About Javad

Javad · 2022-09-07

Hi,I try to make stm32l496 as a video camera device. I use Ov5640 sensor. The aim is that taking photos and send them to the host device directly (like a webcam). The challenge is that when I try to use high resolutions, due to I don't use any memory...

Javad · 2021-11-12

Hi guys,I use STM32F429+stemwin GUI. I have many image to show on display. Due to space limitation, I try to declare image to allocate memory space in SDRAM as following line:unsigned char _acMY_LOGO[]__attribute__((at(SDRAM_BANK_ADDR + IMAGE1_ADDR))...

Javad · 2020-04-13

I have stm32f429discovery and i used stm32cubeMx to set up usb host with fast32. when I connect flash it works OK. but when I configure freeRTOS it didn't work. when i debug it, I found that the "id" in "USBH_UserProcess" function is "HOST_USER_CONNE...

Javad · 2020-04-09

I have stm32f429discovery and i used stm32cubeMx to set up usb host with fast32. when I connect flash it works OK. but when I configure freeRTOS it didn't work. when i debug it, I found it go to "HardFault_Handle" loop. i increase heap and stack size...

Javad · 2016-06-18

Posted on June 19, 2016 at 08:19hiI wanna use external ADS7816 ADC with serial (SPI) interface. I wrote the following code but it doesn't work! spi sclk pin has clock and I use PA0 to manage ADS1768 comunication as slave (SS). the problem is that I ...

Javad · 2020-04-11

I saw I made a mistake! I forgot to call "MX_USB_HOST_Process()" function in loop. now my cod don't hang but still not write on flash!i debugged it and I notice the status is "HOST_USER_CONNECTION". what it mean?this is my task:void StartDefaultTask(...

Javad · 2020-04-10

thank you Jack for your replyI check status, it return "taskSCHEDULER_RUNNING"i increased heap size while 10K and stack size 20K and allocate task with 5k but still my programm go to "HardFault_Handle" loopin this program I just have 2 task (one of t...

Javad · 2020-04-10

thank you Jack for your replyI check status, it return "taskSCHEDULER_RUNNING"i increased heap size while 10K and stack size 20K and allocate task with 5k but still my programm go to "HardFault_Handle" loopin this program I just have 2 task (one of t...

Javad · 2016-06-19

Posted on June 20, 2016 at 06:49you'll just get bogus data returned in your buffer if nothing is supplying valid datahow can i fix this bug? can you please correct it?ADS7816 is a signle chanel adc. it has just 3 pin for communication. it just send ...

Javad · 2016-06-19

Posted on June 19, 2016 at 10:12I didn't understand what you mean! I disconnect the clock pin too, but interrupt is running! is my code right? I think I make some mistake in my code!

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How to declare image to allocate memory space in SDRAM?

usb host fat32 does not work with freeRTOS

usb host fat32 does not work with freeRTOS

SPI RX DMA interrupt

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Re: usb host fat32 does not work with freeRTOS

Re: usb host fat32 does not work with freeRTOS

Re: SPI RX DMA interrupt

Re: SPI RX DMA interrupt