finga/clock_generator
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Compare commits

base: finga:af3790be0dfe7f02770c72bc7976a929059d0574
Branches Tags
finga:main
..
compare: finga:56053c7f33bc7a18e39e21e5eb0fb36e09b502bf
Branches Tags
finga:main

No commits in common. "af3790be0dfe7f02770c72bc7976a929059d0574" and "56053c7f33bc7a18e39e21e5eb0fb36e09b502bf" have entirely different histories.
af3790be0d ... 56053c7f33

2 changed files with 15 additions and 490 deletions
Show stats Expand all files Collapse all files

0
firmware/c/Makefile → firmware/src/Makefile
View file

505
firmware/c/main.c → firmware/src/main.c
View file

@ -25,10 +25,6 @@
#define SI5351_ADDRESS 0x60
#define SI5351_REGISTER_3_OUTPUT_ENABLE_CONTROL 3
// ...
#define SI5351_REGISTER_26_MSNA 26
#define SI5351_REGISTER_34_MSNB 34
// ...
#define SI5351_REGISTER_177_PLL_RESET 177
#define SYM_ENTRY(SYM) { SYM, sizeof(SYM) / 2 }
@ -169,30 +165,15 @@ static const struct symbol symbol_table[] = { SYM_ENTRY(sym_0),
enum input { cw, ccw, click, hold };
static volatile enum state { home, ch1, ch2, ch3, plla, pllb, setup } current_state = home;
static volatile enum state { home, ch1, ch2, ch3, setup } current_state = home;
static volatile enum state home_state = ch1;
static volatile enum setup_state { contrast, backlight, back, change_contrast, change_backlight } setup_state = contrast;
static volatile enum pll_state { integer, numerator, denominator, pll_back, change_integer, change_numerator, change_denominator } pll_state = integer;
static volatile uint8_t enc = 0;
static volatile uint8_t select_offset = 0;
static volatile uint8_t digit_select = 0;
static volatile uint8_t max_digits = 0;
static volatile bool digit_selected = false;
static volatile uint8_t value_contrast;
static volatile uint8_t value_backlight;
struct pll_config {
uint8_t reg;
uint32_t integer;
uint32_t numerator;
uint32_t denominator;
};
static volatile struct pll_config plla_config = { SI5351_REGISTER_26_MSNA, 0, 0, 0 };
static volatile struct pll_config pllb_config = { SI5351_REGISTER_34_MSNB, 0, 0, 0 };
static const uint8_t m_si5351_regs_15to92_149to170[100][2] = {
// Init
{3, 0xFF},
@ -210,20 +191,15 @@ static const uint8_t m_si5351_regs_15to92_149to170[100][2] = {
{21, 0x80}, /* CLK5 Control: Not used ... clock powered down */
{22, 0x80}, /* CLK6 Control: Not used ... clock powered down */
{23, 0x80}, /* CLK7 Control: Not used ... clock powered down */
{24, 0x00}, /* Clock disable state 0..3 (low when disabled) */
{25, 0x00}, /* Clock disable state 4..7 (low when disabled) */
// PLL_A Setup (720MHz)
// P1: 0x00C66 = 3174
// P2: 0x00002 = 2
// P3: 0x00005 = 5
{26, 0x00}, // D7 - D0: MSNA_P3 [15:8]
{27, 0x05}, // D7 - D0: MSNA_P3 [7:0]
{28, 0x00}, // D1 - D0: MSNA_P1 [17:16]
{29, 0x0C}, // D7 - D0: MSNA_P1 [15:8]
{30, 0x66}, // D7 - D0: MSNA_P1 [7:0]
{31, 0x00}, // D7 - D4: MSNA_P3 [19:16], D3 - D0: MSNA_P2 [19:16]
{32, 0x00}, // D7 - D0: MSNA_P2 [15:8]
{33, 0x02}, // D7 - D0: MSNA_P2 [7:0]
{26, 0x00},
{27, 0x05},
{28, 0x00},
{29, 0x0C},
{30, 0x66},
{31, 0x00},
{32, 0x00},
{33, 0x02},
// PLL_B Setup (705MHz)
{34, 0x02},
{35, 0x71},
@ -261,89 +237,6 @@ static const uint8_t m_si5351_regs_15to92_149to170[100][2] = {
{64, 0x00},
{65, 0x00}};
static const uint8_t m_si5351_regs_custom[51][2] = {
// Init
{3, 0xFF},
{16, 0x4F}, /* CLK0 Control: 8mA drive, Multisynth 0 as CLK0 source, Clock
not inverted, Source = PLLA, Multisynth 0 in integer mode,
clock powered up */
{17, 0x4F}, /* CLK1 Control: 8mA drive, Multisynth 1 as CLK1 source, Clock
not inverted, Source = PLLA, Multisynth 1 in integer mode,
clock powered up */
{18, 0x6F}, /* CLK2 Control: 8mA drive, Multisynth 2 as CLK2 source, Clock
not inverted, Source = PLLB, Multisynth 2 in integer mode,
clock powered up */
{19, 0x80}, /* CLK3 Control: Not used ... clock powered down */
{20, 0x80}, /* CLK4 Control: Not used ... clock powered down */
{21, 0x80}, /* CLK5 Control: Not used ... clock powered down */
{22, 0x80}, /* CLK6 Control: Not used ... clock powered down */
{23, 0x80}, /* CLK7 Control: Not used ... clock powered down */
{24, 0x00}, /* Clock disable state 0..3 (low when disabled) */
{25, 0x00}, /* Clock disable state 4..7 (low when disabled) */
// PLL_A Setup (900MHz) (36 + 0/1)
// P1: 4096 => 0x01000
// P2: 0 => 0x00000
// P3: 1 => 0x00001
{26, 0x00}, // D7 - D0: MSNA_P3 [15:8]
{27, 0x01}, // D7 - D0: MSNA_P3 [7:0]
{28, 0x00}, // D1 - D0: MSNA_P1 [17:16]
{29, 0x10}, // D7 - D0: MSNA_P1 [15:8]
{30, 0x00}, // D7 - D0: MSNA_P1 [7:0]
{31, 0x00}, // D7 - D4: MSNA_P3 [19:16], D3 - D0: MSNA_P2 [19:16]
{32, 0x00}, // D7 - D0: MSNA_P2 [15:8]
{33, 0x00}, // D7 - D0: MSNA_P2 [7:0]
// PLL_B Setup (375MHz) (15 + 0/1)
/* // P1: 1408 => 0x00580 */
/* // P2: 0 => 0x00000 */
/* // P3: 1 => 0x00001 */
{34, 0x00}, // D7 - D0: MSNB_P3 [15:8] */
{35, 0x01}, // D7 - D0: MSNB_P3 [7:0] */
{36, 0x00}, // D1 - D0: MSNB_P1 [17:16] */
{37, 0x05}, // D7 - D0: MSNB_P1 [15:8] */
{38, 0x80}, // D7 - D0: MSNB_P1 [7:0] */
{39, 0x00}, // D7 - D4: MSNB_P3 [19:16], D3 - D0: MSNA_P2 [19:16] */
{40, 0x00}, // D7 - D0: MSNB_P2 [15:8] */
{41, 0x00}, // D7 - D0: MSNB_P2 [7:0] */
// Multisynth0 Setup (120MHz)
// P1: 1
// P2: 0
// P3: 1
{42, 0x00}, // D7 - D0: MS0_P3 [15:8]
{43, 0x01}, // D7 - D0: MS0_P3 [7:0]
{44, 0x00}, // D6 - D4: R0_DIV [2:0], D3 - D2: MS0_DIVBY4 [1:0], D1 -D0: MS0_P1 [17:16]
{45, 0x01}, // D7 - D0: MS0_P1 [15:8]
{46, 0x01}, // D7 - D0: MS0_P1 [7:0]
{47, 0x00}, // D7 - D4: MS0_P3 [19:16], D3 - D0: MS0_P2 [19:16]
{48, 0x00}, // D7 - D0: MS0_P2 [15:8]
{49, 0x00}, // D7 - D0: MS0_P2 [7:0]
// Multisynth1 Setup (12MHz)
{50, 0x00},
{51, 0x01},
{52, 0x00},
{53, 0x1C},
{54, 0x00},
{55, 0x00},
{56, 0x00},
{57, 0x00},
// Multisynth2 Setup (13.56MHz)
{58, 0x00},
{59, 0x01},
{60, 0x00},
{61, 0x18},
{62, 0x00},
{63, 0x00},
{64, 0x00},
{65, 0x00}};
static uint32_t ten_pow(const uint8_t exponent) {
uint32_t result = 1;
for (uint8_t i = 0; i < exponent; i++)
result *= 10;
return result;
}
static void spi_init(void) {
SPI_DDR |= (1 << SPI_SCK) | (1 << SPI_MOSI) | (1 << SPI_SS);
SPI_PORT |= (1 << SPI_SS);
@ -497,51 +390,6 @@ static void lcd_write_integer_page(const uint32_t integer,
}
}
static void lcd_write_selected_integer_page(const uint32_t integer,
const uint8_t digits,
const uint8_t page,
const bool invert) {
max_digits = digits;
if (digits != 0 || integer != 0) {
uint8_t input_digits = 0;
uint32_t comperator = 1;
// Get digits
for (; comperator <= integer; comperator *= 10, input_digits++);
lcd_write_kerning(1, invert);
// Print leading zeroes
for (int8_t i = digits - input_digits; i > 0; i--) {
if (input_digits + i - 1 != digit_select) {
lcd_write_kerning(1, invert);
lcd_write_digit_page(0, page, invert);
lcd_write_kerning(1, invert);
} else {
lcd_write_kerning(1, !invert);
lcd_write_digit_page(0, page, !invert);
lcd_write_kerning(1, !invert);
}
}
// Print number itself
for (; comperator >= 10; comperator /= 10, input_digits--) {
if (input_digits - 1 != digit_select) {
lcd_write_kerning(1, invert);
lcd_write_digit_page((integer % comperator) / (comperator / 10),
page, invert);
lcd_write_kerning(1, invert);
} else {
lcd_write_kerning(1, !invert);
lcd_write_digit_page((integer % comperator) / (comperator / 10),
page, !invert);
lcd_write_kerning(1, !invert);
}
}
}
}
static void twi_error(bool inverted) {
if (inverted)
lcd_fill(0xFF);
@ -660,8 +508,6 @@ static void draw_home(void) {
bool ch1_selected = false;
bool ch2_selected = false;
bool ch3_selected = false;
bool plla_selected = false;
bool pllb_selected = false;
bool setup_selected = false;
switch (home_state) {
@ -674,12 +520,6 @@ static void draw_home(void) {
case ch3:
ch3_selected = true;
break;
case plla:
plla_selected = true;
break;
case pllb:
pllb_selected = true;
break;
default: // setup
setup_selected = true;
break;
@ -698,144 +538,12 @@ static void draw_home(void) {
lcd_write_string_page("CH3\0", 2, i, ch3_selected);
lcd_write_kerning(2, ch3_selected);
lcd_move_cursor(0, 6 + i);
lcd_write_kerning(1, plla_selected);
lcd_write_string_page("PLL\0", 1, i, plla_selected);
lcd_write_string_page("A\0", 1, i, plla_selected);
lcd_write_kerning(2, plla_selected);
lcd_write_kerning(1, false);
lcd_write_kerning(1, pllb_selected);
lcd_write_string_page("PLL\0", 1, i, pllb_selected);
lcd_write_string_page("B\0", 1, i, pllb_selected);
lcd_write_kerning(2, pllb_selected);
lcd_move_cursor(61, 6 + i);
lcd_move_cursor(33, 6 + i);
lcd_write_string_page("SETUP\0", 2, i, setup_selected);
lcd_write_kerning(2, setup_selected);
}
}
static void draw_pll(void) {
lcd_fill(0x00);
volatile struct pll_config* pll_config = &plla_config;
switch (current_state) {
case plla:
pll_config = &plla_config;
break;
case pllb:
pll_config = &pllb_config;
break;
default:
break;
}
bool integer_selected = false;
bool numerator_selected = false;
bool denominator_selected = false;
bool back_selected = false;
bool change_integer_selected = false;
bool change_numerator_selected = false;
bool change_denominator_selected = false;
switch (pll_state) {
case integer:
integer_selected = true;
break;
case numerator:
numerator_selected = true;
break;
case denominator:
denominator_selected = true;
break;
case pll_back:
back_selected = true;
break;
case change_integer:
change_integer_selected = true;
break;
case change_numerator:
change_numerator_selected = true;
break;
case change_denominator:
change_denominator_selected = true;
break;
}
for (uint8_t i = 0; i < 2; i++) {
lcd_move_cursor(0, i);
lcd_write_kerning(33, true);
lcd_write_string_page("PLL\0", 2, i, true);
lcd_write_kerning(4, true);
switch (current_state) {
case plla:
lcd_write_string_page("A\0", 2, i, true);
break;
case pllb:
lcd_write_string_page("B\0", 2, i, true);
break;
default:
break;
}
lcd_write_kerning(35, true);
}
if (select_offset == 0)
for (uint8_t i = 0; i < 2; i++) {
lcd_move_cursor(0, 2 + i);
lcd_write_kerning(1, integer_selected);
lcd_write_string_page("INTEGER:\0", 1, i, integer_selected);
lcd_write_kerning(2, integer_selected);
lcd_write_kerning(7, false);
if (change_integer_selected)
lcd_write_selected_integer_page(pll_config->integer, 6,
i, false);
else
lcd_write_integer_page(pll_config->integer, 6, i, false);
lcd_write_kerning(2, false);
}
for (uint8_t i = 0; i < 2; i++) {
lcd_move_cursor(0, 4 + i - select_offset * 2);
lcd_write_kerning(1, numerator_selected);
lcd_write_string_page("NUM:\0", 1, i, numerator_selected);
lcd_write_kerning(2, numerator_selected);
lcd_write_kerning(21, false);
if (change_numerator_selected)
lcd_write_selected_integer_page(pll_config->numerator, 7,
i, false);
else
lcd_write_integer_page(pll_config->numerator, 7, i, false);
lcd_write_kerning(2, false);
}
for (uint8_t i = 0; i < 2; i++) {
lcd_move_cursor(0, 6 + i - select_offset * 2);
lcd_write_kerning(1, denominator_selected);
lcd_write_string_page("DENOM:\0", 1, i, denominator_selected);
lcd_write_kerning(2, denominator_selected);
lcd_write_kerning(8, false);
if (change_denominator_selected)
lcd_write_selected_integer_page(pll_config->denominator, 7,
i, false);
else
lcd_write_integer_page(pll_config->denominator, 7, i, false);
lcd_write_kerning(2, false);
}
if (select_offset == 1)
for (uint8_t i = 0; i < 2; i++) {
lcd_move_cursor(33, 6 + i);
lcd_write_string_page("BACK\0", 2, i, back_selected);
lcd_write_kerning(2, back_selected);
}
}
static void draw_setup(void) {
lcd_fill(0x00);
@ -900,8 +608,8 @@ static void draw_setup(void) {
static void change_state(const enum state new_state) {
switch (new_state) {
case home:
current_state = home;
draw_home();
current_state = home;
break;
case ch1:
break;
@ -909,22 +617,10 @@ static void change_state(const enum state new_state) {
break;
case ch3:
break;
case plla:
select_offset = 0;
pll_state = integer;
current_state = plla;
draw_pll();
break;
case pllb:
select_offset = 0;
pll_state = integer;
current_state = pllb;
draw_pll();
break;
case setup:
setup_state = contrast;
current_state = setup;
draw_setup();
current_state = setup;
break;
}
}
@ -951,171 +647,6 @@ static void update_home(const enum input event) {
}
}
static void update_pll(const enum input event) {
volatile struct pll_config* pll_config = &plla_config;
switch (current_state) {
case plla:
pll_config = &plla_config;
break;
case pllb:
pll_config = &pllb_config;
break;
default:
break;
}
switch (event) {
case cw:
switch (pll_state) {
case integer:
case numerator:
case denominator:
case pll_back:
pll_state++;
if (pll_state > denominator)
select_offset = 1;
if (pll_state > pll_back) {
select_offset = 0;
pll_state = integer;
}
break;
case change_integer:
if (digit_selected)
pll_config->integer += ten_pow(digit_select);
else
if (--digit_select > max_digits)
digit_select = max_digits - 1;
break;
case change_numerator:
if (digit_selected)
pll_config->numerator += ten_pow(digit_select);
else
if (--digit_select > max_digits)
digit_select = max_digits - 1;
break;
case change_denominator:
if (digit_selected)
pll_config->denominator += ten_pow(digit_select);
else
if (--digit_select > max_digits)
digit_select = max_digits - 1;
break;
}
draw_pll();
break;
case ccw:
switch (pll_state) {
case integer:
case numerator:
case denominator:
case pll_back:
pll_state--;
if (pll_state < numerator)
select_offset = 0;
if (pll_state > pll_back) {
select_offset = 1;
pll_state = pll_back;
}
break;
case change_integer:
// TODO: Fix going back to zero
if (digit_selected)
pll_config->integer -= ten_pow(digit_select);
else
if (++digit_select >= max_digits)
digit_select = 0;
break;
case change_numerator:
// TODO: Fix going back to zero
if (digit_selected)
pll_config->numerator -= ten_pow(digit_select);
else
if (++digit_select >= max_digits)
digit_select = 0;
break;
case change_denominator:
// TODO: Fix going back to zero
if (digit_selected)
pll_config->denominator -= ten_pow(digit_select);
else
if (++digit_select >= max_digits)
digit_select = 0;
break;
}
draw_pll();
break;
case click:
switch (pll_state) {
case integer:
pll_state = change_integer;
draw_pll();
break;
case numerator:
pll_state = change_numerator;
draw_pll();
break;
case denominator:
pll_state = change_denominator;
draw_pll();
break;
case pll_back:
change_state(home);
break;
case change_integer:
if (digit_selected) {
// TODO: Save/write new value
digit_selected = false;
digit_select = 0;
} else
digit_selected = true;
break;
case change_numerator:
if (digit_selected) {
// TODO: Save/write new value
digit_selected = false;
digit_select = 0;
} else
digit_selected = true;
break;
case change_denominator:
if (digit_selected) {
// TODO: Save/write new value
digit_selected = false;
digit_select = 0;
} else
digit_selected = true;
break;
}
break;
case hold:
switch (pll_state) {
case integer:
case numerator:
case denominator:
case pll_back:
change_state(home);
break;
case change_integer:
digit_selected = false;
pll_state = integer;
draw_pll();
break;
case change_numerator:
digit_selected = false;
pll_state = integer;
draw_pll();
break;
case change_denominator:
digit_selected = false;
pll_state = integer;
draw_pll();
break;
}
break;
}
}
static void update_setup(const enum input event) {
switch (event) {
case cw:
@ -1226,12 +757,6 @@ static void update_state(const enum input event) {
break;
case ch3:
break;
case plla:
update_pll(event);
break;
case pllb:
update_pll(event);
break;
case setup:
update_setup(event);
break;
@ -1353,9 +878,9 @@ int main(void) {
(void) &twi_read_register;
(void) &twi_write_register;
for (uint16_t i = 0; i < sizeof(m_si5351_regs_custom) / 2; i++)
twi_write_register(SI5351_ADDRESS, m_si5351_regs_custom[i][0],
m_si5351_regs_custom[i][1]);
for (uint16_t i = 0; i < sizeof(m_si5351_regs_15to92_149to170) / 2; i++)
twi_write_register(SI5351_ADDRESS, m_si5351_regs_15to92_149to170[i][0],
m_si5351_regs_15to92_149to170[i][1]);
twi_write_register(SI5351_ADDRESS, SI5351_REGISTER_177_PLL_RESET, 0xAC);
twi_write_register(SI5351_ADDRESS, SI5351_REGISTER_3_OUTPUT_ENABLE_CONTROL, 0x00);