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Blackfin BF561 & ISP1583 (USB 2.0) íå êîððåêòíî ðàáîòàåò
(«Òåëåñèñòåìû»: Êîíôåðåíöèÿ «Ìèêðîêîíòðîëëåðû è èõ ïðèìåíåíèå»)

ìèíèàòþðíûé àóäèî-âèäåîðåêîðäåð mAVR

Îòïðàâëåíî SimpleSoft 12 àïðåëÿ 2006 ã. 11:27

Ïàðàìåòðû: Philips ISP1583BS ïîäêëþ÷åí ê ñèñòåìíîé øèíå.
×àñòîòà ÿäðà 485ÌÃö, øèíû 121.5ÌÃö.
Äîëãî ìó÷àëñÿ ñ íàñòðîéêîé ñêîðîñòè âíåøíåé øèíû, íàêîíåö óäàëîñü ñòàáèëüíî ïèñàòü/÷èòàòü â ðåãèñòðû. (×èòàþ ChipID È íîðìàëüíî ïèøó/÷èòàþ â Scratch ðåãèñòð)
INTERRUPT, SUSPEND çàâåäåíû íà PFêè. Íàñòðîèë ïðåðûâàíèÿ îò PF. Âñ¸ äåëàë ïî àíàëîãèè, êàê â "ISP1583 Split Bus Firmware_9sep03".
Íî âîò â ÷¸ì áåäà:
1. Ïðè ïîäêëþ÷åíèè ê ÏÊ ñ USB 2.0 íå âûñòàâëÿåòñÿ â ðåãèñòðå ïðåðûâàíèÿ ôëàã EP0SETUP, ïîñëåäîâàòåëüíîñòü ïðåðûâàíèé, êîòîðûå ÿ ëîâëþ:
Resume (0x10)
Reset & HS_STAT(0x21)
Resume & Susp (0x18)
Reset & HS_STAT(0x21)
Resume & Susp (0x18)
Reset & HS_STAT(0x21)
Resume & Susp (0x18)
Susp(0x8)
èíîãäà, íà ðàç 10é ïîëó÷àåòñÿ äðóãàÿ
Resume (0x10)
Reset & HS_STAT(0x21)
EP0SETUP & Reset(0x101)
...
Susp(0x8)
2. êîãäà æå ïîäêëþ÷àåøü ê ÏÊ ñ USB 1.1 âñåãäà ñðàáàòûâàåò EP0SETUP,
íî êîãäà íàïîëíÿåøü áóôåð è îòïðàâëÿåøü õîñò îïÿòü äåëàåò Reset è GetDeviceDescriptor, âìåñòî SetAddress.

Äà è çàìåòèë ãëþê, åñëè ñðàçó ïðè ñðàáàòûâàíèè EP0SETUP âû÷èòàòü äàííûå èç Data Port, òî ïåðâûå 2 ÷òåíèÿ ÿ èìåþ íóëè à äàëüøå - 80 06 10 00 ...

Ïîäñêàæèòå ïîæàëóéñòà, êòî ñòàëêèâàëñÿ ñ ïðîáëåìîé, ïóòè ðåøåíèÿ å¸.

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