CCS/TMS570LC4357: SCI

Hello,

sciSend function is declared as follows:

void sciSend(sciBASE_t *sci, uint32 length, uint8 * data);

So, if you want to use sciSend to send data you should pass pointer to uint8 variable. Unsigned char is also with 8 bit  size.

Hello,

SCI Transmit register is 8 bit wide ( Figure 37-1 in TRM and Section 27.7.12.3 Transmit Data Buffer Register ).

So, if you need to send data wider than 8 bit you should split it.

Hello,

Sorry for the wrong numbers ( I was looking at TRM for different MCU ).
Detailed SCI Block Diagram is shown in Figure 30-1 - page 1719
Transmit Data Buffer Register (SCITD) is described in Section 30.7.12.3 - page 1753

For example if you have 16 bit data to send you should split it into 2 bytes of uint8.

Hello,

You can use something like this:

void send32BitData(sciBASE_t *sci, uint32_t ui32_data)

{

uint8_t ui8_data;

volatile int i = 0;

for( i = 4 ; i > 0 ; i-- )

{

ui8_data = (ui32_data >> 24) & 0xFF ;

while ((sci->FLR & SCI_TX_INT) == 0) { /* wait */ };

sci->TD = ui8_data;

ui32_data = ui32_data << 8 ;

}

}

Hello,

As I said in one of the posts above, you should pass uint8 to sciSend. There is no HALCoGen send32BitData function. This function is custom and splits 32 bit data into 4 uint8 data. If you want to send integer number represent by it's digits ASCII codes than you can use the following function:

Hello,

As I mentioned above:

"There is no HALCoGen send32BitData function. This function is custom and splits 32 bit data into 4 uint8 data. If you want to send integer number represent by it's digits ASCII codes than you can use the following function:......"

You have to add this code by yourself!