How to correctly init SPI on ESP32?

[vowstar]

I'm trying to play a SPI LCD using ESP32. On ESP31B, I use these code below. But on ESP32, the spi_register.h is different form ESP31B, for example SPI_USR_MOSI_BITLEN_S is disappeared.

#define HSPI 2
void spi_init()
{
    //SPI clk = 40MHz
    WRITE_PERI_REG(SPI_CLOCK(HSPI), (0<<SPI_CLKDIV_PRE_S) |
        (1<<SPI_CLKCNT_N_S)|(1<<SPI_CLKCNT_L_S)|(0<<SPI_CLKCNT_H_S));
    WRITE_PERI_REG(SPI_CTRL(HSPI), 0);//SPI_WR_BIT_ORDER);
    WRITE_PERI_REG(SPI_USER(HSPI), SPI_CS_SETUP|SPI_CS_HOLD|SPI_USR_MOSI|SPI_WR_BYTE_ORDER);
    WRITE_PERI_REG(SPI_USER1(HSPI), (9<<SPI_USR_MOSI_BITLEN_S));
}

Is SPI_USR_MOSI_BITLEN_S in ESP31B equivalent to SPI_USR_MOSI_DBITLEN_S in ESP32 ? How to correctly init SPI on ESP32?

Thanks.

[costaud]

yes, SPI_USR_MOSI_DBITLEN_S is the same as SPI_USR_MOSI_BITLEN_S.