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Forum Posts

Understanding FSMC arbitration

Posted on September 22, 2014 at 12:38I want to direct drive a rgb tft display via FSMC/DMA and an external async sram as framebuffer. The cpu is a STM32F103ZC. What happens when CPU writes between transfers to RAM? The transfers would be then: DMA R...

sk-st by Associate III
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  • 1 replies
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Ultrasonic sensor

Posted on September 19, 2014 at 15:02Hello everyone, how can i configure an ultrasonic sensor with timers on stm32f4 ? #interface-anything-to-anything #ultrasonic-sensor

How to use nand and SDRAM using FMC

Posted on September 22, 2014 at 11:45I want to interface LCD 800 x 600 x RGB 24 bit Display. for that i used SDRAM, NAND Flash, and other needed like touch Controller, SDCard, USB 2.0 etc. While designing in Cube i found that NAND and SDRAM shares t...

umesh by Associate
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Newbie looking for help with GPIO

Posted on September 01, 2014 at 23:00 I have an STM32F4 Discovery board, which I am relatively new to. I'm trying to figure out how to work with GPIO's, and I haven't been able to find a good tutorial yet, so I'm trying to work it out by looking...

sandtime by Associate II
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Free real-time operating system on STM32F100RB-Discovery

Posted on September 19, 2014 at 10:26Hi people, I have STM32F100RB-Discovery board. I need a free real-time operating system which I could deploy on that board. I know for FreeRTOS, but following their manual I haven't succeeded to deploy it yet. A...

ing2 by Associate
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  • 3 replies
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UART4 IRQ Handler not firing

Posted on September 20, 2014 at 11:50With my STM32F4 discovery board I cannot get the UART4_IRQHandler to be triggered on incoming serial data. However the USART2_IRQHandler functions as expected and when the data is ready from the UART4 RX data reg...

andrew23 by Associate II
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error in programming

Posted on September 20, 2014 at 11:16hi every onewhen im trying to programm my stm32f103ret6 via jlink in keil v5.11, it shows this error:can any body help me please?WBR #stm32f103 #jlnik

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mhdizgah by Associate II
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STM32F429 UART7 Rx question

Posted on September 19, 2014 at 13:19Hello friends.I'm trying to communicate with DS18B20 via 1-wire interface.Here is the example of reset function (all pins and clk are set erlier). The problem is that the variable data does not receive UART7 DR v...

baev_al by Associate II
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stm32f429 I2C clock speed

Posted on September 19, 2014 at 22:58 hello guys, I have a problem with the clock speed of my I2C bus, I want to have 100 hz of frequency but I am not able to reach it. That is my code * @file Touch_Panel/main.c * @author MCD Application Team...

Data structure for data write and Data read

Posted on September 19, 2014 at 22:27 I would like create a variable that contains port and pin information, so I can use the high level name to perform all reads and writes. I am looking for help with the syntax to create a: Structure for...

ebommer by Associate II
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