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Posted on February 22, 2017 at 22:05Hi,I'm working on a stm32F101CBT6.The board has a 16 MHz HSE (connected to PD0.PD1) and a 32.768 KHz LSE (connected to PC14/PC15).The board will use SPI1, SPI2, USART1, USART2, I2C1 and a few GPIOs.I've worked with ST microcontrollers before, but never had to configure the clocks, so I'll be probably asking some naive questions, please be gentle... I do know that external oscillators are much more precise than the internal ones.When creating a new project with CubeMX, it defaults to HSI and LSI.If I enable MCO (PA8) and listen with an analyzer - I get 8 MHz. That seems correct.1. If I configure the clock configuration, via CubeMX, to use HSE with 16 MHz (the board schema says 16 MHz) - I see on MCO 16.67 MHz. Is that correct?2. What is the logic, the aim of playing with the PLL, and - should I use it?My common sense says I should aim for the highest frequency in the SYSCLK and the buses.I've attached my CubeMX project file, if it helps.Thanks#hse-hs

Posted on February 22, 2017 at 07:00Hi Team,I am using SPC560b-Discover board IDE-SPC5 Studio, version: 5.2.1I want to find if any memory corruptions in Flash(dataFlash or CodeFlash) and RAM.Can you please help me to find the ways of memory corrupt happened,As i know there will be one stranded  way to find is enable ECC or by default it will be enabled,If ECC is only the way,how to enable the ECC in SPC560B family MCUs,If ECC is enabled how we will come to know there is memory corruption is happened.---Thanks in advance,Thanks & Regards,Mujeeb Shaik. 

Posted on February 19, 2017 at 09:48I'm wondering where to find reference manual for STM32F72 and STM32F73 chips? I was able to find the datasheets - directly from the site of the particular chip - but the reference manual is not available from the general STM32F7 page, from specific chip pages and not found with the site search.For a while I was thinking that these chips are not available at the moment, so the lack of reference manual wouldn't be a problem, but I see that I can buy a NUCLEO board with STM32F72 without any problems, which contradicts that theory (; The chips are also supported by the most recent Cube for STM32F7.Any ideas? I've started implementing support for STM32F7 in the C++ RTOS I'm working on ( http://distortos.org/  ), and I'd really like to cover as much as possible - it's easier to add more chips at the beginning than to add only some of them and later add more variations (especially when you can expect some differences like in this case).#stm32f72

Posted on February 22, 2017 at 14:32Hello, I am currently using the STM32L432KCU6 and I am finding a bottleneck when streaming from the UART.  I need around 1MBaud but according to the datasheet the STM32L432KCU6 max is 200kBaud.  At what family of STM32 can I find a faster baud rate on the UART.  Is there a near drop in replacement for the STM32L432KCU6 that can handle this?Thanks

Posted on February 22, 2017 at 14:51Hi,I am currently working with STM32F779. Are there any STM32F779 BSP drivers for the LCD as there were in STM32F769? If not, where can i find any relevant example?I would appreciate any assistance.Regards,Ioannis#stm32f779-cubemx-hal #stm32f779 #bsp

Posted on February 20, 2017 at 16:46Hi,We are designing a project where we would like to use the default bootloader on a LIN connection.The MCU we plan on using is the STM32F030RC, with external LIN-driver.The LIN-driver merges Tx & Rx, so everything send will be visible on the Rx.How does the UART bootloader respond to its own ack/nack or data?Does it get in a loop where it nack's its own data because it is not a known command?Thanks in advance!#stm32f030 #lin #bootloader

Posted on February 09, 2017 at 17:23Hi, I am trying to use the code generated by Cube including freertos for an STM32F2xx device. I uses the latest tool (cube 4.19 and Firmware package 1.14). After generating the code i changed  the compiler setting in IAR to c++ code.my problem is that I cannot link the code as the function defined in assembly is not defined as extern 'C'.extern void vPortStartFirstTask( void );When I change the code I can link my project but next time I generate my code the file port.c is replaced and my modification are erased.is there another solution to fix this?Thanks

Posted on February 16, 2017 at 11:39Hi,I need Help regarding time base.I found one of the example and tried to modify that for STM32 F4 Discovery board.I want to count number of external pulses by using TIM4 in 1.13 ms. So the time base is configured to generate interrupt after each 1.13 ms (as the read_me file states). the code is generating interrupt but it is not after 1.13 ms. can any body help me in this matter. I have attached the files for your review. Thanks in Advance  #clive #clive1 #stm32-stm32f4

Posted on February 16, 2017 at 20:44// Configure timer 2    RCC_APB1ENR.TIM2EN = 1;    TIM2_CR1.CEN = 0;    TIM2_CR2.TI1S = 0;    TIM2_PSC = ENCODER_TIM_PSC;    TIM2_ARR = ENCODER_TIM_RELOAD;    TIM2_CR1 |= 0x10;// Configure input capture    TIM2_CCMR1_Input |= 0x01;    TIM2_CCER.CC1P = 0;    TIM2_CCER.CC1NP = 0;    TIM2_CCER.CC1E = 1;    TIM2_DIER.CC1IE = 1;Question: how do I define input PC1 as TI1 for timer 2thanks!#period-measurement

Posted on February 20, 2017 at 21:22We are using STM32F437 and need to implement UDP/IP using lwIP.lwIP manual UM1713 makes at least three references to source code. In section 1.4: \Middlewares\Third_Party\LwIP,in section 4.1.2: \LwIP\LwIP_TCP_Echo_Serve,and in section 5.1: Projects\STM324xx_EVAL\Applications\LwIP\I have searched ST.com and looked in STM32F4x7_ETH_IAP_V1.0.0 and STM32F4xx_DSP_StdPeriph_Lib_V1.8.0 but have not found these directories. Would appreciate some help finding this code.Thanks,jh

Posted on February 20, 2017 at 20:04I am trying to synchronize the RTC of a NUCLEO-L476RG board to a GPS.  I am using the 1PPS signal from the GPS to generate a timestamp.  I then use the LL_RTC_TIME_Syncronize function to adjust the subsecond counter.  I read the subsecond register right after that and I can see the value changes.  But each 1PPS time stamp occurs at almost the identical count on the subsecond register.  It is not exactly the same, so I know that the timestamp is occurring.Here is the interrupt routine:void TAMP_STAMP_IRQHandler(void){/* USER CODE BEGIN TAMP_STAMP_IRQn 0 *//* USER CODE END TAMP_STAMP_IRQn 0 *//* USER CODE BEGIN TAMP_STAMP_IRQn 1 */// printf('\r\nTime Stamp IRQ Handler\r\n');/* Get the TimeStamp interrupt source enable status */ if(LL_RTC_IsEnabledIT_TS(RTC) != 0){/* Get the pending status of the TIMESTAMP Interrupt */ if(LL_RTC_IsActiveFlag_TS(RTC) != 0){/* TIMESTAMP callback */TimeStampEvent_Callback();/* Clear the TIMESTAMP

Posted on February 16, 2017 at 15:49Hi,I am having trouble to synchronize the start of two or more timers at the same time. Reading the manual, I figured out that, I have to select one timer as master timer with master configuration 'Enable' ('the counter enable signal is used as a trigger output (TRGO). It is used to start several timers at the same time, ...').The slaves are configured in slave mode 'Trigger mode' ('the counter start at a rising edge of the trigger TRGI (but is not reset). Only the start of the counter is controlled.').When I start the master timer with a delay, I expect the slave timer to start with the same delay. But the slave does start immediately. This is how my test code looks like: HAL_TIM_OC_Start(&htim4, TIM_CHANNEL_2); HAL_Delay(1000); HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_4);My master/slave configuration for the timers looks like this:void MX_TIM3_Init(void) {    ....    sMasterConfig.MasterOutputTrigger = TIM_TRGO_ENABLE

Posted on February 20, 2017 at 10:47Hi, I  have troubles with getting a ILI9341-Display to work with my STM32L4. It's a 'TFT Proto Board' from MikroElectronika. I need to test SPI but the Initialization is not working, tried different Examples, mostly based on the Init-Example from MI0283QT-9A-DataSheet (Name of the LCD-Modul).As far as I understand, the Read-Information-Commands 0x04, 0x09, 0x0A, 0xDA, 0xDB, 0xDC should work even without Initialization directly after a Hardware- / Software-Reset. But the TFT is not responding to them.There are Differences in the Pin-Layout of Documentations and the Labels on the PCB. I used the PCB-Labels for Connections. On the PCB-Backside is only the IM-Mode 010X given as SPI-Variant. Relating to the ILI9341-DataSheet this should be 3-Wire 9-Bit-SPI and the X should be 1. Ok, but this does not work. Don't really know if the Display also supports the other IM-Modes as defined from the ILI9341-Spec. Maybe they are not routed 1:1 ... I also trie

Posted on February 20, 2017 at 11:34Hello,I have bought STM3220G-EVAL board (model number MB786) and I am not surewhich ADC module is used for potentiometer RV1 voltage sampling. I have foundthat the potentiometer is connected to PF9 pin and I have found in the datasheetCD00237391 on page 48 that PF9 pin is probably connected to ADC3 modulechannel 7. Can anybody confirm to me that it is right? Thank you in advance.

Posted on February 17, 2017 at 10:33I am using STM32F4 micro controller and few GPIO pins i am making as input pins for sensor input staus and few as output pins to activate the LEDs. As soon as i configure few pins as input pins for sensor, few out pins for LED drive stop working, I am confuse, what could be the reason, software or hardware?

Posted on February 20, 2017 at 00:30I am trying to implement FSMC in order to drive an ili9341 LCD in 8080 mode. However to distinguish between command and data I need to toggle the RS(register select pin) which according to reference manual AN2790 should be connected to pin Ax. It appears that the Ax pin is just always LOW, and I don't know how to toggle it. I am using HAL_SRAM_Write8b(&hsram1, (uint32_t *)0x60000000, buff, sizeof(buff)); and it appears to work as I can toggle the LCD display on and off, which leads me to beleave that it recognises commands I just need to toggle Ax HIGH so that I can send paramaters.I am using an stm32f407vgt6.#stm32f4-discovery #lcd #fsmc #tft #sram

Posted on February 17, 2017 at 17:56Hi.I've been using 4 channel ADC DMA convertion and recently noticed that one of the inputs affects the read values of another. The troubleshouting showed that the voltage on Channel 15(PC5) somehow gets to the other ADC pins.Interestingly, I see the read values be affected only on one channel (2,PA2). However, I see the voltage change on all other ADC channels when I change voltage on PC5.  With 0.3-3V input swing on PC5, I have almost the same swing on the other ADC pins, if they're not connected to anything, and 8mV swing if the pins connected through opamp buffer and 100ohm.Did anyone faced a similar problem? This is a second prototype board out of two which exhibits this behaiviour.void ADC_Config(){    ADC_InitTypeDef       ADC_InitStructure;  ADC_CommonInitTypeDef ADC_CommonInitStructure;  GPIO_InitTypeDef      GPIO_InitStructure;  DMA_InitTypeDef  

Posted on January 31, 2017 at 16:30Hi All,I m trying to use I2C on STM32F104. Here is my init code. I am not able to read an EEPROM. To test I sent data (I2C_SendData(I2C2, (uint8_t) 0x100);) in a loop (with a small delay), and monitored SCL and SDA pins on scope. There are absolutely no pulses on the pins. What could be wrong with the code? I await your help. Thanks.void Config_I2C2 (void){    GPIO_InitTypeDef GPIO_InitStructure;    I2C_InitTypeDef I2C_InitStructure;    GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;    GPIO_Init(GPIOB, &GPIO_InitStructure);    GPIO_PinAFConfig(GPIOB, GPIO_PinSource10, GPIO_AF_I2C2);    GPIO_Pin

Posted on January 12, 2017 at 08:34hiI'm using CubeMX 4.18.0 recently.by the way, Every time An error occurs when creating a TrueStudio project using the CubeMX 4.18.0.Please, help.#cubemx #truestudio

Posted on February 14, 2017 at 06:00Hi All,I am asking a follow up question to my https://community.st.com/0D50X00009XkYInSAN. Now that I am able to write in a certain flash location, I would like for it to not be overwritten every time I program the board. Is it possible and if so, can anyone point me in the right direction for the necessary changes?I am currently on a STM32L432KC working within Atollic TrueSTUDIO 7.0.1.Thanks!null

Posted on February 15, 2017 at 15:11  I've not been able to get the Audio Recorder in the demonstration software working. I'm using V1.2 of the software, as supplied with Cube V1.6.0.Test:Compile Demo V1.2 in Cube V1.6.0 using Eclipse 4.6.2 / Ac6 SystemWorkbench.Program the board with the software. (The first time I did this I used the STM32 ST-LINK Utility with the MX25L512G_STM32F769I-DISCO external loader so as to program both the software and the quad SPI flash images data. Thereafter, I programmed the board directly from Eclipse by starting an OpenOCD debugging session).Insert a USB drive that is known to work with the Audio Player. (I've found that not all USB drives are compatible).Reboot the board.Click 'Audio Recorder'.Click the circular Red button.When I do this, the red button goes blue and the software hangs (including the UI and the USB driver) until the board is rebooted.I've tried debugging the recorder and found that:HAL_DFSDM_FilterRegularStart_DMA at line 15

Posted on February 16, 2017 at 10:57Hi ! I want to use STM32L071C8T with 64kbyte flash. But when I see the datasheet, there is 2 bank (32kb each) in the flash and if I am not using dualboot, program is read in bank1. But I am wondering that, if my program is 50kbytes, is there a problem for the STM that some of the program is in bank2 ? Or my whole program need to stay in only one bank ? (I am not using dual boot)Thanks.#flash

Posted on February 16, 2017 at 09:38Hi All, Can you please share sample code for CAN - FD drivers for SPC58EC80E3 micro controller at the earliest. Looking forward for your response. Thanks in advance.

Posted on February 16, 2017 at 08:14Hi All,Can you please share sample code for CAN - FD drivers for SPC58EC80E3 micro controller.Looking forward for your response.Thanks in advance.

Posted on January 06, 2017 at 05:39 I have a custom LCD that I am trying to drive with theSTM8L052C6. I have tested the LCD with 2 other MCUs and it works fine. However, when I try to drive it with the STM8, it is very dim and almost not visible. I probed the pins on another MCU that works and compared it with the STM8 trying to drive it. This image shows the STM8 vs a working MCU. For some reason, the STM8 will drive to the correct voltage briefly then will drop. I'm not sure what could be causing this. I have tried to change parameters in almost every LCD related register. Any ideas would be greatly appreciated. I've been stuck on this for quite some time. Here's my code to test the LCD: CLK_CRTCR = 0b00000100; //RTC(LCD) uses LSI clock, Div CLK by 8 CLK_ICKCR |= 0b100; //Turn on LSI clock while(!(CLK_ICKCR & 0b1000) ); CLK_PCKENR2 |= 0b1100; //Enable clk to LCD. 0b1100 AND RTC LCD_CR1 = 0b110; //Set Blink off, 1/4 duty cycle, 1/3 bias LCD_CR2 = 0b11101110; /