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Posted on October 10, 2017 at 21:50 Do CS_XL and CS_MAG have an internal pulldown so if they are left floating there are no issues?Will it hurt the part if INT_1_XL and INT_2_XL are connected to 0V as long as we don�t try to use them? What happens if we do tell them to be used will this hurt the part? #lsm303agr

Posted on October 11, 2017 at 12:26Hi, I am using package Stm32l4 1.9.0 package on Linux with Stm32CubeMX to generate workbench project. It seems there is naming problem, since folder in downloaded repository is named 'STM32Cube_FW_L4_V1.9.0/Middlewares/Third_Party/FatFS'while it should be 'STM32Cube_FW_L4_V1.9.0/Middlewares/Third_Party/FatFs'This causes problem during build and code generation. Repository was updated using CubeMX. Can somebody replicate this, or is something wrong with my configuration? I hope i am not duplicating this issue. Best Regards, Miha 

Posted on October 10, 2017 at 16:26Hello!I'm using XPC56xL minimodule on the XPC56XX motherboard.I slightly modified the SPC56ELxx OS-Less ADC Test Application to print the ADC conversion values on the UARTThe issue I noticed is that the value of the conversion is not stable: for example if I print 15 measures (all of them done without changing the trimmer position) I get the following result (in hexadecimal):ADC Value:278279274278277274272272275278276274276276278276So it seems that the 4 least significant bits are given only by the noise. Since i read on the reference manual that the ADC has 12 bits resolution, i would like to know if there is a strategy to keep those bits stable.Thank you in advance!kind regards,Fabio

Posted on September 18, 2017 at 04:08Hello, when I use IAP in stm32f103vct6, sometimes some of them could not 'erase sectors' , and J-link could not 'erase sectors' to these board too. But I could use 'erase chip' to these board, and then  'erase sectors' could be used. Why and how to deal with it? How could i to aviod this happening?Thanks

Posted on November 15, 2015 at 16:31Hi, when CubeMX generates code, it is intended by 2 spaces. Ist there the possibility to change this behaviour to get a tab character instead. I searched in the forum and googled for a while but unfortunately, I didn't find any solution for that. I should have this due to some company policies. And, please, do not open a new scene in the holy war about tabs/spaces. I know this quite well and there are (dis)advantages for both versions. It's just, I'm bound to the tab side... ;) Thanks in advance! Have a nice day, Bernhard

Posted on October 12, 2017 at 23:55Hardware and Software Versions:MCU: STM32F767ZI Nucleo BoardEn X Cube CryptoLib V3.1.0Cube MX Version 4.22.1Latest System Workbench 6 installation.Problem:Using AES 256 in CBC mode attempting to encrypt block of data on the Host which is the PC, and decrypt that same block on the MCU using the CryptoLib. Encryption on host is done correctly, decryption of the first block of data is done correctly on the MCU, but decryption of the second block of data fails(Bytes 16-31). Below is my test code.uint8_t KeyTemp[32]; uint8_t KeyIvTemp[16]; uint8_t DataRaw[32]; uint8_t DataEncrypted[32];for(int i = 0; i < 32; i++) { KeyTemp[i] = (uint8_t)i; DataRaw[i] = 0; } for(int i = 0; i < 16; i++) { KeyIvTemp[i] = (uint8_t)i; } DataEncrypted[0] = 242; DataEncrypted[1] = 144; DataEncrypted[2] = 0; DataEncrypted[3] = 182; DataEncrypted[4] = 42; DataEncrypted[5] = 73; DataEncrypted[6] = 159; DataEncrypted[7] = 208; DataEncrypted[8] = 169; DataEncrypted[9] = 243; Da

Posted on October 11, 2017 at 22:16Hi,I'm very confused on how to use the HAL ADC Generic Driver. I configure the ADC using STM32Cube with all the default settings.Now I want to start the ADC and handle the interrupt. Looking into the http://www.st.com/content/ccc/resource/technical/document/user_manual/2f/77/25/0f/5c/38/48/80/DM00122015.pdf/files/DM00122015.pdf/jcr:content/translations/en.DM00122015.pdf I read:1 - ADC conversion by interruption:1.1 - Activate the ADC peripheral and start conversions using function HAL_ADC_Start_IT()1.2 - Wait for ADC conversion completion by call of function HAL_ADC_ConvCpltCallback() (this function must be implemented in user program)1.3 - Retrieve conversion results using function HAL_ADC_GetValue() Stop conversion and disable the ADC peripheral using function HAL_ADC_Stop_IT()However STM32Cube had generated a IRQ Handler for adc on stm32f0xx_it.c:/*** @brief This function handles ADC interrupt.*/void ADC1_IRQHandler(void){   &n

Posted on September 22, 2017 at 09:07HELLO I USE STM32F100RBI WANT write and read from flash mem :static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data);static HAL_StatusTypeDef test3;/********************FLASH MEMORY******************************/ //WRITE DATA TO FLASH MEMORY/* Unlock the Flash to enable the flash control register access *************/ HAL_FLASH_Unlock(); /* Unlock the Options Bytes *************************************************/ HAL_FLASH_OB_Unlock();FLASH_PageErase(0);//uint32_t PageAddress HAL_FLASHEx_OBErase(); test3=FLASH_OB_ProgramData(0x080000FFU,0x12);//HAL_FLASH_OB_Launch();//reserts the systemHAL_FLASH_OB_Lock(); HAL_FLASH_Lock(); //READ THE DATA FROM FLASH MEMORY flash_data=HAL_FLASHEx_OBGetUserData(0x080000FFU);/********************FLASH MEMORY******************************/but the software doesnt compileSDT_LCD_KEYPAD\SDT_LCD_KEYPAD.axf: Error: L6218E: Undefined symbol FLASH_OB_ProgramData (referred from main.o). ?????is there s

Posted on October 11, 2017 at 21:49Hi,The STM32CubeMX repository has discovery board example projects for using QSPI flash.These example projects extern two variables:#if defined(__CC_ARM)extern uint32_t Load$$QSPI$$Base;extern uint32_t Load$$QSPI$$Length;Where are Base and Length defined and initialized?Thanks.STM32Cube\Repository\STM32Cube_FW_F7_V1.7.0\Projects\STM32746G-Discovery\Examples\QSPI\QSPI_ExecuteInPlace\Src\main.c

Posted on October 11, 2017 at 11:54Main target is to send an ADC-value to the CAN-BUS.I took the SPC570xx_RLA CAN Test Application for DiscoveryModified Pin Settings:in main.c I tried to initialize and use the ADC:Without ADC-code CAN example works fine.But if I try to get Access to the ADC-regs, System crashes:The system always stays at the _IVOR1 after SAR_ADC_12BIT_B0.xxxxx = x command.My hardware is the SPC570S-DISP-Board.What do I wrong?#adc #spc570s #spc570s-adc

Posted on September 26, 2017 at 09:23I use a CR95HF with UART communication. I make the startup sequence with t0= 200 us. I have 30 boards with CR95HF. One of them don't communicate with my microcontrolleur. I change t0 = 250 ms and after this operation, the communication begin. Why ?Can I find a startup sequence with the typical values and maximal values ?I have a second problem.I want use the calibration process to increase the lenght of reception but this command don't send response.With the other commands, I receive a response.Why ?How much the calibration increase the lenght ? (millimeters or centimeters)

Posted on October 08, 2017 at 06:56I am attempting to communicate with a LIS3MDL through the SPI interface, yet I am unable to get a single, valid response back. Moreover, the responses I am getting violate the setup and hold times on the SPI interface. You can see from the following image that I am attempting to read from the LIS3MDL's WHO_AM_I register (address: 0x0F; expected: 0x3D), but I am getting garbage out. Moreover, the output from the LIS3MDL is transitioning at the rising and negative edges of SCLK! I have the LIS3MDL breakout board (STEVAL-MKI137V1) so I expect the hardware should be solderd properly. Any other suggestions or anyone having a similar issue? #spi #lis3mdl #who_am_i

Posted on October 10, 2017 at 11:31Hello,I saw on the STM32L0 User Manual that FIFO mode and its threshold can be configured thanks to HAL_DMA_Init().For a given stream, HAL_DMA_Init() API allows programming the required configurationthrough the following parameters:- Transfer Direction- Source and Destination data formats- Circular, Normal or peripheral flow control mode- Channels Priority level- Source and Destination Increment mode- FIFO mode and its Threshold (if needed)- Burst mode for Source and/or Destination (if needed).But I don't find where I can enable it and choose my threshold as I never used DMA before ?

Posted on September 25, 2017 at 12:41Hi guys!I'm a completely newbie to the STM32 and to make some experiments I've bought a nucleo 32 board based on the STM32L011K4 microcontroller.Then I've downloaded and installed the Atollic TRUEStudio, the STCubeMx and the STM32L0 libraries.Then I've generated a simple project just to see the increment of a variable into the main loop.The things I've done to generate the project are just the choice of the corresponding board and the setting of the TrueStudio as used toolchain.Once made, compiled and downloaded the code I see that the debugger doesn't start at the first instruction of the main function but it jumps to the hal initialization where it gets lost.Is there any other setting I need to do in the MXCube.It is not enough to choose the board and the developement tool to get a simple working main loop?I don't need to use any other peripheral.Is there anybody willing to give me some advice.Thank You very muchAntonio

Posted on October 07, 2017 at 20:45Hello,I am using a Pololu Minimu9 v5. I successfully did a self test of the LIS3MDL 3-axis magnetometer and now I am trying to self test the LSM6DS33 with the procedure mentioned in the application note. My test appears to fail each time. I don't know if it is my method or if the sensor has malfunctioned. What is the proper implementation of the self test? Is there anything you can do to readjust sensor to optimal functionality?#self-test #lsm6ds33 #accelerometer

Posted on October 05, 2017 at 10:47I am evaluating the use of the SPBTLE-1S module, based on BlueNRG-1 and Bluetooth v4.2 compilant, to interact with iOS. BLE 4.2 specification includes data length extension feature which improves throughput and reduces transaction time. However, according to documentation, only BlueNRG-2 supports BLE extended packet length feature. Is it possible to upgrade BLE stack embedded software (library managing the RF part) with a version wich extends the possible MTU size up to 158 bytes?Thank in advance.

Posted on May 17, 2017 at 09:06For our application we use a USB Host to communicate with a HID class device. We've constructed a way to measure the state of the device by measuring the Impedance on the USB datalines. This requires that the datalines are in a high impedance state. Our problem is that we cannot put the USB datalines in a high impedance state after the USB Host has been initialized.It seems that, once the USB has been power the pull-downs can only be disabled trough a reset.The USB de-iniitialization function does not affect the GPIO.  It seems they cannot be re-configured to something else.Is there a way to properly disable the USB and return the original GPIO functionality to these pins?We use STM32CubeMx Together with Atollic truestudio.#usb-host #stm32

Posted on October 05, 2017 at 13:39The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on March 07, 2017 at 16:12In UM1472 rev.5, Table 6. STM32 pin description versus board functions, the Free I/O column as it is now is dysfunctional.It has an interesting history: the pins respective to individual functions (including free) used to be marked by highlighted (greyed) background in the given table cell, in rev.1. In rev.2, empty cells got filled by '-' marks, including the greyed-out cells which were in fact used. Then, somewhere along the line to rev.5, the highlights disappeared.Please mark clearly the Free I/O pins in that table.JW

Posted on October 03, 2017 at 22:14 I combined the code from STM32F746 discovery Template and ADC code from Cube for 746 Discovery. Something is missing allthough I checked the code several times. I use ADC3 input 6 because it is connected to a pin of Discovery board. #include 'main.h' #include <stdio.h> #include 'stm32f7xx_hal.h' #include 'stm32746g_discovery.h' #include 'stm32746g_discovery_lcd.h' #include <stdio.h> #include <string.h> #include <limits.h> //#include 'stm32f7xx_hal.h' #include <stdlib.h> #include 'stm32746g_discovery_ts.h' /** @addtogroup STM32F7xx_HAL_Examples * @{ */ /** @addtogroup Templates * @{ */ #include 'stm32746g_discovery_lcd.h' #define LCD_FRAME_BUFFER SDRAM_DEVICE_ADDR #define RGB565_BYTE_PER_PIXEL 2 #define ARBG8888_BYTE_PER_PIXEL 4 double ccc,kkk; TS_StateTypeDef TS_State; DMA2D_HandleTypeDef hdma2d; I2C_HandleTypeDef hi2c3; LTDC_HandleTypeDef hltdc; UART_HandleTypeDef huart1; DMA_HandleTypeDef hdma_memt

Posted on October 05, 2017 at 12:36Hello community,Even though the RM0351 mentions the availability of IRTIM, the datasheet for STM32L475 does not mention anything about it. RM0351 is for both STM32L4x5  and STM32L4x6 and STM32L476 datasheet mentions IRTIM.So does STM32L475 have the IRTIM functionality or not?Best Regards,Mete#stm32l4 #stm32 #infrared #irtim #stm32l475 #stm32l476 #stm32l

Posted on October 02, 2017 at 11:07Hello!I use cube usb library for usb_otg_fs mode wit STM32L467. I would like to use DM and DP pins also as GPIO INPUT PULL UP when usb is not used.After usb connection closed, I do the following:1) I use functions USBD_Stop and USBD_DeInit2) Disable usb_otg_fs clock2) Initialize DM and DP pins as GPIO INPUT PULL UPBut after these operations I cannot see high logic level on these pins. Maybe I didn't clear all necessary registers in usb_otg_fs? How should I properly deinitialize usb interface for using DM and DP pins as gpio?Thank you#stm32l4-usb #usb

Posted on October 02, 2017 at 14:52When code is copied to RAM (for example the code for rewriting internal flash)  how the RAM is allocated? Is it allocated statically or just uses any free space remaining below the stack? I cannot find this in the documentation.

Posted on October 04, 2017 at 07:37Hello All,Is it possible that STM32L072 can be programmed/debugged through USB?  It would be nice if somebody could share reference to the possible ways the micro-controller can be programmed/debugged.Best Regards,Sarang#stm32l072

Posted on September 27, 2017 at 14:16Greetings community,I am developing an IR learning hardware that can transmit its learned IR codes as well. For the transmitter part, I will be using the IR_OUT pin (PA13).For the receiver part, from AN4834, I understand that a General Purpose Timer needs to be configured in PWM input to capture incoming demodulated IR data. The STM32L4 has 3 x GP Timers, namely TIM15, TIM16 and TIM2, As TIM 15 and TIM 16 are used for the modulation of the transmitted Infrared signal, that leaves me only with TIM2 to be used for my specific purpose.That brings it to my question; which pin should I connect the demodulated infrared signal at STM32L4 so I can use TIM2 as PWM input to capture the data stream.Best Regards,Mete#general-purpose-timers #tim2 #tim #ir #pwm #ir_out #tim16 #stm32l4 #infrared