kopia lustrzana https://github.com/bristol-seds/pico-tracker
[Refactor] Now uses si_trx for the radio
Richard Eoin Meadows
rodzic
afabff5734
commit
41717efce2
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@ -25,7 +25,9 @@
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#ifndef SI_TRX_H
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#define SI_TRX_H
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void si_trx_reset(void);
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void si_trx_on(void);
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void si_trx_off(void);
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void si_trx_init(void);
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void spi_loopback_test(void);
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@ -170,6 +170,14 @@ enum {
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SI_PROPERTY_GROUP_SYNTH = 0x23,
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SI_PROPERTY_GROUP_FREQ_CONTROL = 0x40,
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};
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/**
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* Si Interrupt Control Properties
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*/
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enum {
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SI_INT_CTL_ENABLE = 0x00,
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SI_INT_CTL_PH_ENABLE = 0x01,
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SI_INT_CTL_CHIP_ENABLE = 0x02,
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};
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/**
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* Si Global Properties
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*/
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@ -38,11 +38,9 @@
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#include "system/wdt.h"
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#include "timepulse.h"
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#include "telemetry.h"
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#include "si_trx.h"
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#include "si_trx_defs.h"
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#include "analogue.h"
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#include "si4060.h"
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#include "spi_bitbang.h"
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#include "rtty.h"
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#include "system/interrupt.h"
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@ -332,7 +330,7 @@ int main(void)
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system_set_sleepmode(SYSTEM_SLEEPMODE_IDLE_2); /* Disable CPU, AHB and APB */
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/* Configure the Power Manager */
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powermananger_init();
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//powermananger_init();
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/* Timer 0 for 50Hz triggering */
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timer0_tick_init(50);
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@ -343,40 +341,23 @@ int main(void)
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*/
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/* Set the wdt here. We should get to the first reset in one min */
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wdt_init();
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wdt_reset_count();
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//wdt_init();
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//wdt_reset_count();
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led_init();
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gps_init();
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/* Initialise Si4060 */
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// si_trx_init();
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si_trx_init();
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si4060_hw_init();
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si4060_gpio_init();
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si4060_reset();
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/* check radio communication */
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int i = si4060_part_info();
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if (i != 0x4063) {
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while(1);
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}
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// si_trx_ptt_on();
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si4060_power_up();
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si4060_setup(MOD_TYPE_2FSK);
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si4060_gpio_init();
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si4060_start_tx(0);
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//si_trx_state_tx();
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/* Start transmitting */
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si_trx_on();
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led_on();
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while (1) {
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/* Watchdog */
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wdt_reset_count();
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//wdt_reset_count();
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/* Send the next packet */
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output_telemetry_string();
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@ -62,10 +62,10 @@ void _si_trx_transfer(int tx_count, int rx_count, uint8_t *data)
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* procedure.
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*/
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for (int i = 0; i < 20000; i++); // 20µS
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_si_trx_cs_enable();
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do {
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for (int i = 0; i < 200; i++); /* Approx. 20µS */
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_si_trx_cs_enable();
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/* Issue READ_CMD_BUFF */
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spi_bitbang_transfer(SI_CMD_READ_CMD_BUFF);
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response = spi_bitbang_transfer(0xFF);
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@ -75,8 +75,6 @@ void _si_trx_transfer(int tx_count, int rx_count, uint8_t *data)
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/* Otherwise repeat the procedure */
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_si_trx_cs_disable();
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for (int i = 0; i < 200; i++); // 20µS
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_si_trx_cs_enable();
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} while (1); /* TODO: Timeout? */
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@ -112,7 +110,7 @@ static void si_trx_power_up(uint8_t clock_source, uint32_t xo_freq)
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buffer[5] = (xo_freq >> 8);
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buffer[6] = (xo_freq);
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_si_trx_transfer(7, 0, buffer + 1);
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_si_trx_transfer(7, 0, buffer);
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}
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/**
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* Gets the 16 bit part number
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@ -127,12 +125,30 @@ static uint16_t si_trx_get_part_info(void)
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return (buffer[1] << 8) | buffer[2];
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}
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/**
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* Clears pending interrupts. Set the corresponding bit low to clear
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* the interrupt.
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*/
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static void si_trx_clear_pending_interrupts(uint8_t packet_handler_clear_pending,
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uint8_t chip_clear_pending)
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{
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uint8_t buffer[4];
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buffer[0] = SI_CMD_GET_INT_STATUS;
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buffer[1] = packet_handler_clear_pending & ((1<<5)|(1<<1)); /* Mask used bits */
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buffer[2] = 0;
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buffer[3] = chip_clear_pending;
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_si_trx_transfer(4, 0, buffer);
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/* This command returns the interrupts status, but we don't use it */
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}
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/**
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* Sets the GPIO configuration for each pin
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*/
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static void si_trx_gpio_configuration(si_gpio_t gpio0, si_gpio_t gpio1,
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si_gpio_t gpio2, si_gpio_t gpio3,
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uint8_t drive_strength)
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si_gpio_t gpio2, si_gpio_t gpio3,
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uint8_t drive_strength)
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{
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uint8_t buffer[8];
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buffer[0] = SI_CMD_GPIO_PIN_CFG;
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@ -158,6 +174,16 @@ static void si_trx_frequency_control_set_divider(uint8_t integer_divider,
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SI_FREQ_CONTROL_INTE,
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divider);
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}
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/**
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* Sets the step size between adjacent channels, in units of the
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* resolution of the frac-n pll synthesiser.
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*/
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static void si_trx_frequency_control_set_channel_step_size(uint16_t step_size)
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{
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_si_trx_set_property_16(SI_PROPERTY_GROUP_FREQ_CONTROL,
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SI_FREQ_CONTROL_CHANNEL_STEP_SIZE,
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step_size);
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}
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/**
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* Sets the output divider of the frac-n pll synthesiser
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*/
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@ -260,59 +286,32 @@ static void si_trx_set_frequency(uint32_t frequency)
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*/
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void si_trx_reset(void)
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{
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_si_trx_sdn_enable(); // active high shutdown = reset
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_si_trx_sdn_enable(); /* active high shutdown = reset */
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for (int i = 0; i < 15*10000; i++); // 15ms
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_si_trx_sdn_disable(); // booting
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for (int i = 0; i < 15*10000; i++); // 15ms
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for (int i = 0; i < 15*10000; i++); /* Approx. 15ms */
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_si_trx_sdn_disable(); /* booting */
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for (int i = 0; i < 15*10000; i++); /* Approx. 15ms */
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//const uint8_t PART_INFO_command[] = {0x01}; // Part Info
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//_si_trx_transfer(1, 9, PART_INFO_command);
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uint16_t part_number = si_trx_get_part_info();
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/* Power Up */
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si_trx_power_up(SI_POWER_UP_TCXO, VCXO_FREQUENCY);
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/* no patch, boot main app. img, FREQ_VCXO, return 1 byte */
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//const uint8_t init_command[] = {0x02, 0x01, 0x01, x3, x2, x1, x0};
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//_si_trx_transfer(7, 1 , init_command);
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// Clear all pending interrupts and get the interrupt status back
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const uint8_t get_int_status_command[] = {0x20, 0x00, 0x00, 0x00};
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_si_trx_transfer(4, 9, get_int_status_command);
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// cliPrint("Radio ready\n");
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const uint8_t set_int_ctrl_enable[] = {0x11, 0x01, 0x01, 0x00, 0x00};
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_si_trx_transfer(5, 1, set_int_ctrl_enable);
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// cliPrint("Setting no Interrupts (see WDS)\n");
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/* Clear pending interrupts */
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si_trx_clear_pending_interrupts(0, 0);
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/* Disable all interrupts */
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_si_trx_set_property_8(SI_PROPERTY_GROUP_INT_CTL, SI_INT_CTL_ENABLE, 0);
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// TODO Lower drive dtrength
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/* Configure GPIOs */
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si_trx_gpio_configuration(SI_GPIO_PIN_CFG_GPIO_MODE_INPUT,
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SI_GPIO_PIN_CFG_GPIO_MODE_INPUT | SI_GPIO_PIN_CFG_PULL_ENABLE,
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SI_GPIO_PIN_CFG_GPIO_MODE_INPUT,
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SI_GPIO_PIN_CFG_GPIO_MODE_INPUT | SI_GPIO_PIN_CFG_PULL_ENABLE,
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SI_GPIO_PIN_CFG_DRV_STRENGTH_HIGH);
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//const uint8_t set_global_config1[] = {0x11, 0x00, 0x01, 0x03, 0x60};
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//_si_trx_transfer(5, 1, set_global_config1);
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// Sequencer Mode = Fast, Fifo = Half Duplex
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// cliPrint("Setting special global Config 1 changes (see WDS)\n");
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// const uint8_t set_global_xo_tune_command[] = {0x11, 0x00, 0x01, 0x00, 0x00};
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//_si_trx_transfer(5, 1, set_global_xo_tune_command);
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// cliPrint("Setting no additional capacitance on VXCO\n");
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si_trx_set_frequency(RADIO_FREQUENCY);
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si_trx_set_tx_power(RADIO_POWER);
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@ -325,20 +324,25 @@ void si_trx_reset(void)
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si_trx_state_tx_tune();
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}
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void si_trx_ptt_on(void)
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/**
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* Enables the radio and starts transmitting
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*/
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void si_trx_on(void)
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{
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si_trx_reset();
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si_trx_state_tx();
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}
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void si_trx_ptt_off(void)
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/**
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* Disables the radio and places it in shutdown
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*/
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void si_trx_off(void)
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{
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si_trx_state_ready();
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_si_trx_sdn_enable();
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}
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/**
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* Initialises the radio hardware
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* Initialises the radio interface to the radio
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*/
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void si_trx_init(void)
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{
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@ -379,14 +383,6 @@ void si_trx_init(void)
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spi_bitbang_init(SI406X_SERCOM_MOSI_PIN,
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SI406X_SERCOM_MISO_PIN,
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SI406X_SERCOM_SCK_PIN);
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/* Boot */
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for (int i = 0; i < 15*10000; i++); // 15ms
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_si_trx_sdn_disable();
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for (int i = 0; i < 15*10000; i++); // 15ms
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const uint8_t PART_INFO_command[] = {0x01}; // Part Info
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_si_trx_transfer(1, 9, PART_INFO_command);
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}
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