| Discussion Title | Created date |
|---|---|
|
huge state machine This is not GCC, but a general programming question. What do you use for huge finite state machines? I've wrote this huge state machine with about 20 states (it will probably grow... |
Saturday, 11 December 2010 - 16:01 |
|
FT232 fails to enumerate with ferrite bead All images in this post are avaiable in my Picasa album with full size. I'm finishing up a PCB that uses a FT232, with power supplied by it's ous regulator. In the middle of... |
Wednesday, 7 July 2010 - 02:31 |
|
Magically repair AVR chips Just saw this on hackaday.com. It's a "ATmega fusebit doctor" that sets the fuses to a safe state using HVPP. It claims to do it to a broad range of AVRs. Should help all the... |
Tuesday, 18 May 2010 - 21:32 |
|
PCB layout review I've just mede the layout for my IV-18 VFD project. The result is attached, including the schematic. All components are on the top side. Any hints on how to improve it? Thank you, |
Sunday, 25 April 2010 - 17:34 |
|
GCC optmizing out code I'm doing a state machine to receive commands from the UASRT and this one case (code below) isn't working. Inspecting the lss output, it seems that GCC is optimizing out the... |
Thursday, 11 March 2010 - 22:39 |
|
GCC code efficiency Looks like GCC is generating code more efficiently than the code in the avr-libc library, at least in this case (isdigit from ). Nice! if (isdigit(uart_tmp)) 40c: 48 2f... |
Thursday, 11 March 2010 - 16:24 |
|
Switch statement Here is a fragment os a code i've written, all part of a big state machine. All cases below (except the default one), there are some calculations, conversions to ascii (sprintf)... |
Saturday, 6 March 2010 - 21:04 |
|
Symmetric (Complementary) square wave outputs Is there an easy way of generating symmetric outputs from a timer on a Mega168? I'm using timer0 at ctc mode to generate a symmetric 100 kHz output at OC0A and OC0B. I just can't... |
Saturday, 30 January 2010 - 21:05 |
|
How to read both return values from __udivmodhi4 Hi, In AVR341 application note there is an implementation of an utoa function, shown below. /************************************************************************* Function:... |
Monday, 17 August 2009 - 04:12 |
|
Philips bench multimeter I was browsing ebay looking for a Fluke 8050A bench multimeter when I stumbled with this Philps PM2525 bench multimeter. It has slightly better DC accuracy against the 8050A (0.03... |
Wednesday, 18 March 2009 - 03:12 |
|
Using assembler to access a union How can I access individual bytes of the union below in assembler? volatile union { uint32_t Counts; uint16_t ints[2]; uint8_t bytes[4]; } foo Can I just use lo8(foo), hi8(... |
Thursday, 12 March 2009 - 20:01 |
|
Passing pin to a function Is there a way to tell a function which pin I want to use so I can change it's state inside of the function? Basically, I want to mimic BASCOMs SOUND function. It is defined in... |
Wednesday, 11 March 2009 - 20:29 |