static int cin_wait(unsigned timeout)
{
int ret = -1;
u8 c;
vTaskDelay( timeout / portTICK_RATE_MS );
if (VCP_get_char(&c))
{
ret = (int)c;
}
return ret;
}
void TIM3_IRQHandler(void)
{
if(TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
{
A = !GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_0) * 0xFF;
S = !GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_1) * 0xFF;
D = !GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_2) * 0xFF;
F = !GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_3) * 0xFF;
if(VCP_get_char(&theByte))
{
if(theByte == 'H')
{
if(recieved)
{
VCP_put_char('I');
connected = true;
recieved = false;
}else
{
VCP_put_char('I');
recieved = true;
}
}else if (theByte == 'B')
{
if(recieved)
{
VCP_put_char('Y');
connected = false;
recieved = false;
}else
{
VCP_put_char('Y');
recieved = true;
}
}
}
if(connected)
{
VCP_put_char(0x38);
VCP_put_char(A);
VCP_put_char(S);
VCP_put_char(D);
VCP_put_char(F);
}
// wyzerowanie flagi wyzwolonego przerwania
TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
}
}
int _read(int file, char *ptr, int len) {
if (file != 0) {
return 0;
}
// Use USB CDC Port for stdin
while(!VCP_get_char((uint8_t*)ptr)){};
// Echo typed characters
VCP_put_char((uint8_t)*ptr);
return 1;
}
/**
* @brief Receive from usb
*/
void communication_receive_usb(void)
{
mavlink_message_t msg;
mavlink_status_t status = { 0 };
uint8_t character;
while (VCP_get_char(&character))
{
/* Try to get a new message */
if (mavlink_parse_char(MAVLINK_COMM_2, character, &msg, &status))
{
/* Handle message */
handle_mavlink_message(MAVLINK_COMM_2, &msg);
}
/* And get the next one */
}
}
int _read(int file, char *ptr, int len) {
char *p = ptr;
if (file != 0) {
return 0;
}
if (!VCP_get_char_test()) {
return 0;
}
while(VCP_get_char_test() && len > 0) {
VCP_get_char((uint8_t*)p++);
len -= 1;
}
return p - ptr;
}
int main(void)
{
/* Set up the system clocks */
SystemInit();
/* Initialize USB, IO, SysTick, and all those other things you do in the morning */
init();
while (1)
{
/* Blink the orange LED at 1Hz */
if (500 == ticker)
{
GPIOD->BSRRH = GPIO_Pin_13;
}
else if (1000 == ticker)
{
ticker = 0;
GPIOD->BSRRL = GPIO_Pin_13;
}
/* If there's data on the virtual serial port:
* - Send it to usart
* - Turn the green LED on for 10ms
*/
uint8_t theByte;
if (VCP_get_char(&theByte))
{
//VCP_put_char(theByte);
USART_SendData(USART1, theByte);
GPIOD->BSRRL = GPIO_Pin_12;
downTicker = 10;
}
if (0 == downTicker)
{
GPIOD->BSRRH = GPIO_Pin_12;
}
}
return 0;
}
void car_conn_rcv_buf_clear(void)
{
uint8_t tmp_char;
while (VCP_get_char(&tmp_char));
}
int main(void)
{
uint8_t acc_x, acc_y, acc_z;
tickerSendData = 0;
LIS302DL_InitTypeDef LIS302DL_InitStruct;
/* Set configuration of LIS302DL*/
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_100;
LIS302DL_InitStruct.Axes_Enable = LIS302DL_X_ENABLE | LIS302DL_Y_ENABLE | LIS302DL_Z_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
/* SPI SCK pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* SPI MOSI pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* SPI MISO pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Set up the system clocks */
SystemInit();
/* Initialize USB, IO, SysTick, and all those other things you do in the morning */
init();
while (1)
{
LIS302DL_Read(&acc_x, LIS302DL_OUT_X_ADDR, 1);
LIS302DL_Read(&acc_y, LIS302DL_OUT_Y_ADDR, 1);
LIS302DL_Read(&acc_z, LIS302DL_OUT_Z_ADDR, 1);
if ((tickerSendData) >= 50){
tickerSendData=0;
VCP_put_char(acc_x);
}
/* Blink the orange LED at 1Hz */
if (500 == ticker)
{
GPIOD->BSRRH = GPIO_Pin_13;
}
else if (1000 == ticker)
{
ticker = 0;
GPIOD->BSRRL = GPIO_Pin_13;
}
/* If there's data on the virtual serial port:
* - Echo it back
* - Turn the green LED on for 10ms
*/
uint8_t theByte;
if (VCP_get_char(&theByte))
{
GPIOD->BSRRL = GPIO_Pin_12;
downTicker = 10;
}
if (0 == downTicker)
{
GPIOD->BSRRH = GPIO_Pin_12;
}
}
return 0;
}
void vTaskVCP(void *pvParameters)
{
static u32 address = 0;
static uint8_t usb_inited = 0;
uint8_t c;
int arg;
uint8_t tmpbuf[EERROM_SIZE];
for(;;)
{
//Give the change to the OS scheduling. It is really a fool idea. Change me!
//TODO - should use semaphore
vTaskDelay( 1 / portTICK_RATE_MS );
// xSemaphoreTake(onVCPSemaphore, portMAX_DELAY);
if(usb_inited == 0)
{
GPIO_InitTypeDef gpio;
//This is a trick to perform a USB re-enumerate
gpio.GPIO_Pin = GPIO_Pin_12;
gpio.GPIO_Speed = GPIO_Speed_100MHz;
gpio.GPIO_Mode = GPIO_Mode_OUT;
gpio.GPIO_OType = GPIO_OType_PP;
gpio.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &gpio);
GPIO_SetBits(GPIOB, GPIO_Pin_12 );
vTaskDelay(500 / portTICK_RATE_MS);
GPIO_ResetBits(GPIOB, GPIO_Pin_12 );
// Initialize USB VCP. Do it ASAP
USBD_Init(&USB_OTG_dev, USB_OTG_FS_CORE_ID, &USR_desc, &USBD_CDC_cb,
&USR_cb);
usb_inited = 1;
}
if (VCP_get_char(&c))
{
switch(c) {
case PROTO_GET_SYNC:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
break;
case PROTO_GET_DEVICE:
arg = cin_wait(usb_vcp_timeout);
if (arg < 0)
goto cmd_bad;
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
switch (arg) {
case PROTO_DEVICE_BL_REV:
VCP_send_str((uint8_t*)&bl_proto_rev);
break;
default:
goto cmd_bad;
}
break;
case PROTO_START_TRANS:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
address = 0;
memset(tmpbuf,0,EERROM_SIZE);
break;
case PROTO_SET_PARAMS:
arg = cin_wait(usb_vcp_timeout);
if (arg < 0)
goto cmd_bad;
// sanity-check arguments
if (arg % 4)
goto cmd_bad;
if ((address + arg) > EERROM_SIZE)
goto cmd_bad;
for (int i = 0; i < arg; i++)
{
c = cin_wait(usb_vcp_timeout);
if (c < 0)
goto cmd_bad;
tmpbuf[address++] = c;
}
break;
case PROTO_END_TRANS:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
//ensure we receive right size
if(address == EERROM_SIZE)
{
memcpy(eeprom_buffer.c,tmpbuf,EERROM_SIZE);
// bool ret = StoreParams();
// if(!ret)
// {
// //TODO - handle flash write error here
// }
}
break;
case PROTO_SAVE_TO_FLASH:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
//ensure we receive right size
if(address == EERROM_SIZE)
{
bool ret = StoreParams();
if(!ret)
{
//TODO - handle flash write error here
}
}
break;
case PROTO_GET_PARAMS:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
for (int i = 0; i < EERROM_SIZE; i++)
{
VCP_put_char(eeprom_buffer.c[i]);
//TM_USB_VCP_Putc(testbuf[i]);
//vTaskDelay( 1 / portTICK_RATE_MS );
}
break;
case PROTO_BL_UPLOAD:
if (cin_wait(usb_vcp_timeout) != PROTO_EOC)
goto cmd_bad;
sync_response();
vTaskDelay( 200 / portTICK_RATE_MS );
GPIO_SetBits(GPIOB,GPIO_Pin_12);
vTaskDelay( 500 / portTICK_RATE_MS );
GPIO_ResetBits(GPIOB,GPIO_Pin_12);
__DSB(); /* Ensure all outstanding memory accesses included
buffered write are completed before reset */
SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) |
(SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk) |
SCB_AIRCR_SYSRESETREQ_Msk); /* Keep priority group unchanged */
__DSB(); /* Ensure completion of memory access */
while(1);
break;
default:
continue;
}
// send the sync response for this command
sync_response();
continue;
}
vTaskDelay( 10 / portTICK_RATE_MS );
continue;
cmd_bad:
// send an 'invalid' response but don't kill the timeout - could be garbage
invalid_response();
continue;
cmd_fail:
// send a 'command failed' response but don't kill the timeout - could be garbage
failure_response();
continue;
}
}