mirror of
https://github.com/eddyem/stm32samples.git
synced 2026-02-28 11:54:30 +03:00
change USB for common files
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@@ -26,8 +26,6 @@ void USB_setup(){
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USBPU_OFF();
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RCC->APB1ENR |= RCC_APB1ENR_USBEN;
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RCC->APB2ENR |= USB_RCC;
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// USB pullup (PA15) - pushpull output
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GPIOA->CRH |= CRH(15, CNF_PPOUTPUT | MODE_SLOW);
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USB->CNTR = USB_CNTR_FRES; // Force USB Reset
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for(uint32_t ctr = 0; ctr < 72000; ++ctr) nop(); // wait >1ms
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//uint32_t ctr = 0;
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@@ -64,12 +62,12 @@ int EP_Init(uint8_t number, uint8_t type, uint16_t txsz, uint16_t rxsz, void (*f
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countrx = 31 + rxsz / 32;
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}
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USB_BTABLE->EP[number].USB_ADDR_TX = lastaddr;
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endpoints[number].tx_buf = (uint16_t *)(USB_BTABLE_BASE + lastaddr*2);
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endpoints[number].tx_buf = (uint16_t *)(USB_BTABLE_BASE + lastaddr * ACCESSZ);
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endpoints[number].txbufsz = txsz;
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lastaddr += txsz;
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USB_BTABLE->EP[number].USB_COUNT_TX = 0;
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USB_BTABLE->EP[number].USB_ADDR_RX = lastaddr;
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endpoints[number].rx_buf = (uint16_t *)(USB_BTABLE_BASE + lastaddr*2);
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endpoints[number].rx_buf = (uint8_t *)(USB_BTABLE_BASE + lastaddr * ACCESSZ);
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lastaddr += rxsz;
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USB_BTABLE->EP[number].USB_COUNT_RX = countrx << 10;
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endpoints[number].func = func;
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@@ -82,17 +80,15 @@ void usb_lp_can_rx0_isr(){
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usbON = 0;
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// Reinit registers
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USB->CNTR = USB_CNTR_RESETM | USB_CNTR_CTRM | USB_CNTR_SUSPM | USB_CNTR_WKUPM;
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USB->ISTR = 0;
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// Endpoint 0 - CONTROL
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// ON USB LS size of EP0 may be 8 bytes, but on FS it should be 64 bytes!
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lastaddr = LASTADDR_DEFAULT;
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// clear address, leave only enable bit
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USB->DADDR = USB_DADDR_EF;
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USB_Dev.USB_Status = USB_STATE_DEFAULT;
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USB->ISTR = ~USB_ISTR_RESET;
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if(EP_Init(0, EP_TYPE_CONTROL, USB_EP0_BUFSZ, USB_EP0_BUFSZ, EP0_Handler)){
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return;
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}
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USB->ISTR = ~USB_ISTR_RESET;
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}
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if(USB->ISTR & USB_ISTR_CTR){
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// EP number
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@@ -105,12 +101,10 @@ void usb_lp_can_rx0_isr(){
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if(USB->ISTR & USB_ISTR_DIR){ // OUT interrupt - receive data, CTR_RX==1 (if CTR_TX == 1 - two pending transactions: receive following by transmit)
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if(n == 0){ // control endpoint
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if(epstatus & USB_EPnR_SETUP){ // setup packet -> copy data to conf_pack
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EP_Read(0, (uint16_t*)&setup_packet);
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ep0dbuflen = 0;
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EP_Read(0, setupdatabuf);
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// interrupt handler will be called later
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}else if(epstatus & USB_EPnR_CTR_RX){ // data packet -> push received data to ep0databuf
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ep0dbuflen = endpoints[0].rx_cnt;
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EP_Read(0, (uint16_t*)&ep0databuf);
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EP_Read(0, ep0databuf);
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}
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}
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}
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@@ -127,4 +121,3 @@ void usb_lp_can_rx0_isr(){
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USB->ISTR = ~USB_ISTR_WKUP;
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}
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}
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