Reset & enable port, but EHCI stops with error :-(

k66_usbhost.ino

@@ -1,19 +1,26 @@
 // usb host experiments....
 
+
+//void * periodictable[64]  __attribute__ ((section(".dmabuffers"), used, aligned(4096)))
+uint32_t periodictable[64] __attribute__ ((aligned(4096)));
+
+
 void setup()
 {
 	pinMode(32, OUTPUT);	// pin 32 = USB switch, high=connect device
 	digitalWrite(32, LOW);
 	while (!Serial) ; // wait
 	print("USB Host Testing");
+	MPU_RGDAAC0 |= 0x30000000;
 	MCG_C1 |= MCG_C1_IRCLKEN;  // enable MCGIRCLK 32kHz
 	OSC0_CR |= OSC_ERCLKEN;
 	SIM_SOPT2 |= SIM_SOPT2_USBREGEN; // turn on USB regulator
 	SIM_SOPT2 &= ~SIM_SOPT2_USBSLSRC; // use IRC for slow clock
 	print("power up USBHS PHY");
 	SIM_USBPHYCTL |= SIM_USBPHYCTL_USBDISILIM; // disable USB current limit
-	SIM_USBPHYCTL = SIM_USBPHYCTL_USBDISILIM | SIM_USBPHYCTL_USB3VOUTTRG(6); // pg 237
+	//SIM_USBPHYCTL = SIM_USBPHYCTL_USBDISILIM | SIM_USBPHYCTL_USB3VOUTTRG(6); // pg 237
 	SIM_SCGC3 |= SIM_SCGC3_USBHSDCD | SIM_SCGC3_USBHSPHY | SIM_SCGC3_USBHS;
+	USBHSDCD_CLOCK = 33 << 2;
 	print("init USBHS PHY & PLL");
 	// init process: page 1681-1682
 	USBPHY_CTRL &= ~USBPHY_CTRL_SFTRST;	// CTRL pg 1698
@@ -52,15 +59,32 @@ void setup()
 // USBHS_PORTSC           1619  00002000
 // USBHS_USBMODE          1629  00005000
 
+	print("begin ehci reset");
+	USBHS_USBCMD |= USBHS_USBCMD_RST;
+	count = 0;
+	while (USBHS_USBCMD & USBHS_USBCMD_RST) {
+		count;
+	}
+	print(" reset waited ", count);
+
+	for (int i=0; i < 64; i++) {
+		//periodictable[i] = (void *)1;
+		periodictable[i] = 1;
+	}
 	USBHS_USBINTR = 0;
-	USBHS_PERIODICLISTBASE = 0; // TODO: data..
+	USBHS_PERIODICLISTBASE = (uint32_t)periodictable;
+	USBHS_FRINDEX = 0;
 	USBHS_ASYNCLISTADDR = 0;    // TODO: data..
 
 	// turn on the USBHS controller
 	USBHS_USBMODE = USBHS_USBMODE_TXHSD(5) | USBHS_USBMODE_CM(3); // host mode
-	USBHS_USBCMD = USBHS_USBCMD_ITC(8) | USBHS_USBCMD_RS |
-		USBHS_USBCMD_FS2 | USBHS_USBCMD_FS(0); // periodic table is 64 pointers
+	USBHS_USBCMD = USBHS_USBCMD_ITC(0) | USBHS_USBCMD_RS | USBHS_USBCMD_ASP(3) |
+		USBHS_USBCMD_FS2 | USBHS_USBCMD_FS(0) | // periodic table is 64 pointers
+		USBHS_USBCMD_PSE;
+
 	USBHS_PORTSC1 |= USBHS_PORTSC_PP;
+	//USBHS_PORTSC1 |= USBHS_PORTSC_PFSC; // force 12 Mbit/sec
+	//USBHS_PORTSC1 |= USBHS_PORTSC_PHCD; // phy off
 }
 
 void port_status()
@@ -77,12 +101,14 @@ void port_status()
 	} else {
 		Serial.print("off ");
 	}
-
+	if (n & USBHS_PORTSC_PHCD) {
+		Serial.print("phyoff ");
+	}
 	if (n & USBHS_PORTSC_PE) {
-		if (USBHS_PORTSC_SUSP) {
+		if (n & USBHS_PORTSC_SUSP) {
 			Serial.print("suspend ");
 		} else {
-			Serial.print("enable ");   // not working... why?
+			Serial.print("enable ");
 		}
 	} else {
 		Serial.print("disable ");
@@ -101,10 +127,24 @@ void port_status()
 		Serial.print("overcurrent ");
 	}
 	if (n & USBHS_PORTSC_CCS) {
-		Serial.print("connected");
+		Serial.print("connected ");
 	} else {
-		Serial.print("not-connected");
+		Serial.print("not-connected ");
 	}
+	// print info about the EHCI status
+	Serial.print(" run=");
+	Serial.print(USBHS_USBCMD & 1);         // running mode
+	Serial.print(",halt=");
+	Serial.print((USBHS_USBSTS >> 12) & 1); // halted mode
+	Serial.print(",err=");
+	Serial.print((USBHS_USBSTS >> 4) & 1);  // error encountered!
+	Serial.print(",asyn=");
+	Serial.print((USBHS_USBSTS >> 15) & 1); // running the async schedule
+	Serial.print(",per=");
+	Serial.print((USBHS_USBSTS >> 14) & 1); // running the periodic schedule
+	Serial.print(",index=");
+	Serial.print(USBHS_FRINDEX);            // periodic index
+
 	Serial.println();
 }
 
@@ -120,15 +160,17 @@ void loop()
 		Serial.println("Plug in device...");
 		digitalWrite(32, HIGH); // connect device
 	}
-	if (count == 6) {
+	if (count == 5) {
 		Serial.println("Initiate Reset Sequence...");
 		USBHS_PORTSC1 |= USBHS_PORTSC_PR;
 	}
-	if (count == 16) {
+	if (count == 15) {
 		Serial.println("End Reset Sequence...");
 		USBHS_PORTSC1 &= ~USBHS_PORTSC_PR;
 	}
-
+	if (count > 5000) {
+		while (1) ; // stop here
+	}
 }
 
 void print(const char *s)