Other Parts Discussed in Thread: AWR2544, TCAN4550, , AWR2944
Hi
we use AWR2544 work with TCAN4550, But now I don`t read TCAN Device ID (The register 0x0000-0x000C don`t read) .
I use code example from TI (C:\ti\mmwave_mcuplus_sdk_04_06_00_01\mcu_plus_sdk_awr2544_09_01_00_05\examples\drivers\mibspi\mibspi_loopback),
and TCAN4550_DEMO. we use mibspi connected TCAN. The hardware schematic diagram are as follows:
AWR2544 example Demo mibspi_loopback config are as follows:
2544 init reset TCAN RST pin，
void freertos_main(void *args)
{
Drivers_open();
Board_driversOpen();
uint32_t baseAddr = (uint32_t)AddrTranslateP_getLocalAddr(CONFIG_GPIO0_TCAN4550_RST_BASE_ADDR);
GPIO_pinWriteHigh(baseAddr, CONFIG_GPIO0_TCAN4550_RST_PIN);
ClockP_sleep(1);
GPIO_pinWriteLow(baseAddr, CONFIG_GPIO0_TCAN4550_RST_PIN);
ClockP_usleep(5000);
//mibspi_loopback_main(NULL);
Test_Com();
vTaskDelete(NULL);
}
void Test_Com(void)
{
int32_t status = SystemP_SUCCESS;
uint32_t i;
int32_t transferOK;
MIBSPI_Transaction spiTransaction;
DebugP_log("[MIBSPI] Digital Test example started ...\r\n");
int len = 0;
gMibspiTxBuffer[len++] = 0x41;
gMibspiTxBuffer[len++] = 0x00;
gMibspiTxBuffer[len++] = 0x00;
gMibspiTxBuffer[len++] = 0x01;
gMibspiTxBuffer[len++] = 0x00;
gMibspiTxBuffer[len++] = 0x00;
gMibspiTxBuffer[len++] = 0x00;
gMibspiTxBuffer[len++] = 0x00;
SPI_write(gMibspiTxBuffer,len);
SPI_read(gMibspiRxBuffer,len);
SPI_read(gMibspiRxBuffer, len);
SPI_read(gMibspiRxBuffer, len);
return;
}
as sent above read DeviceID, the diagram of logic analyzer as follows:
when I canceled init TCAN Rst Pin, the MISO all bytes are 0xff, other waveform like above diagram.
Can you help ma, Let SPI commucation with TCAN properly, Thank you.
