void BSP_Ser_RdStr (CPU_CHAR *p_str,
CPU_INT16U len)
{
CPU_CHAR rx_data;
CPU_CHAR rx_buf_ix;
CPU_BOOLEAN bContinueRx;
CPU_BOOLEAN err;
rx_buf_ix = 0;
p_str[0] = 0;
bContinueRx = DEF_TRUE;
if (BSP_SerialInitilizated == DEF_TRUE)
{
err = BSP_OS_SemWait(&BSP_SerLock, 0); /* Obtain access to the serial interface */
if (err != DEF_OK )
{
return;
}
do
{
rx_data = BSP_Ser_RdByteUnlocked();
if ((rx_data == ASCII_CHAR_CARRIAGE_RETURN) || /* Is it '\r' or '\n' character ? */
(rx_data == ASCII_CHAR_LINE_FEED )) {
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_LINE_FEED);
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_CARRIAGE_RETURN);
p_str[rx_buf_ix] = 0; /* set the null character at the end of the string */
bContinueRx = DEF_FALSE; /* exit the loop */
}
else if (rx_data == ASCII_CHAR_BACKSPACE) { /* Is backspace character ? */
if (rx_buf_ix > 0) {
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_BACKSPACE);
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_SPACE);
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_BACKSPACE);
rx_buf_ix--; /* Decrement the index */
p_str[rx_buf_ix] = 0;
}
}
else if (ASCII_IsPrint(rx_data)) { /* Is it a printable character ... ? */
BSP_Ser_WrByteUnlocked((CPU_INT08U)rx_data); /* Echo-back */
p_str[rx_buf_ix] = rx_data; /* Save the received character in the buffer */
rx_buf_ix++; /* Increment the buffer index */
if (rx_buf_ix >= len) {
rx_buf_ix = len;
}
}
} while (bContinueRx == DEF_TRUE);
BSP_OS_SemPost(&BSP_SerLock); /* Release access to the serial interface */
}
}
void BSP_Ser_RdStr (CPU_CHAR *p_str,
CPU_INT16U len)
{
CPU_CHAR *p_char;
CPU_BOOLEAN rxd_history_char0;
CPU_CHAR rx_data;
CPU_BOOLEAN err;
rxd_history_char0 = DEF_NO;
p_str[0] = (CPU_CHAR)'\0';
p_char = p_str;
err = BSP_OS_SemWait(&BSP_SerLock, 0); /* Obtain access to the serial interface */
if (err != DEF_OK ) {
return;
}
while (DEF_TRUE)
{
rx_data = BSP_Ser_RdByteUnlocked();
if ((rx_data == ASCII_CHAR_CARRIAGE_RETURN) || /* Is it '\r' or '\n' character ? */
(rx_data == ASCII_CHAR_LINE_FEED )) {
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_LINE_FEED);
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_CARRIAGE_RETURN);
*p_char = (CPU_CHAR)'\0'; /* set the null character at the end of the string */
#if (BSP_CFG_SER_CMD_HISTORY_LEN > 0u)
Str_Copy(BSP_SerCmdHistory, p_str);
#endif
break; /* exit the loop */
}
if (rx_data == ASCII_CHAR_BACKSPACE) { /* Is backspace character */
if (p_char > p_str) {
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_BACKSPACE);
p_char--; /* Decrement the index */
}
}
if ((ASCII_IsPrint(rx_data) ) &&
(rxd_history_char0 == DEF_NO)) { /* Is it a printable character ... ? */
BSP_Ser_WrByteUnlocked((CPU_INT08U)rx_data); /* Echo-back */
*p_char = rx_data; /* Save the received character in the buffer */
p_char++; /* Increment the buffer index */
if (p_char >= &p_str[len]) {
p_char = &p_str[len];
}
} else if ((rx_data == ASCII_CHAR_ESCAPE) &&
(rxd_history_char0 == DEF_NO )) {
rxd_history_char0 = DEF_YES;
#if (BSP_CFG_SER_CMD_HISTORY_LEN > 0u)
} else if ((rx_data == ASCII_CHAR_LEFT_SQUARE_BRACKET) &&
(rxd_history_char0 == DEF_YES )) {
while (p_char != p_str) {
BSP_Ser_WrByteUnlocked((CPU_INT08U)ASCII_CHAR_BACKSPACE);
p_char--; /* Decrement the index */
}
Str_Copy(p_str, BSP_SerCmdHistory);
while (*p_char != '\0') {
BSP_Ser_WrByteUnlocked(*p_char++);
}
#endif
} else {
rxd_history_char0 = DEF_NO;
}
}
BSP_OS_SemPost(&BSP_SerLock); /* Release access to the serial interface */
}
