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Code Issues Releases Activity

com-bridge: detect lost characters on transmit

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This commit is contained in:
Stacey Sheldon 2011-12-26 17:21:36 -05:00
parent 80e0be3cec
commit a68f5a4fc9
1 changed files with 10 additions and 8 deletions
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18
flight/Modules/ComUsbBridge/ComUsbBridge.c
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@ -103,16 +103,17 @@ MODULE_INITCALL(comUsbBridgeInitialize, comUsbBridgeStart)
static void com2UsbBridgeTask(void *parameters)
{
/* Handle usart -> vcp direction */
volatile uint32_t tx_errors = 0;
while (1) {
uint32_t rx_bytes;
rx_bytes = PIOS_COM_ReceiveBuffer(usart_port, com2usb_buf, BRIDGE_BUF_LEN, 500);
if (rx_bytes > 0) {
if (PIOS_COM_SendBuffer(vcp_port, com2usb_buf, rx_bytes)) {
vTaskDelay(10 / portTICK_RATE_MS);
/* Bytes available to transfer */
if (PIOS_COM_SendBuffer(vcp_port, com2usb_buf, rx_bytes) != rx_bytes) {
/* Error on transmit */
tx_errors++;
}
} else {
vTaskDelay(10 / portTICK_RATE_MS);
}
}
}
@ -120,16 +121,17 @@ static void com2UsbBridgeTask(void *parameters)
static void usb2ComBridgeTask(void * parameters)
{
/* Handle vcp -> usart direction */
volatile uint32_t tx_errors = 0;
while (1) {
uint32_t rx_bytes;
rx_bytes = PIOS_COM_ReceiveBuffer(vcp_port, usb2com_buf, BRIDGE_BUF_LEN, 500);
if (rx_bytes > 0) {
if (PIOS_COM_SendBuffer(usart_port, usb2com_buf, rx_bytes)) {
vTaskDelay(10 / portTICK_RATE_MS);
/* Bytes available to transfer */
if (PIOS_COM_SendBuffer(usart_port, usb2com_buf, rx_bytes) != rx_bytes) {
/* Error on transmit */
tx_errors++;
}
} else {
vTaskDelay(10 / portTICK_RATE_MS);
}
}
}