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Discussion Title Created date
problem with FAT32 alloc 16KB sector segment in a new file
hi, I just tried with the FAT32 file system on a 16GB microSDHC card, and my code tries to alloc 16384B in a newly opened file, but fat_write_file() function always gets fs_g_seg....
Saturday, 28 November 2009 - 13:59
strange SSC interface issue on UC3B!!! silicon bug?
After almost two weeks (yes, two dam weeks!!!) of debuging, I finally found out the reason why the SSC interface connected to my 16bit ADC doesn't work correctly at higher speed....
Wednesday, 29 July 2009 - 15:55
timing capture glitch with TC0 and TC2 forming 32bit timer
Hi, I'm trying to use TC0 and TC2 and PWM2 to form a perfect 32bit hardware timer for my digital input signal's timing measurement. My UC3B is running at FCPU and FPBA equal to...
Monday, 6 April 2009 - 19:38
about RA and RB register loading in capture mode of TC
Hi, I'm so confused about this RA and RB loading in capture mode. If I set to load RA and RB on the rising edge of TIOA, then the every first rising edge will always load RA,...
Wednesday, 25 March 2009 - 11:49
about INTC and interrupt registeration on UC3B
hi, I just got confused about INTC function INTC_register_interrupt(), so my question is can there be only one interrupt routine been registered with one IRQ? I think any IRQ can...
Wednesday, 25 March 2009 - 11:46
very strange thing about UC3B internal pull ups for TWI
hi, I just found out on my UC3B design without any device connecting to TWI bus yet, that after enabling the internal pull-ups of SCL and SDA pins and then if I enable the...
Friday, 20 March 2009 - 10:45
about setting correct PWM output period
hi, I'm just a little bit confused now about the correct value to set for PWM output. The errata of UC3B said the PWM reset at 0x0001, not 0x0000, so this means if I want to have...
Saturday, 28 February 2009 - 11:21
a very strange problem with 32KHz Osc on UC3B
hi, I just found out that on my UC3B PCB with 16MHz crystal on OSC0 and 32KHz crystal on OSC32, if I set the CPU wroking frequency as 16MHz/256, as: // /* Divide PBA clock by...
Saturday, 28 February 2009 - 09:22
how to sync a TC clked by PWM with a TC clked by PBA?
hi, I want to build up a 32bit hardware timer, so I let TC2 by clocked by PWM2 with frequency of PBA/2/65536, and TC0 by clocked by PBA/2. But now I don't know if there is way to...
Wednesday, 25 February 2009 - 16:16
TIOB pin can't be used as timing capture???
now i really think this TC model on UC3B is bad, really bad.....
Wednesday, 25 February 2009 - 09:21
is it possible to have bus contention for FLASH on UC3B?
hi, I'm now looking at the HMARTIX section and want to know if it's possible to have bus contention for Slave0 internal flash on UC3B, so that the execution time of my program...
Friday, 6 February 2009 - 10:28
UC3B design JTAGmkII communication stability problem!
Hi, I just got my new UC3B0256 PCB design, and I'm testing it now. In my design, I also used TDI,TDO and TMS as GPIO pins and they are connected to a level translator IOs, and the...
Wednesday, 28 January 2009 - 18:08

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