Compiler/DRA829V: SPI Configuration Verification

Hi Sunil,

Thanks for your information,

In the EB Tresos Configurator,  I did not see more information regarding SpiExtDeviceClockDivider .

May i know How 47 will be relates to 1 MHz. 

did you verify the configuration file. ?

we are facing one more issue like, when we change the HW_Unit to 1 - Getting redefined compilation error . May i Know what could be the problem for this parameter ?

Spi_Cfg.h

Hi Muthushankar,

The value you configure in SpiExtDeviceClockDivider  acts as 12 bit clock divider + 1.

SpiExtDeviceClockDivider internally split into 4 bit LSB bit will be programmed to CLKD register and remaining 8 bits to EXTCLK register. Together concatenated acts as 12 bit programmable divider. In the driver, clock granularity is set to 1 clock cycle. Please refer TRM for more details. 

By default Spi runs at 48 MHZ.

So 47(0x2F) as a 12 bit divider split into  000000101111 i.e 32 +15 + 1 = 48. (48 MHZ / 48 = 1 MHZ) I hope this answered your question.

Regarding redefined compilation error, please let me know what error you getting?

Regards,

Sunil Kumar M S

Hi Sunil,

Thanks a lot for your detailed information,

shared details are enough for me to proceed further,

For compilation error happen due to below two parameters, if the value as 7 I did not get the error.

But we configured  value as 2, i am getting below error.

can you please share some information regarding this.

is this problem with our configuration or those parameter are depends on other parameters?

/**
* \brief Maximum HW unit - This should match the sum for the below units ISR
* which are ON.
*/
#define SPI_MAX_HW_UNIT (7)

/**
* \brief Maximum external device cfg
*/
#define SPI_MAX_EXT_DEV (7)

Compilation error:

error: symbol "Spi_DrvObj" redefined: first defined in "<whole-program>";
redefined in
"/home/user/GCP/psdk_rtos_auto_j7_06_02_00_21/mcusw/binary/mcal/Spi/lib/j721
e/r5f/release/spi.aer5f<Spi.oer5f>"
error: symbol "Spi_DrvStatus" redefined: first defined in "<whole-program>";
redefined in
"/home/user/GCP/psdk_rtos_auto_j7_06_02_00_21/mcusw/binary/mcal/Spi/lib/j721
e/r5f/release/spi.aer5f<Spi.oer5f>"
error: symbol "Spi_getHwUnitBaseAddr" redefined: first defined in
"<whole-program>"; redefined in
"/home/user/GCP/psdk_rtos_auto_j7_06_02_00_21/mcusw/binary/mcal/Spi/lib/j721
e/r5f/release/spi.aer5f<Spi_Priv.oer5f>

Hi Muthushankar,

Please configure via EB Tresos instead of hardcoding it, because there will be dependency on other parameters so.

Regards,

Sunil Kumar M S