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Add simple USB CDC task.

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This commit is contained in:
Richard Barry 2009-08-07 15:30:57 +00:00
parent df338c84c3
commit 44b4467b26
2 changed files with 1 additions and 57 deletions
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56
Demo/CORTEX_LPC1768_GCC_RedSuite/src/LPCUSB/usbhw_lpc.c
View file

@ -34,52 +34,12 @@
#include "usbdebug.h" #include "usbdebug.h"
#include "usbhw_lpc.h" #include "usbhw_lpc.h"
#include "usbapi.h" #include "usbapi.h"
// Configure LED pin functions
//
// LED pin functions
//
// Function Pin Port Bits Pin Select Register
// ------------------- --- ----- ---- -------------------
// P2.0 GPIO Port 2.0 xx P2.0 1:0 PINSEL4
// P2.1 GPIO Port 2.1 xx P2.1 3:2 PINSEL4
// P2.2 GPIO Port 2.2 xx P2.2 5:4 PINSEL4
// P2.3 GPIO Port 2.3 xx P2.3 7:6 PINSEL4
// P2.4 GPIO Port 2.4 xx P2.4 9:8 PINSEL4
// P2.5 GPIO Port 2.5 xx P2.5 11:10 PINSEL4
// P2.6 GPIO Port 2.6 xx P2.6 13:12 PINSEL4
// P2.7 GPIO Port 2.7 xx P2.7 15:14 PINSEL4
//
// OFF - LED state 0
// ON - LED state 1
//
// '*' as GPIO
#define NO_LEDS 8
#define LED_0 (1 << 0)
#define LED_1 (1 << 1)
#define LED_2 (1 << 2)
#define LED_3 (1 << 3)
#define LED_4 (1 << 4)
#define LED_5 (1 << 5)
#define LED_6 (1 << 6)
#define LED_7 (1 << 7)
#ifdef DEBUG #ifdef DEBUG
// comment out the following line if you don't want to use debug LEDs // comment out the following line if you don't want to use debug LEDs
//#define DEBUG_LED //#define DEBUG_LED
#endif #endif
#ifdef DEBUG_LED
#define DEBUG_LED_ON(x) FIO2SET = (1 << x);
#define DEBUG_LED_OFF(x) FIO2CLR = (1 << x);
#define DEBUG_LED_INIT(x) PINSEL2 &= ~(0x3 << (2*x)); FIO2DIR |= (1 << x); DEBUG_LED_OFF(x);
#else
#define DEBUG_LED_INIT(x) /**< LED initialisation macro */
#define DEBUG_LED_ON(x) /**< turn LED on */
#define DEBUG_LED_OFF(x) /**< turn LED off */
#endif
/** Installed device interrupt handler */ /** Installed device interrupt handler */
static TFnDevIntHandler *_pfnDevIntHandler = NULL; static TFnDevIntHandler *_pfnDevIntHandler = NULL;
/** Installed endpoint interrupt handlers */ /** Installed endpoint interrupt handlers */
@ -458,9 +418,6 @@ void USBHwISR(void)
int i; int i;
unsigned short wFrame; unsigned short wFrame;
// LED9 monitors total time in interrupt routine
DEBUG_LED_ON(6);
// handle device interrupts // handle device interrupts
dwStatus = USB->USBDevIntSt; dwStatus = USB->USBDevIntSt;
@ -490,9 +447,7 @@ void USBHwISR(void)
((bDevStat & RST) ? DEV_STATUS_RESET : 0); ((bDevStat & RST) ? DEV_STATUS_RESET : 0);
// call handler // call handler
if (_pfnDevIntHandler != NULL) { if (_pfnDevIntHandler != NULL) {
DEBUG_LED_ON(5);
_pfnDevIntHandler(bStat); _pfnDevIntHandler(bStat);
DEBUG_LED_OFF(5);
} }
} }
} }
@ -517,15 +472,11 @@ void USBHwISR(void)
((bEPStat & EPSTAT_PO) ? EP_STATUS_ERROR : 0); ((bEPStat & EPSTAT_PO) ? EP_STATUS_ERROR : 0);
// call handler // call handler
if (_apfnEPIntHandlers[i / 2] != NULL) { if (_apfnEPIntHandlers[i / 2] != NULL) {
DEBUG_LED_ON(7);
_apfnEPIntHandlers[i / 2](IDX2EP(i), bStat); _apfnEPIntHandlers[i / 2](IDX2EP(i), bStat);
DEBUG_LED_OFF(7);
} }
} }
} }
} }
DEBUG_LED_OFF(6);
} }
@ -533,13 +484,6 @@ void USBHwISR(void)
/** /**
Initialises the USB hardware Initialises the USB hardware
This function assumes that the hardware is connected as shown in
section 10.1 of the LPC2148 data sheet:
* P0.31 controls a switch to connect a 1.5k pull-up to D+ if low.
* P0.23 is connected to USB VCC.
Embedded artists board: make sure to disconnect P0.23 LED as it
acts as a pull-up and so prevents detection of USB disconnect.
@return TRUE if the hardware was successfully initialised @return TRUE if the hardware was successfully initialised
*/ */

2
Demo/CORTEX_LPC1768_GCC_RedSuite/src/main.c
View file

@ -46,7 +46,7 @@
*/ */
//#error The batch file Demo\CORTEX_LPC1768_GCC_RedSuite\CreateProjectDirectoryStructure.bat must be executed before the first build. After executing the batch file hit F5 to refrech the Eclipse project, then delete this line. #error The batch file Demo\CORTEX_LPC1768_GCC_RedSuite\CreateProjectDirectoryStructure.bat must be executed before the first build. After executing the batch file hit F5 to refrech the Eclipse project, then delete this line.