{"id":6069,"date":"2023-01-26T14:27:36","date_gmt":"2023-01-26T05:27:36","guid":{"rendered":"https:\/\/solid.kmckk.com\/SOLID\/?p=6069"},"modified":"2023-01-31T08:33:25","modified_gmt":"2023-01-30T23:33:25","slug":"solid%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86%e3%82%b7%e3%83%aa%e3%83%bc%e3%82%ba3-%e3%80%8c%e3%82%b3%e3%83%bc%e3%83%89%e3%82%ab%e3%83%90%e3%83%ac%e3%83%83%e3%82%b8%e3%80%8d-2-5-2-2-2-5","status":"publish","type":"post","link":"https:\/\/solid.kmckk.com\/SOLID\/archives\/6069","title":{"rendered":"SOLID for Raspberry Pi 4 (\u9023\u8f0912)"},"content":{"rendered":"
\n
\n\t

(2023\/1\/26)<\/p>\n<\/div>\n<\/div><\/div>

Rust\u3067SPI\u5236\u5fa1<\/h3>\n
\n\t

\u3044\u3088\u3044\u3088\u3001Rust\u304b\u3089\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u5236\u5fa1\u3057\u3066\u3044\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u81ea\u5206\u3067\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002
\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u80fd\u306e\u4e8b\u306f\u5f8c\u3067\u8003\u3048\u307e\u3059\u3002<\/p>\n

\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7406\u89e3\u3059\u308b\u3001\u3068\u3044\u3046\u30d5\u30a7\u30fc\u30ba\u304b\u3089\u4e00\u6b69\u9032\u307f\u307e\u3057\u305f\u3002
\n\u306f\u305f\u3057\u3066\u3001\u66f8\u3051\u308b\u306e\u304b\u3002\u3002\u3002\uff08\u306a\u305c\u3053\u3093\u306a\u306b\u3082\u81ea\u4fe1\u304c\u306a\u3044\u306e\u304b\u3002\u3002\u3002\uff09<\/p>\n<\/div>\n<\/div><\/div>

\uff11\uff0e \u65b0\u898f\u30ef\u30fc\u30af\u30b9\u30da\u30fc\u30b9\u3092\u4f5c\u6210<\/h3>\n
\n\t

\u307e\u305a\u3001\u65b0\u898f\u30ef\u30fc\u30af\u30b9\u30da\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u3053\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u306e\u901a\u308a\u3067\u3059\u306e\u3067\u3001\u4eca\u56de\u306f\u5272\u611b\u3057\u307e\u3059\u3002<\/p>\n

https:\/\/note.com\/kmc715\/n\/n3b503a948df5?magazine_key=m76fc246deaa1<\/a><\/p>\n

\"\"<\/a><\/p>\n

lib.rs\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u3044\u304f\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002<\/p>\n

func1() \u306fslo_main()\u306b\u540d\u79f0\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

\uff12\uff0eCargo.toml\u306b\u4f9d\u5b58\u95a2\u4fc2\u3092\u8a18\u8ff0<\/h3>\n
\n\t

\u3053\u3061\u3089\u306e\u8a18\u4e8b\u306e\u9014\u4e2d\u3067\u3082\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u304c\u3001Cargo.toml\u306b\u4f9d\u5b58\u95a2\u4fc2\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n

https:\/\/note.com\/kmc715\/n\/n3b503a948df5?magazine_key=m76fc246deaa1<\/a><\/p>\n

 <\/p>\n

\u4ee5\u524d\u3068\u540c\u69d8\u3001Cargo\u30d1\u30c3\u30b1\u30fc\u30b8\u300cbcm2711_pac\u300d\u306b\u542b\u307e\u308c\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u30af\u30ec\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3001\u3068\u8a18\u8ff0\u3057\u307e\u3059\u3002
\nbcm2711_pac\u306f\u3001\u4ee5\u524dgit\u3067\u624b\u52d5\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u4e8b\u304c\u3042\u308b\u306e\u3067\u3001\u65e2\u306b\u81ea\u5206\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4e2d\u306b\u3042\u308a\u307e\u3059\u3002
\n\u4eca\u56de\u306f\u305d\u3061\u3089\u3092\u4f7f\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u3082\u3061\u308d\u3093\u3001\u524d\u56de\u540c\u69d8\u3001git\u304b\u3089\u81ea\u52d5\u7684\u306b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u60f3\u5b9a\u3067\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

Cargo.toml\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\n
[package]\nname = \"rust_spi_lib\"\nversion = \"0.1.0\"\nedition = \"2021\"\n\n# See more keys and their definitions at https:\/\/doc.rust-lang.org\/cargo\/reference\/manifest.html\n\n[dependencies]\ntock-registers = \"0.7.0\"\nitron = { version = \"= 0.1.9\", features = [\"unstable\", \"nightly\", \"solid_fmp3\"] }\nbcm2711_pac.path = \"..\/..\/bcm2711_pac\"\n#bcm2711_pac = { git = \"https:\/\/github.com\/KyotoMicrocomputer\/solid-rapi4-examples.git\" }\n\n[lib]\ncrate-type = [\"staticlib\"]\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div><\/div>
\uff13\uff0e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/h3>\n
\n\t
\u7aef\u5b50\u6a5f\u80fd\u306e\u8a2d\u5b9a\u304b\u3089SPI\u9001\u4fe1\u90e8\u307e\u3067\u3001\u5b9f\u6a5f\u30c7\u30d0\u30c3\u30b0\u306f\u884c\u308f\u306a\u3044\u3053\u3068\u306b\u3057\u307e\u3059\u3002
\n\u9001\u4fe1\u90e8\u307e\u3067\u66f8\u3044\u3066\u30d3\u30eb\u30c9\u304c\u901a\u3063\u305f\u5f8c\u3001\u30c7\u30d0\u30c3\u30b0\u3067\u3069\u308c\u304f\u3089\u3044\u6642\u9593\u3092\u6d88\u8cbb\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u304b\u3092\u5b9f\u9a13\u3057\u3066\u307f\u308b\u305f\u3081\u3001\u3067\u3059\u3002<\/p>\n
\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3059\u308b\u306b\u3042\u305f\u308a\u3001\u53c2\u8003\u306b\u3057\u305f\u8cc7\u6599\u306f\u3001BCM2711\u306eperipheral manual \u3067\u3059\u3002https:\/\/datasheets.raspberrypi.com\/bcm2711\/bcm2711-peripherals.pdf<\/p>\n
\u305d\u308c\u3068\u3001\u52a0\u901f\u5ea6\u30bb\u30f3\u30b5ADXL345\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u3067\u3059\u3002
\nhttps:\/\/akizukidenshi.com\/download\/ds\/freescale\/ADXL345_jp.pdf<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u884c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
3.1 \u7aef\u5b50\u6a5f\u80fd\u306e\u8a2d\u5b9a<\/h3>\n
\u307e\u305a\u3001GPIO8,9,10,11\u306e\u5404\u7aef\u5b50\u3092SPI\u7aef\u5b50\u3068\u3057\u3066\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002
\n\u5177\u4f53\u7684\u306b\u306f\u3001GPFSEL \u30ec\u30b8\u30b9\u30bf\u306eGPIO8,9,10,11\u7528\u306eALT0\u306b\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
BCM2711\u30c1\u30c3\u30d7\u306e\u5185\u8535I\/O\u3067\u3042\u308bGPFSEL0, 1\u30ec\u30b8\u30b9\u30bf\u306b\u3001GPIO8,9,10,11\u306e\u7aef\u5b50\u6a5f\u80fd\u3092\u8a2d\u5b9a\u3059\u308b\u30d3\u30c3\u30c8\u304c\u3042\u308a\u3001\u305d\u308c\u3092\u300cALT0\u300d\u306b\u3059\u308b\u3001\u3068\u3044\u3046\u64cd\u4f5c\u3092\u3057\u307e\u3059\u3002<\/p>\n
\u5177\u4f53\u7684\u306b\u306f\u3001GPFSEL\u30ec\u30b8\u30b9\u30bf\u304c\u6301\u3063\u3066\u3044\u308b\u7aef\u5b50\u6a5f\u80fd\u8a2d\u5b9a\u30d3\u30c3\u30c8\u3092\u5909\u66f4\u3057\u3001GPIO8,9,10,11\u306e\u6a5f\u80fd\u30920b100(ALT0)\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u64cd\u4f5c\u3092\u3059\u308b\u90e8\u5206\u306f\u3001spi_gpio_control\u3068\u3044\u3046\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u3057\u3001init()\u95a2\u6570\u3092\u30d1\u30d6\u30ea\u30c3\u30af\u3067\u5ba3\u8a00\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u2460\u307e\u305a\u6700\u521d\u306b\u3001\u30ec\u30b8\u30b9\u30bf\u30ea\u30fc\u30c9\u30e9\u30a4\u30c8\u3092\u884c\u3046\u305f\u3081\u306egpio_regs\u95a2\u6570\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u3002
\n\u3053\u308c\u306f\u3001\u4eca\u307e\u3067\u53c2\u8003\u306b\u3057\u3066\u3044\u305fLED\u70b9\u6ec5\u30b5\u30f3\u30d7\u30eb\u304b\u3089\u305d\u306e\u307e\u307e\u6301\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n
\n
mod spi_gpio_control {\n   use bcm2711_pac::gpio;\n   use tock_registers::interfaces::{ReadWriteable, Writeable}; \/\/\u5f8c\u3067\u6d88\u3059\n\n      fn gpio_regs() -> &'static gpio::Registers {\n      \/\/ Safety: SOLID for RaPi4B provides an identity mapping in this area, and we don't alter\n      \/\/ the mapping\n         unsafe { &*(gpio::BASE.to_arm_pa().unwrap() as usize as *const gpio::Registers) }\n      }\n<\/code><\/pre>\n<\/div>\n
\u2461\u6b21\u306b\u3001init\u95a2\u6570\u3092\u4f5c\u6210\u3057\u3001\u307e\u305a\u306fGPFSEL\u30ec\u30b8\u30b9\u30bf\u3092\u64cd\u4f5c\u3057GPIO8\u306e\u7aef\u5b50\u6a5f\u80fd\u3092\u300cALT0\u300d\u306b\u3059\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u307e\u3059\u3002
\n\u4eca\u307e\u3067\u53c2\u8003\u306b\u3057\u3066\u3044\u305fLED\u70b9\u6ec5\u30b5\u30f3\u30d7\u30eb\u3092\u53c2\u7167\u3057\u3066\u66f8\u304d\u65b9\u3092\u5b66\u3073\u3001bcm2711_pac\u306egpio.rs\u3092\u898b\u3066\u30d3\u30c3\u30c8\u540d\u7b49\u306e\u60c5\u5831\u3092\u5f97\u307e\u3057\u305f\u3002<\/p>\n
\n
pub fn init() {\n\tconst GPIO_NUM8: usize = 8;\n\n\t\/\/GPIO8,9,10,11\u306e\u7aef\u5b50\u6a5f\u80fd\u3092ALT0\u306b\u8a2d\u5b9a\n        gpio_regs().gpfsel[GPIO_NUM8 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n            gpio::GPFSEL::pin(GPIO_NUM8 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n        );\n    }\n<\/code><\/pre>\n<\/div>\n
\u3053\u3053\u3067\u30d3\u30eb\u30c9\u3092\u901a\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u3001\u30d3\u30eb\u30c9\u304c\u901a\u308a\u307e\u3057\u305f\uff01
\n\u306a\u306e\u3067\u3001GPIO9,10,11\u306b\u5bfe\u3057\u3066\u3082\u540c\u69d8\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\n
pub fn init() {\n\tconst GPIO_NUM8: usize = 8;\n\tconst GPIO_NUM9: usize = 9;\n\tconst GPIO_NUM10: usize = 10;\n\tconst GPIO_NUM11: usize = 11;\n\u00a0\n\t\/\/GPIO8,9,10,11\u306e\u7aef\u5b50\u6a5f\u80fd\u3092ALT0\u306b\u8a2d\u5b9a\n\tgpio_regs().gpfsel[GPIO_NUM8 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n\tgpio::GPFSEL::pin(GPIO_NUM8 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n\t);\n\tgpio_regs().gpfsel[GPIO_NUM9 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n\tgpio::GPFSEL::pin(GPIO_NUM9 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n\t);\n\tgpio_regs().gpfsel[GPIO_NUM10 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n\tgpio::GPFSEL::pin(GPIO_NUM10 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n\t);\n\tgpio_regs().gpfsel[GPIO_NUM11 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n\tgpio::GPFSEL::pin(GPIO_NUM11 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n\t);\n    }\n<\/code><\/pre>\n<\/div>\n
\u5ff5\u306e\u305f\u3081\u306b\u518d\u5ea6\u30d3\u30eb\u30c9\u3057\u3001\u30d3\u30eb\u30c9\u304c\u901a\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n
 <\/p>\n
3.2 SPI\u30ec\u30b8\u30b9\u30bf\u306e\u521d\u671f\u8a2d\u5b9a<\/h3>\n
\u610f\u5916\u3068\u3059\u3093\u306a\u308a\u3068GPIO\u7aef\u5b50\u8a2d\u5b9a\u51e6\u7406\u3092\u66f8\u3051\u307e\u3057\u305f\u3002
\n\u6b21\u3001SPI\u30ec\u30b8\u30b9\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u307f\u307e\u3059\u3002
\n\u5272\u308a\u8fbc\u307f\u306f\u4f7f\u308f\u305a\u3001SPI\u306e\u9001\u4fe1\u30fb\u53d7\u4fe1\u6e08\u30d3\u30c3\u30c8\u306e\u30dd\u30fc\u30ea\u30f3\u30b0\u3067\u3059\u3002<\/p>\n
\u521d\u671f\u8a2d\u5b9a\u3068\u3057\u3066\u306f\u3001
\n\u30fbSPI\u306eCLK\u30ec\u30b8\u30b9\u30bf\u306bSPI\u5468\u6ce2\u6570\u3092\u8a2d\u5b9a
\n\u30fbCS\u30ec\u30b8\u30b9\u30bf\u3067SPI0_CS0#\u3092\u9078\u629e
\n\u30fbCPOL, CPHA\u30ec\u30b8\u30b9\u30bf\u3092\u52a0\u901f\u5ea6\u30bb\u30f3\u30b5ADXL345\u306e\u4ed5\u69d8\u306b\u5408\u308f\u305b\u3066\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
spi_control\u3068\u3044\u3046\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f5c\u3063\u3066\u3001SPI\u95a2\u9023\u306e\u5236\u5fa1\u3092\u884c\u3046\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u2460\u5148\u7a0b\u306espi_gpio_control\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u6642\u3068\u540c\u69d8\u3001\u30ec\u30b8\u30b9\u30bf\u30ea\u30fc\u30c9\u30e9\u30a4\u30c8\u3092\u884c\u3046\u305f\u3081\u306e\u95a2\u6570\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u95a2\u6570\u540d\u306fspi_reg\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n
\n
mod spi_control {\n\tuse itron::{task::delay, time::duration};\n    use bcm2711_pac::spi;\n        use tock_registers::interfaces::{ ReadWriteable, Writeable};\n\n\tfn spi_regs() -> &'static spi::Registers {\n        \/\/ Safety: SOLID for RaPi4B provides an identity mapping in this area, and we don't alter\n        \/\/ the mapping\n        unsafe { &*(spi::BASE_SPI0.to_arm_pa().unwrap() as usize as *const spi::Registers) }\n    }\n<\/code><\/pre>\n<\/div>\n
bcm2711_pac\u306espi.rs\u3092\u898b\u305f\u3068\u3053\u308d\u3001gpio\u3068\u540c\u3058\u3088\u3046\u306b\u30ec\u30b8\u30b9\u30bf\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u305d\u3046\u306a\u306e\u3067\u3001gpio\u306e\u3068\u3053\u308d\u3092spi\u3068\u5909\u3048\u305f\u3060\u3051\u3001\u306e\u3088\u3046\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n
\u5185\u8535I\/O\u306e\u30ec\u30b8\u30b9\u30bf\u30a2\u30af\u30bb\u30b9\u306f\u3001\u3053\u3046\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u3067\u8a18\u8ff0\u304c\u3067\u304d\u305d\u3046\u3067\u3059\u3002<\/p>\n
\u2461\u6b21\u306b\u3001init\u95a2\u6570\u3092\u4f5c\u6210\u3057\u3001\u307e\u305a\u306fCLK\u30ec\u30b8\u30b9\u30bf\u3092\u64cd\u4f5c\u3057\u3001\u8a2d\u5b9a\u50240x00cb\u3092\u66f8\u304f\u51e6\u7406\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\n
mod spi_control {\n\tpub fn init() {\n\t\tconst CLKSET: u32 = 0x00cb;\n\t\tspi_regs().clk.write(\n                  spi::CLK::CDIV.val(CLKSET) \n               );\n        }\n<\/code><\/pre>\n<\/div>\n
\u3053\u308c\u3067\u30d3\u30eb\u30c9\u304c\u901a\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u5b9f\u306f\u30d3\u30eb\u30c9\u304c\u901a\u308b\u307e\u3067\u3001\u7d06\u4f59\u66f2\u6298\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u7d50\u5c40\u3053\u3046\u3044\u3046\u4e8b\u304b\u3068\u81ea\u5206\u306a\u308a\u306b\u7406\u89e3\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u30fbspi_regs().clk.write(\u3000\u306e\u90e8\u5206\uff1a
\n\u81ea\u5206\u89e3\u91c8\uff1aspi_regs(register_structs\u69cb\u9020\u4f53)\u306eclk\u30e1\u30f3\u30d0\u306b\u66f8\u304d\u8fbc\u307f\u3092\u305b\u3088\u3002<\/p>\n
\u30fbspi::CLK::CDIV.val(CLKSET)\u3000\u306e\u90e8\u5206\uff1a
\n\u81ea\u5206\u89e3\u91c8\uff1a\u66f8\u304d\u8fbc\u3080\u5bfe\u8c61\u306f spi::CLK\u30af\u30e9\u30b9\u306eCDIV\u30e1\u30f3\u30d0\u3067\u3001\u305d\u306e\u5024\u306f .val()\u3067\u64cd\u4f5c\u3059\u308b\u3053\u3068<\/p>\n
\u4f59\u8ac7\u3067\u3059\u304c\u3001SOLID-IDE\u3092\u4f7f\u3046\u3068\u30b3\u30fc\u30c9\u88dc\u5b8c\u304c\u304d\u3063\u3061\u308a\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001\u3068\u3066\u3082\u4f7f\u3044\u3084\u3059\u304b\u3063\u305f\u3067\u3059\u3002<\/p>\n
\"\"<\/a><\/p>\n
\u2462\u6b21\u306b\u3001init\u95a2\u6570\u306bCSCPOL, CPHA\u30ec\u30b8\u30b9\u30bf\u3078\u306e\u8a2d\u5b9a\u51e6\u7406\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002
\n\u4eca\u56de\u306f\u3001write\u3067\u306f\u306a\u304fmodify\u306e\u65b9\u304c\u826f\u3055\u305d\u3046\u3067\u3059\u306e\u3067\u3001\u305d\u3046\u3057\u307e\u3057\u305f\u3002
\n\u5fc5\u8981\u306a\u30d3\u30c3\u30c8\u3060\u3051\u3092\u64cd\u4f5c\u3057\u305f\u3044\u304b\u3089\u3001\u3068\u3044\u3046\u610f\u56f3\u3067\u3059\u3002<\/p>\n
\n
\t\tspi_regs().cs.modify(\n             spi::CS::CS::ChipSelect0,\n        );\n\t\tspi_regs().cs.modify(\n             spi::CS::CPOL::RestStateIsHigh,\n        );\n\t\tspi_regs().cs.modify(\n             spi::CS::CPHA::FirstSclkTransitionAtBeginningOFDataBit,\n        );\n<\/code><\/pre>\n<\/div>\n
\u5148\u7a0b\u306e\u3001\u81ea\u5206\u89e3\u91c8\u3068\u3001\u81ea\u52d5\u88dc\u5b8c\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u96e3\u306a\u304f\u8a18\u8ff0\u3067\u304d\u307e\u3057\u305f\u3002
\n\u30d3\u30eb\u30c9\u3057\u3001\u30d3\u30eb\u30c9\u304c\u901a\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n
3.3 SPI\u9001\u4fe1\u90e8\u306e\u5b9f\u88c5<\/h3>\n
\u6b21\u306b\u3001SPI\u30ec\u30b8\u30b9\u30bf\u3092\u64cd\u4f5c\u3057SPI\u9001\u4fe1\u3092\u884c\u3046\u51e6\u7406\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3059\u3002
\n\u5272\u308a\u8fbc\u307f\u306f\u4f7f\u308f\u305a\u3001SPI\u306e\u9001\u4fe1\u6e08\u30d3\u30c3\u30c8\u306e\u30dd\u30fc\u30ea\u30f3\u30b0\u3067\u3059\u3002
\n\u52a0\u901f\u5ea6\u30bb\u30f3\u30b5\u5074\u306e\u30ec\u30b8\u30b9\u30bf\u30a2\u30c9\u30ec\u30b90x2c\u306b\u5bfe\u3057\u3001\u30c7\u30fc\u30bf0x0b\u3092\u66f8\u304d\u8fbc\u3093\u3067\u307f\u307e\u3059\u3002<\/p>\n
\u9001\u4fe1\u306e\u30d5\u30ed\u30fc\u306f\u4ee5\u4e0b\u3067\u3059\u3002<\/p>\n
\u203b1\/31\u8ffd\u8a18\uff1a\u4ee5\u4e0b\u306e\u30d5\u30ed\u30fc\u306f\u4e00\u90e8\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002\u7b2c\uff11\uff13\u56de<\/a>\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u2460CS\u30ec\u30b8\u30b9\u30bf\u306eTA\u30d3\u30c3\u30c8\u30921\u306b\u3059\u308b\u3002
\n\u2461FIFO\u306b\u9001\u4fe1\u30c7\u30fc\u30bf\u3092\u66f8\u304f\uff08\u9001\u4fe1\u30c7\u30fc\u30bf\uff1a\u30e9\u30a4\u30c8\u5bfe\u8c61\u306e\u52a0\u901f\u5ea6\u30bb\u30f3\u30b5\u306e\u30ec\u30b8\u30b9\u30bf\u5024\u201d0x2c\u201d\uff09
\n\u2462CS\u30ec\u30b8\u30b9\u30bf\u306eTXD\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064
\n\uff08\u5f85\u3064\u51e6\u7406\u306e\u524d\u306b5us\u307b\u3069\u30a6\u30a8\u30a4\u30c8\u3092\u5165\u308c\u308b\u3002\u305d\u3082\u305d\u30820\u306b\u306a\u308b\u524d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3002\u30a6\u30a8\u30a4\u30c8\u5024\u306f\u5f8c\u3067\u898b\u76f4\u3059\u3002\uff09
\n\u2463CS\u30ec\u30b8\u30b9\u30bf\u306eCLEAR\u30d3\u30c3\u30c8\u306b0x01\u3092\u66f8\u3044\u3066FIFO\u30af\u30ea\u30a2
\n\u2464FIFO\u306b\u9001\u4fe1\u30c7\u30fc\u30bf\u3092\u66f8\u304f\uff08\u9001\u4fe1\u30c7\u30fc\u30bf\uff1a\u5148\u307b\u3069\u306e\u30ec\u30b8\u30b9\u30bf\u3078\u306e\u30e9\u30a4\u30c8\u5024\u201d0x0b\u201d\uff09
\n\u2465CS\u30ec\u30b8\u30b9\u30bf\u306eTXD\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064
\n\uff08\u5f85\u3064\u51e6\u7406\u306e\u524d\u306b5us\u307b\u3069\u30a6\u30a8\u30a4\u30c8\u3092\u5165\u308c\u308b\u3002\u305d\u3082\u305d\u30820\u306b\u306a\u308b\u524d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3002\u30a6\u30a8\u30a4\u30c8\u5024\u306f\u5f8c\u3067\u898b\u76f4\u3059\u3002\uff09
\n\u2466CS\u30ec\u30b8\u30b9\u30bf\u306eCLEAR\u30d3\u30c3\u30c8\u306b0x01\u3092\u66f8\u3044\u3066FIFO\u30af\u30ea\u30a2
\n\u2467CS\u30ec\u30b8\u30b9\u30bf\u306eDONE\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064
\n\u2468CS\u30ec\u30b8\u30b9\u30bf\u306eTA\u30d3\u30c3\u30c8\u30920\u306b\u3057\u3066\u9001\u4fe1\u5b8c\u4e86\u3002<\/p>\n
\u2460\u3068\u2461\u306f\u3001\u5148\u7a0b\u306e\u81ea\u5206\u89e3\u91c8\u3068\u81ea\u52d5\u88dc\u5b8c\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u96e3\u306a\u304f\u8a18\u8ff0\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u304c\u3001\u2462\u306b\u3064\u3044\u3066\u3002<\/p>\n
\u5f85\u3064\u65b9\u6cd5\u3063\u3066\u3069\u3046\u3084\u3063\u3066\u66f8\u3044\u305f\u3089\u3044\u3044\u306e\u3060\u308d\u3046\u304b\u3002\u3002\u3002<\/p>\n
\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u306e\u3092\u5f85\u3064\u305f\u3081\u306e\u8a18\u8ff0\u3092\u77e5\u308b\u305f\u3081\u306b\u3001tock_registers\u306e\u30ec\u30b8\u30b9\u30bf\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u8abf\u3079\u307e\u3057\u305f\u3002<\/p>\n
https:\/\/github.com\/tock\/tock\/tree\/tock-registers-v0.8\/libraries\/tock-register-interface#register-interface-summary<\/a><\/p>\n
ReadOnly\u90e8\u306b\u3001is_set\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u4f7f\u3048\u305d\u3046\u3067\u3059\u3002<\/p>\n
is_set\u3092\u4f7f\u3046\u305f\u3081\u306b\u3001use\u5ba3\u8a00\u306e\u90e8\u5206\u306bReadable\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002
\nuse tock_registers::interfaces::{Readable, ReadWriteable, Writeable};
\n\u305d\u3057\u3066\u3001\uff23\u8a00\u8a9e\u306e\u6642\u306e\u540c\u3058\u3088\u3046\u306a\u611f\u3058\u3067while\u6587\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n
\n
mod spi_control {\n\t\tlet mut retval = false;\n\t\twhile retval == false\n\t\t{\n\t\t\tretval = spi_regs().cs.is_set(\n\t\t\tspi::CS::TXD\n\t\t\t);\n\t\t}\n<\/code><\/pre>\n<\/div>\n
\u3053\u308c\u3067\u30d3\u30eb\u30c9\u304c\u901a\u308a\u307e\u3057\u305f\u3002
\n\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u9001\u4fe1\u90e8\u5206\u306f\u5b8c\u6210\u3057\u3001\u5168\u90e8\u30d3\u30eb\u30c9\u304c\u901a\u308a\u307e\u3057\u305f\uff01<\/p>\n<\/div>\n<\/div><\/div>
\uff14\uff0e\u30c7\u30d0\u30c3\u30b0<\/h3>\n
\n\t
\u3053\u3053\u304b\u3089\u3001\u5404\u30ec\u30b8\u30b9\u30bf\u3078\u306e\u8a2d\u5b9a\u5024\u304c\u6b63\u3057\u3044\u304b\u3069\u3046\u304b\u3001\u30c7\u30d0\u30c3\u30b0\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
\u307e\u305a\u3001GPIO\u3002
\n\u5185\u8535I\/O\u306e\u30ec\u30b8\u30b9\u30bf\u306e\u5024\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30e1\u30e2\u30ea\u30a6\u30a4\u30f3\u30c9\u30a6\u306f\u304a\u52e7\u3081\u3057\u307e\u305b\u3093\u3002
\n\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u30a2\u30af\u30bb\u30b9\u5e45\u3067\u30a2\u30af\u30bb\u30b9\u3057\u306a\u3044\u3068\u3001\u30e1\u30e2\u30ea\u5185\u5bb9\u304c\u6b63\u3057\u304f\u8aad\u3081\u306a\u3044\u305f\u3081\u3001\u3067\u3059\u3002<\/p>\n
SOLID-IDE\u30e1\u30cb\u30e5\u30fc\u304b\u3089
\n[\u30c7\u30d0\u30c3\u30b0]-[PATNER\u30b3\u30de\u30f3\u30c9\u30a6\u30a4\u30f3\u30c9\u30a6]\u3092\u9078\u3093\u3067\u8868\u793a\u3055\u308c\u308b\u30a6\u30a4\u30f3\u30c9\u30a6\u304b\u3089\u3001\u5c02\u7528\u306e\u30b3\u30de\u30f3\u30c9\u3092\u767a\u884c\u3057\u307e\u3059\u3002<\/p>\n
\u5c02\u7528\u306e\u30b3\u30de\u30f3\u30c9\uff1aPI\/PO (Peripheral Input\/ Peripheral Output)) \u30b3\u30de\u30f3\u30c9<\/p>\n
\u30b3\u30de\u30f3\u30c9\u306e\uff13\u6587\u5b57\u76ee\u304c\u30a2\u30af\u30bb\u30b9\u5e45\u3067\u3001b:8bit, w:16bit, d:32bit, q:64bit\u3000\u3067\u3059\u3002<\/p>\n
\u2460GPFSEL0(\u30a2\u30c9\u30ec\u30b90xfe200000), GPFSEL1(\u30a2\u30c9\u30ec\u30b90xfe200004)\u306e\u78ba\u8a8d
\nGPFSEL0,1\u30ec\u30b8\u30b9\u30bf\u306b\u66f8\u304d\u8fbc\u3080\u524d\u306f\u4ee5\u4e0b\u3002<\/p>\n
\"\"<\/a><\/p>\n
GPFSEL0,1\u30ec\u30b8\u30b9\u30bf\u306b\u66f8\u304d\u8fbc\u3093\u3060\u5f8c\u3002<\/p>\n
\"\"<\/p>\n
\u66f8\u3051\u3066\u307e\u3057\u305f\uff01<\/p>\n
\u3058\u3083\u3001\u3082\u3046\u3044\u3044\u304b\u306a\uff1f
\n\u4e00\u6c17\u306b\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u6ce2\u5f62\u3092\u898b\u3066\u307f\u3066\u3001SDA\u3084SDD\u7aef\u5b50\u3001CS\u7aef\u5b50\u3001CLK\u304c\u53cd\u5fdc\u3057\u3066\u3044\u308c\u3070\uff2f\uff2b\u3002<\/p>\n
\"\"<\/a><\/p>\n
\u898b\u305f\u3068\u3053\u308d\u3001\u60f3\u5b9a\u901a\u308a\u51fa\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u203b1\/27\u8ffd\u8a18\uff1aSDD\u7aef\u5b50\u304c\u30ed\u30b8\u30c3\u30af\u30a2\u30ca\u30e9\u30a4\u30b6\u304b\u3089\u5916\u308c\u3066\u3044\u307e\u3057\u305f\u3002
\n\u672c\u6765\u3001\u53d7\u4fe1\u5074\u3082\u4f55\u304b\u4fe1\u53f7\u306b\u53cd\u5fdc\u306f\u3042\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n
\u306a\u3093\u3068\u3001\u30c7\u30d0\u30c3\u30b0\u306e\u521d\u56de\u3067\u52d5\u304d\u307e\u3057\u305f\uff01<\/p>\n
\u3044\u3064\u3082\u3060\u3044\u305f\u3044\u3001\u30dd\u30a4\u30f3\u30bf\u306e\u4e2d\u8eab\u306a\u306e\u304b\u30a2\u30c9\u30ec\u30b9\u306a\u306e\u304b\u3054\u3063\u3061\u3083\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3001\u304a\u304b\u3057\u306a\u30e1\u30e2\u30ea\u3092\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3057\u307e\u3046\u3001\u3068\u3044\u3046\u3001\u521d\u6b69\u7684\u306a\u9593\u9055\u3044\u304c\u4ed8\u304d\u3082\u306e\u3060\u3063\u305f\u306e\u306b\uff01
\n\u30dd\u30a4\u30f3\u30bf\u3001\u3068\u3044\u3046\u6982\u5ff5\u304b\u3089\u89e3\u304d\u653e\u305f\u308c\u305f\u3060\u3051\u3067\u3082\u3001\u3053\u308c\u3060\u3051\u30b9\u30c8\u30ec\u30b9\u304c\u306a\u3044\u3068\u306f\u3002\u3002\u3002<\/p>\n
 <\/p>\n
\u3061\u306a\u307f\u306bCS\u30ec\u30b8\u30b9\u30bf\u306eTXD\u30d3\u30c3\u30c8\u30c1\u30a7\u30c3\u30af\u306e\u524d\u306e\u30a6\u30a8\u30a4\u30c8\u51e6\u7406\u3092\u524a\u9664\u3059\u308b\u3068\u3001\u60f3\u5b9a\u901a\u308a\u306e\u6ce2\u5f62\u306b\u306a\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u591a\u5c11\u306e\u30a6\u30a8\u30a4\u30c8\u306f\u5fc5\u8981\u305d\u3046\u3067\u3059\u3002<\/p>\n
 <\/p>\n<\/div>\n<\/div><\/div>
\uff15\uff0e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h3>\n
\n\t
\u3068\u3044\u3046\u4e8b\u3067\u3001lib.rs\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
 <\/p>\n
\n
\n#[no_mangle]\npub extern \"C\" fn slo_main() {\n\tprintln!(\"Starting SPI control.\");\n\n\tspi_gpio_control::init();\n\tspi_control::init();\n\tspi_control::senddata();\n\n}\n\nmod spi_gpio_control {\n    use bcm2711_pac::gpio;\n    use tock_registers::interfaces::{ReadWriteable, Writeable};\n\n\tfn gpio_regs() -> &'static gpio::Registers {\n        \/\/ Safety: SOLID for RaPi4B provides an identity mapping in this area, and we don't alter\n        \/\/ the mapping\n        unsafe { &*(gpio::BASE.to_arm_pa().unwrap() as usize as *const gpio::Registers) }\n    }\n\n\t pub fn init() {\n\t\tconst GPIO_NUM8: usize = 8;\n\t\tconst GPIO_NUM9: usize = 9;\n\t\tconst GPIO_NUM10: usize = 10;\n\t\tconst GPIO_NUM11: usize = 11;\n\n\t\t \/\/GPIO8,9,10,11\u306e\u7aef\u5b50\u6a5f\u80fd\u3092ALT0\u306b\u8a2d\u5b9a\n        gpio_regs().gpfsel[GPIO_NUM8 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n            gpio::GPFSEL::pin(GPIO_NUM8 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n        );\n        gpio_regs().gpfsel[GPIO_NUM9 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n            gpio::GPFSEL::pin(GPIO_NUM9 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n        );\n        gpio_regs().gpfsel[GPIO_NUM10 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n            gpio::GPFSEL::pin(GPIO_NUM10 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n        );\n        gpio_regs().gpfsel[GPIO_NUM11 \/ gpio::GPFSEL::PINS_PER_REGISTER].modify(\n            gpio::GPFSEL::pin(GPIO_NUM11 % gpio::GPFSEL::PINS_PER_REGISTER).val(gpio::GPFSEL::ALT0),\n        );\n    }\n}\n\nmod spi_control {\n\tuse itron::{task::delay, time::duration};\n    use bcm2711_pac::spi;\n        use tock_registers::interfaces::{Readable, ReadWriteable, Writeable}; \n\n\tfn spi_regs() -> &'static spi::Registers {\n        \/\/ Safety: SOLID for RaPi4B provides an identity mapping in this area, and we don't alter\n        \/\/ the mapping\n        unsafe { &*(spi::BASE_SPI0.to_arm_pa().unwrap() as usize as *const spi::Registers) }\n    }\n\n\tpub fn init() {\n\t\tconst CLKSET: u32 = 0x00cb;\n\n\t\t \/\/SPI\u306eCLK\u30ec\u30b8\u30b9\u30bf\u306bSPI\u5468\u6ce2\u6570\u3092\u8a2d\u5b9a\n\t\tspi_regs().clk.write(\n             spi::CLK::CDIV.val(CLKSET) \n        );\n\n\t\t\/\/CS : 00 = Chip select 0  -> CS.bit0 and 1\n\t\t\/\/CPOL: Clock Polarity 1 = Rest state of clock = High -> CS.bit3\n\t\t\/\/CPHA: Clock Phase 1 = First SCLK transition at beginning of data bit. -> CS.bit2\n\t\tspi_regs().cs.modify(\n             \u3000\u3000\u3000spi::CS::CS::ChipSelect0,\n      \u3000\u3000\u3000\u3000\u3000  );\n\t\tspi_regs().cs.modify(\n            \u3000\u3000\u3000 spi::CS::CPOL::RestStateIsHigh,\n       \u3000\u3000\u3000\u3000\u3000 );\n\t\tspi_regs().cs.modify(\n            \u3000\u3000\u3000 spi::CS::CPHA::FirstSclkTransitionAtBeginningOFDataBit,\n       \u3000\u3000\u3000\u3000\u3000 );\n\t}\n\n\tpub fn senddata() {\n\t\tconst CS_TA_ACTIVE: u32 = 1;\n\t\tconst CS_TA_INACTIVE: u32 = 0;\n\n        \/\/\u2460CS\u30ec\u30b8\u30b9\u30bf\u306eTA\u30d3\u30c3\u30c8\u30921\u306b\u3059\u308b\u3002\n\t\tspi_regs().cs.modify(\n            \u3000\u3000\u3000spi::CS::TA.val(CS_TA_ACTIVE),\n        \u3000\u3000\u3000\u3000);\n\n\t\t\/\/\u2461FIFO\u306b\u9001\u4fe1\u30c7\u30fc\u30bf\u3092\u66f8\u304f\uff08\u9001\u4fe1\u30c7\u30fc\u30bf\uff1a\u30e9\u30a4\u30c8\u5bfe\u8c61\u306e\u52a0\u901f\u5ea6\u30bb\u30f3\u30b5\u306e\u30ec\u30b8\u30b9\u30bf\u5024; \u3068\u308a\u3042\u3048\u305a0x2c\u3068\u56fa\u5b9a\u3057\u3066\u304a\u304f\u3002\uff09\n\t\tspi_regs().fifo.write(\n         \u3000\u3000\u3000   spi::FIFO::DATA.val(0x2C),\n       \u3000\u3000\u3000\u3000 );\n\n\t\t\/\/\u2462CS\u30ec\u30b8\u30b9\u30bf\u306eTXD\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064\u3000\u5f85\u3064\u524d\u306b\u3061\u3087\u3063\u3068\u30a6\u30a8\u30a4\u30c8\n\t\tdelay(duration!(us: 5)).unwrap();\n\n\t\tlet mut retval = false;\n\t\twhile retval == false\n\t\t{\n\t\t\tretval = spi_regs().cs.is_set(\n\t\t\tspi::CS::TXD\n\t\t\t);\n\t\t}\n\n\t\t\/\/\u2463CS\u30ec\u30b8\u30b9\u30bf\u306eCLEAR\u30d3\u30c3\u30c8\u306b0x01\u3092\u66f8\u3044\u3066FIFO\u30af\u30ea\u30a2\n\t\tspi_regs().cs.modify(\n            \u3000\u3000\u3000spi::CS::CLEAR_TX.val(0x01),\n       \u3000\u3000\u3000\u3000 );\n\n\t\t\/\/\u2464FIFO\u306b\u9001\u4fe1\u30c7\u30fc\u30bf\u3092\u66f8\u304f\uff08\u9001\u4fe1\u30c7\u30fc\u30bf\uff1a\u5148\u307b\u3069\u306e\u30ec\u30b8\u30b9\u30bf\u3078\u306e\u30e9\u30a4\u30c8\u5024\uff09\n\t\tspi_regs().fifo.write(\n          \u3000\u3000\u3000  spi::FIFO::DATA.val(0x0b),\n        \u3000\u3000\u3000\u3000);\n\n\t\t\/\/\u2465CS\u30ec\u30b8\u30b9\u30bf\u306eTXD\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064 \u5f85\u3064\u524d\u306b\u3061\u3087\u3063\u3068\u30a6\u30a8\u30a4\u30c8\n\t\tdelay(duration!(us: 5)).unwrap();\n\t\tlet mut retval = false;\n\t\twhile retval == false\n\t\t{\n\t\t\tretval = spi_regs().cs.is_set(\n\t\t\tspi::CS::TXD\n\t\t\t);\n\t\t}\n\n\t\t\/\/\u2466CS\u30ec\u30b8\u30b9\u30bf\u306eCLEAR\u30d3\u30c3\u30c8\u306b0x01\u3092\u66f8\u3044\u3066FIFO\u30af\u30ea\u30a2\n\t\tspi_regs().cs.modify(\n           \u3000\u3000\u3000 spi::CS::CLEAR_TX.val(0x01),\n       \u3000\u3000\u3000\u3000 );\n\n\t\t\/\/\u2467CS\u30ec\u30b8\u30b9\u30bf\u306eDONE\u30d3\u30c3\u30c8\u304c1\u306b\u306a\u308b\u307e\u3067\u5f85\u3064\n\t\tlet mut retval = false;\n\t\twhile retval == false\n\t\t{\n\t\t\tretval = spi_regs().cs.is_set(\n\t\t\tspi::CS::DONE\n\t\t\t);\n\t\t}\n\n\t\t\/\/\u2468CS\u30ec\u30b8\u30b9\u30bf\u306eTA\u30d3\u30c3\u30c8\u30920\u306b\u3057\u3066\u9001\u4fe1\u5b8c\u4e86\u3002\n\t\tspi_regs().cs.modify(\n            \u3000\u3000\u3000spi::CS::TA.val(CS_TA_INACTIVE),\n        \u3000\u3000\u3000\u3000);\n\t}\n}\n<\/code><\/pre>\n<\/div>\n
\u4eca\u56de\u306f\u3053\u3053\u307e\u3067\u3002
\n\u6b21\u56de\u306fSPI\u53d7\u4fe1\u90e8\u3092\u4f5c\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>
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(2023\/1\/26) \u3044\u3088\u3044\u3088\u3001Rust\u304b\u3089\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u5236\u5fa1\u3057\u3066\u3044\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u81ea\u5206\u3067\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u80fd\u306e\u4e8b\u306f\u5f8c\u3067\u8003\u3048\u307e\u3059\u3002 \u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7406\u89e3\u3059\u308b\u3001\u3068\u3044\u3046\u30d5\u30a7\u30fc\u30ba\u304b\u3089\u4e00\u6b69\u9032\u307f\u307e\u3057\u305f\u3002 \u306f\u305f\u3057\u3066 […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6069","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/posts\/6069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/comments?post=6069"}],"version-history":[{"count":0,"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/posts\/6069\/revisions"}],"wp:attachment":[{"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/media?parent=6069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/categories?post=6069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solid.kmckk.com\/SOLID\/wp-json\/wp\/v2\/tags?post=6069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}