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Hello,my STM32F103C8T6 is being used for driving LCD display (ST7789, SPI2). Images are stored in the external FLASH memory (GD25Q16C, SPI1).I am looking for an efficient way to transfer images from external FLASH to the LCD. In order to read data from the FLASH, I have to send start address, and then keep sending dummy bytes (so the chip increments address before sending new byte). So far, I have managed to do the following procedure:-tell LCD, that incoming bytes will be pixel colors,-send start address to the External Flash chip-send dummy byte, receive corresponding pixel color, send it to the LCD. Repeat 115200 times (1PAGE = 240x240x2bytes)**LCD displays image**I would like to improve this process, for example by using DMA in following way:-tell LCD, that incoming bytes will be pixel colors,-send start address to the External Flash chip-enable SPI1 (flash) DMA transmit channel: send dummy byte 115200 times,-enable SPI1 (flash) receive channel: receive data and put it into SPI2 (l

I'm trying to compile a simple Simulink model (TIM6 timer that toggles the PA5 pin, configured as GPIO_Output).I get this error while compiling in IAR :"Warning[Pe223]: function "__HAL_TIM_SetAutoreload" declared implicitlyHowever, if I use an another MCU (like the STM32F407VGTx) configured in the same way, I don't get that error!Here's the source code generated by Simulink : * File: TIM_nuc.c * * Code generated for Simulink model :TIM_nuc. * * Model version : 1.33 * Simulink Coder version : 8.14 (R2018a) 06-Feb-2018 * TLC version : 8.14 (Feb 22 2018) * C/C++ source code generated on : Fri Aug 3 20:24:47 2018 * * Target selection: stm32.tlc * Embedded hardware selection: STMicroelectronics->STM32 32-bit Cortex-M * Code generation objectives: Unspecified * Validation result: Not run * * * * ****************************************************************************** * * attention * * * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

Hi all, I am new to USB communication so please forgive my imprecisions. I am using the discovery board STM32F469I-DISCO. I have been able to establish serial communication through the programming port (the port connected to the ST-link/V2-1) using usart3 as it is its default configuration. I would like to do the same using the USB OTG FS integrated. Is it possible? If so, how can I achieve it? In other words how do I make the board show up as a virtual com port and communicate through USART using the USB OTG FS port?Thank you,Frank

Posted on February 22, 2017 at 15:30I'm trying to install STM32CubeMX on Win10 64bit.I know I have Java Version 8 Update 121 installed and I'm sure it's working (since I'm using it).Now when I invoke SetupSTM32CubeMX-4.19.0.exe a window pops open after a couple of seconds saying:STM32CubeMX InstallerThe registry refers to a nonexistent Java Runtime Environment installation or the runtime is corrupted.And that is it.It doesn't say which Java Version it's looking for nor does it say which one it finds (corrupted).Can somebody help, please??#stm32cubemx #stm32cubemx-install #stm32cubemx-java

Hello, I am using timer 6 and generating interrupts for every 1s.it works fine when i dont enable the sleep on exit feature. but if i enable sleep on exit feature, after the first timer interrupt , processor goes to sleep and the next timer interrupt unable to wake up the processor. the timer isr doesnt run. Please help

Posted on July 09, 2018 at 19:25Hi,I can't find stm32l4xx_ll_tim.h file from CubeMX generated code. The only place I can find this file is a zipped file download from ST.com. I am guessing this is a Cube issue, right?STM32Cube_FW_L4_V1.11.0Thx

Posted on June 16, 2018 at 13:49Dear All,   I am working on STM32F4Doscovery board timers. I want to make a timer interrupt for an application. It can be 1sec or 500ms interrupt. I have read the datasheet and written the program accordingly. But i dont know how to use interrupt in STM32. I have tried something, but nothing is happening. Can someone suggest me a solution??&sharpinclude 'stm32f4xx.h' // Component selectionvoid GPIO_Init(void);void tim10_init(void);int main(void){ GPIO_Init(); tim10_init(); while (1) { GPIOD->ODR|=(1<<15);}}void GPIO_Init(void){ RCC->AHB1ENR|=RCC_AHB1ENR_GPIODEN; GPIOD->MODER|=(1<<28); // pin 14 is output GPIOD->OTYPER&=~(1<<14);//pin 14 as push pull GPIOD->OSPEEDR|=(1<<29)|(1<<28);//LOW speed GPIOD->PUPDR&=~(1<<29)|(1<<28);//No push pull GPIOD->MODER|=(1<<30); // pin 15 is output GPIOD->OTYPER&=~(1<<15);//pin 15 as push pull GPIOD->OSPEEDR|=(1&lt

I tried to use the STM32CubeMX to configure DAC to work with DMA which would enable me to transfer data from memory, all clocked by TIM6. I used same configuration for STM32F334 and it worked without any problems. After I never got this working, I tried to add another request in DMA configuration menu and discovered this, which looks like some kind of bug, because I haven't found anything like this in reference manual. I believe that STM32CubeMX is not optimized for STM32H7 enough and it looks like this is also the reason why my code wouldn't work with this model.Thank you for reply.

Is there something else that I am missing? I have followed the instructions in UM1884 and RM0394, but after writing to BKP0R, it still reads zero (even with NoErase).0x40021058: 1006c401 1 RCC_APB1ENR1_PWREN 0x40007000: 00000300 1 PWR_CR1_DBP 0x40021090: 00008200 2 RCC_BDCR_RTCSEL 0x40021090: 00008200 1 RCC_BDCR_RTCEN 0x40002840: 000000a0 1 RTC_TAMPCR_TAMP3E 0x40002850: 00000000 0 RTC_BKP0R HAL_PWR_EnableBkUpAccess() __HAL_RCC_RTC_ENABLE() 0x40021058: 1006c401 1 RCC_APB1ENR1_PWREN 0x40007000: 00000300 1 PWR_CR1_DBP 0x40021090: 00008200 2 RCC_BDCR_RTCSEL 0x40021090: 00008200 1 RCC_BDCR_RTCEN 0x40002840: 000000a0 1 RTC_TAMPCR_TAMP3E HAL_RTCEx_BKUPWrite(hrtc, 0, 0x12345678) HAL_RTCEx_BKUPRead(hrtc, 0) = 0x0 0x40002850: 00000000 0 RTC_BKP0R > > md 0x40002800 0xd0 0x40002800: 08 08 00 00 01 21 00 00 00 00 00 00 27 88 00 00 .....!......'... 0x40002810: FF 00 7F 00 FF FF 00 00 00 00 00 00 00 00 00 00 ................ 0x40002820: 00 00 00 00 00 00 00 00 C4 00 00 00 00 00 00 00 ..........

Posted on February 17, 2017 at 12:29I want to have 60 MHz on the MCO1 pin PA8. I use an external 25 Mhz crystal. The PLL delivers 180 Mhz to the system clock. I've used STCubeMX to configure the clocks to get 180 MHz / 3 on MCO1.Unfortunatly I'm not getting any activity on the MCO1 pin at all.Some things I've tried:- Checking the registers in the debugger, looks correct.- Setting MCO1 register to 0x02 for using HSE. This works fine, I'm getting pulses on MCO1- Setting PLL down to 75 Mhz. No activity on MCO1.Is this some limitation or erratta that I somehow missed in the documentation?

Posted on January 18, 2017 at 03:55I am using stm32cubeMx to generate initialization C code for programming STM32L476RGTx MCU using Keil IDE. Recently, I need to interface an AD5262 digital potentiometer to control the gain of an amplifier automatically. The AD5262 requires 9 bit spi data to be configured perfectly (1 bit for resistor selection, 8 bit for wiper position selection). I have tried HAL_SPI_Transmit_IT(&hspi,&data,1) // data is 8 bit. //to transmit twice (so I did some bit manipulation so it becomes A0 D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0, please check AD5262.jpg). I considered last 7 zeros' to be ignored by AD5262. Seems like my process is not working. There one other way I can think of which is 1st bit (A0) to be transferred manually programming the spi by using the gpio pins (CS, SCLK and SDA) and transmitting the rest 8 bit using the function I mentioned. But I will do it if I can not find any other convenient way to transmit 9 bit directly using HAL. Can you

Posted on July 11, 2017 at 18:56I am using an arduino using SPI to communicate with a CR95HF.I can ready the device ID and can detect a Mifare classic card in the RF field.The problem I have is that I'm unable to select the card and have it respond with the SAK and CRC. All I get is an 87 response from the CR95HF.Below is the data exchange.To CR95HF>>>From CR95HF <<<>>> 00 04 02 26 07 (Detect card)<<< 80 05 04 00 28 00 00   (Card response - no collision bit set)>>> 00 04 03 93 20 08   (start Collision loop to get UID for select)<<< 80 08 5B 48 66 3F 4A 28 00 00 (card responds with full UID)>>> 00 04 07 93 70 5B 48 66 3F 08 46 7B (SEL)<<< 87 00 (timeout?)What am I missing here?

Hello,Currently, I am working on STMH43ZITx Nucleo board. In order to generate code for Ethernet as well as LWIP, I am using STMCubeMX. After updating STMCubeMX to the newest version i.e 4.26.1, I cant able to select LWIP option at all even after selecting ETH option to RMII/MII.The same works if I select other boards for example STM32F7 series. Is that bug in the newest release of STM32CubeMX or I am doing something wrong?Best regards,Sid

hello i try to read registers RCC_CSR with FlagStatusRCC_GetFlagStatus (uint8_t RCC_FLAG)but my project generated by cubemx doesnt recognize this function ,is there an option i didnt open on cube mx , or should i download a folder , because i couşdn find STM32F10x Standard Peripherals Library 3.5.0 on my project thanks

As I said in the title, I tried to test the PingPong example avaliable in the I-CUBE-LRWAN software expansion but it does not work on B-L072Z-LRWAN1 board.After importing the project to SW4STM32 and running it (without doing any modifications), this is what I get in console:Open On-Chip Debugger 0.10.0-dev-00010-g96aab7b (2018-07-13-06:51)Licensed under GNU GPL v2For bug reports, read http://openocd.org/doc/doxygen/bugs.htmlsrst_only separate srst_nogate srst_open_drain connect_assert_srstInfo : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWDadapter speed: 240 kHzadapter_nsrst_delay: 100Info : clock speed 1800 kHzInfo : STLINK v2 JTAG v31 API v2 VID 0x0483 PID 0x374BInfo : Target voltage: 3.263434Info : STM32L072CZYx.cpu: hardware has 4 breakpoints, 2 watchpointsadapter speed: 240 kHztarget halted due to debug-request, current mode: Thread xPSR: 0xf1000000 pc: 0x08002da8 msp: 0x20005000STM32L0: Enabling HSI16adapter sp

Posted on March 01, 2018 at 10:22Hello !I found something which is probably a bug on the L4+ series stm32l4wwxx.h files (in example stm32l4r5xx.h)There is the following code : (lines 14359 to 14364 in stm32l4r5xx.h )&sharpdefine SDMMC_STA_DPSMACT_Pos (12U)&sharpdefine SDMMC_STA_DPSMACT_Msk (0x1U << SDMMC_STA_CPSMACT_Pos) /*!< 0x00001000 */&sharpdefine SDMMC_STA_DPSMACT SDMMC_STA_CPSMACT_Msk /*!<Data path state machine active */&sharpdefine SDMMC_STA_CPSMACT_Pos (13U)&sharpdefine SDMMC_STA_CPSMACT_Msk (0x1U << SDMMC_STA_DPSMACT_Pos) /*!< 0x00002000 */&sharpdefine SDMMC_STA_CPSMACT SDMMC_STA_DPSMACT_Msk /*!<Command path state machine active */You may see that DPSMACT and CPSMACT are inverted between macros names and values.This is present for all STM32L4+ headers available in en.stm32l4.zip (CubeL4 software, available on ST.com on March 1st 2018)By the way, is there a more 'official' way to report such error or is posting on the forum is t

Posted on April 05, 2018 at 10:56We are trying to increase the clock speed of our STM32 on our custom board but we encountered some difficulties.At the moment, we set a clock of 56 MHz, using HSI and an PLL of 112 (with CubeMx). It works fine.But when we set a clock of 96 MHz by setting the PLL to 192, we get Hard Fault, Usage Fault or Bus Fault when debugging.We tried increasing the flash latency, but it does not work better. The power supply seems good (around 3,2 V).We were missing the Vcap on the board, but we fix that. Not better.What can we look at to debug this problem ?#cpu-clock-frequency

Hi everyone, I'm developing IAP with stm32f446vct6. In the main function of your example, the application address is checked for 0x20000000 after masking with 0x2FFE0000. However, the f446 reads always the 0x20020000 for the application address and not pass this statement. Why does it read 0x20020000 data? Is it specific value for every MCU? (I tried this data in f303 and it read the 0x20000000 and passed.)

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Posted on June 28, 2018 at 18:34STM32H743To improve the accuracy of the temperature sensor measurement, each device is individually factory-calibrated by ST. The temperature sensor factory calibration data are stored by ST in the System memory area, which is accessible in Read-only modePlease could someone point me at where I can find information on how to read the calibration parameters. Can't see anything in the device manual, the H7 reference manual or the HAL manual but probably missed it.

Hallo. I'm using SPI and DMA on a STM32L433, to receive data from an external board, and I would like that an interrupt was fired at reception of the 4th byte.I've set the SPI3 (that is in slave receive only mode because I'm using MISO pin for other things) to trigger the DMA2 channel 1 at reception, as shown in the attached images.The problem is that when I send the 4 bytes pachet (I've seen the 4 bytes by a scope connected to SCKL and MOSI pin), the interrupt is not fired.The strange thing is that even if the dma request bit in SPI peripheral is set (RXDMAEN bit in CR2 Register), the last byte received is waiting in the spi rx fifo (FRLVL bits in SR register) and is not moved by dma, infact the dma transfers counter (CNDTR1 register) says that 1 more byte is needed to complete the transfer and finally, firing the interrupt!The question is why the last byte received by SPI stays in the SPI receive buffer and is not transferred by DMA to memory destination?Ideas?DmaSettingsPre and SpiS

Starting from rm0090 up to rm433, the DMA_SxFCR register offset is given as"Address offset: 0x24 + 0x24 × stream number"The multiplicator is obvious wrong and should be 0x18.Regards

RM0433 Rev 5 in chapter 7.1. talks about "Hold boot function". The reference manual dose not come up with some explanation later.Please explain.

RM0433 talks about a BDMA_CM1ARx register and lists it in the register maps. The description in rm0433 for BDMA_CM1ARx seems to be tha same as for BDMA_CM0ARx. The device headers only talks about the CMAR register.Please clarify.