Hi Tsuneo,
Thank you so much for thehelpful information and sorry about the delay in reply back to your message.
When you said the problem was Check_USBBus_Status() function I used a trick to bypass it in main.c in the absence of VBUS. Something like:
//
if(PTGD_PTGD3) {
USBATTACHED = TRUE;
}
//
and in for( ; 
loop:
//
if(USBATTACHED)
{
Check_USBBus_Status();
}
//
This was a quick fix for the problem and painful for the user to change the mode at Reset . I got what you said about the VBUS assignment to (any) input ports, but because I already made my PCB for the device I am making with S08JM60, I have to modify it to make the self power detection happens.
Again I truly appreciate your respond to my info. request.
Best Regards
Red
Hi Tsuneo,
Thank you so much for thehelpful information and sorry about the delay in reply back to your message.
When you said the problem was Check_USBBus_Status() function I used a trick to bypass it in main.c in the absence of VBUS. Something like:
//
if(PTGD_PTGD3) {
USBATTACHED = TRUE;
}
//
and in for( ; loop:
//
if(USBATTACHED)
{
Check_USBBus_Status();
}
//
This was a quick fix for the problem and painful for the user to change the mode at Reset . I got what you said about the VBUS assignment to (any) input ports, but because I already made my PCB for the device I am making with S08JM60, I have to modify it to make the self power detection happens.
Again I truly appreciate your respond to my info. request.
Best Regards
Red
Hi Tsuneo,
Sorry about bothering you again. It seems like I need to know much more about USB configurations than I know know.
I took the Check_USBBus_Status(); out of the if condition in the main.c for loop and commented the USB_Suspend() in Check_USBBus_Status(void) as you previously said to do. I also defined another input port to check the VBUS and called it USB_PWR.
so in Usb_Drv.c I have:
void Check_USBBus_Status(void)
{
#ifdef SELF_POWER
if(USB_PWR == USB_BUS_ATTACHED) /* Is JM60 attached on USB bus? */
{
#endif
if(CTL_USBEN == 0) /* JM60 module off ? */
{
EPCTL0 = 0x0D;
INTSTAT = 0xBF;
CTL = 0x00;
INTENB = 0x00; /* disable USB interrupt*/
CTL_USBEN = 0x01; /* enable module */
USBCTL0 = UCFG_VAL; /* attach JM60 to USB bus*/
Usb_Device_State = ATTACHED_STATE;
}
#ifdef SELF_POEWER
}
else
{
if(CTL_USBEN == 1) /* JM60 USB on ?*/
{
CTL = 0x00; /* disable module */
INTENB = 0x00; /* mask USB interrupt*/
Usb_Device_State = POWERED_STATE;
}
}
#endif
if(Usb_Device_State == ATTACHED_STATE)
{
INTSTAT = 0xBF; /*clear USB interrupts*/
INTENB = 0xBF;
}
if(Usb_Device_State == USB_ENTER_SUSPEND)
{
// USB_Suspend();
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
and in main.c for loop I have:
for(;
{
/* USB Manager, please keep it in main Loop */
Check_USBBus_Status();
if (ButtonPressed)
{
// Data sent to UI in EP2
// MASEG_proc(SWITCHES_PORT);
EP2_Buffer[0] = MASEG_proc(SWITCHES_PORT);
EndPoint_IN(EP2,8); //send data
ButtonPressed = CLEAR; //clear ButtonPressed flag
KBI_ENABLE(); //enable KBI
}
}
And as I mentioned before I am using "ButtonPressed" event to check my keyboard pressing events, so I cannot use if condition like:
if (Usb_Device_State == CONFIGURED_STATE) // run this contents just when USB connection is established
{
if (ButtonPressed)
{
// If there is any change in the switches, send the status
EP2_Buffer[0] = SWITCHES_PORT; //assign value of the push buttons to EP2 buffer
EndPoint_IN(EP2,8); //send data
ButtonPressed = 0; //clear ButtonPressed flag
KBI_ENABLE(); //enable KBI
}
}
And the keyboard is not working in Self_Powered mode(using external Voltage), if I don't do the following in the main.c:
if(USB_PWR) {
USBATTACHED = TRUE;
}
//
if(USBATTACHED)
{
Check_USBBus_Status();
}
//
If you need more information please let me know and thank you so much for your time and attention.
Regards,
Red
