Hola, estoy intentando definir dos endpoints USB en un pic 18F2550.
Estoy usando CCS y me estoy basando en el PICUSB de JIM.
He añadido en el fichero PICUSB.h las líneas correspondientes para definir un endpoint nuevo, os las pego aquí
//endpoint descriptor
//ep_recepcion1
USB_DESC_ENDPOINT_LEN, //length of descriptor
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (0x05)
0x81, //endpoint number and direction (0x81 = EP1 IN)
0x02, //transfer type supported (0 is control, 1 is iso, 2 is bulk, 3 is interrupt)
USB_EP1_TX_SIZE,0x00, //maximum packet size supported
0x01, //polling interval in ms. (for interrupt transfers ONLY)
//endpoint descriptor
//ep_recepcion2
USB_DESC_ENDPOINT_LEN, //length of descriptor
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (0x05)
0x82, //endpoint number and direction (0x81 = EP1 IN)
0x02, //transfer type supported (0 is control, 1 is iso, 2 is bulk, 3 is interrupt)
USB_EP2_TX_SIZE,0x00, //maximum packet size supported
0x01, //polling interval in ms. (for interrupt transfers ONLY)
//endpoint descriptor
//ep_transmision1
USB_DESC_ENDPOINT_LEN, //length of descriptor
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (0x05)
0x01, //endpoint number and direction (0x01 = EP1 OUT)
0x02, //transfer type supported (0 is control, 1 is iso, 2 is bulk, 3 is interrupt)
USB_EP1_RX_SIZE,0x00, //maximum packet size supported
0x01, //polling interval in ms. (for interrupt transfers ONLY)
//endpoint descriptor
//ep_transmision2
USB_DESC_ENDPOINT_LEN, //length of descriptor
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (0x05)
0x02, //endpoint number and direction (0x01 = EP1 OUT)
0x02, //transfer type supported (0 is control, 1 is iso, 2 is bulk, 3 is interrupt)
USB_EP2_RX_SIZE,0x00, //maximum packet size supported
0x01, //polling interval in ms. (for interrupt transfers ONLY)
¿Está bien así, o cambia el orden?
En el fichero PICUSB.c tengo los siguientes defines:
#define USB_HID_DEVICE FALSE //deshabilitamos el uso de las directivas HID
//ENDOPINT 1
#define USB_EP1_TX_ENABLE USB_ENABLE_BULK //turn on EP1(EndPoint1) for IN bulk/interrupt transfers
#define USB_EP1_RX_ENABLE USB_ENABLE_BULK //turn on EP1(EndPoint1) for OUT bulk/interrupt transfers
#define USB_EP1_TX_SIZE 1 //size to allocate for the tx endpoint 1 buffer
#define USB_EP1_RX_SIZE 1 //size to allocate for the rx endpoint 1 buffer
//ENDPOINT 2
#define USB_EP2_TX_ENABLE USB_ENABLE_BULK //turn on EP1(EndPoint1) for IN bulk/interrupt transfers
#define USB_EP2_RX_ENABLE USB_ENABLE_BULK //turn on EP1(EndPoint1) for OUT bulk/interrupt transfers
#define USB_EP2_TX_SIZE 64 //size to allocate for the tx endpoint 1 buffer
#define USB_EP2_RX_SIZE 64 //size to allocate for the rx endpoint 1 buffer
EL problema que tengo es que no me transmite ni recibe por ningún endpoint.
Si hace falta el código completo o alguna cosa más pedírmela.
Un saludo y gracias.
