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Hello,I enter stop mode using HAL_PWR_EnterSTOPMode and the processor come out of this function immediately and does not wait for any external interrupt. can someone help me on this?

We're using a ST25R3916 on several projects, one of which is space constrained for the antenna. The circuit for the given antenna has been tuned up and electrically, is as good as it gets for the size.I was wondering what register settings a person can play with to maximize read range of smallish NFC-V tags for any given antenna configuration?

Hello,I am trying to get the UART to transmit some bytes with DMA. Nothing happens. RCC->APB2ENR |= (uint32_t)((1<<14)|(1<<2)); // Bit 14 USART1 clock enable & Bit 2 I/O port A clock enable   GPIOA->BRR = (1<<10); // pull-down PA.10 GPIOA->CRH &= (uint32_t)~((0x0F<<4)|(0x0F<<8)); // Clear Pin Function PA.10 & PA.9 GPIOA->CRH |= (uint32_t)((2<<10)|(2<<6)|(3<<4)); // UART1_Rx pin PA.10 Input with pull-up / pull-down & UART1_Tx pin PA.9 Alternate function output Push-pull / max speed 50 MHz uart_set_baudrate(460800,72000000); USART1->CR1 = (uint16_t)(bit13|bit3|bit2); // Enable USART1 & USART RX Interrupt enable & USART TX & RX enable USART1->SR = 0; // Reset SR   RCC->AHBENR |= (bit1|bit0); // enable DMA 1 and 2 clock   DMA1_Channel1->CCR &= ~bit0; // disable TX DMA1 Channel1 DMA1_Channel1->CCR = 0; DMA1_Channel1->CPAR = (ui

HI! I have that nfc tag: and whet i tried to read data from it st32r3916 + lib returns that:NDEF NOT DETECTED (ndefPollerNdefDetect returns 5)but tag was detected and i could read Serial Number :1. Tap a tag to read its contentISO14443A/NFC-A card found. UID: 04EEB69AE64C80NDEF NOT DETECTED (ndefPollerNdefDetect returns 4)Operation completedTag can be removed from the fieldSo is it possible to read data from that tag with st25r3916?And what's wrong with current setup?Thanks!Best regards,Matvei

Hi,It seems that there is a bug where a hard fault is triggered when dragging a finger on a dynamic graph area.I have tested this behavior on an STM32F746G-DISCO as well as on a custom board with an H743.In my case, the hard fault gets only triggered if there are enough objects on the screen and when the graph is not on the start screen. I guess it depends on the memory footprint.I have increased the project heap and stack size to 4096 and Touchgfx heap size to 8192 with no changes.I cannot see where the hard fault happens as it seems to be inside the TouchGfx library.The attached code is for an STM32F746G-DISCO.To reproduce the error, click on the central button to open screen2 with the graph is. Then drag a finger on the graph.The other buttons and the custom container are not used, they are just here because the hard fault is not triggered without them.

lis2mdl_reg.c has an error in the function int32_t lis2mdl_mag_user_offset_set(stmdev_ctx_t *ctx, int16_t *val).The function incorrectly calculates the OFFSET_X_REG_H, OFFSET_Y_REG_H, and the OFFSET_Z_REG_H registers because it converts val[0] to an uint8_t before performing the calculation. I believe the function should be modified as follows:int32_t lis2mdl_mag_user_offset_set(stmdev_ctx_t *ctx, int16_t *val){ uint8_t buff[6]; int32_t ret; buff[1] = (uint8_t) (val[0] / 256U); buff[0] = (uint8_t) (val[0] - (buff[1] * 256U)); buff[3] = (uint8_t) (val[1] / 256U); buff[2] = (uint8_t) (val[1] - (buff[1] * 256U)); buff[5] = (uint8_t) (val[2] / 256U); buff[4] = (uint8_t) (val[2] - (buff[1] * 256U)); ret = lis2mdl_write_reg(ctx, LIS2MDL_OFFSET_X_REG_L, buff, 6); return ret;}

I have external flash of size 1MB. I want to explore the possibility of having encrypted code of size 500kb in external memory and run it through OTFDEC feature of STM32L562QE.From the reference manual I saw that provision of 4 different OTFDEC regions is given ( 4 different portions in external flash with 4 different crypto keys if required). My use case is I just want a single key to encrypt whole of my code thus defining a OTFDEC region of size 500kb (is it feasible ?? )The following was also provided in the manual : Granularity for the region determination is 4096 bytes. Note:Although OTFDEC does not prevent region overlapping it is not a valid programming and it should be avoided by application software. OTFDEC can decrypt incremental or wrap bursts only if they do not cross the 4096-byte aligned address boundaries.Does above statements have any impact in my use case ? how should I handle this ? Can some one guide please

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I'm a beginner who's learned to program STM32 with Nucleos (GPIO, SPI, UART etc.) and want to try to control stepper motors now. I've purchased an X-NUCLEO-IHM03A1 board based on the PowerSTEP01 driver by ST to control a stepper motor. I've had a look at the example files and drivers but am completely lost. There are a number of long and detailed source files and there is no clear documentation on how to program this driver and interface it with an STM32. My question is then, are there any resources/docs to learn how to use/make a driver file to control a stepper motor? particularly for this module i'm using.

I would like to use a 24bit 800*480 LCD.​I ask if the value set in CUBE MX is correct.Please help.

I want to generate waveform for 8 channel WS2812 leds using STM32F103. This device uses pulse with to transfer bits.. The longer pulse means 1, the shorter means 0.. Because I want to generate 8 channel wavefrm, I configured 3 DMA's, one moves 0xFF to GPIO, one moves value from RAM to GPIO, and the third one moves 0x00 to GPIO.. The timing is generated by TIM2's CC1, CC2 and TIM2's update events.. That way, CC1 moves 1s to GPIO, CC2 moves Data to GPIO, update moves 0s to GPIO.TIM3 is connected as slave to the TIM2. In each TIM2 update, TIM3 counts up. It is configured as oen pulse, so that when TIM3 reaches ARR, it disables it self.. TIM2 is connected as slave to TIM3 as gated mode.. When TIM3 starts/stops TIM2 starts/stops as well.. This way I limit the transfers, and after final TIM2 update, which moves 0 to the GPIO, system stops until I reenable the timer.Waveform for 8 channels is generated correctly but the very first pulse is generated wrong.. It looks like TIM2 generates reques

I did check the reference manual, but it was not stated. I have also seen in an image the same core has different counts of UART. Hence I am a bit confused.

Posted on December 04, 2017 at 07:31Hi, We are planning to use SPC5 Studio as IDE for SPC56xP series microcontroller.I would like to get information on the below points regarding the SPC5 Studio.1. I understood that its free trial evaluation is available for 3 Months. I would like to know what shall be license cost after the 3 months trial period.2. Please let me know how to get the Low Level Drivers with the SPC5 Studio.3. I have also downloaded the SPC5-CRYP-LIB. Would like to know how to include it in SPC5 Studio to get the Library Code. Let me know if any manuals available to understand the points 2 & 3.Also would like to know if any NDA required to use SPC5-CRYP-LIB and SPC5 Studio.  Regards,Kavitha

I need more info about how i can read and write this MCU.Which software and programmer i need to acces to this MCU?

Hi,I am trying to use subGHz RF modules in my design. I have following questions. It would great if any one could answer these questions. I am trying to build sensor nodes + Gateway. Planning to use mesh over sub GHz.What is the difference between S2LP, SPIRIT1, SPSGRF and SPSGRFC.out of S2LP, SPIRIT1, SPSGRF and SPSGRFC which one is best suited for quick prototyping After designing the solution do we need to have FCC certifications again? even for SPSGRF and SPSGRFC.All sub Ghz radios supported by Contiki stack?Out of above transceiver modules which one provide long range with Low power. WHat is the advantage of using 3 party radios based on SPSGRF . That is, radio controli etc..I have ordered EV kits SPSGRF. I will explore more.Thanks,Naveen

HiI met a problem with generating a single interrupt after an NDEF message is written to the tag.I have managed to change the GPO register to 0b11000000, which means the interrupt should only happen when a successful RF-write is performed.However, the interrupt is generated as long as I put my phone near the tag, which based on my understanding should correspond to FIELD_CHANGE_EN=1. But I have checked the GPO register and FIELD_CHANGE_EN=0. I have also checked the interrupt signal with a logic analyzer. During NDEF message writing, there are multiple pulses generated by the chip.I don't know what is wrong, any suggestions?I have attached the main.c file in the post.Thank you guys in advance.Yuechuan

chip: F103VET6IDE version: STM32CubeIDE v1.6.0 Build: 9614_20210223_1703 (UTC)Firmware Package : STM32Cube FW_F1 V1.8.3​Lib: low layer driver​​in GPIO Configuration：​ �?GPIO output level �? generate code BEFORE GPIO_init, that makes LL_GPIO_SetOutputPin invalid.---------------------------------------------------------------------------------------------------void MX_GPIO_Init(void){ LL_GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */ LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB); LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA); /**/ LL_GPIO_SetOutputPin(GPIOB, LEDG_Pin|LEDB_Pin|LEDR_Pin); /**/ GPIO_InitStruct.Pin = LEDG_Pin|LEDB_Pin|LEDR_Pin; GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT; GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL; LL_GPIO_Init(GPIOB, &GPIO_InitStruct);}​​

hello,i use a NUCLEO-G071RB board and want to route the internal HSI16 clock to MCO pin (Pin12).First i created a board project with CubeMX and aktivated the MCO pin. Then i set HSI16 as default clock and routed the clock signal to MCO pin. After code generation and starting the programm i cant measure a signal on MCO pin.

This is a fairly high-level question... but just wondering whether the NVIC system is capable of interrupting an interrupt when one of higher priority comes in? Can someone point me to information on this?Thanks,Doug Burrell

I'm using a Nucleo-144 and have not been able to get X-CUBE-AI working in TrustZone. I'm using STM32CubeIDE and trying to add X-CUBE-AI with the software component manager (with the integrated STM32CubeMX).Interestingly, before a recent update (so STM32CubeIDE 1.5.1, STM32L5 package version 1.3.1, and I think STM32CubeMX 6.1.1), adding X-CUBE-AI wasn't even an option in the component manager with TrustZone applications, I just tried to manually add the code but it would hang once it entered the X-CUBE-AI library (NetworkRuntime520_CM33_GCC.a). After an update (STM32Cube IDE 1.6.0, STM32L5 package version 1.4.0, and STM32CubeMX 6.2.0) it's an option in the component manager but STM32CubeMX fails to generate the code (FreeMarker template error).Anyways, I'm just wondering if there are any known reasons why X-CUBE-AI should or shouldn't work in a TrustZone application. It's hard to tell if the component "support" in the latest version was on accident or if there's just a bug in the code g

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I am using STM32G030K8 and driving 3 DC motors with relays in the circuit. Also I am controlling voltage of motors with MOSFET. Most of the time its working well but sometimes when I change the direction of motor with relays MCU stops working. I am using buttons for controlling motors. If relay pins were set when it happens, pins stay set and motors still working, it is becoming dangerous. Timer or GPIO interrupts stop working. 10% of times it goes hardfault_handler, %90 of times it stops working without going hardfault_handler. What causes this? and how can I solve this problem? Thank you.

Hi everyone, I am currently working on a project working on a STM32F469I-DISCO. I would like to be able to use the embedded RTC as well as the backup SRAM. I have seen on the schematic that the VBAT pin is tied up to the 3.3V. Is there a way to still supply voltage to the VBAT pin (through the 3.3V for exemple) ?Thank you.

The MotionFX Library is initialized as follows: MotionFX_getKnobs(&iKnobs); /* Modify knobs settings */ // Configure knobs with non-default values iKnobs.output_type = MFX_ENGINE_OUTPUT_ENU; iKnobs.modx  = 1; // No decimation iKnobs.ATime = 10; // kalman_settings.static_accel_time_coeff; iKnobs.FrTime = 10; // kalman_settings.dynamic_accel_time_coeff; iKnobs.LMode = 1; // Enable gyro bias calculation during static motion iKnobs.gbias_gyro_th_sc_6X = 0.0036; // Per datasheet, this is empirically determined  MotionFX_setKnobs(&iKnobs);When new data arrives, it's processed like this: MotionFX_propagate(&data_out, &imu, &delta_s); MotionFX_update(&data_out, &imu, &delta_s, NULL);Interstingly, if instead I first make the left-hand rotation, it has no significant error, but after making the right-hand rotation, a similar ~3 degree error is detected.Each time motion occurs in the direction in which the error is present, the error increa

In specific circunstances (power available, ...) I want to put the MCU in STOP2 mode. That decision is taken on a FreeRTOS task. I've tried some approaches but the MCU didn't stop at all. Is there any example available using FreeRTOS? The code I'm using (not working) is the following: /* suspend scheduler*/ vTaskSuspendAll();   /* disables Interrupt requests, interrupts will still be able to wake up the system*/ __disable_irq();   __HAL_RCC_PWR_CLK_DISABLE(); __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);   HAL_SuspendTick(); HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI); HAL_ResumeTick();   /* System sleeps here*/   __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU); /* on wake up, restore system clock*/ HAL_RCC_DeInit(); SystemClock_Config();   /* check interrupts now*/ __enable_irq();   /*resume scheduler*/ xTaskResumeAll();Do you have any suggestion to change? In the final code I want it to be able to wake up when some pins c