CCS/CC2640R2F: Dual SPI transfer at the same clocks fragmented

Hello,

Can you clarify if you are attempting use the SSI peripherals or the sensor controller?  Do you have any example code you can share so I can recreate the issue?

Thanks,
Chris

Hey ,

thanks for your response ,

This is spi definition 

#include <ti/drivers/SPI.h>
#include <ti/drivers/spi/SPICC26XXDMA.h>

SPICC26XXDMA_Object spiCC26XXDMAObjects[CC2640R2_SPICOUNT];

const SPICC26XXDMA_HWAttrsV1 spiCC26XXDMAHWAttrs[CC2640R2_SPICOUNT] = {
{//slave
.baseAddr = SSI0_BASE,
.intNum = INT_SSI0_COMB,
.intPriority = ~0,
.swiPriority = 0,
.powerMngrId = PowerCC26XX_PERIPH_SSI0,
.defaultTxBufValue = 0,
.rxChannelBitMask = 1<<UDMA_CHAN_SSI0_RX,
.txChannelBitMask = 1<<UDMA_CHAN_SSI0_TX,
.mosiPin = _SPI1_MOSI,
.misoPin = _SPI1_MISO,
.clkPin = _SPI1_SCLK,
.csnPin = PIN_UNASSIGNED
},
{master

.baseAddr = SSI1_BASE,
.intNum = INT_SSI1_COMB,
.intPriority = ~0,
.swiPriority = 0,
.powerMngrId = PowerCC26XX_PERIPH_SSI1,
.defaultTxBufValue = 0,
.rxChannelBitMask = 1<<UDMA_CHAN_SSI1_RX,
.txChannelBitMask = 1<<UDMA_CHAN_SSI1_TX,
.mosiPin = _SPI2_MOSI,
.misoPin = _SPI2_MISO,
.clkPin = _SPI2_SCLK,
.csnPin = PIN_UNASSIGNED
}
};

const SPI_Config SPI_config[CC2640R2_SPICOUNT] = {
{
.fxnTablePtr = &SPICC26XXDMA_fxnTable,
.object = &spiCC26XXDMAObjects[CC2640R2_SPI0],
.hwAttrs = &spiCC26XXDMAHWAttrs[CC2640R2_SPI0]
},
{
.fxnTablePtr = &SPICC26XXDMA_fxnTable,
.object = &spiCC26XXDMAObjects[CC2640R2_SPI1],
.hwAttrs = &spiCC26XXDMAHWAttrs[CC2640R2_SPI1]
},
};

SPI master and slave size =8 , both in mode callback , both in mode 3 ( PHA1POL1) ,both in callback .
spi master transaction 70, abd slave 1000,

master transaction each 250 microsecinds and slave transaction each 6 milliseconds .

both SPI's work fine separately .

Thanks 

What are you settings in the CC2640R2_LAUNCHXL.h ?

/* SPI Board */
#define CC2640R2_LAUNCHXL_SPI0_MISO             IOID_8          /* RF1.20 */
#define CC2640R2_LAUNCHXL_SPI0_MOSI             IOID_9          /* RF1.18 */
#define CC2640R2_LAUNCHXL_SPI0_CLK              IOID_10         /* RF1.16 */
#define CC2640R2_LAUNCHXL_SPI0_CSN              IOID_11
#define CC2640R2_LAUNCHXL_SPI1_MISO             PIN_UNASSIGNED
#define CC2640R2_LAUNCHXL_SPI1_MOSI             PIN_UNASSIGNED
#define CC2640R2_LAUNCHXL_SPI1_CLK              PIN_UNASSIGNED
#define CC2640R2_LAUNCHXL_SPI1_CSN              PIN_UNASSIGNED

Regards,

Chris

I have not had success in recreating the issue.

Please see the attached project.  I am using the launchpad.dualSPI.zip

Regards,

Chris

Hey,

Thanks for your code example .

I'm using simplelink_cc2640r2_sdk_1_40_00_45 and the SPI driver looks different .

I thinks changing the simple link version should solve the issue .

Thanks a lot , i need to check this and i will keep you updated .