is there any official code examples ?
I can't get the HSADC work.
this is my code:
initial:______________________________________________________________________________
writel(0x50000000, clk_base + HW_CLKCTRL_HSADC); /* M = 18;RST=High; */
*((u8*)(clk_base + HW_CLKCTRL_FRAC1 + 1)) = 30; /* HSADC=480*(M/N)=288MHz */
*((u8*)(clk_base + HW_CLKCTRL_FRAC1_CLR + 1)) = 0x80; /* clear HSADC_CLK_GATE */
writel(0xF0000000, hsadc_base + HW_HSADC_CTRL0_CLR); /* normal run;trigger is sw */
writel(0x0000000F, hsadc_base + HW_HSADC_CTRL2_SET); /* precharge before convert */
/* set pin to HSADC */
writel(0x00000003, hsadc_base + HW_HSADC_SEQUENCE_SAMPLES_NUM);/* 1 sample per sequence */
writel(0x00000003, hsadc_base + HW_HSADC_SEQUENCE_NUM); /* 1 sequence per trig */
writel(0xFC000000, hsadc_base + HW_HSADC_CTRL1_CLR); /* disable all interrupt */
writel(0x01C00001, hsadc_base + HW_HSADC_CTRL0_SET); /* 4 discard & 12bit mode */
/* get the HSADC running */
read the value:________________________________________________________________________
// while((readl(hsadc_base + HW_HSADC_CTRL1) & 0x00000020)){ /* if empty then */
writel(0x08000000, hsadc_base + HW_HSADC_CTRL0_SET); /* trig it! */
// }
iRes = readl(hsadc_base + HW_HSADC_FIFO_DATA);
it just not work...
any help will be apreciated...
