Hello, I had tried several examples (USBMouse, USBKeyboard_Mouse), but it seems what the USB mbed library currently does not support the STM32F446ZE as target :(

What issues are you specifically having, is it compiling the examples for the target? Are you getting build errors? Or is it just not functioning?

Andrea

Hi, I get following errors: Error: Too few arguments in invocation of macro "STM_PIN_DATA" in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 58, Col: 43 Error: Expected an expression in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 58, Col: 25 Error: Too few arguments in invocation of macro "STM_PIN_DATA" in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 59, Col: 42 Error: Expected an expression in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 59, Col: 25 Error: Too few arguments in invocation of macro "STM_PIN_DATA" in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 60, Col: 44 Error: Expected an expression in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 60, Col: 26 Error: Too few arguments in invocation of macro "STM_PIN_DATA" in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 61, Col: 44 Error: Expected an expression in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 61, Col: 26 Error: Too few arguments in invocation of macro "STM_PIN_DATA" in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 62, Col: 44 Error: Expected an expression in "USBDevice/USBDevice/USBHAL_STM32F4.cpp", Line: 62, Col: 26

Hi,

So ok. Looking in the USB device library in the program "USBKeyboard"

https://developer.mbed.org/handbook/USBKeyboard

It seems that when compiling the target is not yet supported in the USBdevice.

It is possible you could add the target yourself following the steps:

Navigate to USBDevice/USBDevice/USBHAL_STM32F4.cpp;

Go to line 51 (line 33 in my example) and add at the very end " || defined(TARGET_STM32F446ZE) "

This adds the target to list of defined platforms in the USBdevice.

Your code should therefore look like this

#if defined(TARGET_STM32F4)

#include "USBHAL.h"
#include "USBRegs_STM32.h"
#include "pinmap.h"

USBHAL * USBHAL::instance;

static volatile int epComplete = 0;

static uint32_t bufferEnd = 0;
static const uint32_t rxFifoSize = 512;
static uint32_t rxFifoCount = 0;

static uint32_t setupBuffer[MAX_PACKET_SIZE_EP0 >> 2];

uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
    return 0;
}

USBHAL::USBHAL(void) {
    NVIC_DisableIRQ(OTG_FS_IRQn);
    epCallback[0] = &USBHAL::EP1_OUT_callback;
    epCallback[1] = &USBHAL::EP1_IN_callback;
    epCallback[2] = &USBHAL::EP2_OUT_callback;
    epCallback[3] = &USBHAL::EP2_IN_callback;
    epCallback[4] = &USBHAL::EP3_OUT_callback;
    epCallback[5] = &USBHAL::EP3_IN_callback;

    // Enable power and clocking
    RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;

#if defined(TARGET_STM32F407VG) || defined(TARGET_STM32F401RE) || defined(TARGET_STM32F411RE) || defined(TARGET_STM32F429ZI) || defined(TARGET_STM32F446ZE) //New added definition
    pin_function(PA_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
    pin_function(PA_9, STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLDOWN, GPIO_AF10_OTG_FS));
    pin_function(PA_10, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_PULLUP, GPIO_AF10_OTG_FS));
    pin_function(PA_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
    pin_function(PA_12, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
#else
    pin_function(PA_8, STM_PIN_DATA(2, 10));
    pin_function(PA_9, STM_PIN_DATA(0, 0));
    pin_function(PA_10, STM_PIN_DATA(2, 10));
    pin_function(PA_11, STM_PIN_DATA(2, 10));
    pin_function(PA_12, STM_PIN_DATA(2, 10));

I have no board to test this with but i now also get no compiler errors so it's worth a shot.

Let me know how you get on!

All the best.

Andrea, team mbed

Yes I have tried this yesterday, the code compiles but does not work (device is not appears in the system). Also, as I remember the USB registers for the STM32F407 and STM32F429 a little bit differ but code in the USBHAL_STM32F4.cpp do not pay attention on this...