Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on November 03, 2014 at 14:25Hi, I am using STM32L151 and try to communicate over I2C with STM32L151 as master. When I send out an adress to a slave that is not there I don't get an ACK, SDA stays high. With my configuration this results in a...
Posted on November 03, 2014 at 13:01Hi! I am having problems loading my software (Contiki) on the eval board STEVAL-IKR002V4. When connecting the board to my Windows7-PC with the USB-cable, that came with the board, it shows up as a COM-Port in the ...
Posted on October 31, 2014 at 13:34Hi: I have never used JTAG but I understand it has a boundary scan feature that allows testing all the pins for shorts and opens. Also it is possible to JTAG test more than one part by 'daisy chaining' JTAG from ...
Posted on October 31, 2014 at 20:02As soon as the USB disk is connected, I get an assertion fail, with this comment above this assertion:/* The following assertion will fail if a service routine (ISR) for an interrupt that has been assigned a priori...
Posted on November 02, 2014 at 20:14I am a newbie with ARM and ST parts, but I have used Microchip PIC parts for many years, though. Now I believe is the time to switch to a more powerful and expansive platform, so I am investigating ARM. I download...
Posted on October 31, 2014 at 14:43Hi, I'm a student starting to develop on my STM32F407 using uVision,I'm struggling on getting my board to link to my pc, I have installed the USB drivers but I still get the error ''no cortex M sw device'' from my ...
Posted on November 01, 2014 at 13:57Hi,This forum (seems to be based on MS-sharepoint) has a lot of bugs.For example, I can write new discussion only in Chrome and reply only on IE.When I write a new discussion or reply, I have always to select all ...
Posted on November 01, 2014 at 10:46I've noticed that the output of the clkout pin is very near the frequency I would expect when a external crystal is used as the pll source, but fluctuates a little as the CPU performs gpio operations. When I confi...
Posted on October 31, 2014 at 12:11I'm at wits end trying to figure out why exactly I can't transmit on UART4 or USART3.The RX works, and i can receive data, however the TX pin is not working at all. Below is my configure code for UART4.void init_us...
Posted on October 31, 2014 at 13:53 Hi all. I'm working on a project on an STM32L151CBT6 uC, and getting occasional, unexplained error bits WRPERR and SIZERRset in the flash controller. I set up the flash error interrupt to use the highes...
