Hello all,
We have developed our own custom-made board consist of CC1310 MCU and External Flash memory (The same chip as CC1310 Launchpad).
The following pins have been assigned to activate SPI communication with Flash:
MISO-->DIO14
MOSI-->DIO13
CLK-->DIO15
CS-->DIO23
I have modified Board.h, CC1310_LAUNCHXL.c, CC1310_LAUNCHXL.h and CC1310_LAUNCHXL_fxns.c to set the above-mentioned configuration.
CC1310_LAUNCHXL.h:
#define CC1310_LAUNCHXL_SPI_FLASH_CS IOID_23
#define CC1310_LAUNCHXL_SPI1_MISO IOID_14
#define CC1310_LAUNCHXL_SPI1_MOSI IOID_13
#define CC1310_LAUNCHXL_SPI1_CLK IOID_15
#define CC1310_LAUNCHXL_SPI1_CSN PIN_UNASSIGNED
CC1310_LAUNCHXL.c:
As I'm not using NVSSPI25X Driver Manages Chip Select (which uses IOID_20 as chip select) I have assigned NVSSPI25X_SPI_MANAGES_CS to spiCsnGpioIndex (reference: https://software-dl.ti.com/simplelink/esd/simplelink_msp432_sdk/2.40.00.10/docs/tidrivers/doxygen/html/_n_v_s_s_p_i25_x_8h.html)
/* Hardware attributes for NVS External Regions */
const NVSSPI25X_HWAttrs nvsSPI25XHWAttrs[1] = {
{
.regionBaseOffset = 0,
.regionSize = SPIREGIONSIZE,
.sectorSize = SPISECTORSIZE,
.verifyBuf = verifyBuf,
.verifyBufSize = VERIFYBUFSIZE,
.spiHandle = NULL,
.spiIndex = 1,
.spiBitRate = 4000000,
.spiCsnGpioIndex = NVSSPI25X_SPI_MANAGES_CS,
.statusPollDelayUs = 100,
},
};
But the problem is still there and it cannot recognize DIO23 as SPI chip select.
I think I have to use User Manages Chip Select which requires using the gollowing 4 functions:
void NVSSPI25X_initSpiCs(NVS_Handle nvsHandle, uint16_t csId);
void NVSSPI25X_deinitSpiCs(NVS_Handle nvsHandle, uint16_t csId);
void NVSSPI25X_assertSpiCs(NVS_Handle nvsHandle, uint16_t csId);
void NVSSPI25X_deassertSpiCs(NVS_Handle nvsHandle, uint16_t csId);
I have no idea how and where to use them. For example, where should I define the SPI Chip Select in those functions? What should I write in .spiCsnGpioIndex?
Would you please proved an example?
Thank you so much
