Need Help OMAP L138 USB OTG in Host Mode

Anton Zhadchenko

Prodigy 70 points

Other Parts Discussed in Thread: CCSTUDIO, OMAPL138

Hi, I have some questions about configuration USB OTG controller on EVM OMAP L138

Sample code I use refer SPRUFM9D :

1) file main.c

#include "stdio.h"

#include "types.h"

#include "evmomapl138.h"

#include "evmomapl138_timer.h"

#include "usb_reg_test.h"

#include "evmomapl138_usb.h"

///////////////////////////////////////////////////////////////////

int main(void)

{

// uint16_t I;

// uint32_t results = 0;

#if NO_GEL

EVMOMAPL138_init();

EVMOMAPL138_initRAM();

#endif

USTIMER_init();

USB_OTG_init_forum();

//---------------------------------------------------------------------

printf("STATR = 0x%X\r\n",USB_OTG->STATR);

printf("CTRLR = 0x%X\r\n",USB_OTG->CTRLR);

printf("CFGCHIP[2] = 0x%X\r\n",SYSCONFIG->CFGCHIP[2]);

printf("INTSRCR = 0x%X\r\n",USB_OTG->INTSRCR);

printf("INTSETR = 0x%X\r\n",USB_OTG->INTSETR);

printf("INTCLRR = 0x%X\r\n",USB_OTG->INTCLRR);

printf("EOIR = 0x%X\r\n",USB_OTG->EOIR);

printf("FADDR = 0x%X\r\n",USB_OTG->FADDR);

printf("POWER = 0x%X\r\n",USB_OTG->POWER);

printf("INTRTX = 0x%X\r\n",USB_OTG->INTRTX);

printf("INTRRX = 0x%X\r\n",USB_OTG->INTRRX);

printf("INTRTXE = 0x%X\r\n",USB_OTG->INTRTXE);

printf("INTRRXE = 0x%X\r\n",USB_OTG->INTRRXE);

printf("INTRUSB = 0x%X\r\n",USB_OTG->INTRUSB);

printf("INDEX = 0x%X\r\n",USB_OTG->INDEX);

printf("HOST_CSR0 = 0x%X\r\n",USB_OTG->HOST_CSR0);

printf("COUNT0 = 0x%X\r\n",USB_OTG->COUNT0);

printf("HOST_TYPE0 = 0x%X\r\n",USB_OTG->HOST_TYPE0);

printf("HOST_NAKLIMIT0 = 0x%X\r\n",USB_OTG->HOST_NAKLIMIT0);

printf("CONFIGDATA = 0x%X\r\n",USB_OTG->CONFIGDATA);

printf("DEVCTL = 0x%X\r\n",USB_OTG->DEVCTL);

USB_OTG_SETUP();

return(0);

}

USB initialization procedure:

//-----------------------------------------------------------------------------

// \file test_usb.c

// \brief simple reading registers

//-----------------------------------------------------------------------------

#include "stdio.h"

#include "types.h"

#include "evmomapl138.h"

#include "evmomapl138_timer.h"

//#include "usb_reg_test.h"

#include "evmomapl138_usb.h"

///////////////////////////////////////////////////////////////////////////////////////

void USB_OTG_init_forum()

{

uint16_t I;

// Config BootREGS

SYSCONFIG->KICKR[0] = KICK0R_UNLOCK;

SYSCONFIG->KICKR[1] = KICK1R_UNLOCK;

//Config PINMUX

SYSCONFIG->PINMUX[9] |= 0x010;

SYSCONFIG->PINMUX[9] &= 0xFFFFFF7F ;

// Reset the USB controller:

USB_OTG->CTRLR |= 0x00000001;

//Wait until controller is finished with Reset. When done, it will clear the RESET bit field.

while ((USB_OTG->CTRLR & 0x1) == 1);

// RESET: Hold PHY in Reset

SYSCONFIG->CFGCHIP[2] |= 0x00008000; // Hold PHY in Reset

// Drive Reset for few clock cycles

for (I=0; I < 50; I++);

// RESET: Release PHY from Reset

SYSCONFIG->CFGCHIP[2] &= 0xFFFF7FFF; // Release PHY from Reset

/* Configure PHY with the Desired Operation */

// OTGMODE

SYSCONFIG->CFGCHIP[2] &= 0xFFFF9FFF; // 00= > Do Not Override PHY Values

//SYSCONFIG->CFGCHIP[2] |= 0x00002000; // 11= > Override PHY Values, force host, VBUS low

// PHYPWDN

SYSCONFIG->CFGCHIP[2] &= 0xFFFFFBFF; // 1/0 = > PowerdDown/ NormalOperation

// OTGPWRDN

SYSCONFIG->CFGCHIP[2] &= 0xFFFFFDFF; // 1/0 = > PowerDown/ NormalOperation

// DATAPOL

SYSCONFIG->CFGCHIP[2] |= 0x00000100; // 1/0 = > Normal/ Reversed

// SESNDEN

SYSCONFIG->CFGCHIP[2] |= 0x00000020; // 1/0 = > NormalOperation/ SessionEnd

// VBDTCTEN

SYSCONFIG->CFGCHIP[2] |= 0x00000010; // 1/0 = > VBUS Comparator Enable/ Disable

/* Configure PHY PLL use and Select Source */

// REF_FREQ[3:0]

SYSCONFIG->CFGCHIP[2] |= 0x00000002; // 0010b = > 24MHz Input Source

// USB2PHYCLKMUX: Select External Source

SYSCONFIG->CFGCHIP[2] &= 0xFFFFF7FF; // 1/0 = > Internal/External(Pin)

// PHY_PLLON: On Simulation PHY PLL is OFF

SYSCONFIG->CFGCHIP[2] |= 0x00000040; // 1/0 = > On/ Off

// Wait Until PHY Clock is Good //

while ((SYSCONFIG->CFGCHIP[2] & 0x00020000) == 0);

#ifndef HS_ENABLE

// Disable high-speed

USB_OTG->POWER &= ~USB_OTG_POWER_HSEN;

#else

// Enable high-speed

USB_OTG->POWER |= USB_OTG_POWER_HSEN;

#endif

// Enable Interrupts

// Enable interrupts in OTG block

USB_OTG->CTRLR &= 0xFFFFFFF7; // Enable PDR2.0 Interrupt

USB_OTG->INTRTXE = 0x1F; // Enable All Core Tx Endpoints Interrupts + EP0 Tx/Rx interrupt

USB_OTG->INTRRXE = 0x1E; // Enable All Core Rx Endpoints Interrupts

// Enable all interrupts in OTG block

USB_OTG->INTMSKSETR = 0x01FF1E1F;

// Enable all USB interrupts in MUSBMHDRC

USB_OTG->INTRUSBE = 0xFF;

// Enable SUSPENDM so that suspend can be seen UTMI signal

USB_OTG->POWER |= USB_OTG_POWER_ENSUSPM;

//Clear all pending interrupts

USB_OTG->INTCLRR = USB_OTG->INTSRCR;

//Set softconn bit

USB_OTG->POWER |= USB_OTG_POWER_SOFTCONN;

// while (( USB_OTG->DEVCTL & 0x01) == 0);

// Start a session

USB_OTG->DEVCTL |= USB_OTG_DEVCTL_SESSION;

USTIMER_init();

USB_OTG->POWER |= 0x20; // set bit5 - "1"

USB_OTG->POWER |= 0x08; //set bit3 - "1"

for (I=0; I<50; I++);

// set delay 20ms

USTIMER_delay(500000);

USB_OTG->POWER &= 0xF7;

}

void USB_OTG_SETUP()

{

printf("_____________________\n");

USB_OTG->INTCLRR &= 0xffffffff;

printf("INTCLRR = 0x%X\r\n",USB_OTG->INTCLRR);

USB_OTG->FIFO0 = 0x030500 ;//DATA

USB_OTG->HOST_CSR0 |= 0x0A;/// SETUPPKT and TXPKTRDY

printf("HOST_CSR0 = 0x%X\r\n",USB_OTG->HOST_CSR0);

USTIMER_delay(500000);

printf("INTSRCR = 0x%X\r\n",USB_OTG->INTSRCR);

printf("INTCLRR = 0x%X\r\n",USB_OTG->INTCLRR);

if ((USB_OTG->HOST_CSR0 & 0x04)== 0x04 )// RXSTALL

{

printf("RXSTALL = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

else

{

printf("RXSTALL_OK = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

if ((USB_OTG->HOST_CSR0 & 0x0010)== 0x0010 )// ERROR

{

printf("ERROR = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

else

{

printf("ERRROR_OK = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

if ((USB_OTG->HOST_CSR0 & 0x080)== 0x080 )// NAK_TIMEOUT

{

printf("NAK_TIMEOUT = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

else

{

printf("NAK_TIMEOUT_OK = 0x%X\r\n",USB_OTG->HOST_CSR0);

}

////////////////////////////////////////////////////////////////////////////////

And now I have some questions

Where can I find PINMUX settings USB OTG (in my sample code I use PINMUX from OMAP L137 example)
Registers values after run this programm:

STATR=0x01

INTSRCR=0x1100000

INTSETR=0x1100000

INTCLRR=0x1100000

EOIR=0

FADDR=0

POWER=0x61

INDEX=0

DEVCTRL=0x5D

CTRL=0x0

CFGCHIP2=0x301F2

USB_ID pin is LOW

After doing init USB I try to start Control Transfer and receive Standart Device Descriptor

Load 8 bytes in EP0 FIFO and set SETUPPKT and TXPKTRDY, and then EP0 Interrupt...But I did not receive ANY INTERRUPT AT ALL!

АБСОЛЮТНО НИЧЕГО НЕ ПРОИСХОДИТ!НИКАКИХ ПРЕРЫВАНИЙ НЕ ВОЗНИКАЕТ!

That should I do?There is my mistake?

Best regard,Anton

over 15 years ago

0 swami over 15 years ago

TI__Expert 7435 points

Anton,

USB driver is available on both DSP and ARM end for L137/37 platforms. Can you not re-use the same for your product?

regards

swami

0 Anton Zhadchenko over 15 years ago in reply to swami

Prodigy 70 points

Hi swami

First of all, I want to say you that I do my first steps working with such complex feature processor

And I first open the box with EVM board and use CD with install of CCStudio and EVM Drivers and BSL

Thats all, now I did not use any more Driver. So I don't cleary understand your question.

If any mory Drivers I need for my product, please tell my about, maybe some links will be useful for me

With best wishes

Anton

0 swami over 15 years ago in reply to Anton Zhadchenko

TI__Expert 7435 points

Anton,

The EVM kit would have documentation providing the link to the Software and Tools location. You can also locate the same by entering OMAPL138 name in the search at www.ti.com.

In any case pl. find below the link to the associated software and tools for OMAPL138 platform in the link below

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/omap_l138/1_00/latest/index_FDS.html

Can you provide more information on your product requirements and how USB fits in those requirements? Do you want to use both DSP and ARM ? Any specific OS or no OS needs in the product?

regards

swami

0 Anton Zhadchenko over 15 years ago in reply to swami

Prodigy 70 points

Swami,

As I can understand for my work with this board I need download more software:

OMAP_L138_dsp_setupwin32_1_00_00_08.exe

BIOSUSB Driver

TI_CGT_C6000_6.1.9_setup.exe

In general, my main aim - create an USB OTG HOST for work with Mass Storage Devices in High Speed Mode, so I think I only need to use USB OTG Controller as part of OMAP

For this purposes I buy EVM board.

My steps to rich this aim:

1. Initialize USB OTG in High Speed Host Mode

2. Make a Control Transfer to get Descriptors and Statuses of different High Speed Mass Storage Devices

3. Make a non-DMA Bulk Transfer

As I can read in docs, I need only DSP part of OMAP

Now I have Windows PC connected to EVM board through cable in box and emul tool

Using J6 on board USB OTG connector I use Micro-A plug to standard A receptacle and connect HS Flash Drive

Then I create sample code initializing USB OTG in HOST mode in CCstudio3.3 and load it into memory of OMAP,and run application I posted upper

And did not receive any Interrupt at all.

And now I try to solve this problem:)

regards

Anton

0 swami over 15 years ago in reply to Anton Zhadchenko

TI__Expert 7435 points

Anton,

You would need to install BIOSUSB package and the dependant packages. Pl. refer to the BIOSUSB user guide for more details on the package versions and download the same from the link that I shared with you earlier.

Pl. follow the instructions in the user guide of BIOSUSB to compile and run the Host MSC sample application. If you have done the steps that re mentioned in the user guide for MSS Host applications then you should be able to work with a connected USB Stick/HDD automatically.

BIOSUSB package has support for Host MSC application by default and that is what I feel you are needing based on your latest update.

regards

swami

0 Anton Zhadchenko over 15 years ago in reply to swami

Prodigy 70 points

Swami

Thank you very much!

I will try this soft and post about my results

regards

Anton

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Need Help OMAP L138 USB OTG in Host Mode