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Bootloader on RS232 - page write time and baud rate
Xmodem sounds good. Does this mean that I send a straight binary file to the MCU? If so, is there an easy way to generate this using GCC on the command line? Does the xmodem...
Monday, 18 August 2008 - 18:25
Bootloader on RS232 - page write time and baud rate
Many thanks for your reply, curtvm! So if I write one bit, it takes the same time as writing a page? I suppose I will be writing page by page then. Using the line delay to wait...
Monday, 18 August 2008 - 15:55
Bootloader section - Kontrollerlab, GCC
So, I was nearly there with my spreadsheet, which basically divided the hex data into the various sections, added the address offset and stuck it all back together. I was just...
Friday, 8 August 2008 - 12:41
Bootloader section - Kontrollerlab, GCC
Stu and Curt, thanks heaps for your answers. When I try setting the "Specify start of text section" to anything (even 0x0!) I get a compile error: /usr/libc/gcc/avr/4.2.2...
Friday, 8 August 2008 - 09:07
ADC differential input requirements
Hi Bob, the reason I am using solar cells in this case is because of the integrator effect their larger surface area has. This makes them much less sensitive to reflections and...
Monday, 28 April 2008 - 15:39
ADC differential input requirements
Hi Joerg, I'm using actual solar cells, for which I do have to look into the electrical characteristics a bit more. I'm pretty sure the o/c voltage does increase with the strength...
Monday, 28 April 2008 - 12:45
ADC: WTF?
Thanks Lee, certainly some important information regarding the settling time required when switching between internal voltage references. Certainly something that could be...
Monday, 28 April 2008 - 09:20
ADC: WTF?
Okay, just in case anyone's interested, I tested the code at the top using a different board and setup and different input sources. 1) was due to the signal source having...
Friday, 25 April 2008 - 18:01
ADC: WTF?
It's something else then. Still haven't managed to solve 1) or 2). I know it's never the chip, but I tried a new processor anyway. Will try the code on my STK 501 to make sure...
Thursday, 24 April 2008 - 17:23
ADC: WTF?
Cliff, I am assuming the following means that the four clock cycle criteria is met (following your suggestion 3))... 292: ADMUX =TRACK_ERR_IN; //Set ADC input port to...
Thursday, 24 April 2008 - 15:07
ADC: WTF?
Quote:But still, you're making the reading more difficult than it is with all that shifting. You're right. I will be using ADCW from now on ;) Clawson, I tried MCUCSR=0x80...
Thursday, 24 April 2008 - 14:26
ADC: WTF?
Quote:Surely the 14 (treated as 'int') in there will cause the ADCH value that's read to be extended to 16 bits first so the <<14 is going to leave you with the bottom two...
Thursday, 24 April 2008 - 13:17

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