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Tiny25 Soft I2C
I have started on using the Tiny25's USI in TWI mode by following Don Blake's code in this thread. Code compiles great but I had some confusion on addressing. It turns out the...
Saturday, 31 July 2010 - 19:12
Tiny25 Soft I2C
Hey, I got it working, the problem was that due to the boost converter in the project it was raising ground potential to 0.875V and I just assumed gnd = 0V. I added 47uF and 0.1uF...
Saturday, 31 July 2010 - 19:03
Tiny25 Soft I2C
I just hooked up my Bus Pirate in SPI mode and I can run the shift register perfectly so it is 100% a problem with the Tiny25V. Either it is having trouble driving the inputs or...
Friday, 30 July 2010 - 07:17
Custom Bitfield & Port Mask
Yea... That not quite what I was after. I am currently doing this in my routines but would like a better method that allows me to use pins from wherever I want to. I figured it...
Thursday, 15 July 2010 - 07:49
Converting asm function to C - Problems
I required a 32bit value to hold the value and after 32 left shifts and the - base maths the conversion of the value to ascii was done on the bits 33-40. 32bit Value in r22, r23,...
Thursday, 1 July 2010 - 07:12
Converting asm function to C - Problems
I am in fact trying to create my own itoa() (Why? Because I want to implement it in a particular way!) Is my C version the same flow as the asm version? I still have not got it...
Thursday, 1 July 2010 - 05:21
Input Capture Pin Difficulties
ISR(TIMER1_OVF_vect) { // Remove one from timeout // In the capture vector I have 5 as the timeout // limit, Timer 1 overflows every 524ms so if no // new data clear the...
Sunday, 27 June 2010 - 16:50
Input Capture Pin Difficulties
I don't see what your getting at. if I keep the previous value and then subtract it would make no difference in my linked program as the only thing timer0 is doing is a timeout to...
Sunday, 27 June 2010 - 07:00
Input Capture Pin Difficulties
Yea their is some differences in variable optimizations between compilers but I just used the un-optimized skeleton to re-work my project. This is the first real project I...
Saturday, 26 June 2010 - 20:01
Input Capture Pin Difficulties
Well I got the project working great now. I took a look at "easy rpm" in the projects page but it was coded for CodeVision and after I changed the function registers to avr-gcc's...
Saturday, 26 June 2010 - 17:24
Choosing A Compiler
Sorry if it was a bit disjointed after three days of trying things out I am seeing a bit red. I have tried many compilers such as: CodeVision ImageCraft IAR CrossWorks And the...
Friday, 11 June 2010 - 07:56
AT90USB1287 Need IO Header File
I am using the Dragon for JTAG and debugging. Running the program normally I send any character between 0 and J and I get a 0x80 in response anything else and I get no response at...
Wednesday, 26 May 2010 - 23:07

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