Posted on June 19, 2014 at 15:29Hello,I'm trying to use SPI master with DMA in full duplex to communicate with accelerometer. I don't want to use DMA interrupts (or should I?).I've managed to activate the SPI with polling mode and got the correct re...

Posted on May 29, 2014 at 13:23Hello,I'm trying to use stm32l152 as SPI slave, and communicate with master via PC with USB-SPI device.I've configure SPI2 as slave. Slave clock set to 4MHz.I'm using NSS hardware, and getting ETXI once CS gets low in ...

Posted on March 30, 2014 at 08:39Hello,I want to use WFI, but I'm wondering how it works, what triggers the WFI to exit low power.I've defined systick for 1uSec (I'll use it later for some delays).I've defined timer2 for 100mSec.I need to do some ca...

Posted on March 20, 2014 at 15:26Hello,I'm trying to work with LIS3DSH device with different ranges.I put the device on a table facing up, so Z axis should give me 1000mg reading, for all ranges.I configure the device to range 2g by writing to reg_5...

Posted on March 19, 2014 at 08:26Hello,I'm using STM32L152 discovery board.I'm trying to define systick for 100mSec, and tim2 to 1 sec.After measuring the pin togeling with scope, this is what I came up with:I know SystemCoreClock is 32MHz.For systi...