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Posted on March 26, 2014 at 21:56Hello,For some time I've been developing system at my company, one of the features is SD card, interfaced via SPI (SPI1 to be more precise). However there is a problem with reception of data by MCU. When I map SPI1 t...
Posted on March 26, 2014 at 22:55 I refactored my interrupt based circular buffer into a dma RX stream coming from the USART2. I frequently read how many bytes the dma stream has read and then reset it back to zero. For example. ...
Posted on March 26, 2014 at 15:08I have a jump table currently set-up like thisProcTable DCD Proc1 DCD Proc2 DCD Proc3EndTableAnother part of my program that is acting as a processes manager which needs to keep track of the number of the process so ...
Posted on March 26, 2014 at 10:07 I use DMA on USART2 rx.(STM32f107) I can buffer my incoming data with DMA on circular mode and have no problem. My array size is 1024 byte and I don't want to wait for 1024 incoming byte and get interrupt ...
Posted on March 25, 2014 at 14:31What driver lib you use for your projects? 1- standard firmware lib 2- stm32cube f4 3- you own lib please answer ,if possible write your reason.
Posted on March 21, 2014 at 12:40 Hello, I have posted this on the Keil site, just wondered if anyone on here had come across this? I recently formatted my computer and re-installed UVision4. I moved all my files to my Dropbox folder prior to the fo...
Posted on March 26, 2014 at 11:37Hi All, Does somebody know (or could quickly check) what is the maximum and minimum output voltage that you can get from operational amplifiers in STM32L162? The load could be something between 1k and 10k.
Posted on March 22, 2014 at 18:14MULT CMP r1, #1 BEQ Finish ITTT HS SUBHS r1, #1 MULHS r0, r2 BLHS MULTWhere I currently have ''BEQ Finish'' I wish to call an SVC Handler, how can I do this?I know I can call an SVC handler with SVC 0 , SVC 1 etc.. ...
Posted on March 04, 2014 at 09:40Hi, I need to generate some pulses on a pin with a timer.Pin is normally high, it have to stay low for a precise time, then high for at least another time.I tried with one-pulse mode, but it works conversely: it wait...
Posted on March 26, 2014 at 09:06Hi, Fundamental question here, so please pardon my ignorance. In my interrupt routine I need to modify the EXTI->PR register, however when I set it using the following, EXTI->PR = 0x00000400 After printing out the va...
