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1d46f55bdd
The examples in this case are designed for the IMXRT1060-EVK. The same chip is used in the Teensy 4.0/1, but that will probably get its own set of examples due to some differences such as the FCB.
61 lines
2.5 KiB
Rust
61 lines
2.5 KiB
Rust
//! FlexSPI configuration block (FCB) for the iMXRT1060-EVK
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//!
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//! This uses IS25WP QuadSPI flash.
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#![no_std]
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use imxrt_boot_gen::flexspi::opcodes::sdr::*;
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use imxrt_boot_gen::flexspi::{self, FlashPadType, ReadSampleClockSource, SerialClockFrequency, SerialFlashRegion, *};
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use imxrt_boot_gen::serial_flash::*;
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pub use nor::ConfigurationBlock;
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const SEQ_READ: Sequence = SequenceBuilder::new()
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.instr(Instr::new(CMD, Pads::One, 0xEB))
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.instr(Instr::new(RADDR, Pads::Four, 0x18))
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.instr(Instr::new(DUMMY, Pads::Four, 0x06))
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.instr(Instr::new(READ, Pads::Four, 0x04))
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.build();
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const SEQ_READ_STATUS: Sequence = SequenceBuilder::new()
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.instr(Instr::new(CMD, Pads::One, 0x05))
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.instr(Instr::new(READ, Pads::One, 0x04))
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.build();
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const SEQ_WRITE_ENABLE: Sequence = SequenceBuilder::new().instr(Instr::new(CMD, Pads::One, 0x06)).build();
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const SEQ_ERASE_SECTOR: Sequence = SequenceBuilder::new()
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.instr(Instr::new(CMD, Pads::One, 0x20))
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.instr(Instr::new(RADDR, Pads::One, 0x18))
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.build();
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const SEQ_PAGE_PROGRAM: Sequence = SequenceBuilder::new()
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.instr(Instr::new(CMD, Pads::One, 0x02))
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.instr(Instr::new(RADDR, Pads::One, 0x18))
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.instr(Instr::new(WRITE, Pads::One, 0x04))
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.build();
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const SEQ_CHIP_ERASE: Sequence = SequenceBuilder::new().instr(Instr::new(CMD, Pads::One, 0x60)).build();
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const LUT: LookupTable = LookupTable::new()
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.command(Command::Read, SEQ_READ)
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.command(Command::ReadStatus, SEQ_READ_STATUS)
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.command(Command::WriteEnable, SEQ_WRITE_ENABLE)
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.command(Command::EraseSector, SEQ_ERASE_SECTOR)
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.command(Command::PageProgram, SEQ_PAGE_PROGRAM)
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.command(Command::ChipErase, SEQ_CHIP_ERASE);
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const COMMON_CONFIGURATION_BLOCK: flexspi::ConfigurationBlock = flexspi::ConfigurationBlock::new(LUT)
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.version(Version::new(1, 4, 0))
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.read_sample_clk_src(ReadSampleClockSource::LoopbackFromDQSPad)
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.cs_hold_time(3)
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.cs_setup_time(3)
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.controller_misc_options(0x10)
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.serial_flash_pad_type(FlashPadType::Quad)
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.serial_clk_freq(SerialClockFrequency::MHz133)
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.flash_size(SerialFlashRegion::A1, 8 * 1024 * 1024);
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pub const SERIAL_NOR_CONFIGURATION_BLOCK: nor::ConfigurationBlock =
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nor::ConfigurationBlock::new(COMMON_CONFIGURATION_BLOCK)
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.page_size(256)
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.sector_size(4096)
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.ip_cmd_serial_clk_freq(nor::SerialClockFrequency::MHz30);
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#[no_mangle]
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#[cfg_attr(all(target_arch = "arm", target_os = "none"), link_section = ".fcb")]
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pub static FLEXSPI_CONFIGURATION_BLOCK: nor::ConfigurationBlock = SERIAL_NOR_CONFIGURATION_BLOCK;
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