Hi all,
I am going nuts with MDB serial communication, sending MARK/SPACE data. CPU clock is se to 24Mhz.
I have an UART block, set to 9600 and no hw flow. 1 bit parity. I use the block only for sending. The problem that i'm facing that MARK is set on wrong characters which i trace on the line. If i CyDelay(100) it always works, but the problem arises when I want to sent characters in sequence:
For example following code:
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_MARK);
UART_MDB_SLAVE_TX_PutChar((uint8) 0x01); //
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_SPACE);
UART_MDB_SLAVE_TX_PutChar((uint8) 0x02); //
UART_MDB_SLAVE_TX_PutChar((uint8) 0x03); //
UART_MDB_SLAVE_TX_PutChar((uint8) 0x04); //
Puts mark on byte 0x03 ?! or sometimes 0x02...
If i send 5 bytes
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_MARK);
UART_MDB_SLAVE_TX_PutChar((uint8) 0x01); //
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_SPACE);
UART_MDB_SLAVE_TX_PutChar((uint8) 0x02); //
UART_MDB_SLAVE_TX_PutChar((uint8) 0x03); //
UART_MDB_SLAVE_TX_PutChar((uint8) 0x04); //
UART_MDB_SLAVE_TX_PutChar((uint8) 0x04); //
Puts mark correctly on 0x01
So am i getting this wrong somehow ? To me it looks random, if i send in a while loop:
while(1)
{
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_MARK);
UART_MDB_SLAVE_TX_PutChar((uint8) 0x01); //
UART_MDB_SLAVE_TX_SetTxAddressMode(UART_MDB_SLAVE_TX_SET_SPACE);
}
Mark is set ever 5 - 10th byte ?!
What am i missing ?
Please some help 
