No changes between revisions
/Designs/Measuring_instruments/RMDS02C/SW/Host_controller/setSi570.py
0,0 → 1,48
#!/usr/bin/python
#
# Utility for setting frequency of Si570 without a frequency measurement.
# The factory calibration is used for changing the frequency.
# This utility reset the Si570 to factory default 10 MHz first and than set a new frequency.
#
# This utility use an USBI2C01A module.
# (c) MLAB 2014
 
import time
import datetime
import sys
from pymlab import config
 
#### Script Arguments ###############################################
 
if (len(sys.argv) != 3):
sys.stderr.write("Invalid number of arguments.\n")
sys.stderr.write("Usage: %s PORT_ADDRESS/0 REQUIERED_MHz\n" % (sys.argv[0], ))
sys.exit(1)
 
port = eval(sys.argv[1])
#### Sensor Configuration ###########################################
 
cfg = config.Config(
port = port,
bus = [
{
"type": "i2chub",
"address": 0x70,
"children": [
{ "name":"clkgen", "type":"clkgen01", "channel": 5, },
],
},
],
)
cfg.initialize()
 
fgen = cfg.get_device("clkgen")
sys.stdout.write("Frequency will be set to " + sys.argv[2] + " MHz.\r\n")
fgen.reset() # Reset Si570 to 10 MHz
time.sleep(3)
fgen = cfg.get_device("clkgen") # Reopen CP2112
fgen.set_freq(10., float(eval(sys.argv[2]))) # Set frequency
sys.stdout.write("Done.\r\n")
sys.stdout.flush()
sys.exit(0)
 
/Designs/Measuring_instruments/RMDS02C/SW/Host_controller/frequency_log.py
0,0 → 1,76
#!/usr/bin/python
#
# Sample of measiring and correct frequency with ACOUNTER02A
 
import time
import datetime
import sys
from pymlab import config
 
#### Script Arguments ###############################################
 
if (len(sys.argv) > 3) or (len(sys.argv) < 2):
sys.stderr.write("Invalid number of arguments.\n")
sys.stderr.write("Usage: %s PORT_ADDRESS [REQUIERED_MHz]\n" % (sys.argv[0], ))
sys.exit(1)
 
port = eval(sys.argv[1])
#### Sensor Configuration ###########################################
 
cfg = config.Config(
port = port,
bus = [
{
"type": "i2chub",
"address": 0x70,
"children": [
{ "name":"counter", "type":"acount02", "channel": 2, },
{ "name":"clkgen", "type":"clkgen01", "channel": 5, },
],
},
],
)
cfg.initialize()
 
print "Frequency counter readout example \r\n"
fcount = cfg.get_device("counter")
fgen = cfg.get_device("clkgen")
time.sleep(0.5)
frequency = fcount.get_freq()
rfreq = fgen.get_rfreq()
hsdiv = fgen.get_hs_div()
n1 = fgen.get_n1_div()
fdco = 0
fxtal = 0
regs = [0, 0, 0]
 
 
#### Data Logging ###################################################
 
try:
with open("frequency.log", "a") as f:
while True:
now = datetime.datetime.now()
if (now.second == 15) or (now.second == 35) or (now.second == 55):
frequency = fcount.get_freq()
if (len(sys.argv) == 3):
regs = fgen.set_freq(frequency/1e6, float(eval(sys.argv[2])))
now = datetime.datetime.now()
 
rfreq = fgen.get_rfreq()
hsdiv = fgen.get_hs_div()
n1 = fgen.get_n1_div()
fdco = (frequency/1e6) * hsdiv * n1
fxtal = fdco / rfreq
 
sys.stdout.write("frequency: " + str(frequency) + " Hz Time: " + str(now.second))
sys.stdout.write(" RFREQ: " + str(rfreq) + " HSDIV: " + str(hsdiv) + " N1: " + str(n1))
sys.stdout.write(" fdco: " + str(fdco) + " fxtal: " + str(fxtal) + "\r")
f.write("%d\t%s\t%.3f\n" % (time.time(), datetime.datetime.now().isoformat(), frequency))
 
sys.stdout.flush()
time.sleep(0.9)
except KeyboardInterrupt:
sys.stdout.write("\r\n")
sys.exit(0)
f.close()
Property changes:
Added: svn:executable
+*
\ No newline at end of property
/Designs/Measuring_instruments/RMDS02C/SW/Host_controller/plot.gp
0,0 → 1,12
set terminal png size 800,640
 
set output "Frequency_time.png"
set xdata time
set timefmt "%s"
set format x "%H:%M:%S"
set key under
set xlabel "Time"
set ylabel "Freq deviation [Hz]"
f0=140000000
plot "temperature.log" using 1:($3-f0) with linespoints title "CLKGEN01B 140 MHz"
 
/Designs/Measuring_instruments/RMDS02C/SW/PIC16F887/main.c
0,0 → 1,171
// Atomic counter with I2C and RS232 output
 
// Usage conditions:
// 1. The first I2C or RS232 readout can be performed minimally 20 s after power up.
// 2. The I2C internal address 0 has to be read first.
// 3. An I2C readout can be performed at 15-th, 35-th and 55-th second of UTC.
//
// Counter gives 32 bit value:
// I2C register address 0 = LSB
// I2C register address 3 = MSB
 
#define ID "$Id: main.c 2916 2013-04-14 17:42:03Z kaklik $"
#include "main.h"
#use i2c(SLAVE, Fast, sda=PIN_C4, scl=PIN_C3, force_hw, address=0xA2)
 
#include <string.h>
 
#define SEL0 PIN_E0 // external counter division ratio
#define SEL1 PIN_E1 // external counter division ratio
#define MR PIN_E2 // external counter master reset
#define CLKI PIN_C0 // internal counter input
 
unsigned int32 count; // count per second
 
#define BUF_LEN 4
int8 buffer[BUF_LEN]; // I2C buffer
int8 address=0;
 
unsigned int16 of=0; // count of overflow
 
// 1x 100 us per 10 s UTC synchronised
const char cmd[40]={0xB5, 0x62, 0x06, 0x31, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32, 0x00, 0x00, 0x00, 0x80, 0x96, 0x98, 0x00, 0xE0, 0xC8, 0x10, 0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x73, 0x00, 0x00, 0x00, 0xC6, 0x51};
#INT_SSP
void ssp_interupt ()
{
int8 incoming, state;
 
state = i2c_isr_state();
 
if(state < 0x80) //Master is sending data
{
incoming = i2c_read(); // Read byte
 
if(state == 1) //Second received byte is address of register
{
address = incoming;
}
}
if(state == 0x80) //Master is requesting data
{
//i2c_read(); // Dummy read of I2C device address
if(address == 0) // Change buffer atomically at reading of the first byte
{
buffer[0]=make8(count,0);
buffer[1]=make8(count,1);
buffer[2]=make8(count,2);
buffer[3]=make8(count,3);
}
if(address <= BUF_LEN) i2c_write(buffer[address]); // Prepare one byte to SSP buffer
else
{
i2c_write(0x00); // There is nothing to prepare, so zero
}
}
 
if(state == 0x81) //Master is requesting data
{
i2c_write(buffer[1]); // Prepare next byte to SSP buffer
}
if(state == 0x82) //Master is requesting data
{
i2c_write(buffer[2]); // Prepare next byte to SSP buffer
}
if(state == 0x83) //Master is requesting data
{
i2c_write(buffer[3]); // Prepare next byte to SSP buffer
}
 
if(state > 0x83) //Master is requesting data
{
i2c_write(0x00); // There is nothing to prepare, so zero
}
}
 
 
 
#int_EXT // Interrupt from 1PPS (RB0)
void EXT_isr(void)
{
unsigned int16 countH;
unsigned int8 countL;
int16 of2;
of2=of; // read overflow counter
countH=get_timer1(); // read internal counter
countL=0;
output_low(SEL0);
output_low(SEL1);
countL=input(CLKI); // read bit 0 of external counter
output_high(SEL0);
// output_low(SEL1);
countL|=input(CLKI)<<1; // read bit 1 of external counter
output_low(SEL0);
output_high(SEL1);
countL|=input(CLKI)<<2; // read bit 2 of external counter
output_high(SEL0);
// output_high(SEL1);
countL|=input(CLKI)<<3; // read bit 3 of external counter
 
output_low(MR); // External counter Master Reset
output_high(MR);
set_timer1(0); // Internal counter reset
of=0; // Overflow counter reset
count=((unsigned int32)of2<<20)+((unsigned int32)countH<<4)+(unsigned int32)countL; // concatenate
 
// printf("%010Lu\r\n", count);
}
 
#int_TIMER1 // Interrupf from overflow
void TIMER1_isr(void)
{
of++;
}
 
 
void main()
{
setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_OFF);
// setup_spi(SPI_SS_DISABLED); //must not be set if I2C are in use!
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_wdt(WDT_2304MS);
setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
 
restart_wdt();
delay_ms(1000);
restart_wdt();
// setup GPS
{
int n;
for (n=0;n<40;n++) putc(cmd[n]);
}
 
ext_int_edge( L_TO_H ); // set 1PPS active edge
enable_interrupts(INT_TIMER1);
enable_interrupts(INT_EXT);
enable_interrupts(INT_SSP);
enable_interrupts(GLOBAL);
buffer[0]=0x0; // Clear I2C output buffer
buffer[1]=0x0;
buffer[2]=0x0;
buffer[3]=0x0;
 
printf("\r\ncvak...\r\n");
 
while(true)
{
restart_wdt();
delay_ms(1500);
// printf("%X %X %X %X\r\n", buffer[0],buffer[1],buffer[2],buffer[3]);
printf("%010Lu\r\n", count);
}
}
/Designs/Measuring_instruments/RMDS02C/SW/PIC16F887/main.hex
0,0 → 1,112
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;PIC16F887
;CRC=F2B1 CREATED="21-II-14 12:29"
/Designs/Measuring_instruments/RMDS02C/SW/PIC16F887/main.h
0,0 → 1,21
#include <16F887.h>
#device adc=8
 
#FUSES WDT //Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES PUT //Power Up Timer
#FUSES MCLR //Master Clear pin enabled
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOCPD //No EE protection
#FUSES NOBROWNOUT //No brownout reset
#FUSES IESO //Internal External Switch Over mode enabled
#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOWRT //Program memory not write protected
#FUSES BORV40 //Brownout reset at 4.0V
 
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,errors)