Hi Wolfram,
On Friday 31 October 2014 11:51:15 Wolfram Sang wrote:
Here is my RFC to support DMA with the i2c-sh_mobile core. DMA works nicely
with my tests so far and we save 1 interrupt per transferred byte, yay!
Do we have an idea of how much power (or CPU time ?) DMA support could save ?
Here is my RFC to support DMA with the i2c-sh_mobile core. DMA works nicely
with my tests so far and we save 1 interrupt per transferred byte, yay!
Do we have an idea of how much power (or CPU time ?) DMA support could save ?
I have some numbers from the function tracer, but I don't trust
Here is my RFC to support DMA with the i2c-sh_mobile core. DMA works nicely
with my tests so far and we save 1 interrupt per transferred byte, yay! DMA is
opt-in, so if setting it up fails, we will fall back to PIO. The threshold for
selecting DMA is still under test, but probably good enough
