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Linduino
1.3.0
Linear Technology Arduino-Compatible Demonstration Board
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Library for LTC6951: Ultra-Low Jitter 2MHz to 2.7GHz Multi-Output Clock Synthesizer with Integrated VCO. More...
Library for LTC6951: Ultra-Low Jitter 2MHz to 2.7GHz Multi-Output Clock Synthesizer with Integrated VCO.
Definition in file LTC6951.cpp.
Go to the source code of this file.
Functions | |
uint8_t | LTC6951_read (uint8_t cs, int8_t address) |
LTC6951 Read Single Address reads 8 bit Data field to LTC6951. More... | |
long | LTC6951_read_field (uint8_t cs, uint8_t address, uint8_t MSB_loc, uint8_t numbits) |
LTC6951 Read Single Field For SPI FIELDS located in 1 or multiple address location reads specific address locations identifies and returns specific field in question can handle SPI fields in multiple addresses, if MSB bit is in the lower number address. More... | |
long | get_LTC6951_SPI_FIELD (uint8_t cs, uint8_t f) |
Gets the LTC6951 SPI field value calls function LTC6951_read_field, which reads specific address locations identifies and returns specific field in question can handle SPI fields in multiple addresses, if MSB bit is in the lower number address. More... | |
void | LTC6951_write (uint8_t cs, uint8_t address, uint8_t Data) |
LTC6951 Write Single Address writes 8 bit Data field to LTC6951. More... | |
uint8_t | LTC6951_write_field (uint8_t cs, long field_data, uint8_t address, uint8_t MSB_loc, uint8_t numbits) |
LTC6951 Write Single Field For SPI FIELDS in 1 or multiple address locations reads specific address/field location then writes to specific field can handle SPI fields in multiple addresses, if MSB bit is in the lower number address. More... | |
uint8_t | get_LTC6951_REGSIZE () |
returns # of addresses in parts register map (array size) More... | |
uint8_t | get_LTC6951_SPI_FIELD_NUMBITS (uint8_t f) |
returns the number of bits for a given field name in the SPI map More... | |
uint8_t | get_LTC6951_SPI_FIELD_RW (uint8_t f) |
returns if the given field name is (0)read/write or (1)read_only field More... | |
void | set_LTC6951_SPI_FIELD (uint8_t cs, uint8_t f, long field_data) |
Sets the LTC6951 SPI field value calls function LTC6951_read_field, which reads specific address/field location then writes to specific field can handle SPI fields in multiple addresses, if MSB bit is in the lower number address. More... | |
void | set_LTC6951_ALLREGS (uint8_t cs, uint8_t reg01, uint8_t reg02, uint8_t reg03, uint8_t reg04, uint8_t reg05, uint8_t reg06, uint8_t reg07, uint8_t reg08, uint8_t reg09, uint8_t reg0A, uint8_t reg0B, uint8_t reg0C, uint8_t reg0D, uint8_t reg0E, uint8_t reg0F, uint8_t reg10, uint8_t reg11, uint8_t reg12) |
Writes values to ALL LTC6951 RW addresses. More... | |
void | set_LTC6951_REGS_lkup_tbl (uint8_t lkup_tbl_row) |
Writes values to ALL LTC6951 RW addresses from a look-up table. More... | |
void | set_LTC6951_REGS_freq_jump (uint8_t lkup_tbl_row, uint8_t init_setup) |
This function toggles between two frequencies. More... | |
void | LTC6951_init () |
Initializes the SPI MAP arrays The values set in initialization are used for all the LTC6951 SPI/WRITE and read functions (set_LTC6951_SPI_FIELD, get_LTC6951_SPI_FIELD, LTC6951_read, LTC6951_write, etc, etc) More... | |
int8_t | discover_demo_board_local (char *demo_name) |
Read the ID string from the EEPROM and determine if any demo board is connected. More... | |
Variables | |
uint8_t | LTC6951_reg [LTC6951_NUM_REGADDR] |
number of LTC6951 spi addresses More... | |
uint8_t | LTC6951_spi_map [(LTC6951_NUM_REGFIELD+1)][4] |
LTC6951 spi map, stores MSB address location, MSB bit location, field length in bits, and R or RW capability. More... | |
uint8_t | LTC6951_lkup_tbl [10][LTC6951_NUM_REGADDR] |
the following settings assume a 100MHz reference input More... | |
int8_t discover_demo_board_local | ( | char * | demo_name | ) |
Read the ID string from the EEPROM and determine if any demo board is connected.
Returns 1 if successful, 0 if not successful
Definition at line 831 of file LTC6951.cpp.
uint8_t get_LTC6951_REGSIZE | ( | ) |
returns # of addresses in parts register map (array size)
Definition at line 242 of file LTC6951.cpp.
long get_LTC6951_SPI_FIELD | ( | uint8_t | cs, |
uint8_t | f | ||
) |
Gets the LTC6951 SPI field value calls function LTC6951_read_field, which reads specific address locations identifies and returns specific field in question can handle SPI fields in multiple addresses, if MSB bit is in the lower number address.
cs | Chip Select Pin |
f | SPI field number |
Definition at line 164 of file LTC6951.cpp.
uint8_t get_LTC6951_SPI_FIELD_NUMBITS | ( | uint8_t | f | ) |
returns the number of bits for a given field name in the SPI map
f | SPI field number |
Definition at line 252 of file LTC6951.cpp.
uint8_t get_LTC6951_SPI_FIELD_RW | ( | uint8_t | f | ) |
returns if the given field name is (0)read/write or (1)read_only field
f | SPI field number |
Definition at line 262 of file LTC6951.cpp.
void LTC6951_init | ( | ) |
Initializes the SPI MAP arrays The values set in initialization are used for all the LTC6951 SPI/WRITE and read functions (set_LTC6951_SPI_FIELD, get_LTC6951_SPI_FIELD, LTC6951_read, LTC6951_write, etc, etc)
Definition at line 535 of file LTC6951.cpp.
uint8_t LTC6951_read | ( | uint8_t | cs, |
int8_t | address | ||
) |
LTC6951 Read Single Address reads 8 bit Data field to LTC6951.
has to shift data by one bit to account for RW bit
cs | Chip Select Pin |
address | Register address for the LTC6951. |
Definition at line 108 of file LTC6951.cpp.
long LTC6951_read_field | ( | uint8_t | cs, |
uint8_t | address, | ||
uint8_t | MSB_loc, | ||
uint8_t | numbits | ||
) |
LTC6951 Read Single Field For SPI FIELDS located in 1 or multiple address location reads specific address locations identifies and returns specific field in question can handle SPI fields in multiple addresses, if MSB bit is in the lower number address.
cs | Chip Select Pin |
address | Register address for the LTC6951. |
MSB_loc | MSB bit location of field |
numbits | length of field (i.e. number of bits in field) |
Definition at line 128 of file LTC6951.cpp.
void LTC6951_write | ( | uint8_t | cs, |
uint8_t | address, | ||
uint8_t | Data | ||
) |
LTC6951 Write Single Address writes 8 bit Data field to LTC6951.
has to shift data by one bit to account for RW bit
cs | Chip Select Pin |
address | Register address for the LTC6951. |
Data | 8-bit data to be written to register |
Definition at line 175 of file LTC6951.cpp.
uint8_t LTC6951_write_field | ( | uint8_t | cs, |
long | field_data, | ||
uint8_t | address, | ||
uint8_t | MSB_loc, | ||
uint8_t | numbits | ||
) |
LTC6951 Write Single Field For SPI FIELDS in 1 or multiple address locations reads specific address/field location then writes to specific field can handle SPI fields in multiple addresses, if MSB bit is in the lower number address.
cs | Chip Select Pin |
field_data | Value field value to be set to |
address | Register address for the LTC6951. |
MSB_loc | MSB bit location of field |
numbits | length of field (i.e. number of bits in field) |
Definition at line 191 of file LTC6951.cpp.
void set_LTC6951_ALLREGS | ( | uint8_t | cs, |
uint8_t | reg01, | ||
uint8_t | reg02, | ||
uint8_t | reg03, | ||
uint8_t | reg04, | ||
uint8_t | reg05, | ||
uint8_t | reg06, | ||
uint8_t | reg07, | ||
uint8_t | reg08, | ||
uint8_t | reg09, | ||
uint8_t | reg0A, | ||
uint8_t | reg0B, | ||
uint8_t | reg0C, | ||
uint8_t | reg0D, | ||
uint8_t | reg0E, | ||
uint8_t | reg0F, | ||
uint8_t | reg10, | ||
uint8_t | reg11, | ||
uint8_t | reg12 | ||
) |
Writes values to ALL LTC6951 RW addresses.
cs | Chip Select Pin |
reg01 | LTC6951 register 1 |
reg02 | LTC6951 register 2 |
reg03 | LTC6951 register 3 |
reg04 | LTC6951 register 4 |
reg05 | LTC6951 register 5 |
reg06 | LTC6951 register 6 |
reg07 | LTC6951 register 7 |
reg08 | LTC6951 register 8 |
reg09 | LTC6951 register 9 |
reg0A | LTC6951 register 10 |
reg0B | LTC6951 register 11 |
reg0C | LTC6951 register 12 |
reg0D | LTC6951 register 13 |
reg0E | LTC6951 register 14 |
reg0F | LTC6951 register 15 |
reg10 | LTC6951 register 16 |
reg11 | LTC6951 register 17 |
reg12 | LTC6951 register 18 |
Definition at line 285 of file LTC6951.cpp.
void set_LTC6951_REGS_freq_jump | ( | uint8_t | lkup_tbl_row, |
uint8_t | init_setup | ||
) |
This function toggles between two frequencies.
lkup_tbl_row | Can be 0 or 1 |
init_setup | 0 = not first setup, 1= first setup |
Definition at line 430 of file LTC6951.cpp.
void set_LTC6951_REGS_lkup_tbl | ( | uint8_t | lkup_tbl_row | ) |
Writes values to ALL LTC6951 RW addresses from a look-up table.
lkup_tbl_row | Any number 0-9, lookup table has 10 options |
Definition at line 322 of file LTC6951.cpp.
void set_LTC6951_SPI_FIELD | ( | uint8_t | cs, |
uint8_t | f, | ||
long | field_data | ||
) |
Sets the LTC6951 SPI field value calls function LTC6951_read_field, which reads specific address/field location then writes to specific field can handle SPI fields in multiple addresses, if MSB bit is in the lower number address.
cs | Chip Select Pin |
f | SPI field number |
field_data | Value field value to be set to |
Definition at line 275 of file LTC6951.cpp.
uint8_t LTC6951_lkup_tbl[10][LTC6951_NUM_REGADDR] |
the following settings assume a 100MHz reference input
LTC6951 Configuration look-up table
Definition at line 88 of file LTC6951.cpp.
uint8_t LTC6951_reg[LTC6951_NUM_REGADDR] |
number of LTC6951 spi addresses
Definition at line 85 of file LTC6951.cpp.
uint8_t LTC6951_spi_map[(LTC6951_NUM_REGFIELD+1)][4] |
LTC6951 spi map, stores MSB address location, MSB bit location, field length in bits, and R or RW capability.
Definition at line 86 of file LTC6951.cpp.