Thanks but I already did, thats how I found that the code I have was copied
from that file. The difference being that it uses
interrupt NVIC_OTG_FS_IRQ to know when to poll. Are there some
docs/examples on how to use usb interrupts'
for f3?
On 16 July 2014 22:52, Chuck McManis <[email protected]> wrote:
> github://libopencm3-examples/
>
> Look in the examples/stm32/f3/stm32f3-discovery directory for examples.
>
>
> On Wed, Jul 16, 2014 at 1:27 PM, Luis Rodrigues <[email protected]>
> wrote:
>
>> Its STM32F302R8T6, so I guess it does not have OTG.
>>
>> Just realized one of the files I'm converting basically is
>> "usb_cdcacm/cdcacm.c" (from examples) with added stuff:
>>
>>
>> nvic_enable_irq(NVIC_OTG_FS_IRQ); and then:
>>
>> void otg_fs_isr(void) { (this is interrupt handler, right?)
>> usbd_poll(usbd_dev);
>> }
>>
>> Can you please help me, how could this be done in F3?
>>
>> Luis
>>
>>
>>
>> On 16 July 2014 21:40, Chuck McManis <[email protected]> wrote:
>>
>>> The code recently changed (well a couple of months ago) so that instead
>>> of rcc_peripheral_enable_clock( ...) its now simply
>>> rcc_periph_clock_enable(RCC_GPIOA) for example, But perhaps more
>>> importantly I don't believe the f3 has a USB OTG i/o port, I believe it is
>>> device only USB so there will be no OTG_FS in it. Do you have a part number
>>> for the chip you are targeting?
>>>
>>> --Chuck
>>>
>>>
>>>
>>> On Wed, Jul 16, 2014 at 12:16 PM, Luis Rodrigues <[email protected]>
>>> wrote:
>>>
>>>> Hi all,
>>>> I'm a complete noobie at programming MCUs, I'm trying to port some code
>>>> made for smt32f4 to a stm32f3.
>>>>
>>>> I have some code that:
>>>> nvic_enable_irq(NVIC_OTG_FS_IRQ);
>>>> rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
>>>> rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
>>>>
>>>>
>>>> None of these are defined for F3, can someone please point me in the
>>>> right direction?
>>>>
>>>> Best,
>>>> Luis
>>>>
>>>> PS:
>>>> From what I've seen in include files I guess RCC_AHB1ENR becomes
>>>> RCC_AHBENR but
>>>> but not really sure
>>>>
>>>>
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>>>
>>
>
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