hello allI established a virtual com port using a 4G modem, connected it with my F413ZH USART1.I used a DMA channel for RX. set HAL_UART_Receive_DMA(&huart1, (uint8_t *)&RxS0, 1);I could get datas from it at first. DMA2_Stream0_IRQHandler() will be c...

Posted on November 10, 2017 at 10:43Hi all?I am using F413 nucleo to acquir water level datas from aquatrak model 4110.The sensor is 1 Hz and data is fixed length.I use timer 6(1Hz) to process the received datas.But I almost lost one record every 90...

Posted on October 18, 2017 at 09:16Hi all：I had cut the F103 part from my F413ZH-Nucleo.The attatchment are photos of it.I could use it to flash program into any F413ZH. I have 3 pieces.But I couldn't do the same thing at L476RG-Nucleo.I followed th...

Posted on June 06, 2017 at 05:13Hi all:followed http://www.waveshare.net/study/article-656-1.html I could access my SD card through SDIO interface.uint32_t Buffer_Tx[512/4], Buffer_Rx[512/4];If I use var[128], it seems that I will get HAL_SD_ERROR_D...

Posted on April 05, 2017 at 11:38Hi allAccording to en.DM00244518.pdf page 22We could use +3.3V as power supply only in situation ''ST-LINK not powered''.My question is when I use E5V, if I remove SB3 and SB111, the st-link part will not be powered....