{"id":219,"date":"2017-11-17T12:18:29","date_gmt":"2017-11-17T03:18:29","guid":{"rendered":"http:\/\/tamatoyaku.com\/b\/?p=219"},"modified":"2017-11-17T12:18:29","modified_gmt":"2017-11-17T03:18:29","slug":"219","status":"publish","type":"post","link":"https:\/\/p-0.me\/b\/p\/219\/","title":{"rendered":"PIC24FJ64GB002\u3067SPI\u3092\u4f7f\u3044\u305f\u304b\u3063\u305f\u8a71"},"content":{"rendered":"

\u4f7f\u3044\u305f\u304b\u3063\u305f\u8a71\u3010\u672a\u5b8c\u3011
\n
\n1.\u76ee\u7684
\nTLC5940\u3092PIC\u3067\u6271\u3044\u305f\u3044\uff0eTLC5940\u306f\u30af\u30ed\u30c3\u30af+\u30af\u30ea\u30a2\u4fe1\u53f7\u306e\u5165\u529b+SPI\u304c\u5fc5\u8981\u306b\u306a\u308b\uff0e
\n\u30af\u30ed\u30c3\u30af\uff0b\u30af\u30ea\u30a2\u4fe1\u53f7\u306b\u3064\u3044\u3066\u306f\u524d\u56de<\/a>\u306ePWM\u5236\u5fa1\u3067\u89e3\u6c7a\u3057\u305f\u3082\u306e\u306e\uff0c\u809d\u5fc3\u306eSPI\u304c\u307e\u3060\u3067\u304d\u3066\u3044\u306a\u3044\uff0e
\n\u306e\u3067\uff0c\u3084\u308b\uff0e
\n 
\n2.\u6982\u8981
\nPIC24FJ64GB002\u306f\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067SPI\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\uff0e
\nSPI\u306e\u5229\u7528\u6cd5\u3060\u304c\uff0cMicrochip Application Library<\/a>\u304cSPI\u3092\u6271\u3046\u305f\u3081\u306e\u30c9\u30e9\u30a4\u30d0\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u305f\u3081\uff0c\u305d\u3061\u3089\u3092\u4f7f\u308f\u305b\u3066\u3044\u305f\u3060\u304f\uff0e
\n 
\n3.\u521d\u671f\u8a2d\u5b9a
\nSPI\u306f4\u3064\u307e\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0e\u4eca\u56de\u306f1\u3064\u3060\u3051\u3067\u826f\u3044\u306e\u3067\uff0c
\n#define\u00a0DRV_SPI_CONFIG_CHANNEL_1_ENABLE
\n\u3068\u3059\u308b\u3053\u3068\u3067SPI\u306e\u30c1\u30e3\u30f3\u30cd\u30eb1\u3092\u4f7f\u7528\u53ef\u80fd\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0e
\n\u307e\u305f\uff0c\u62e1\u5f35\u30d0\u30c3\u30d5\u30a1\u30e2\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\uff0e\u62e1\u5f35\u30d0\u30c3\u30d5\u30a1\u30e2\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u6700\u59278\u500b\u306e\u672a\u9001\u4fe1\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3067\u304d\u308b\u3068\u306e\u3053\u3068(\u3053\u3053<\/a>\u306e18.2 SPI\u30ec\u30b8\u30b9\u30bf)\uff0e\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u4f55\u3082\u8a18\u8ff0\u305b\u305a\uff0c\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u306f
\n#define DRV_SPI_CONFIG_ENHANCED_BUFFER_DISABLE
\n\u3068\u8a18\u8ff0\u3059\u308b\uff0e
\n 
\n4.\u521d\u671f\u5316
\n\u521d\u671f\u5316\u306b\u306f
\nDRV_SPI_Initialize(DRV_SPI_INIT_DATA * pData)
\n\u3092\u4f7f\u3046\uff0e\u5f15\u6570\u306eDRV_SPI_INIT_DATA\u306f
\ntypedef struct {
\nuint16_t channel;
\nuint16_t baudRate;
\nuint16_t dummy;
\nuint16_t primaryPrescale;
\nuint16_t secondaryPrescale;
\nuint8_t divider;
\nuint8_t cke;
\nSPI_BUS_MODES spibus_mode;
\nSPI_TRANSFER_MODE mode;
\n} DRV_SPI_INIT_DATA;
\n\u3068\u306a\u3063\u3066\u3044\u308b\uff0e\u5404\u5909\u6570\u306e\u610f\u5473\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e
\n\u30fbuint16_t channel;
\n\u521d\u671f\u5316\u3059\u308b\u30c1\u30e3\u30f3\u30cd\u30eb\u3092\u8868\u3059\uff0e\u4f8b\u3048\u3070\u30c1\u30e3\u30f3\u30cd\u30eb1\u3092\u4f7f\u3044\u305f\u3044\u3068\u304d\u306f1\uff0e
\n\u30fbuint16_t baudRate;
\n\u30dc\u30fc\u30ec\u30fc\u30c8\uff0c\u8ee2\u9001\u901f\u5ea6\u306e\u3053\u3068\uff0e\u306a\u304a\uff0cPIC32\u306e\u8a2d\u5b9a\u3067\u306e\u307f\u4f7f\u7528\u3055\u308c\u308b\uff0e
\n\u30fbuint16_t dummy;
\n\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u66f8\u3044\u3066\u306a\u3044\u3057\u30bd\u30fc\u30b9\u306e\u691c\u7d22\u306b\u304b\u304b\u3089\u306a\u3044\u3057\u5206\u304b\u3089\u306a\u3044\uff0ePIC32\u306e\u8a2d\u5b9a\u3067\u306e\u307f\u4f7f\u7528\u3055\u308c\u308b\uff0e
\n\u30fbuint16_t primaryPrescale;
\nSPIxCON1 \u306ePPRE\u306b\u5bfe\u5fdc\u3059\u308b\uff0e
\n11 = Primary prescale 1:1
\n10 = Primary prescale 4:1
\n01 = Primary prescale 16:1
\n00 = Primary prescale 64:1
\n\u3068\u306a\u308b\uff0e
\n\u30fbuint16_t secondaryPrescale;
\nSPIxCON1 \u306eSPRE\u306b\u5bfe\u5fdc\u3059\u308b\uff0e
\n111 = Secondary prescale 1:1
\n110 = Secondary prescale 2:1
\n…
\n000 = Secondary prescale 8:1
\n\u3068\u306a\u3063\u3066\u3044\u308b\uff0e
\n\u30fbuint8_t divider;
\n\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u66f8\u3044\u3066\u306a\u3044\u3057\u30bd\u30fc\u30b9\u306e\u691c\u7d22\u306b\u304b\u304b\u3089\u306a\u3044\u3057\u5206\u304b\u3089\u306a\u3044\uff0e
\n\u30fbuint8_t cke;
\nCPIxCON1\u306eCKE\u306b\u5bfe\u5fdc\u3059\u308b\uff0e\u30c7\u30fc\u30bf\u3092\u51fa\u529b\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3092\uff0c\u30af\u30ed\u30c3\u30af\u304c\u30a2\u30af\u30c6\u30a3\u30d6\u304b\u3089\u30a2\u30a4\u30c9\u30eb\u306b\u5909\u5316\u3057\u305f\u3068\u304d\u304b\uff0c\u30a2\u30a4\u30c9\u30eb\u304b\u3089\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u5909\u5316\u3057\u305f\u3068\u304d\u304b\u306e\u3069\u3061\u3089\u304b\u3092\u9078\u3076(\u3053\u3053<\/a>\u306ep18-5\u53c2\u7167)\uff0e
\n\u30fbSPI_BUS_MODES spibus_mode;
\nSPIxCON1\u306eCKP\u3068SMP\u306b\u95a2\u308f\u308b\uff0eCKP\u306f1\u306a\u3089High\u30ec\u30d9\u30eb\u3092\u30a2\u30a4\u30c9\u30eb\u72b6\u614b\u3068\u3057\uff0c0\u306a\u3089Low\u30ec\u30d9\u30eb\u3092\u30a2\u30a4\u30c9\u30eb\u72b6\u614b\u3068\u3059\u308b\uff0eSMP\u306f\u30de\u30b9\u30bf\u30fc\u30e2\u30fc\u30c9\u3067\u306e\u307f\u4f7f\u7528\u3059\u308b\uff0e\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u95a2\u308f\u308b\u3082\u306e\u3067\uff0c1\u306a\u3089\u30c7\u30fc\u30bf\u51fa\u529b\u306e\u6700\u5f8c\uff0c0\u306a\u3089\u30c7\u30fc\u30bf\u51fa\u529b\u306e\u4e2d\u9593\u3067\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3092\u884c\u3046\uff0e
\n\u306a\u304a\uff0cSPI_BUS_MODES\u306fenum\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\uff0c<\/p>\n

\n
SPI_BUS_MODE_0\u3067CKP=0,SMP=0<\/div>\n<\/div>\n
\n
SPI_BUS_MODE_1\u3067CKP=0,SMP=1<\/div>\n<\/div>\n
\n
SPI_BUS_MODE_2\u3067CKP=1,SMP=0<\/div>\n<\/div>\n
\n
SPI_BUS_MODE_3\u3067CKP=1,SMP=1<\/div>\n<\/div>\n

\u3068\u306a\u308b\uff0e
\n\u30fbSPI_TRANSFER_MODE mode;
\n\u4f55\u30d0\u30a4\u30c8\u5358\u4f4d\u3067\u901a\u4fe1\u3092\u884c\u3046\u304b\u6c7a\u3081\u308b\uff0eSPI_TRANSFER_MODE\u306fenum\u3067<\/p>\n

\n
SPI_TRANSFER_MODE_32BIT = 2,<\/div>\n
SPI_TRANSFER_MODE_16BIT = 1,<\/div>\n
SPI_TRANSFER_MODE_8BIT = 0<\/div>\n
\u3068\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\uff0e\u306a\u304a\uff0c32\u30d3\u30c3\u30c8\u306e\u8ee2\u9001\u306fPIC32\u3067\u306e\u307f\u4f7f\u7528\u53ef\u80fd\u3067\u3042\u308b.<\/div>\n<\/div>\n
<\/div>\n
\u4ee5\u4e0a\u306e\u3053\u3068\u304b\u3089\uff0c\u4eca\u56de\u4f7f\u7528\u3057\u305f\u3044\u521d\u671f\u5316\u30c7\u30fc\u30bf\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\uff0e<\/div>\n
DRV_SPI_INIT_DATA spiInitData = {1, 3, 7, 0, SPI_BUS_MODE_1, SPI_TRANSFER_MODE_8BIT};<\/div>\n

 
\n5.\u9001\u4fe1
\nvoid DRV_SPI_PutBuffer(uint8_t channel, uint8_t * data, uint16_t count);\u3092\u4f7f\u7528\u3059\u308b\uff0e\u4f7f\u7528\u3059\u308b\u30c1\u30e3\u30f3\u30cd\u30eb\u3068\u30d0\u30c3\u30d5\u30a1\u306e\u30a2\u30c9\u30ec\u30b9\uff0c\u30b5\u30a4\u30ba\u3092\u6e21\u3059\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0e
\n 
\n6.\u53d7\u4fe1
\nvoid DRV_SPI_GetBuffer(uint8_t channel, uint8_t * data, uint16_t count);\u3092\u4f7f\u7528\u3059\u308b\uff0e\u4f7f\u7528\u3059\u308b\u30c1\u30e3\u30f3\u30cd\u30eb\u3068\u53d7\u4fe1\u30d0\u30c3\u30d5\u30a1\u306e\u30a2\u30c9\u30ec\u30b9\uff0c\u53d7\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\u306e\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0e
\n 
\n7.\u7d42\u4e86
\nvoid DRV_SPI_Deinitialize(uint8_t channel);\u3067\u9589\u3058\u308b\u30c1\u30e3\u30f3\u30cd\u30eb\u3092\u4f7f\u7528\u3057\u3066\u9589\u3058\u308b\uff0e
\n 
\n 
\n <\/p>\n","protected":false},"excerpt":{"rendered":"

\u4f7f\u3044\u305f\u304b\u3063\u305f\u8a71\u3010\u672a\u5b8c\u3011<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-219","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/posts\/219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/comments?post=219"}],"version-history":[{"count":0,"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/posts\/219\/revisions"}],"wp:attachment":[{"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/media?parent=219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/categories?post=219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/p-0.me\/b\/wp-json\/wp\/v2\/tags?post=219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}