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JTAG ICE clone buffer IC question
js wrote:Quote:I do not use TTL2RS232, I use this USB2TTL instead: So you can still have the USB chip being supplied by the 5V off the computer but the TTL side from the target at...
Thursday, 22 December 2011 - 08:13
JTAG ICE clone buffer IC question
js wrote:My JTAG Mk1 get it's power from the target, so if it's 3.3V then it runs at 3.3V, if it's 5V it runs from 5V. No problems. Edit I just looked back at the diagram and it...
Wednesday, 21 December 2011 - 09:16
JTAG ICE clone buffer IC question
Ok, if my JTAG ICE is powered from 5V and target from 3.3V it seems that logic levels from JTAG will exceed Vcc+0.5V for target?
Wednesday, 21 December 2011 - 08:36
Atmega8A power down current with pull-ups enabled
Thank you, now I got it.
Monday, 12 December 2011 - 09:04
Atmega8A power down current with pull-ups enabled
theusch wrote:Quote: ATmega8A (I know that ATmega88 is way better in power consumption, but it is not easily accessible locally). That sounds really strange, as Mega8A is a new...
Sunday, 11 December 2011 - 19:13
Array of arrays in flash using PROGMEM
clawson wrote:Quote: to cast 'current' as array and not pointer? Same thing: x = pgm_read_byte(¤t[6]); // read #7 element of second array would work just as well....
Sunday, 8 May 2011 - 07:50
Array of arrays in flash using PROGMEM
Thanks for the detailed response! Finally I've created another array of sizes in PROGMEM I also replaced pointer math to more readable: x = pgm_read_byte(&array1[3]); // read...
Saturday, 7 May 2011 - 11:18
Array of arrays in flash using PROGMEM
skeeve wrote: const uint8_t* my_arrays[] PROGMEM = { array1, array2, array2+sizeof(array2)/sizeof(array2[0]) }; // pointer differences will give you sizes I'm not...
Saturday, 7 May 2011 - 07:02
Read ADC value atomically
Thanks a lot!
Friday, 21 January 2011 - 21:22
Read ADC value atomically
Jepael, this is a part of bigger application, I just isolated ADC code for this question. And I'd like to do it in more general\right way from the beginning... Thanks!
Friday, 21 January 2011 - 20:45
Read ADC value atomically
Quote: you can verify what the compiler did by opening the *.LSS file and find that code section and see what assembly gets generated. Thanks, I've already checked this after you...
Friday, 21 January 2011 - 19:44
Read ADC value atomically
Thanks for the responses, it seems my question was not clear. I was asking about accessing value not inside ISR, but in main loop, here is a code. volatile static uint16_t adc...
Friday, 21 January 2011 - 15:47

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