Franco Patane
Clock generator @ 145 MHz and 7 mhz
Fork of
Check_Si5351A_Clock_generator
by 
Kenji Arai
Revision 6:c99750606e25, committed 2018-03-27
- Comitter:
- it9jru
- Date:
- Tue Mar 27 06:37:32 2018 +0000
- Parent:
- 5:e32ef4b85317
- Commit message:
- Clock generator @ 145 MHz and 7 MHz
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Mar 27 06:37:32 2018 +0000
@@ -0,0 +1,48 @@
+#include "mbed.h"
+#include "si5351a.h"
+
+Serial pc(USBTX, USBRX);
+
+I2C i2c(I2C_SDA, I2C_SCL); // communication with Si5351A
+SI5351A clk(i2c, 24998410UL); // Base clock = 25MHz
+
+int main() {
+ uint32_t num=145000000;
+
+ clk.set_frequency(SI5351_CLK0, 7000000); // CLK0=7MHz
+
+ clk.set_frequency(SI5351_CLK1,num); // CLK0=145MHz
+
+ while(true) {
+
+ //wait(1);
+ num = num + 10000;
+
+ pc.printf("%d scrivo -\r\n", num);
+
+ /* clk.set_frequency(SI5351_CLK1,num);
+ if (num>146000000)
+ {
+ num=145000000;
+ }*/
+ }
+}
+
+// --------- CAUTION & RESTRICTION -----------------------------------------
+// 1) SETTING METHOD
+// 2.6KHz~100MHz: fixed PLL(around 900 or around 600MHz), fractional divider
+// 100~150MHz: fractional PLL 600-900MHz, fixed divider 6
+// 150~200MHz: fractional PLL 600-900MHz, fixed divider 4
+//
+// 2) RESOURCE USAGE
+// PLLA -> only for CLK0 (You can change freqency any time to any value.)
+// PLLB -> use for bothe CLK1 & CLK2
+// If you set a freq. less than 100MHz,
+// You can change both CLK1 & CLK2 independently.
+// Over 100MHz, you may have a trouble becase need to change PLLB freq.
+//
+// 3) DISCONTINUITY
+// If you use multiple output, you will lose output signal when you change
+// the output frequency even not specific CLKn during I2C acccess.
+// --------------------------------------------------------------------------
+
\ No newline at end of file
--- a/si5351a_check.cpp Wed Aug 23 09:54:05 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,628 +0,0 @@
-/*
- * mbed Application program / Si5351A sample program
- * tested on:
- * ST Nucleo-F411RE & F401RE
- * LPC1114FN28
- *
- * Copyright (c) 2016,'17 Kenji Arai / JH1PJL
- * http://www.page.sannet.ne.jp/kenjia/index.html
- * http://mbed.org/users/kenjiArai/
- * Created: December 28th, 2016
- * Revised: January 7th, 2017
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-// Include --------------------------------------------------------------------
-#include "mbed.h"
-#include "si5351a.h"
-#include "si5351a_check.h"
-
-// Definition -----------------------------------------------------------------
-
-// Object ---------------------------------------------------------------------
-Serial pc(USBTX, USBRX);
-//I2C i2c(dp5, dp27); // communication with Si5351A
-I2C i2c(I2C_SDA, I2C_SCL); // communication with Si5351A
-SI5351A clk(i2c, 25000000UL); // base clock = 25.0MHz
-
-// RAM ------------------------------------------------------------------------
-bool one_char = false;
-
-// ROM / Constant data --------------------------------------------------------
-#if defined(RANGE_EXTENDED)
-static const uint32_t freq_tbl[] =
-{
- 1628, 1800, 1900, 2000, 2500, 2604, 2605, 2700, 3000, // 1.627KHz-3KHz
- // Above includes out of range freq.
- 4000, 5000, 8000, // 4KHz-8KHz
- 10000, 20000, 50000, 80000, // 10KHz-80KHz
- 100000, 200000, 500000, 800000, // 100KHz-800KHz
- 1000000, 2000000, 5000000, 8000000, // 1MHz-8MHz
- 10000000, 20000000, 50000000, 80000000, // 10MHz-80MHz
- 100000000, 150000000, 200000000, // 100MHz-200MHz
- // Belows are out of Si5351A specification !!!!
- 220000000, 250000000, 280000000, 300000000,// 200MHz-300MHz
- 0 // Terminate data!!
-};
-#else
-static const uint32_t freq_tbl[] =
-{
- 2605, 4000, 5000, 8000, // 2.6KHz-8KHz
- 10000, 20000, 50000, 80000, // 10KHz-80KHz
- 100000, 200000, 500000, 800000, // 100KHz-800KHz
- 1000000, 2000000, 5000000, 8000000, // 1MHz-8MHz
- 10000000, 20000000, 50000000, 80000000, // 10MHz-80MHz
- 100000000, 150000000, 200000000, // 100MHz-200MHz
- 0 // Terminate data!!
-};
-#endif
-
-//------------------------------------------------------------------------------
-// Control Program
-//------------------------------------------------------------------------------
-int main()
-{
- while (true){ test_si5351();}
-}
-
-// Help Massage
-void msg_hlp (void)
-{
- PRINTF(opening_msg);
- put_rn();
-#if defined(RANGE_EXTENDED)
- PRINTF("0 - Check CLK0 output between 1.627KHz to 300MHz");
- put_rn();
- PRINTF("-> You are using RANGE_EXTENDED (defined in si5351a.h)");
- put_rn();
- PRINTF("-> In RANGE_EXTENDED mode, PLL sets 250MHz to 1.3GHz");
- put_rn();
- PRINTF("-> This causes high possibility to make a PARMANENT DAMAGE");
- PRINTF(" for the chip!");
- put_rn();
- PRINTF("-> Don't use this mode!!!");
-#else
- PRINTF("0 - Check CLK0 output between 2.605KHz to 200MHz");
-#endif
- put_rn();
- PRINTF("1 - Check CLK1 (same as #1)");
- put_rn();
- PRINTF("2 - Check CLK2 (same as #1)");
- put_rn();
- PRINTF("3 - Example CLK0:120.00MHz, CLK1:12.00MHz, CLK2:13.56MHz");
- PRINTF("-> No wat to apply a frequency compensation");
- put_rn();
- PRINTF("4 - Set desired freq. into CLK0");
- put_rn();
- PRINTF("5 - Set desired freq. into CLK0 & CLK1");
- put_rn();
- PRINTF("6 - Set desired freq. into CLK0, CLK1 & CLK2");
- put_rn();
- PRINTF("7 - CLK0: set desired center freq. then shift +/- range");
- put_rn();
- PRINTF("a - All clear registers");
- put_rn();
- PRINTF("c - Show current configration");
- put_rn();
- PRINTF("p - Compensation");
- put_rn();
- PRINTF("r - Show current resisters");
- put_rn();
- PRINTF("x - Go to special command");
- put_rn();
- PRINTF("Hit any key then return to prompt screen");
- put_rn();
- PRINTF("Reset mbed board -> please hit key <Alt>+<B>");
- put_rn();
-}
-
-// ---------- Program starts here! ---------------------------------------------
-void test_si5351(void)
-{
- char *ptr;
- int32_t f;
-
- BAUD(BAUD_RATE);
- put_rn();
- put_rn();
- PRINTF("%s [Help:'?' key]", opening_msg);
- put_rn();
-#if defined(RANGE_EXTENDED)
- PRINTF("-> You are using RANGE_EXTENDED (defined in si5351a.h)");
- put_rn();
- PRINTF("-> In RANGE_EXTENDED mode, PLL sets 375MHz to 1.3GHz");
- put_rn();
- PRINTF("-> This causes high possibility to make a PARMANENT DAMAGE");
- PRINTF(" for the chip!");
- put_rn();
-#endif
- clk.all_reset();
- for (;;) {
- put_r();
- PUTC('>');
- ptr = linebuf;
- get_line(ptr, sizeof(linebuf));
- put_r();
- switch (*ptr++) {
- //--------------------------------------------------------------
- // test0
- //--------------------------------------------------------------
- case '0' :
- clk.all_reset();
- test(0);
- //put_rn();
- break;
- //--------------------------------------------------------------
- // test1
- //--------------------------------------------------------------
- case '1' :
- clk.all_reset();
- test(1);
- //put_rn();
- break;
- //--------------------------------------------------------------
- // test2
- //--------------------------------------------------------------
- case '2' :
- clk.all_reset();
- test(2);
- //put_rn();
- break;
- //--------------------------------------------------------------
- // test3
- //--------------------------------------------------------------
- case '3' :
- clk.debug_example_clock();
- //clk.debug_reg_print();
- //put_rn();
- break;
- //--------------------------------------------------------------
- // test4
- //--------------------------------------------------------------
- case '4' :
- clk.all_reset();
- PRINTF("CLK0 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK0:%u [Hz]", clk.set_frequency(0, f));
- } else {
- PUTC('?');
- }
- put_rn();
- break;
- //--------------------------------------------------------------
- // test5
- //--------------------------------------------------------------
- case '5' :
- clk.all_reset();
- PRINTF("CLK0 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK0:%u [Hz]", clk.set_frequency(0, f));
- } else {
- PUTC('?');
- }
- put_rn();
- PRINTF("CLK1 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK1:%u [Hz]", clk.set_frequency(1, f));
- } else {
- PUTC('?');
- }
- put_rn();
- break;
- //--------------------------------------------------------------
- // test6
- //--------------------------------------------------------------
- case '6' :
- clk.all_reset();
- PRINTF("CLK0 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK0:%u [Hz]", clk.set_frequency(0, f));
- } else {
- PUTC('?');
- }
- put_rn();
- PRINTF("CLK1 %s", msg0);
- put_rn();
- PRINTF(
- "If you set CLK1 over 100MHz, you cannt set CLK2 anymore");
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK1:%u [Hz]", clk.set_frequency(1, f));
- } else {
- PUTC('?');
- }
- put_rn();
- PRINTF("CLK2 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK2:%u [Hz]", clk.set_frequency(2, f));
- } else {
- PUTC('?');
- }
- put_rn();
- break;
- //--------------------------------------------------------------
- // test7 CLK0: set desired center freq. then shift +/- range
- //--------------------------------------------------------------
- case '7' :
- one_char = true;
- clk.all_reset();
- PRINTF("CLK0 %s", msg0);
- put_rn();
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- if (xatoi(&ptr,&f)){
- if (f < 0){ break;}
- PRINTF("CLK0:%u [Hz]", clk.set_frequency(0, f));
- } else {
- PUTC('?');
- put_r();
- }
- put_rn();
- PRINTF("Please enter sift command [Help: ?]");
- put_rn();
- while (true){
- PRINTF("[S]>");
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- switch(*ptr) {
- case 'P' :
- PRINTF("Shift to %u [Hz]", clk.shift_freq(0, 100));
- put_rn();
- break;
- case 'p' :
- PRINTF("Shift to %u [Hz]", clk.shift_freq(0, 10));
- put_rn();
- break;
- case 'M' :
- PRINTF("Shift to %u [Hz]", clk.shift_freq(0, -100));
- put_rn();
- break;
- case 'm' :
- PRINTF("Shift to %u [Hz]", clk.shift_freq(0, -10));
- put_rn();
- break;
- case 's' :
- ptr++;
- xatoi(&ptr,&f);
- PRINTF("offset=%d\r\n", f);
- PRINTF("Shift to %u [Hz]", clk.shift_freq(0, f));
- put_rn();
- break;
- case '?' :
- PRINTF("p -> +10Hz, P -> +100Hz");
- put_rn();
- PRINTF("m -> -10Hz, M -> -100Hz");
- put_rn();
- PRINTF("s -> Shift +/-x Hz (example -100)");
- put_rn();
- PRINTF("? -> You know this");
- put_rn();
- PRINTF("e -> Exit");
- put_rn();
- break;
- case 'e' :
- break;
- default:
- PUTC('?');
- put_rn();
- }
- if (*ptr == 'e'){
- break;
- }
- }
- one_char = false;
- break;
- //--------------------------------------------------------------
- // All clear alll registers
- //--------------------------------------------------------------
- case 'a' :
- clk.all_reset();
- PRINTF("Cleared all of registers!\r\n");
- break;
- //--------------------------------------------------------------
- // Show configration
- //--------------------------------------------------------------
- case 'c' :
- clk.debug_current_config();
- //put_rn();
- break;
- //--------------------------------------------------------------
- // Compensation
- //--------------------------------------------------------------
- case 'p' :
- clk.set_frequency(0, 25000000); // Set CLK0=10MHz
- PRINTF(
- "Please measure Clock0 output frequency (aound 25MHz)\r\n");
- PRINTF("Enter your mesured data = ");
- ptr = linebuf;
- get_line(ptr, buf_size);
- if (xatoi(&ptr,&f)){
- if (f < 0){
- PUTC('?');
- break;
- }
- PRINTF("\r%u [Hz]\r\n", f);
- clk.f_compensation(25000000, f);
- clk.debug_current_config();
- } else {
- PUTC('?');
- }
- break;
- //--------------------------------------------------------------
- // Show resisters
- //--------------------------------------------------------------
- case 'r' :
- clk.debug_reg_print();
- //put_rn();
- break;
- //--------------------------------------------------------------
- // Go to special command
- //--------------------------------------------------------------
- case 'x' :
- special_command();
- break;
- //--------------------------------------------------------------
- // help
- //--------------------------------------------------------------
- case '?' :
- msg_hlp();
- break;
- //--------------------------------------------------------------
- // no support
- //--------------------------------------------------------------
- default:
- PUTC('?');
- put_rn();
- break;
- }
- }
-}
-
-#if defined(INCREMENT)
-void test(uint8_t channel)
-{
- uint32_t f_set = 4000; // 4KHz
- double f = 0;
- uint32_t flg = 0;
- char *ptr;
- int32_t seconds = 1;
-
- clk.all_reset();
- f = clk.set_frequency(channel, f_set);
- clk.debug_reg_print();
- PRINTF("CLK%u = %10.6f MHz\r\n", channel, f / 1000000.0f);
- PRINTF("Please enter interval time[sec] -> ");
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- xatoi(&ptr,&seconds);
- if (seconds <= 0){ seconds = 1;}
- if (seconds > 1000){ seconds = 1000;}
- PRINTF("%u[sec]\r\n", seconds);
- while(true){
- f = clk.set_frequency(channel, f_set);
- PRINTF("CLK%u = %10.6f MHz\r\n", channel, f / 1000000.0f);
- if (flg){
- f_set = f * 0.95f;
- if (f_set < 5000){
- flg = 0;
- }
- } else {
- f_set = f * 1.05f;
- if (f_set > 190000000){
- flg = 1;
- }
- }
- if (READABLE()) {
- GETC();
- return;
- }
- delay(seconds);
- }
-}
-#endif
-
-#if defined(TABLE_LOOK)
-void test(uint8_t channel)
-{
- uint32_t f_set = 0;
- uint32_t i,j;
- double f = 0;
- char *ptr;
- int32_t seconds = 1;
-
- clk.all_reset();
- PRINTF("Please enter interval time[sec] -> ");
- ptr = linebuf;
- get_line(ptr, buf_size);
- put_r();
- xatoi(&ptr,&seconds);
- if (seconds <= 0){ seconds = 1;}
- if (seconds > 1000){ seconds = 1000;}
- PRINTF("%u[sec]\r\n", seconds);
- while(true){
- for (i = 0; ; i++){
- f_set = freq_tbl[i];
- if (f_set == 0){
- break;
- }
- f = clk.set_frequency(channel, f_set);
- PRINTF("CLK%u = %10.6f MHz\r\n", channel, f / 1000000.0f);
- if (READABLE()) {
- GETC();
- return;
- }
- delay(seconds);
- }
- for (j = i - 2; j > 0 ; j--){
- f_set = freq_tbl[j];
- f = clk.set_frequency(channel, f_set);
- PRINTF("CLK%u = %10.6f MHz\r\n", channel, f / 1000000.0f);
- if (READABLE()) {
- GETC();
- return;
- }
- delay(seconds);
- }
- }
-}
-#endif
-
-void special_command(void)
-{
- PRINTF("Not impliment yet");
- put_rn();
-}
-
-void delay(int32_t time)
-{
-#if MBED_MAJOR_VERSION == 2
- wait((float)time);
-#elif MBED_MAJOR_VERSION == 5
- Thread::wait(time * 1000);
-#else
-#error "Running on Unknown OS"
-#endif
-}
-
-// Put \r\n
-void put_rn ( void )
-{
- PUTC('\r');
- PUTC('\n');
-}
-
-// Put \r
-void put_r ( void )
-{
- PUTC('\r');
-}
-
-// Change string -> integer
-int xatoi (char **str, int32_t *res)
-{
- uint32_t val;
- int8_t c, radix, s = 0;
-
- while ((c = **str) == ' ') (*str)++;
- if (c == '-') {
- s = 1;
- c = *(++(*str));
- }
- if (c == '+') {
- c = *(++(*str));
- }
- if (c == '0') {
- c = *(++(*str));
- if (c <= ' ') {
- *res = 0;
- return 1;
- }
- if (c == 'x') {
- radix = 16;
- c = *(++(*str));
- } else {
- if (c == 'b') {
- radix = 2;
- c = *(++(*str));
- } else {
- if ((c >= '0')&&(c <= '9')) {
- radix = 8;
- } else {
- return 0;
- }
- }
- }
- } else {
- if ((c < '1')||(c > '9')) {
- return 0;
- }
- radix = 10;
- }
- val = 0;
- while (c > ' ') {
- if (c >= 'a') c -= 0x20;
- c -= '0';
- if (c >= 17) {
- c -= 7;
- if (c <= 9) return 0;
- }
- if (c >= radix) return 0;
- val = val * radix + c;
- c = *(++(*str));
- }
- if (s) val = -val;
- *res = val;
- return 1;
-}
-
-// Get key input data
-void get_line (char *buff, int len)
-{
- char c;
- int idx = 0;
-
- for (;;) {
- c = GETC();
- if (c == '\r') {
- buff[idx++] = c;
- break;
- }
- if ((c == '\b') && idx) {
- idx--;
- PUTC(c);
- PUTC(' ');
- PUTC(c);
- }
- if (((uint8_t)c >= ' ') && (idx < len - 1)) {
- buff[idx++] = c;
- PUTC(c);
- // Special control
- if (one_char == true){
- if ((c == 'p') || (c == 'm') || (c == 'P') || (c == 'M')){
- break;
- }
- }
- }
- }
- buff[idx] = 0;
- PUTC('\n');
-}
--- a/si5351a_check.h Wed Aug 23 09:54:05 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,61 +0,0 @@
-/*
- * mbed Application program / Si5351A sample program
- * tested on:
- * ST Nucleo-F411RE & F401RE
- * LPC1114FN28
- *
- * Copyright (c) 2016,'17 Kenji Arai / JH1PJL
- * http://www.page.sannet.ne.jp/kenjia/index.html
- * http://mbed.org/users/kenjiArai/
- * Created: December 28th, 2016
- * Revised: January 7th, 2017
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-// Definition -----------------------------------------------------------------
-#define BAUD(x) pc.baud(x)
-#define GETC(x) pc.getc(x)
-#define PUTC(x) pc.putc(x)
-#define PRINTF(...) pc.printf(__VA_ARGS__)
-#define READABLE(x) pc.readable(x)
-
-#define BAUD_RATE 9600
-
-#if 1
-#define INCREMENT // command 1,2,3 -> INCREMENT or TABLE_LOOK
-#endif
-#if !defined(INCREMENT)
-#define TABLE_LOOK
-#endif
-
-// Object ---------------------------------------------------------------------
-
-// RAM ------------------------------------------------------------------------
-char linebuf[64];
-int buf_size = sizeof(linebuf);
-
-// ROM / Constant data --------------------------------------------------------
-char *const opening_msg =
- "Si5351 test program, created on UTC: "__DATE__"("__TIME__")";
-char *const msg0 = "output: Please enter freq. ex 1230000";
-
-// Function prototypes --------------------------------------------------------
-void msg_hlp(void);
-void test(uint8_t channel);
-void test_si5351(void);
-void special_command(void);
-void put_rn( void );
-void put_r( void );
-void put_lin( void );
-void put_spc( uint8_t n);
-int xatoi(char **str, int32_t *res);
-void get_line(char *buff, int len);
-void get_line_no_param(char *buff);
-void delay(int32_t time);
\ No newline at end of file