Skip to content

S
Software for White Rabbit PTP Core
Commit 23a0d3a1 authored by Tomasz Wlostowski's avatar Tomasz Wlostowski Committed by Grzegorz Daniluk
Browse files
Options

boards/afcz: enable VCO APR check by default

parent 3adcd26d
Hide whitespace changes
Inline Side-by-side
Showing with 17 additions and 9 deletions
boards/afcz/board.c
View file @ 23a0d3a1
......@@ -435,21 +435,24 @@ static int calc_apr(int meas_min, int meas_max, int f_center )
static void check_vco_freq( int cm_channel, int cm_ref, void (*dac_setter)(int ))
{
int f_min, f_max;
wb_cm_configure( &board.clk_mon, cm_ref, 2, 10000000 );
wb_cm_configure( &board.clk_mon, cm_ref, 5, 1000000 );
wb_cm_set_ref_frequency( &board.clk_mon, CPU_CLOCK );
dac_setter( 0 );
timer_delay_ms( 10 );
timer_delay_ms(1);
wb_cm_restart( &board.clk_mon );
while( ! (wb_cm_read( &board.clk_mon ) & ( 1<< cm_channel) ) );
f_min = board.clk_mon.freqs[ cm_channel ];
dac_setter( 65535 );
timer_delay_ms( 10 );
timer_delay_ms( 1 );
wb_cm_restart( &board.clk_mon );
while( ! (wb_cm_read( &board.clk_mon ) & ( 1<< cm_channel) ) );
f_max = board.clk_mon.freqs[ cm_channel ];
dac_setter( 32768 );
timer_delay(1);
pp_printf("VCO ch %d: Low=%d Hz Hi=%d Hz, APR = %d ppm.\n", cm_channel, f_min, f_max, calc_apr(f_min, f_max, 62500000) );
}
......@@ -584,9 +587,16 @@ int wrc_board_early_init()
tca9548_select_channels( &board.si57x.master, 0x70, 1 << AFCZ_I2C_MUX_CHANNEL_SI570 );
// check_vco_freq( AFCZ_CM_CHANNEL_CLK_DMTD, AFCZ_CM_CHANNEL_CLK_SYS, set_dmtd_dac );
//check_vco_freq( AFCZ_CM_CHANNEL_CLK_REF, AFCZ_CM_CHANNEL_CLK_SYS, set_main_dac );
#if 1
set_dmtd_dac(32767);
set_main_dac(32767);
// cross-check the REF and DDMTD clocks
pp_printf("Checking DDMTD and REF clock frequencies:\n");
check_vco_freq( AFCZ_CM_CHANNEL_CLK_DMTD, AFCZ_CM_CHANNEL_CLK_REF, set_dmtd_dac );
check_vco_freq( AFCZ_CM_CHANNEL_CLK_REF, AFCZ_CM_CHANNEL_CLK_DMTD, set_main_dac );
#endif
return 0;
}
......
boards/afcz/board.h
View file @ 23a0d3a1
......@@ -26,9 +26,7 @@
#define BASE_CLOCK_MONITOR (BASE_AUXWB + 0xc0)
#define AFCZ_CM_CHANNEL_CLK_PCB 0
#define AFCZ_CM_CHANNEL_CLK_PHY_RX 1
#define AFCZ_CM_CHANNEL_CLK_REF 2
#define AFCZ_CM_CHANNEL_CLK_SYS 3
#define AFCZ_CM_CHANNEL_CLK_REF 1
#define AFCZ_CM_CHANNEL_CLK_DMTD 5
#define AFCZ_IC33_CLK_SI570_1_IN 13
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment