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Merge pull request #75 from Hoernchen/siclock

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Michael Ossmann
2013-06-07 20:34:28 -07:00
parent f88d206340 cf8f7644c9
commit f522e8a326
5 changed files with 79 additions and 48 deletions
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7
firmware/common/hackrf_core.c
View File

@ -49,6 +49,9 @@ bool set_fracrate(const float freq) {
if(a != div){
uint32_t j=0,k=1,l=1,m=1;
si5351c_set_int_mode(0, 0);
while (k <= 0xFFFF && m <= 0xFFFF){
float n = (float)(j+l)/(k+m);
if( x == n){
@ -77,6 +80,10 @@ bool set_fracrate(const float freq) {
b=j; c=k;
}
} else {
if(a & 0x1) // odd integer, needs frac mode
si5351c_set_int_mode(0, 0);
else
si5351c_set_int_mode(0, 1);
b=0; c=1;
}

18
firmware/common/si5351c.c
View File

@ -249,3 +249,21 @@ void si5351c_configure_clock_control()
uint8_t data[] = { 3, 0xC8 };
si5351c_write(data, sizeof(data));
}
void si5351c_set_int_mode(const uint_fast8_t ms_number, const uint_fast8_t on){
uint8_t data[] = {16, 0};
if(ms_number < 8){
data[0] = 16 + ms_number;
data[1] = si5351c_read_single(data[0]);
if(on)
data[1] |= SI5351C_CLK_INT_MODE;
else
data[1] &= ~(SI5351C_CLK_INT_MODE);
si5351c_write(data, 2);
}
}

1
firmware/common/si5351c.h
View File

@ -67,6 +67,7 @@ void si5351c_configure_multisynth(const uint_fast8_t ms_number,
const uint_fast8_t r_div);
void si5351c_configure_clock_control();
void si5351c_enable_clock_outputs();
void si5351c_set_int_mode(const uint_fast8_t ms_number, const uint_fast8_t on);
void si5351c_write_single(uint8_t reg, uint8_t val);
uint8_t si5351c_read_single(uint8_t reg);

9
host/hackrf-tools/src/hackrf_si5351c.c
View File

@ -142,9 +142,13 @@ int dump_multisynth_config(hackrf_device* device, const uint_fast8_t ms_number)
printf("\tp1 = %u\n", p1);
printf("\tp2 = %u\n", p2);
printf("\tp3 = %u\n", p3);
if(p3)
printf("\tOutput (800Mhz PLL): %#.10f Mhz\n", (800 / (float)((p1*p3 + p2 + 512*p3)/(128*p3))) / div_lut[r_div] );
} else {
// MS6 and 7 are integer only
unsigned int parms;
reg_base = 90;
for(i=0; i<3; i++) {
uint_fast8_t reg_number = reg_base + i;
int result = hackrf_si5351c_read(device, reg_number, &parameters[i]);
@ -154,7 +158,10 @@ int dump_multisynth_config(hackrf_device* device, const uint_fast8_t ms_number)
}
r_div = (ms_number == 6) ? parameters[2] & 0x7 : parameters[2] & 0x70 >> 4 ;
printf("\tp1_int = %u\n", (ms_number == 6) ? parameters[0] : parameters[1]);
parms = (ms_number == 6) ? parameters[0] : parameters[1];
printf("\tp1_int = %u\n", parms);
if(parms)
printf("\tOutput (800Mhz PLL): %#.10f Mhz\n", (800.0f / parms) / div_lut[r_div] );
}
printf("\toutput divider = %u\n", div_lut[r_div]);

2
host/libhackrf/src/hackrf.c
View File

@ -770,8 +770,6 @@ typedef struct {
int ADDCALL hackrf_set_fracrate(hackrf_device* device, const float freq_mhz)
{
uint32_t l_freq_mhz;
uint32_t l_freq_hz;
set_fracrate_params_t set_fracrate_params;
uint8_t length;
int result;