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Nucleo-F103RB and L3G4200D.

Posted on August 29, 2014 at 12:21 Hello I have a Nucleo-F103RB board and a EVK of L3G4200D. I am try connect this via I2C I have this code for config I2C void Inicializacion_uC(void) { RCC_Configuration_IO(); Inicial...

lemac by • Associate III
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Is STM32Cube speed optimized?

Posted on August 30, 2014 at 06:30I saw the code of stm32cube, It seems the code is not speed optimized,because nowadays micros have large amount of flash memory,the code size optimization is not important but speed optimization is very important, b...

Do I need a DMB instruction before starting DMA?

Posted on September 02, 2014 at 12:56I've been looking through the ARM documentation and am confused by when I need a DMB instruction. The CMSIS libraries for DMA(strm, enable) don't seem to include a DMB instruction, however the documentation indic...

Implement a usart1 receive interrupt without pressing a key

Posted on September 01, 2014 at 09:28Hello Forum,I have implemented a menu system on my app using the consoleMain Menu Select A ....1   (e.g. prints Debug1) Main Menu Select B.....2 2      Sub Menu B Select A ......1      Sub Menu B Select B.......2...

STM32F4-discovery LCD linking question

Posted on August 31, 2014 at 08:15Dear friends.Please help with the following error:Error[Li005]: no definition for ''LTDC_LayerInit''Here is the part of the program:/* Initialize the LCD */LCD_Init(); /* LCD Configuration */LCD_LayerInit();Both fun...

baev_al by • Associate III
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STM32F2, FSMC, SSD1963 Performance

Posted on June 12, 2012 at 02:43I've recently created a prototype with a STM32F2 and a Solomon Systech SSD1963 interfaced via the FSMC (Resolution: 800 x 480).  I've succeeded in getting things displayed on the screen, but I'm a little disappointed ...

mfranklin by • Associate III
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STM32F2 USB Host Virtual COM with DMA

Posted on September 01, 2014 at 12:15I have a module which I need to communicate with virtual com by USB with a STM32F2.Which means that I need to STM32F2 to be USB host and then connect to the virtual com over USB and I also need the transfer to be...

HAL DMA ADC Interrupt stuck in IRQ Handler

Posted on July 18, 2014 at 02:12I'm having an issue where, if I enable the DMA IRQ, my application gets stuck on one of the error check statements within the HAL_DMA_IRQHandler. I'm trying to run conversions on four ADC1 channels, each going into me...

rajpaged by • Associate II
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