Tomas Cerskus / USBDevice

USB device stack with Nucleo F401RE support. NOTE: the default clock config needs to be changed to in order for USB to work.

Fork of USBDevice by Tomas Cerskus

Slightly modified original USBDevice library to support F401RE.

On F401RE the data pins of your USB connector should be attached to PA12 (D+) and PA11(D-). It is also required to connect the +5V USB line to PA9.

F401RE requires 48MHz clock for USB. Therefore in order for this to work you will need to change the default clock settings:

Clock settings for USB

#include "stm32f4xx_hal.h"

RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 16;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
    error("RTC error: LSI clock initialization failed."); 
}

NOTE: Changing the clock frequency might affect the behavior of other libraries. I only tested the Serial library.

UPDATE: Clock settings should not to be changed anymore! Looks like the newer mbed library has the required clock enabled.

Diff: USBDevice/USBHAL.h

Revision:
8:335f2506f422
Parent:
1:80ab0d068708
Child:
10:1e3d126a322b
--- a/USBDevice/USBHAL.h	Mon Jan 21 10:41:28 2013 +0000
+++ b/USBDevice/USBHAL.h	Fri Mar 01 13:10:29 2013 +0000
@@ -37,6 +37,7 @@
     /* Endpoint 0 */
     void EP0setup(uint8_t *buffer);
     void EP0read(void);
+    void EP0readStage(void);
     uint32_t EP0getReadResult(uint8_t *buffer);
     void EP0write(uint8_t *buffer, uint32_t size);
     void EP0getWriteResult(void);
@@ -61,17 +62,52 @@
     virtual void connectStateChanged(unsigned int connected){};
     virtual void suspendStateChanged(unsigned int suspended){};
     virtual void SOF(int frameNumber){};
+            
     virtual bool EP1_OUT_callback(){return false;};
     virtual bool EP1_IN_callback(){return false;};
     virtual bool EP2_OUT_callback(){return false;};
     virtual bool EP2_IN_callback(){return false;};
     virtual bool EP3_OUT_callback(){return false;};
     virtual bool EP3_IN_callback(){return false;};
+    virtual bool EP4_OUT_callback(){return false;};
+    virtual bool EP4_IN_callback(){return false;};
+    
+#if !defined(TARGET_LPC11U24)
+    virtual bool EP5_OUT_callback(){return false;};
+    virtual bool EP5_IN_callback(){return false;};
+    virtual bool EP6_OUT_callback(){return false;};
+    virtual bool EP6_IN_callback(){return false;};
+    virtual bool EP7_OUT_callback(){return false;};
+    virtual bool EP7_IN_callback(){return false;};
+    virtual bool EP8_OUT_callback(){return false;};
+    virtual bool EP8_IN_callback(){return false;};
+    virtual bool EP9_OUT_callback(){return false;};
+    virtual bool EP9_IN_callback(){return false;};
+    virtual bool EP10_OUT_callback(){return false;};
+    virtual bool EP10_IN_callback(){return false;};
+    virtual bool EP11_OUT_callback(){return false;};
+    virtual bool EP11_IN_callback(){return false;};
+    virtual bool EP12_OUT_callback(){return false;};
+    virtual bool EP12_IN_callback(){return false;};
+    virtual bool EP13_OUT_callback(){return false;};
+    virtual bool EP13_IN_callback(){return false;};
+    virtual bool EP14_OUT_callback(){return false;};
+    virtual bool EP14_IN_callback(){return false;};
+    virtual bool EP15_OUT_callback(){return false;};
+    virtual bool EP15_IN_callback(){return false;};
+#endif
     
 private:
     void usbisr(void);
     static void _usbisr(void);
     static USBHAL * instance;
+
+#if defined(TARGET_LPC11U24)
+        bool (USBHAL::*epCallback[10 - 2])(void);
+#else
+        bool (USBHAL::*epCallback[32 - 2])(void);
+#endif
+
+        
 };
 #endif
-