Hi forum,
I am making USB communication. The PC is receiver and the board is transmitter, but i cant find decent functions to run the USB. I only inited USB_HS as alternative function. What should i do next ?
void InitUSBHSCDC(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure USB HS as alternate function */
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
// ID Vbus DM DP
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
/* USB HS configuration */
/* Enable GPIOB clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
/* Enable USB HS clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_OTG_HS, ENABLE);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource12, GPIO_AF_OTG_HS);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_OTG_HS);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_OTG_HS);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_OTG_HS);
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
Hey dvd_video,
There is a USB example in the default demo package for IAR: https://www.olimex.com/Products/ARM/ST/STM32-E407/resources/STM32-E_revE+_demo.zip (https://www.olimex.com/Products/ARM/ST/STM32-E407/resources/STM32-E_revE+_demo.zip).
Best regards,
Lub/OLIMEX