About markmark9125

markmark9125 · 2013-02-15

Posted on February 15, 2013 at 20:48I use my STM32F0 to communicate with an SPI slave device, which is powered by the 3V bus on the STM32F0.My problem is that when I reset the STM32F0, the bus power is not interrupted, which leaves the SPI device in...

markmark9125 · 2013-02-09

Posted on February 09, 2013 at 15:35 I'm really stumped on this one, and hoping someone can help. I'm using USART_ReceiveData() to receive data off of a USB line at 9600 baud, on an STM32F0Discovery. It works without any trouble until I try to s...

markmark9125 · 2013-02-15

Posted on February 16, 2013 at 00:08Thanks for the help! I ended up powering the device off of one of the GPIO pins, which I know is generally taboo, but it only draws a few dozen uA, so it hasn't been a problem yet.

markmark9125 · 2013-02-11

Posted on February 11, 2013 at 20:23Thanks a lot, I think your advice got me back on track. I found that the way Arduinos handle this is to provide a buffering abstraction, exactly as you describe, in the HardwareSerial class.For anyone else who com...

markmark9125 · 2013-02-11

Posted on February 11, 2013 at 17:41Obviously I'd prefer to use interrupts, but unfortunately I'm working with a 3rd-party library that requires me to implement read() and write() functions. I suppose I could hack interrupts into this, but it doesn'...

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Reset bus power

USART writes seem to block or slow down reads

Re: Reset bus power

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Re: USART writes seem to block or slow down reads