i.MX287 using the SSP for SPI and data collection?

danbocko — Fri, 05 Oct 2018 15:12:41 GMT

Does anyone have examples for the i.MX287 using the SSP for SPI and data collection? (Using FreeRTOS)

This is my current configuration but I am getting no clock;

HW_PINCTRL_MUXSEL5_bit.BANK2_PIN16 = 0; //   Select SSP2_SCK
HW_PINCTRL_DRIVE10_bit.BANK2_PIN16_V = 1; // 3.3V
HW_PINCTRL_DRIVE10_bit.BANK2_PIN16_MA = 0; // Low drive strength
HW_PINCTRL_MUXSEL5_bit.BANK2_PIN17 = 0; //   Select SSP2_MOSI
HW_PINCTRL_PULL2_bit.BANK2_PIN17 = 1;   //   Enable internal pullup
HW_PINCTRL_DRIVE10_bit.BANK2_PIN17_V = 1; // 3.3V
HW_PINCTRL_DRIVE10_bit.BANK2_PIN17_MA = 0; // Low drive strength
HW_PINCTRL_MUXSEL5_bit.BANK2_PIN18 = 0; //   Select SSP2_MISO
HW_PINCTRL_PULL2_bit.BANK2_PIN18 = 1;   //   Enable internal pullup
HW_PINCTRL_DRIVE10_bit.BANK2_PIN18_V = 1; // 3.3V
HW_PINCTRL_DRIVE10_bit.BANK2_PIN18_MA = 0; // Low drive strength
HW_PINCTRL_MUXSEL5_bit.BANK2_PIN19 = 0; //   Select SSP2_SS0
HW_PINCTRL_PULL2_bit.BANK2_PIN19 = 1;   //   Enable internal pullup
HW_PINCTRL_DRIVE10_bit.BANK2_PIN19_V = 1; // 3.3V
HW_PINCTRL_DRIVE10_bit.BANK2_PIN19_MA = 0; // Low drive strength
HW_SSP2_CTRL0_bit.RUN = 1;
HW_SSP2_CTRL0_bit.LOCK_CS = 1;
HW_SSP2_CTRL0_bit.READ = 0;
HW_SSP2_CTRL0_bit.DATA_XFER = 0;
HW_SSP2_CTRL0_bit.BUS_WIDTH = 0;
HW_SSP2_CTRL0_bit.WAIT_FOR_IRQ = 0;
HW_SSP2_CTRL0_bit.WAIT_FOR_CMD = 0;
HW_CLKCTRL_CLKSEQ_bit.BYPASS_SSP2 = 0;
HW_SSP2_TIMING_bit.TIMEOUT = 1000;
HW_SSP2_TIMING_bit.CLOCK_DIVIDE = 100;
HW_SSP2_TIMING_bit.CLOCK_RATE = 50;
HW_SSP2_CTRL1_bit.SLAVE_OUT_DISABLE = 1;
HW_SSP2_CTRL1_bit.SLAVE_MODE = 0;
HW_SSP2_CTRL1_bit.PHASE = 0;
HW_SSP2_CTRL1_bit.POLARITY = 0;
HW_SSP2_CTRL1_bit.SSP_MODE = 0;
HW_SSP2_CTRL1_bit.WORD_LENGTH = 3;

Thanks

Dan

Re: i.MX287 using the SSP for SPI and data collection?

igorpadykov — Wed, 10 Oct 2018 23:26:34 GMT

Hi Dan

unfortunately I am not aware of such examples, probably may help uboot patches

How to enable SPI NOR boot for i.MX28 (Spansion s25fl256s)

Best regards
igor
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i.MX287 using the SSP for SPI and data collection?

Re: i.MX287 using the SSP for SPI and data collection?