Other Parts Discussed in Thread: TMDS570LS31HDK, HALCOGEN
Hi,
This issue is related to several tests about SPI communication.
The first successful test is based on TMS570LS12x. The test involved with SPI1 and SPI3 based on code of "example_spi_Master_Slave.c". The link of URL is https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/902181.
The second failed test is based on TMS570LS12x and AD7705 on my board. The link of URL is https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/907453.
In order to find the cause for the second test, I make the third test between SPI1 (as master in poll mode like the first test) in TMS570LS12x launchpad and SPI2 (as slave in interrupt mode like the first test) in TMDS570LS31HDK. According to observate receive buffer of master, it is founded that every data is 65535 shown as below.
The config of SPI1 and SPI2 are shown as below.
Here is test code for SPI1 running on TMS570LS12x.
/* USER CODE BEGIN (0) */
/* USER CODE END */
/* Include Files */
#include "sys_common.h"
/* USER CODE BEGIN (1) */
#include "spi.h"
#include "gio.h"
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
* @note This function is empty by default.
*
* This function is called after startup.
* The user can use this function to implement the application.
*/
/* USER CODE BEGIN (2) */
#define DELAY_VALUE 1000000
uint16 TX_Data_Master[16] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10 };
uint16 TX_Data_Slave[16] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20 };
uint16 RX_Data_Master[16] = { 0 };
uint16 RX_Data_Slave[16] = { 0 };
uint16 cmd=0;
/* USER CODE END */
int main(void)
{
/* USER CODE BEGIN (3) */
int i;
spiDAT1_t dataconfig1_t;
dataconfig1_t.CS_HOLD = FALSE;
dataconfig1_t.WDEL = TRUE;
dataconfig1_t.DFSEL = SPI_FMT_0;
dataconfig1_t.CSNR = 0x01;//0xFE;
gioInit();
/* Initialize SPI Module Based on GUI configuration
* SPI1 - Master ( SIMO, SOMI, CLK, CS0 ) @TMS570LS12x poll mode
* SPI2 - Slave ( SIMO, SOMI, CLK, CS0 ) @TMDS570LS31HDK interrupt mode
* this is master of SPI1
* */
spiInit();
while(1)
{
/* Initiate SPI1 Transmit and Receive through Polling Mode*/
spiTransmitAndReceiveData(spiREG1, &dataconfig1_t, 16, TX_Data_Master, RX_Data_Master);
while(SPI_COMPLETED==SpiRxStatus(spiREG1));
if(RX_Data_Master[15]==0x20)
{
RX_Data_Master[15]=0xff;
gioToggleBit(gioPORTB, 1);
}
else
{
gioSetBit(gioPORTB, 2, 1);
// while(1);
}
}
for(i=0;i<DELAY_VALUE;i++);
/* USER CODE END */
return 0;
}
Here is test code for SPI2 running on TMDS570LS31HDK.
/* USER CODE BEGIN (0) */
/* USER CODE END */
/* Include Files */
#include "sys_common.h"
/* USER CODE BEGIN (1) */
#include "gio.h"
#include "het.h"
#include "spi.h"
#include "rti.h"
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
* @note This function is empty by default.
*
* This function is called after startup.
* The user can use this function to implement the application.
*/
/* USER CODE BEGIN (2) */
#define DELAY_VALUE 1000000
uint16 TX_Data_Master[16] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10 };
uint16 TX_Data_Slave[16] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20 };
uint16 RX_Data_Master[16] = { 0 };
uint16 RX_Data_Slave[16] = { 0 };
uint16 cmd=0;
/* USER CODE END */
int main(void)
{
/* USER CODE BEGIN (3) */
int i;
spiDAT1_t dataconfig1_t;
dataconfig1_t.CS_HOLD = FALSE;
dataconfig1_t.WDEL = TRUE;
dataconfig1_t.DFSEL = SPI_FMT_0;
dataconfig1_t.CSNR = 0x01;//0xFE;
gioInit();
hetInit();
/* Enable CPU Interrupt through CPSR */
_enable_IRQ();
/* Initialize RTI */
rtiInit();
/* Enable RTI compare 0 notification */
rtiEnableNotification(rtiNOTIFICATION_COMPARE0);
/* Start counter */
rtiStartCounter(rtiCOUNTER_BLOCK0);
/* This is slave spi2. */
spiInit();
while(1)
{
/* Initiate SPI2 Transmit and Receive through Interrupt Mode */
spiSendAndGetData(spiREG2, &dataconfig1_t, 16, TX_Data_Slave, RX_Data_Slave);
while(cmd==1);
cmd=0;
}
/* USER CODE END */
return 0;
}
/* USER CODE BEGIN (4) */
void spiEndNotification(spiBASE_t *spi)
{
if(SPI_COMPLETED==SpiRxStatus(spi))
{
if(RX_Data_Slave[15]==0X10)
{
RX_Data_Slave[15]=0;
gioToggleBit(hetPORT1, 27);
cmd==1;
return;
}
else
{
gioSetBit(hetPORT1, 17, 1);
return;
}
}else if(SPI_COMPLETED==SpiTxStatus(spi))
{
gioToggleBit(hetPORT1, 5);
return;
}
else
{
gioSetBit(hetPORT1, 25, 1);
return;
}
}
void rtiNotification(uint32 notification)
{
gioToggleBit(hetPORT1, 29);
}
/* USER CODE END */
The photo of connecting TMS570LS12x launchpad and TMDS570LS31HDK is shown as below.
Please help me to find out my mistake or something I missed.
Best regards
Datïan
