NPCS lines for SPI on UC3 Also, by having automatic dedicated chip select lines allows running the whole setup via DMA which gives you the capabilty of crazy fast I/O with no lines of code.
Best solution, Mega88, LEDs and FET What if you just have one transistor (BJT or FET, your choice) at the bottom of each diode chain and then do the muxing on the transistors (base or gate)?
timing capture glitch with TC0 and TC2 forming 32bit timer Don't know if this has anything to do with your problem but did you take into account the PWM errata? From the errata section of the datasheet:
2. PWN counter restarts at...
Tuesday, 7 April 2009 - 22:04
Varying exceptions problem What's your clock speed? Above 33Mhz you need to set the flash to 1 wait state.
Wednesday, 11 March 2009 - 23:09
TC multi IT handlers Yes, it is possible to have two different handler functions. Are you calling INTC_register_interrupt twice and with two different handler functions (i.e. timer_irq0 and...
Also, by having automatic dedicated chip select lines allows running the whole setup via DMA which gives you the capabilty of crazy fast I/O with no lines of code.
Also, R15 is the program counter so you can't use it as a general register.
Ground plane?
What is the version of your chip and what is your clock speed?
What if you just have one transistor (BJT or FET, your choice) at the bottom of each diode chain and then do the muxing on the transistors (base or gate)?
What clock speed are you running at? I have a EVK1100 that isn't stable above 56 MHz. Above 56 MHz I had symptoms similar to yours.
Don't know if this has anything to do with your problem but did you take into account the PWM errata? From the errata section of the datasheet: 2. PWN counter restarts at...
What's your clock speed? Above 33Mhz you need to set the flash to 1 wait state.
Yes, it is possible to have two different handler functions. Are you calling INTC_register_interrupt twice and with two different handler functions (i.e. timer_irq0 and...
Did you set the TEN bit (transfer enable) in the PDCA control register?
IIRC = "if I remember correctly" :)
try cranking up the pulse width; the init code you posted will only give a pulse one clock cycle wide.
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