Hello, I'm using CCS5 with TI compiler 7.3.4 on a C6478 LCDK board.
I'm writing the UART communication scheme, and I'm seeing some odd behavior. I'm using an enum type to receive a uart command.
//enum declaration
enum rxstate_type {READY, START_BYTE_RECEIVED,LEN1_RECEIVED, LENGTH_RECEIVED};
enum rxstate_type rxstate = READY;
//in UART ISR
switch(rxstate)
{
//waiting to RX start byte
case READY:
temp = UARTCharGetNonBlocking(SOC_UART_2_REGS);
if(temp == STARTBYTE)
{
rxstate = START_BYTE_RECEIVED;
}
break;
case START_BYTE_RECEIVED:
rxArray[rx_count++] = UARTCharGetNonBlocking(SOC_UART_2_REGS);
rxstate = LEN1_RECEIVED;
break;
case LEN1_RECEIVED:
rxArray[rx_count++] = (UARTCharGetNonBlocking(SOC_UART_2_REGS));
rx_len = rxArray[0] << 8;
rx_len = rx_len + (rxArray[1]&0xFF);
rxstate = LENGTH_RECEIVED;
break;
///etc etc etc
My rxstate variable starts out as "READY"
When I received the startbyte, it successfully changes to "START_BYTE_RECEIVED". However, in LEN1_RECEIVED case, the rxstate doesn't change to LEN1_RECEIVED.
I've set a breakpoint and stepped through the code, but rxstate doesn't change. Any help with this would be appreciated.
Thanks
