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Posted on August 29, 2013 at 04:24 I was trying to write out the usart using dma. I thought everything was working till I actually looked at the data. The data seemed to always be wrong so I extracted all the relevant code to test it separately ...
Posted on September 02, 2013 at 16:21Hi, Sorry this might be a stupid question as I have not done enough research. But if some one could answer will save me lot of time. Is there a way I can increase the program memory of STM32f407 using external f...
Posted on September 02, 2013 at 10:37Hi, I'm using Usart1 on STM32F100. I need to wait until the last byte is completed sended to make the DE signal go low on a Modbus Slave application. This seems to be a simple task for a each programmer, but I ha...
Posted on September 01, 2013 at 18:26Hello, I am trying to get the I2C bus to run with the MMA8452 accelerometer, but it just wont. I can generate a start condition but nothing else. I'm watching the bus lines with a scope/logic analyzer and I can s...
Posted on August 31, 2013 at 19:50hello i tried ST's adc exemple and i got weird values of my variable while debugging , for exemple i got 30 for 2.0 v and -1000 for 2.5 v , so anyone have a working code with no weird things? and thnx :)
Posted on August 31, 2013 at 21:45 hello dear forum, I am trying to setup window watchdog on F103 I want wwdg to be reset in a window of 8 - 12 milisecond I set wwdg prescaler to 2 so wwdg timer is counting every 0.227 microsecon...
Posted on August 28, 2013 at 16:10Hi,I'm trying to generate 3 signal using TIM3&TIM4.the first signal run at 8MHz, DutyCycle 50%, the second signal should run every odd cycles of the first signal and the third should run every even cycles of the fir...
Posted on August 30, 2013 at 14:27 Hi, I have a bit of an issue - I'm trying to put an STM32 into STOP mode, but to have it wake up when a character is sent over the USART (and to receive that character). My code is just: // .....
Posted on September 01, 2013 at 09:24I use today HCLK of 120Mhz taken from the systemclk of 120Mhz (prescale by 1), and active USB OTG FS no problem. To save power I want to go as much as possible low with the freq, when not during fast operations, ...
Posted on May 26, 2012 at 10:14 Hi guys, I'm working on a STM32F4 Discovery board and trying send over I2C. Therefore I'm using the functions from the Standard Peripheral Library. Unfortunately the device stucks after sending the address ...
