About SMour.2

SMour.2 · 2023-08-28

Hello All,I'm really stuck with USB CDC Communication speed using STM32F405 for past 20 days.I'm trying to send ADC Data to PC . My ADC sampling rate is 32khz. My ADC is 8 channel , but I'm only sending 2 channel data to PC.The ADC Data ready pin is ...

SMour.2 · 2023-08-23

Hello All,I'm using STM32F405 with a 24 BIT ADC (ADS1298) . The ADC Sampling rate is 16Khz per channel and I want to send two channel data of the ADC i.e. 16000 samples x 2 channel x 3 bytes per sample =96000 bytes to my PC application. I have used ...

SMour.2 · 2023-06-17

Hello Team,I debug STM32F405 on my custom PCB using nucleo board and STLink utility software.Now, I have added a digital isolator on my PCB , and the STM32F405 MCU is powered by the isolated 3.3v supply & ground of the isolator.Now, the Nucleo boar...

SMour.2 · 2022-12-09

Hi ,I have a product in which I am using STM32F746 for LTDC. Now due to Chip Shortage, I had to use STM32F429 for the same product. However, even Though the Pins are same for both MCU's , The Alternate functions differ which creates lot of difficulti...

SMour.2 · 2022-01-21

Hi,I would like to copy the string stored in TextArea wildcard buffer in to a char array for further use in FATFS. I'm displaying the SD card Files on the TFT Display using List Layout example. I'm able to display the files , but then I need to Open...

SMour.2 · 2023-09-11

Just an update in my thread for those who might ever get stuck in a situation like mine.FREE RTOS task ticks at 1ms interval. If the sampling rate of an external ADC is more than 1khz (in my case it was 32khz) , then FREE RTOS task is of no use. Its ...

SMour.2 · 2023-09-01

This USB CDC Speed issue is really a pain now. Is it not possible to achieve a speed of 200k Bytes per second in USB Communication??I have tried buffers of 4096,8192 and finally I tried a buffer of 19200 Bytes . At my PC application The first chunk o...

SMour.2 · 2023-09-01

Just remember that you should call the Transmit only from an ISR of the same priority as USB interrupt.I'm using CDC_Transmit_FS in a Free RTOS TASK. I was reading that the ST USB CDC Library used in cubemx will send 64 bytes per 1 ms i.e 64Kbytes in...

SMour.2 · 2023-08-31

Also,/* USER CODE BEGIN EXPORTED_DEFINES *//* Define size for the receive and transmit buffer over CDC *//* It's up to user to redefine and/or remove those define */#define APP_RX_DATA_SIZE 2048#define APP_TX_DATA_SIZE 1920these are changes I have do...

SMour.2 · 2023-08-31

I understand that more amount of data I send at one time the better speed efficiency I will get. I now collect 19200 bytes of data from the ADC in an array i.e 100ms of data and then set a flag so that my FREE RTOS task sends the data as soon it det...

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Help resolve issue for sending data to PC via USB CDC FS Communication

STM32F405 USB CDC TRANSFER 100K BYTES PER SECOND TO PC APPLICATION

Debugging STM32f405 using Nucleo board .

Alternate Functions of STM32F429 & STM32F746 are different even though the Pin Configuration is the same?

HOW TO COPY TEXTAREA WILDCARD BUFFER STRING TO A CHAR ARRAY IN TOUCHGFX?

Re: Help resolve issue for sending data to PC via USB CDC FS Communication

Re: Help resolve issue for sending data to PC via USB CDC FS Communication

Re: Help resolve issue for sending data to PC via USB CDC FS Communication

Re: Help resolve issue for sending data to PC via USB CDC FS Communication

Re: Help resolve issue for sending data to PC via USB CDC FS Communication