I understand correctly, is FIP section in the tsv file assigning the partitions of NAND flash and NOR flash? If I want to go with the boot sequence I mentioned above, is there a way I can modify FIP bin/access the source code in Windows, and change NAND flash partition?3 Is there an identification header, like the 256 bytes header that TF-A contains, needs to be attached to my bare metal binary?Thanks in advance.dchen

Below is a copy of a warning found within the PID-controller of MC-SDK 5.Y.4.We have a Cortext-M4 based board so I guess the warning text is a copy-paste and I should not care that it mentions Cortex-M3.. /* WARNING: the below instruction is not MISRA compliant, user should verify that Cortex-M3 assembly instruction ASR (arithmetic shift right) is used by the compiler to perform the shifts (instead of LSR logical shift right)*/ //cstat !MISRAC2012-Rule-1.3_n !ATH-shift-neg !MISRAC2012-Rule-10.1_R6How can we check if the compiler uses ASR and not LSR in these situations?

Hi DearI try to build a test setup with AEK-AUD-D903V1 and AEK-MCU-C1MLIT1 follow the user manual um2719, when I modifed the "application.ld" document, an error was generatered.    .sounddb : ALIGN(16)    {        __sounddb_start__ = .;        *(.sounddb)        *(.sounddb.*)        *(.gnu.linkonce.s.*)            KEEP(*(.sounddb))  // the error line        __sounddb_end__ = .;    } > soundI located the error line, if  "KEEP(*(.sounddb))" line was deleted, the project will be compiled competely, or failed.The error indicator was attached. Could you please me to solve this issue, thanks.

I have a STEVAL-IPM05F. My goal is to switch on/off the IGBTs. While I try that, I got many difficulties, like loading the Boots voltage etc. Now I have four questions. Why are all of the bootstrap capacitors carched although I don't switch the LOW-Side on?What is the SD here (Where can I measure when an error is there?). I put it on high or in low and nothing changes.Where does the powerboard gets his 3.3V or 5V? If I look at the circuit, there isn't anything which generates the 3.3V or 5V. I have an +V and HV bus voltage pin on the motor control connector and there isn't any description in the user manuel or in the internet. What do they stand for? Pls a good answer is very important, because in my last question the answer was wrong and I tried to test the board with that answer and lost a lot of time. Thank you!

HiI have the situation, that on one screen several buttons with only one color and rounded corners has to be placed. (see screenshot) But the corners are different on every button.The easiest way would be to generate two images (for released/pressed button) for every button, but this is very ressource intensive (memory) for such simple buttons. If possible I would like to avoid this case.With the flex button i have the option to add a box. Is there an option to specify a radius for every corner?Or are other concepts applicable for this situation?Is such a feature planned for next releases of the designer (maybe in version 4.11)? When will the new release available? I've seen that this will include new text options which are very interesting for me.Best regardsMarco

we have bought a batch of L297/1, and found the appearance has shown very bad surface plating result. we have bulk ID on the outer box, please help to confirm if the parts are authentic from STM.[edit: some information removed by moderator] thank you!

Hi,Currently I have 5 STM32F469I Discovery boards:1 x MB1189 B-02 (Revision that is not mentioned in the User Manual, chapter 6.2 product history).4 x MB1189 B-08 (F469NIH6).Have been using the B-02 for some time without any problems.When I use any B-08 board with a default TouchGFX (4.20) template the display does not turn on. When I check the debugger all the display commands (OTM8009a) commands have a time-out.Even without flashing the B-08 boards when they come straight out of the packaging, the display does not turn on when I connect the usb cable.However, when I try the precompiled demo from 2019 (from this page) the display does turn on, but the program enters some fault handler as it gets stuck. On the B-02 board this demo does run without problems (except that the images are not loaded from the external flash).What is the difference between these boards, which driver do I need to control the display?

What is the difference between parts “STM32F429ZGT6�? and "STM32F429ZGT6TR"? W found from the datasheets,"*** = programmed parts,TR=tape and reel" .We think,“programmed parts�?should not be the same as "tape and reel".So the “TR�? really means？Can they be replaced each other pin to pin?Is the software compatible?

in RM0008 Rev 21; page 1083; Table 220. Flexible SWJ-DP pin assignment"The default state after reset is “000�? (whole pins assigned for a full JTAG-DPconnection). Only one of the 3 bits can be set (it is forbidden to set more than one bit)."I don't understand the table, which bit is responsible for which row in the table?

Hello,I am currently using STM32WB55 with QSPI external flash.Currently, the plan is to use it without Bluetooth, for now.I am able to write and read the flash in the program.The plan:Record for 24 hours with DMA from sensors to flash.Upload another program to transfer the data via serial (or with some conditional loop).The question:Is there a better way of doing this?I only need to save the data to the flash and then download them to a PC, can anyone point me to an example or tutorial for a similar case?Best regards,A.S.

I can't seem to figure out what I've done wrong. Trying to do a single ADC conversion on the STM8L051F3 using pin PC4 but I'm just getting 0xFFFFD. Here's my ADC related code can anyone spot where I've gone wrong?void ADC_Init() { CLK_PCKENR2 |= 1; //Enable ADC CLK ADC1_CR1 |= 1; // Enable ADC ADC1_CR2 = 0x04; //Sampling time = 48 ADC clock cycles ADC1_SQR1 |= 0x80; // DMA off ADC1_SQR4 = 0x80; // Configure ADC channel 4 (PC4) }   uint16_t ADC_Read(void) { uint16_t adc_res; uint16_t value = 0; uint8_t cntr;   for (cntr = 0; cntr < 4; cntr++) { ADC1_CR1 |= 2; // Start ADC conversion, by software trigger while (!(ADC1_SR & 1)); // Wait for the conversion ends adc_res = (ADC1_DRH << 8); // Get ADC converted data adc_res |= ADC1_DRL; value += adc_res; if (cntr) value >>= 1; }   return value; }

1.in the manual "AN5050", What's the meaning of "memory type"? Does this mean that OCTO only supports these four types of memory chips? The flash I used is "IS25LP064A", Does the OCTOSPI support this flash?2.How to set the "DEVSIZE"? if the flash size is 8MByte, hospil.Init.DeviceSize=23 or 22? I don't know how to set the parameter.

Hi, I have recently bricked my STM32H745i-disco board by turning off the m4 core within OB which had a bulk of my code. My board became unresponsive, the LCD turns white and the leds on the board light up but do not respond to the reset button. Stlink says cannot connect to target, but I can update firmware.I have moved over the resistor across to set boot0 to boot1, however stlink programmer still does not see the board so that I can do full chip erase. Moving the resistor has shown no difference.any help going forward would be greatly appreciated cheers

Hello,as the title suggests I would like to do step-by-step debugging on Makefile projects using STM32CubeIDE, however when I try to create the debug configuration it keeps showing an error message:Not able to get mcu targetReason:Build configuration is not valide. Described mcu target is not supported I'm on windows 10 and the target device is a nucleo L053R8. I created the Makefile project with CubeMX and imported with "Makefile project with existing code" into Eclipse.Compilation works without problems but debugging blocks as described.Then, is it possible to do debugging through ST-LINK in CubeIDE with Makefile projects?Otherwise I could use plain Eclipse, but the only GDB server I found (github.com:texane/stlink.git) does not work on my computer/os/devkit combination. Is there any other solution?Thank you,Davide.

I'm trying to generate the files for a makefile project but it's grayed out :(I am able to do it for an STM32L496, but not for the STM32U575. Is there any particular reason for this?I'm using CubeMx v6.6.1Thank you! 

Hello,does the RFID readers ST25R3911b and St25R3916b support ECP (Enhanced Contactless Polling) Apple?kind regards Peter