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Posted on July 09, 2014 at 18:25Dear all,I'm new in embedded systems, and I have a few simple questions regarding ADC on STM32F4xx.1. In the processor block diagram, I can see that ADCs (there are three of them) are connected to APB2 that has operat...
Posted on July 09, 2014 at 18:54Hi,I'm working with STM32F401-DISCO on IAR.I'm trying to protect 2 sections of 16KB from the flash, I want to use the 2 sections for internal data.I tried to protect sections 0 & 1 , so I start the ROM from section 2....
Posted on July 10, 2014 at 11:19Hi I configured the USART1 with the DMA Controller to receive 16 Bytes. In case if I receive just 1 Byte (Error on the line for example or when starting the sytem) then I like to delete the whole content of the DMA Co...
Posted on July 10, 2014 at 11:53Sorry for asking a bit of non relevant question here. I feel some experts here can help me out.I was implementing some code from OpenPilot firmware in IAR EWARM, got into a problem.I have described the problem at http...
Posted on July 10, 2014 at 07:10 Hi, I'm trying to establish SPI communication between PIC18F2580 as master and STM32F4 Discovery as slave. Using logic analyzer,I found that PIC and STM32F4 actually sending bytes (PIC's MOSI and STM3...
Posted on October 02, 2013 at 10:05Maybe it'sread bydevelopers from ST. I had two ideas for improvements - Somehow graphically distinguish outputs that are 5 volt tolerant - Add user defined (label) tag in which the user can observe what signal is ...
Posted on July 08, 2014 at 19:01Will not allow configuring both USB and CAN at the same time (forces both to PA11/PA12). Trying to configure USB on PA11/PA12 and CAN on PB8/PB9. CAN shows up in override list for PB8/PB9 but pins turn orange and stat...
Posted on July 08, 2014 at 08:25Hello;I am working on stm discovery. My aim is get output from speaker. I did it in main function. but i want to use SPI3 interrupt for send data. My codes in below. The code does not go to interrupt. I put breakpoint...
Posted on July 09, 2014 at 07:51For now, I need to do a simple benchmark of memcpy. Here, it's pseudocode.#define SYSTICKS_REG 0xE000E018uint32_t *get_systicks (void){ return (uint32_t *) SYSTICKS_REG;}measure_start = *get_systicks ();for (int j ...
Posted on June 13, 2014 at 20:42Hello,I am confused by a DMA2 ISR and TIMER ISR conflict which is occurring in my project.The project is based upon the FATFS SDIO example project provided with the STM32F4Discovery PCB.I have had no trouble whatsoeve...
