int puts(const char * str)
{
// There must be at least 1ms between USB frames (of up to 64 bytes)
// This buffers all data and writes it out from the buffer one frame
// and one millisecond at a time
#ifdef CFG_PRINTF_USBCDC
if (USB_Configuration)
{
while(*str)
cdcBufferWrite(*str++);
// Check if we can flush the buffer now or if we need to wait
unsigned int currentTick = systickGetTicks();
if (currentTick != lastTick)
{
uint8_t frame[64];
uint32_t bytesRead = 0;
while (cdcBufferDataPending())
{
// Read up to 64 bytes as long as possible
bytesRead = cdcBufferReadLen(frame, 64);
USB_WriteEP (CDC_DEP_IN, frame, bytesRead);
systickDelay(1);
}
lastTick = currentTick;
}
}
#else
// Handle output character by character in __putchar
while(*str) __putchar(*str++);
#endif
return 0;
}
int main(void)
{
// Configure cpu and mandatory peripherals
systemInit();
// Check if projectconfig.h is properly configured for this example
#if !defined CFG_CHIBI
#error "CFG_CHIBI must be enabled in projectconfig.h for this example"
#endif
#if CFG_CHIBI_PROMISCUOUS == 0
#error "CFG_CHIBI_PROMISCUOUS must set to 1 in projectconfig.h for this example"
#endif
#if defined CFG_INTERFACE
#error "CFG_INTERFACE must be disabled in projectconfig.h for this example"
#endif
#if defined CFG_CHIBI && CFG_CHIBI_PROMISCUOUS != 0
// Get a reference to the Chibi peripheral control block
chb_pcb_t *pcb = chb_get_pcb();
// Wait for incoming frames and transmit the raw data over uart
while(1)
{
// Check for incoming messages
while (pcb->data_rcv)
{
// get the length of the data
rx_data.len = chb_read(&rx_data);
// make sure the length is nonzero
if (rx_data.len)
{
// Enable LED to indicate message reception
gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_ON);
// Send raw data the to PC for processing using wsbridge
uint8_t i;
for (i=0; i<rx_data.len; i++)
{
#ifdef CFG_PRINTF_UART
uartSendByte(rx_data.data[i]);
#endif
#ifdef CFG_PRINTF_USBCDC
// ToDo: This really needs to be refactored!
if (USB_Configuration)
{
cdcBufferWrite(rx_data.data[i]);
// Check if we can flush the buffer now or if we need to wait
unsigned int currentTick = systickGetTicks();
if (currentTick != lastTick)
{
uint8_t frame[64];
uint32_t bytesRead = 0;
while (cdcBufferDataPending())
{
// Read 64 byte chunks until end of data
bytesRead = cdcBufferReadLen(frame, 64);
// debug_printf("%d,", bytesRead);
USB_WriteEP (CDC_DEP_IN, frame, bytesRead);
systickDelay(1);
}
lastTick = currentTick;
}
}
#endif
}
// Disable LED
gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
}
}
}
#endif
return 0;
}
