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-rw-r--r--src/fsm/audio.c11
-rw-r--r--src/fsm/common.c12
-rw-r--r--src/fsm/common.h6
-rw-r--r--src/fsm/gps.c115
-rw-r--r--src/fsm/gps.h14
-rw-r--r--src/fsm/i2c.c189
-rw-r--r--src/fsm/i2c.h19
-rw-r--r--src/fsm/main.c107
-rw-r--r--src/fsm/ubx.h17
9 files changed, 396 insertions, 94 deletions
diff --git a/src/fsm/audio.c b/src/fsm/audio.c
index 02123fd..e74e93a 100644
--- a/src/fsm/audio.c
+++ b/src/fsm/audio.c
@@ -28,14 +28,11 @@ void InitializeAudio(int plln, int pllr, int i2sdiv, int i2sodd) {
DMARunning = false;
// Turn on peripherals.
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
+ // Assume GPIOA,B,C,D already on
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
- i2c_init();
+ // Assume I2C is set up
// Configure reset pin.
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;;
@@ -229,9 +226,13 @@ void DMA1_Stream7_IRQHandler() {
}
}
+// Warning: don't i2c_write call from IRQ handler !
static void WriteRegister(uint8_t address, uint8_t value)
{
const uint8_t device = 0x4a;
const uint8_t data[2] = {address, value};
+ i2c_transaction_start();
i2c_write(device, data, 2);
+ i2c_transaction_end();
}
+
diff --git a/src/fsm/common.c b/src/fsm/common.c
index 6e00740..ca4c009 100644
--- a/src/fsm/common.c
+++ b/src/fsm/common.c
@@ -25,6 +25,7 @@
#include "common.h"
#include "FreeRTOS.h"
#include "timers.h"
+#include <stm32f4xx.h>
static uint64_t common_timestamp = 0; // milliseconds since startup
static TimerHandle_t common_timer;
@@ -71,4 +72,15 @@ int random_bool(void)
return bit;
}
+// For the debugger
+static int faultsource = 0;
+void trigger_fault(int source)
+{
+ __disable_irq();
+
+ faultsource = source;
+
+ while (1) {}
+}
+
diff --git a/src/fsm/common.h b/src/fsm/common.h
index 1bd3b96..53da672 100644
--- a/src/fsm/common.h
+++ b/src/fsm/common.h
@@ -40,5 +40,11 @@ uint64_t timestamp_now(void);
// Return either 0 or 1, somewhat randomly
int random_bool(void);
+// Fault handling mechanism
+#define FAULT_SOURCE_MAIN 1
+#define FAULT_SOURCE_GPS 2
+#define FAULT_SOURCE_I2C 3
+void trigger_fault(int source);
+
#endif // _COMMON_H_
diff --git a/src/fsm/gps.c b/src/fsm/gps.c
index fdb93f2..fe3e98a 100644
--- a/src/fsm/gps.c
+++ b/src/fsm/gps.c
@@ -22,26 +22,60 @@
* SOFTWARE.
*/
-#include "gps.h"
-#include "i2c.h"
-#include "string.h"
#include "stm32f4xx_conf.h"
#include "stm32f4xx.h"
#include "FreeRTOS.h"
+#include "FreeRTOSConfig.h"
#include "task.h"
+#include "semphr.h"
+#include "common.h"
+#include "gps.h"
+#include "i2c.h"
+#include "ubx.h"
+
-static ubx_nav_timeutc_t gps_timeutc;
+static struct gps_time_s gps_timeutc;
+static int gps_fix_3d;
static void gps_task(void *pvParameters);
// Callback functions for UBX parser
-static void gps_nav_sol(ubx_nav_sol_t *sol) {}
+static void gps_nav_sol(ubx_nav_sol_t *sol)
+{
+ gps_fix_3d = (sol->GPSfix == GPSFIX_3D) ? 1 : 0;
+}
+
static void gps_tim_tm2(ubx_tim_tm2_t *posllh) {}
+
+SemaphoreHandle_t timeutc_semaphore;
static void gps_nav_timeutc(ubx_nav_timeutc_t *timeutc)
{
- memcpy(&gps_timeutc, timeutc, sizeof(ubx_nav_timeutc_t));
+ xSemaphoreTake(timeutc_semaphore, portMAX_DELAY);
+ gps_timeutc.year = timeutc->year;
+ gps_timeutc.month = timeutc->month;
+ gps_timeutc.day = timeutc->day;
+ gps_timeutc.hour = timeutc->hour;
+ gps_timeutc.min = timeutc->min;
+ gps_timeutc.sec = timeutc->sec;
+ gps_timeutc.valid = timeutc->valid;
+ xSemaphoreGive(timeutc_semaphore);
}
+// Get current time from GPS
+void gps_utctime(struct gps_time_s *timeutc)
+{
+ xSemaphoreTake(timeutc_semaphore, portMAX_DELAY);
+ timeutc->year = gps_timeutc.year;
+ timeutc->month = gps_timeutc.month;
+ timeutc->day = gps_timeutc.day;
+ timeutc->hour = gps_timeutc.hour;
+ timeutc->min = gps_timeutc.min;
+ timeutc->sec = gps_timeutc.sec;
+ timeutc->valid = gps_timeutc.valid;
+ xSemaphoreGive(timeutc_semaphore);
+}
+
+
const ubx_callbacks_t gps_ubx_cb = {
gps_nav_sol,
gps_nav_timeutc,
@@ -49,26 +83,74 @@ const ubx_callbacks_t gps_ubx_cb = {
};
-#define RXBUF_LEN 32
+#define RXBUF_LEN 128
static uint8_t rxbuf[RXBUF_LEN];
+static uint8_t gps_init_messages[] = {
+ UBX_ENABLE_NAV_SOL,
+ UBX_ENABLE_NAV_TIMEUTC,
+ UBX_ENABLE_TIM_TM2 };
static void gps_task(void *pvParameters)
{
+ const uint8_t address = 0xFD;
+ int must_init_gps = 1;
+
while (1) {
- const uint8_t address = 0xFF;
- int bytes_read = i2c_read(GPS_I2C_ADDR, address, rxbuf, RXBUF_LEN);
+ taskYIELD();
+
+ i2c_transaction_start();
+
+ if (must_init_gps) {
+ i2c_write(GPS_I2C_ADDR,
+ gps_init_messages,
+ sizeof(gps_init_messages));
+
+ must_init_gps = 0;
+ }
+
+ int bytes_read = i2c_read_from(GPS_I2C_ADDR, address, rxbuf, 2);
- for (int i = 0; i < bytes_read; i++) {
- ubx_parse(rxbuf[i]);
+ if (bytes_read != 2) {
+ i2c_transaction_end();
+ continue;
+ }
+
+ uint16_t bytes_available = (rxbuf[0] << 8) | rxbuf[1];
+
+ if (bytes_available) {
+ if (bytes_available > RXBUF_LEN) {
+ bytes_available = RXBUF_LEN;
+ }
+
+ bytes_read = i2c_read(GPS_I2C_ADDR, rxbuf, bytes_available);
+ i2c_transaction_end();
+
+ for (int i = 0; i < bytes_read; i++) {
+ ubx_parse(rxbuf[i]);
+ }
+ }
+ else {
+ i2c_transaction_end();
}
}
}
void gps_init()
{
- i2c_init();
+ gps_fix_3d = 0;
+ gps_timeutc.valid = 0;
+
ubx_register(&gps_ubx_cb);
+ timeutc_semaphore = xSemaphoreCreateBinary();
+
+ if( timeutc_semaphore == NULL ) {
+ trigger_fault(FAULT_SOURCE_GPS);
+ }
+ else {
+ xSemaphoreGive(timeutc_semaphore);
+ }
+
xTaskCreate(
gps_task,
"TaskGPS",
@@ -81,13 +163,6 @@ void gps_init()
// Return 1 of the GPS is receiving time
int gps_locked()
{
- return 0;
-}
-
-// Get current time from GPS
-ubx_nav_timeutc_t* gps_utctime()
-{
-
- return &gps_timeutc;
+ return gps_fix_3d;
}
diff --git a/src/fsm/gps.h b/src/fsm/gps.h
index e54524b..82f8a77 100644
--- a/src/fsm/gps.h
+++ b/src/fsm/gps.h
@@ -22,6 +22,8 @@
* SOFTWARE.
*/
+#include <stdint.h>
+
#ifndef __GPS_H_
#define __GPS_H_
@@ -34,7 +36,15 @@
#define GPS_I2C_ADDR 0x42 // I2C address of GPS receiver
-#include "ubx.h"
+struct gps_time_s {
+ uint16_t year; // Year, range 1999..2099 (UTC)
+ uint8_t month; // Month, range 1..12 (UTC)
+ uint8_t day; // Day of Month, range 1..31 (UTC)
+ uint8_t hour; // Hour of Day, range 0..23 (UTC)
+ uint8_t min; // Minute of Hour, range 0..59 (UTC)
+ uint8_t sec; // Seconds of Minute, range 0..59 (UTC)
+ uint8_t valid; // validity flag
+};
// Setup communication and GPS receiver
void gps_init();
@@ -43,7 +53,7 @@ void gps_init();
int gps_locked();
// Get current time from GPS
-ubx_nav_timeutc_t* gps_utctime();
+void gps_utctime(struct gps_time_s *timeutc);
#endif // __GPS_H_
diff --git a/src/fsm/i2c.c b/src/fsm/i2c.c
index da109fc..8215ec7 100644
--- a/src/fsm/i2c.c
+++ b/src/fsm/i2c.c
@@ -23,20 +23,56 @@
*/
#include "i2c.h"
+#include "common.h"
#include "stm32f4xx_conf.h"
#include "stm32f4xx_i2c.h"
#include "stm32f4xx.h"
+#include "FreeRTOS.h"
+#include "FreeRTOSConfig.h"
+#include "task.h"
+#include "semphr.h"
static int i2c_init_done = 0;
+static int i2c_error = 0;
static I2C_TypeDef* const I2Cx = I2C1;
+static SemaphoreHandle_t i2c_semaphore;
+
+static void i2c_device_init(void)
+{
+ // configure I2C1
+ I2C_InitTypeDef I2C_InitStruct;
+ I2C_InitStruct.I2C_ClockSpeed = 100000; //Hz
+ I2C_InitStruct.I2C_Mode = I2C_Mode_I2C;
+ I2C_InitStruct.I2C_DutyCycle = I2C_DutyCycle_2; // 50% duty cycle
+ I2C_InitStruct.I2C_OwnAddress1 = 0x00; // not relevant in master mode
+
+ // disable acknowledge when reading (can be changed later on)
+ I2C_InitStruct.I2C_Ack = I2C_Ack_Disable;
+
+ I2C_InitStruct.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
+ I2C_Init(I2C1, &I2C_InitStruct);
+
+ // enable I2C1
+ I2C_Cmd(I2C1, ENABLE);
+}
+
void i2c_init()
{
if (i2c_init_done == 1) {
return;
}
+ i2c_semaphore = xSemaphoreCreateBinary();
+
+ if ( i2c_semaphore == NULL ) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+ else {
+ xSemaphoreGive(i2c_semaphore);
+ }
+
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
@@ -56,32 +92,17 @@ void i2c_init()
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
- // configure I2C1
- I2C_InitTypeDef I2C_InitStruct;
- I2C_InitStruct.I2C_ClockSpeed = 100000; //Hz
- I2C_InitStruct.I2C_Mode = I2C_Mode_I2C;
- I2C_InitStruct.I2C_DutyCycle = I2C_DutyCycle_2; // 50% duty cycle
- I2C_InitStruct.I2C_OwnAddress1 = 0x00; // not relevant in master mode
-
- // disable acknowledge when reading (can be changed later on)
- I2C_InitStruct.I2C_Ack = I2C_Ack_Disable;
-
- I2C_InitStruct.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
- I2C_Init(I2C1, &I2C_InitStruct);
-
- // enable I2C1
- I2C_Cmd(I2C1, ENABLE);
-
+ i2c_device_init();
i2c_init_done = 1;
}
-static void i2c_start(uint8_t device, uint8_t direction)
+static int i2c_start(uint8_t device, uint8_t direction)
{
- while(I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY));
I2C_GenerateSTART(I2Cx, ENABLE);
+
// wait for I2C1 EV5 --> Slave has acknowledged start condition
- while(!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_MODE_SELECT));
+ while (!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_MODE_SELECT));
// Send slave Address for write
I2C_Send7bitAddress(I2Cx, device << 1, direction);
@@ -91,47 +112,137 @@ static void i2c_start(uint8_t device, uint8_t direction)
* Master receiver mode, depending on the transmission
* direction
*/
- if(direction == I2C_Direction_Transmitter) {
- while(!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
+ uint32_t event = 0;
+ if (direction == I2C_Direction_Transmitter) {
+ event = I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED;
}
- else if(direction == I2C_Direction_Receiver) {
- while(!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
+ else if (direction == I2C_Direction_Receiver) {
+ event = I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED;
}
+ else {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+
+ while (!I2C_CheckEvent(I2Cx, event));
+
+ return 1;
}
-static void i2c_send(uint8_t data) {
+static int i2c_send(uint8_t data)
+{
I2C_SendData(I2Cx, data);
+
// wait for I2C1 EV8_2 --> byte has been transmitted
- while(!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
+ while (!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
+
+ return 1;
}
-void i2c_write(uint8_t device, const uint8_t *txbuf, int len) {
- i2c_start(device, I2C_Direction_Transmitter);
- for (int i = 0; i < len; i++) {
- i2c_send(txbuf[i]);
+int i2c_write(uint8_t device, const uint8_t *txbuf, int len)
+{
+ if (i2c_init_done == 0) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+
+ while (I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY));
+
+ int success = 0;
+
+ if (i2c_start(device, I2C_Direction_Transmitter)) {
+ for (int i = 0; i < len; i++) {
+ success = i2c_send(txbuf[i]);
+ if (!success) {
+ break;
+ }
+ }
}
I2C_GenerateSTOP(I2Cx, ENABLE);
+ while(!I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
+
+ return success;
}
-int i2c_read(uint8_t device, uint8_t *rxbuf, int len)
+static int i2c_read_nobuscheck(uint8_t device, uint8_t *rxbuf, int len)
{
+ if (i2c_init_done == 0) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+
i2c_start(device, I2C_Direction_Receiver);
for (int i = 0; i < len; i++) {
- if (i < len-1) {
- I2C_AcknowledgeConfig(I2Cx, ENABLE);
- // wait until one byte has been received
- while( !I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_RECEIVED) );
- rxbuf[i] = I2C_ReceiveData(I2Cx);
+ if (i == len-1) {
+ I2C_AcknowledgeConfig(I2Cx, DISABLE);
}
else {
- I2C_AcknowledgeConfig(I2Cx, DISABLE);
+ I2C_AcknowledgeConfig(I2Cx, ENABLE);
+ }
+
+ // wait until one byte has been received
+ while( !I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_RECEIVED) );
+
+ if (i == len-1) {
I2C_GenerateSTOP(I2Cx, ENABLE);
- // wait until one byte has been received
- while( !I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_RECEIVED) );
- rxbuf[i] = I2C_ReceiveData(I2Cx);
}
+
+ rxbuf[i] = I2C_ReceiveData(I2Cx);
}
return len;
}
+int i2c_read(uint8_t device, uint8_t *rxbuf, int len)
+{
+ while (I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY));
+
+ return i2c_read_nobuscheck(device, rxbuf, len);
+}
+
+int i2c_read_from(uint8_t device, uint8_t address, uint8_t *rxbuf, int len)
+{
+ if (i2c_init_done == 0) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+
+ while (I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY));
+
+ int success = i2c_start(device, I2C_Direction_Transmitter);
+ if (success) {
+ success = i2c_send(address);
+ }
+ // Don't do a STOP
+
+ if (success) {
+ success = i2c_read_nobuscheck(device, rxbuf, len);
+ }
+
+ return success;
+}
+
+
+
+void i2c_transaction_start()
+{
+ if (i2c_init_done == 0) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+ xSemaphoreTake(i2c_semaphore, portMAX_DELAY);
+}
+
+void i2c_transaction_end()
+{
+ if (i2c_init_done == 0) {
+ trigger_fault(FAULT_SOURCE_I2C);
+ }
+
+ if ( i2c_error ) {
+ I2C_SoftwareResetCmd(I2Cx, ENABLE);
+ I2C_SoftwareResetCmd(I2Cx, DISABLE);
+
+ i2c_device_init();
+
+ i2c_error = 0;
+ }
+
+ xSemaphoreGive(i2c_semaphore);
+}
+
diff --git a/src/fsm/i2c.h b/src/fsm/i2c.h
index 2e2dbd3..109213b 100644
--- a/src/fsm/i2c.h
+++ b/src/fsm/i2c.h
@@ -30,11 +30,24 @@
/* Initialise I2C on the board for both the audio codec and the GPS receiver */
void i2c_init();
-/* Do an I2C write */
-void i2c_write(uint8_t device, const uint8_t *txbuf, int len);
+/* Do an I2C write, return 1 on success, 0 on failure */
+int i2c_write(uint8_t device, const uint8_t *txbuf, int len);
-/* Do an I2C write into rxbuf. Returns number of bytes received */
+/* Do an I2C read into rxbuf.
+ * Returns number of bytes received, or 0 in case of failure
+ */
int i2c_read(uint8_t device, uint8_t *rxbuf, int len);
+/* Do an I2C write for the address, and then a read into rxbuf.
+ * Returns number of bytes received, or 0 in case of failure
+ */
+int i2c_read_from(uint8_t device, uint8_t address, uint8_t *rxbuf, int len);
+
+/* Start an I2C transaction, keeping exclusive access to I2C */
+void i2c_transaction_start(void);
+
+/* End an I2C transaction, unlocking the exclusive access to I2C */
+void i2c_transaction_end(void);
+
#endif // __I2C_H_
diff --git a/src/fsm/main.c b/src/fsm/main.c
index 225b2f9..58e4140 100644
--- a/src/fsm/main.c
+++ b/src/fsm/main.c
@@ -36,6 +36,8 @@
#include "semphr.h"
#include "cw.h"
#include "pio.h"
+#include "i2c.h"
+#include "gps.h"
#include "fsm.h"
#include "common.h"
@@ -48,7 +50,11 @@ void init();
// Tasks
static void detect_button_press(void *pvParameters);
static void exercise_fsm(void *pvParameters);
-static void audio_task(void *pvParameters);
+static void gps_monit_task(void *pvParameters);
+static void launcher_task(void *pvParameters);
+
+// Audio callback function
+static void audio_callback(void* context, int select_buffer);
struct cw_msg_s {
const char* msg;
@@ -65,22 +71,48 @@ void vApplicationStackOverflowHook( TaskHandle_t xTask,
int main(void) {
init();
- cw_init(16000);
+ TaskHandle_t task_handle;
+ xTaskCreate(
+ launcher_task,
+ "TaskLauncher",
+ configMINIMAL_STACK_SIZE,
+ (void*) NULL,
+ tskIDLE_PRIORITY + 2UL,
+ &task_handle);
- pio_init();
+ if (!task_handle) {
+ trigger_fault(FAULT_SOURCE_MAIN);
+ }
- common_init();
+ /* Start the RTOS Scheduler */
+ vTaskStartScheduler();
- InitializeAudio(Audio16000HzSettings);
- SetAudioVolume(164);
+ /* HALT */
+ while(1);
+}
+
+// Launcher task is here to make sure the scheduler is
+// already running when calling the init functions.
+static void launcher_task(void *pvParameters)
+{
+ cw_init(16000);
+ pio_init();
+ i2c_init();
+ common_init();
+ gps_init();
+ TaskHandle_t task_handle;
xTaskCreate(
detect_button_press,
"TaskButton",
4*configMINIMAL_STACK_SIZE,
(void*) NULL,
tskIDLE_PRIORITY + 2UL,
- NULL);
+ &task_handle);
+
+ if (!task_handle) {
+ trigger_fault(FAULT_SOURCE_MAIN);
+ }
xTaskCreate(
exercise_fsm,
@@ -88,24 +120,40 @@ int main(void) {
4*configMINIMAL_STACK_SIZE,
(void*) NULL,
tskIDLE_PRIORITY + 2UL,
- NULL);
+ &task_handle);
+
+ if (!task_handle) {
+ trigger_fault(FAULT_SOURCE_MAIN);
+ }
xTaskCreate(
- audio_task,
- "TaskAudio",
+ gps_monit_task,
+ "TaskGPSMonit",
configMINIMAL_STACK_SIZE,
(void*) NULL,
tskIDLE_PRIORITY + 2UL,
- NULL);
+ &task_handle);
- /* Start the RTOS Scheduler */
- vTaskStartScheduler();
+ if (!task_handle) {
+ trigger_fault(FAULT_SOURCE_MAIN);
+ }
- /* HALT */
- while(1);
+ InitializeAudio(Audio16000HzSettings);
+ SetAudioVolume(164);
+
+ PlayAudioWithCallback(audio_callback, NULL);
+
+
+ /* We are done now, suspend this task
+ * With FreeDOS' heap_1.c, we cannot delete it.
+ * See freertos.org -> More Advanced... -> Memory Management
+ * for more info.
+ */
+ while (1) {
+ vTaskSuspend(NULL);
+ }
}
-// disabled
static void detect_button_press(void *pvParameters)
{
GPIO_SetBits(GPIOD, GPIO_Pin_12);
@@ -160,11 +208,24 @@ static void audio_callback(void* context, int select_buffer)
ProvideAudioBufferWithoutBlocking(samples, samples_len);
}
-static void audio_task(void *pvParameters)
+
+static struct gps_time_s gps_time;
+static void gps_monit_task(void *pvParameters)
{
- PlayAudioWithCallback(audio_callback, NULL);
+ GPIO_SetBits(GPIOD, GPIO_Pin_15);
while (1) {
+ if (gps_locked()) {
+
+ gps_utctime(&gps_time);
+
+ if (gps_time.sec % 10 > 5) {
+ GPIO_SetBits(GPIOD, GPIO_Pin_15);
+ }
+ else {
+ GPIO_ResetBits(GPIOD, GPIO_Pin_15);
+ }
+ }
taskYIELD();
}
}
@@ -185,12 +246,6 @@ static void exercise_fsm(void *pvParameters)
fsm_input.start_tm = (tm_trigger == 1 && last_tm_trigger == 0) ? 1 : 0;
last_tm_trigger = tm_trigger;
- if (fsm_input.start_tm) {
- GPIO_SetBits(GPIOD, GPIO_Pin_15);
- }
- else {
- GPIO_ResetBits(GPIOD, GPIO_Pin_15);
- }
fsm_input.sq = fsm_input.carrier; // TODO clarify
fsm_input.cw_done = !cw_busy();
@@ -234,6 +289,9 @@ void init() {
//SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); // set CP10 and CP11 Full Access
// GPIOD Periph clock enable
+ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
+ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
+ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
// Configure PD12, PD13, PD14 and PD15 in output pushpull mode
@@ -257,7 +315,6 @@ void init() {
// Clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
// IO
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6;
diff --git a/src/fsm/ubx.h b/src/fsm/ubx.h
index 2af5705..e80464e 100644
--- a/src/fsm/ubx.h
+++ b/src/fsm/ubx.h
@@ -80,6 +80,23 @@ typedef enum ubx_state_e
UBXSTATE_CKB
} ubx_state_t;
+#define GPSFIX_3D 0x3
+
+// UBX messages to enable these messages on the I2C port
+#define UBX_ENABLE_NAV_SOL \
+ 0xB5, 0x62, 0x06, 0x01, 0x08, 0x00, \
+ 0x01, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x17, 0xDB
+
+#define UBX_ENABLE_NAV_TIMEUTC \
+ 0xB5, 0x62, 0x06, 0x01, 0x08, 0x00, \
+ 0x01, 0x21, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x32, 0x98
+
+#define UBX_ENABLE_TIM_TM2 \
+ 0xB5, 0x62, 0x06, 0x01, 0x08, 0x00, \
+ 0x0D, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x20, 0x26
typedef struct ubx_nav_sol_s
{