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Posted on April 23, 2015 at 14:45Hi, I am using STM32f429 USBH sample codes for one of my project. I have configured USB in FS mode.I have connected a USB keyboard and it works fine in systemcore clock 168 MHZ. When i switched to 180MHZ it stop...
Posted on April 23, 2015 at 15:01I am attempting to implement slave device on an STM32f0 that has both transmission and receive. I have looked at the two board solution. I am able to write to the transmission buffer. However, I can not get the ST...
Posted on March 11, 2015 at 20:34Hi,I'm new to LwIP and I'm trying to run it on STM32F4 Discovery with FreeRTOS. I'm using STM32CubeMX for generating default code and System Workbench (AC6) as IDE. I use DP83848 PHY in RMII mode. All the software wo...
Posted on April 23, 2015 at 13:07hi all , i want to check the interrupt performance of STM32f407ZG controller.but i don't know how can i calculate the interrupt latency.now i a activete three interrupts ,such as i)UART3 RX interruptii)UART3 TX i...
Posted on April 13, 2015 at 19:57Noticed an ''interesting'' issue that I was unable to trackdown.If I compile the example LwIP_UDPTCP_Echo_Server_Netconn_RTOS using IAR 7.40 everything works fine YET when I compile the same code using IAR 6.50 I get...
Posted on April 23, 2015 at 07:01fix: USB HID Mouse fifo contain corrupted data when fifo is full. fix: same buffer mouse_report_data is used in receiving usb data before writing to fifo, and decoding after read from fifo. fix: should return 0 when ...
Posted on April 23, 2015 at 03:18Test data: HSE_VALUE = 24000000, pllm=196, plln=14, pllp=2, result: sysclockfreq=167,999,930，but the correct one is 168,000,000 reason: in expression pllvco = ((HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN)...
Posted on April 22, 2015 at 04:58Hello everyone, I checked the data sheet but couldn't find an answer to the following question: What should happen if master initiates transmission but slave is detached or powered down? In my tests once master...
Posted on April 23, 2015 at 03:20The function (as defined in usbd_cdc.c) uint8_t USBD_CDC_TransmitPacket(USBD_HandleTypeDef *pdev)in fact returns values of type USBD_StatusTypeDef, not uint8_t.This causes type collisions, and IAR warnings of the fo...
Posted on April 22, 2015 at 23:49 Hi everyone, I am getting problem with my SPI first bit received from slave. I have 2 boards as master and slave. The SPI is configured as 8 bit full duplex mode, soft NSS, receive interrupt at slave. ...
