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White Rabbit Switch - Software
Commit 0bc237b6 authored by Benoit Rat's avatar Benoit Rat Committed by Alessandro Rubini
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libswitchhw: improve pwm fan control

parent 78719448
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Showing with 4 additions and 7 deletions
userspace/libswitchhw/fan.c
View file @ 0bc237b6
......@@ -141,11 +141,8 @@ void pwm_configure_fpga(int enmask, float rate)
{
uint8_t u8speed=(uint8_t)((rate>=1)?0xff:(rate*255.0));
if(enmask & 0x1) spwm_wbr->DR0=u8speed;
else spwm_wbr->DR0=0;
if(enmask & 0x2) spwm_wbr->DR1=u8speed;
else spwm_wbr->DR0=0;
if((enmask & 0x1)>0) spwm_wbr->DR0=u8speed;
if((enmask & 0x2)>0) spwm_wbr->DR1=u8speed;
}
/* Configures a PWM output. Rate accepts range is from 0 (0%) to 1 (100%) */
......@@ -241,8 +238,8 @@ int shw_init_fans()
//Point to the corresponding WB direction
spwm_wbr= (volatile struct SPWM_WB *) (FPGA_BASE_ADDR + FPGA_BASE_SPWM);
//Configure SPWM register the 60=(62.5MHz÷(4kHz×2^8))−1
val= SPWM_CR_PRESC_W(60) | SPWM_CR_PERIOD_W(255);
//Configure SPWM register the 30~=(62.5MHz÷(8kHz×2^8))−1
val= SPWM_CR_PRESC_W(30) | SPWM_CR_PERIOD_W(255);
spwm_wbr->CR=val;
fan_pi.ki = 1.0;
......
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