how to set the High-drive QSPI?

RE: how to set the High-drive QSPI?

user75734 — Mon, 23 May 2022 12:14:38 GMT

Yes, all pins should be set to "high drive" to ensure the QSPI altogether runs in high drive. It's described in detail what to do in the product specification of the nRF52840.

Best regards,

Simon

RE: how to set the High-drive QSPI?

user89602 — Mon, 23 May 2022 01:54:14 GMT

1.init qspi

2.set all pin NRF_GPIO_PIN_H0H1

Is it the right way to set up the QSPI Hight-drive?

RE: how to set the High-drive QSPI?

user75734 — Fri, 20 May 2022 08:06:34 GMT

Is this setup working for you, or are you still having trouble? Let me know if this case can be closed.

Best regards,

Simon

RE: how to set the High-drive QSPI?

user89602 — Thu, 19 May 2022 06:09:27 GMT

SDK15.2

1.init qspi

2.set all pin NRF_GPIO_PIN_H0H1

 nrf_drv_qspi_config_t config;
        config.pins.csn_pin = FLASH_QSPI_CSN_NUMBER;
        config.pins.sck_pin = FLASH_QSPI_SCK_NUMBER;
        config.pins.io0_pin = FLASH_QSPI_IO0_NUMBER;
        config.pins.io1_pin = FLASH_QSPI_IO1_NUMBER;
        config.pins.io2_pin = FLASH_QSPI_IO2_NUMBER;
        config.pins.io3_pin = FLASH_QSPI_IO3_NUMBER;


        config.prot_if.readoc = NRF_QSPI_READOC_READ4O;
        config.prot_if.writeoc = NRF_QSPI_WRITEOC_PP4O;
        config.prot_if.addrmode = NRF_QSPI_ADDRMODE_24BIT;
        config.prot_if.dpmconfig = 0;
        config.phy_if.sck_delay = 0x01;
        config.phy_if.dpmen = 0;
        config.phy_if.spi_mode = NRF_QSPI_MODE_0;
        config.phy_if.sck_freq = FLASH_QSPI_HZ;
        config.irq_priority = 0x06;
        config.xip_offset = 0;
        int err_code = nrf_drv_qspi_init(&config, NULL, NULL);
        APP_ERROR_CHECK(err_code);




        nrf_gpio_cfg(FLASH_QSPI_CSN_NUMBER,
                     NRF_GPIO_PIN_DIR_OUTPUT,
                     NRF_GPIO_PIN_INPUT_CONNECT,
                     NRF_GPIO_PIN_NOPULL,
                     NRF_GPIO_PIN_H0H1,
                     NRF_GPIO_PIN_NOSENSE);

        nrf_gpio_cfg(FLASH_QSPI_SCK_NUMBER,
                     NRF_GPIO_PIN_DIR_OUTPUT,
                     NRF_GPIO_PIN_INPUT_CONNECT,
                     NRF_GPIO_PIN_NOPULL,
                     NRF_GPIO_PIN_H0H1,
                     NRF_GPIO_PIN_NOSENSE);

        nrf_gpio_cfg(FLASH_QSPI_IO1_NUMBER,
                     NRF_GPIO_PIN_DIR_OUTPUT,
                     NRF_GPIO_PIN_INPUT_CONNECT,
                     NRF_GPIO_PIN_NOPULL,
                     NRF_GPIO_PIN_H0H1,
                     NRF_GPIO_PIN_NOSENSE);

        nrf_gpio_cfg(FLASH_QSPI_IO2_NUMBER,
                     NRF_GPIO_PIN_DIR_OUTPUT,
                     NRF_GPIO_PIN_INPUT_CONNECT,
                     NRF_GPIO_PIN_NOPULL,
                     NRF_GPIO_PIN_H0H1,
                     NRF_GPIO_PIN_NOSENSE);

        nrf_gpio_cfg(FLASH_QSPI_IO3_NUMBER,
                     NRF_GPIO_PIN_DIR_OUTPUT,
                     NRF_GPIO_PIN_INPUT_CONNECT,
                     NRF_GPIO_PIN_NOPULL,
                     NRF_GPIO_PIN_H0H1,
                     NRF_GPIO_PIN_NOSENSE);

RE: how to set the High-drive QSPI?

user75734 — Wed, 18 May 2022 11:56:09 GMT

What SDK and SDK version are you using for development? You can see how to set the drive strength for any GPIO in this case where my colleague Amanda explains how to.

Best regards,

Simon