![](/media/cache/profiles/951e5e38cb91253e90bcae5ccd7baf3c.jpg.50x50_q85.jpg)
I have ported my old project “pNesX” game console emulator to the nucleo.
Dependencies: SDFileSystem mbed
Intro
I have ported my old project “pNesX” to the STM32 Nucleo. The pNesX is a NES emulator for the PlayStation that I have created 16 years ago!
Emulation part was almost without change, the sound part was newly added.
Parts
STM32 Nucleo F446RE |
QVGA 2.2 TFT SPI (with the SD card slot) |
Audio jack(TS or TRS) |
USB Connector |
Register 100k, 10k, 4.7k, 100 |
Capacitor 0.01uF, 2.2uF |
Breadboard |
Wires |
Computer Speakers |
USB GamePad |
Wiring diagram
TFT J2 | Nucleo |
---|---|
VCC | 3V3 |
GND | GND |
CS | PB_5(D4) |
Reset | PA_10(D2) Pull Up(100k) |
D/C | PA_8(D7) |
MOSI | PA_7(D11) |
SCK | PA_5(D13) |
LED | LED-100ohm-3V3 |
MISO | PA_6(D12) |
TFT J4 | Nucleo |
---|---|
SD_CS | PA_9 |
SD_MOSI | PB_15 |
SD_MISO | PB_14 |
SD_SCK | PB_13 |
Audio | Nucleo |
---|---|
TIP | PA_4(A2) |
USB con. | Nucleo |
---|---|
GND | GND |
+ | PA_12 |
- | PA_11 |
5V | 5V |
Limitations
- Since the rest of the RAM is about 50kbyte, maximum capacity of the game ROM is about 50kbyte.
- The length of the file name up to 32 characters.
- The number of files in the folder is up to 100.
Used Library
- SDFileSystem by Neil Thiessen
- F401RE-USBHost by Norimasa Okamoto
- USBHostGamepad by Yuuichi Akagawa
USBHost/USBHALHost2_F401RE.cpp
- Committer:
- beaglescout007
- Date:
- 2016-04-03
- Revision:
- 0:3dac1f1bc9e0
File content as of revision 0:3dac1f1bc9e0:
#if defined(TARGET_NUCLEO_F401RE)||defined(TARGET_NUCLEO_F411RE)||defined(TARGET_NUCLEO_F446RE) #include "USBHALHost.h" // usbh_conf.c HCD_HandleTypeDef hhcd_USB_OTG_FS; static void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd); // stm32f4xx_it.c extern "C" { void OTG_FS_IRQHandler(void) { HAL_NVIC_ClearPendingIRQ(OTG_FS_IRQn); HAL_HCD_IRQHandler(&hhcd_USB_OTG_FS); } } // stm32f4xx_hal_hcd.c static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum); static void HCD_HC_OUT_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum); static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd); static void HCD_Port_IRQHandler(HCD_HandleTypeDef *hhcd); /** * @brief This function handles HCD interrupt request. * @param hhcd: HCD handle * @retval none */ static void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t i = 0 , interrupt = 0; /* ensure that we are in device mode */ if (USB_GetMode(hhcd->Instance) == USB_OTG_MODE_HOST) { /* avoid spurious interrupt */ if(__HAL_HCD_IS_INVALID_INTERRUPT(hhcd)) { return; } if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT)) { /* incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT); } if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR)) { /* incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR); } if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE)) { /* incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE); } if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_MMIS)) { /* incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_MMIS); } /* Handle Host Disconnect Interrupts */ if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT)) { /* Cleanup HPRT */ USBx_HPRT0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG ); /* Handle Host Port Interrupts */ HAL_HCD_Disconnect_Callback(hhcd); USB_InitFSLSPClkSel(hhcd->Instance ,HCFG_48_MHZ ); __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT); } /* Handle Host Port Interrupts */ if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HPRTINT)) { HCD_Port_IRQHandler (hhcd); } /* Handle Host SOF Interrupts */ if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_SOF)) { HAL_HCD_SOF_Callback(hhcd); __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF); } /* Handle Host channel Interrupts */ if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HCINT)) { interrupt = USB_HC_ReadInterrupt(hhcd->Instance); for (i = 0; i < hhcd->Init.Host_channels ; i++) { if (interrupt & (1 << i)) { if ((USBx_HC(i)->HCCHAR) & USB_OTG_HCCHAR_EPDIR) { HCD_HC_IN_IRQHandler (hhcd, i); } else { HCD_HC_OUT_IRQHandler (hhcd, i); } } } __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_HCINT); } /* Handle Rx Queue Level Interrupts */ if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_RXFLVL)) { USB_MASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL); HCD_RXQLVL_IRQHandler (hhcd); USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL); } } } /** * @brief This function handles Host Channel IN interrupt requests. * @param hhcd: HCD handle * @param chnum : Channel number * This parameter can be a value from 1 to 15 * @retval none */ static void HCD_HC_IN_IRQHandler (HCD_HandleTypeDef *hhcd, uint8_t chnum) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_AHBERR) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR); __HAL_HCD_UNMASK_HALT_HC_INT(chnum); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_ACK) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_STALL) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); hhcd->hc[chnum].state = HC_STALL; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL); USB_HC_Halt(hhcd->Instance, chnum); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_DTERR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); hhcd->hc[chnum].state = HC_DATATGLERR; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR); } if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_FRMOR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_XFRC) { if (hhcd->Init.dma_enable) { hhcd->hc[chnum].xfer_count = hhcd->hc[chnum].xfer_len - \ (USBx_HC(chnum)->HCTSIZ & USB_OTG_HCTSIZ_XFRSIZ); } hhcd->hc[chnum].state = HC_XFRC; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC); if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL)|| (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else if(hhcd->hc[chnum].ep_type == EP_TYPE_INTR) { USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM; __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else if(hhcd->hc[chnum].ep_type == EP_TYPE_ISOC) { USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM; hhcd->hc[chnum].urb_state = URB_DONE; HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); } hhcd->hc[chnum].toggle_in ^= 1; } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_CHH) { __HAL_HCD_MASK_HALT_HC_INT(chnum); if(hhcd->hc[chnum].state == HC_XFRC) { hhcd->hc[chnum].urb_state = URB_DONE; } else if (hhcd->hc[chnum].state == HC_NAK) { hhcd->hc[chnum].urb_state = URB_DONE; } else if (hhcd->hc[chnum].state == HC_STALL) { hhcd->hc[chnum].urb_state = URB_STALL; } else if (hhcd->hc[chnum].state == HC_XACTERR) { hhcd->hc[chnum].urb_state = URB_NOTREADY; } else if (hhcd->hc[chnum].state == HC_DATATGLERR) { hhcd->hc[chnum].urb_state = URB_ERROR; } __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH); HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_TXERR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); hhcd->hc[chnum].state = HC_XACTERR; USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_NAK) { if(hhcd->hc[chnum].ep_type == EP_TYPE_INTR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); } else if (hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) { /* re-activate the channel */ USBx_HC(chnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHDIS; USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; } else if (hhcd->hc[chnum].ep_type == EP_TYPE_BULK) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); } hhcd->hc[chnum].state = HC_NAK; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } } /** * @brief This function handles Host Channel OUT interrupt requests. * @param hhcd: HCD handle * @param chnum : Channel number * This parameter can be a value from 1 to 15 * @retval none */ static void HCD_HC_OUT_IRQHandler (HCD_HandleTypeDef *hhcd, uint8_t chnum) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_AHBERR) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR); __HAL_HCD_UNMASK_HALT_HC_INT(chnum); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_ACK) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK); if( hhcd->hc[chnum].do_ping == 1) { hhcd->hc[chnum].state = HC_NYET; __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); hhcd->hc[chnum].urb_state = URB_NOTREADY; } } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_NYET) { hhcd->hc[chnum].state = HC_NYET; __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_FRMOR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_XFRC) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC); hhcd->hc[chnum].state = HC_XFRC; } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_STALL) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL); __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); hhcd->hc[chnum].state = HC_STALL; } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_NAK) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); hhcd->hc[chnum].state = HC_NAK; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_TXERR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); hhcd->hc[chnum].state = HC_XACTERR; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR); } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_DTERR) { __HAL_HCD_UNMASK_HALT_HC_INT(chnum); USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR); hhcd->hc[chnum].state = HC_DATATGLERR; } else if ((USBx_HC(chnum)->HCINT) & USB_OTG_HCINT_CHH) { __HAL_HCD_MASK_HALT_HC_INT(chnum); if(hhcd->hc[chnum].state == HC_XFRC) { hhcd->hc[chnum].urb_state = URB_DONE; if (hhcd->hc[chnum].ep_type == EP_TYPE_BULK) { hhcd->hc[chnum].toggle_out ^= 1; } } else if (hhcd->hc[chnum].state == HC_NAK) { hhcd->hc[chnum].urb_state = URB_NOTREADY; } else if (hhcd->hc[chnum].state == HC_NYET) { hhcd->hc[chnum].urb_state = URB_NOTREADY; hhcd->hc[chnum].do_ping = 0; } else if (hhcd->hc[chnum].state == HC_STALL) { hhcd->hc[chnum].urb_state = URB_STALL; } else if(hhcd->hc[chnum].state == HC_XACTERR) { hhcd->hc[chnum].urb_state = URB_NOTREADY; } else if (hhcd->hc[chnum].state == HC_DATATGLERR) { hhcd->hc[chnum].urb_state = URB_ERROR; } __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH); HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); } } /** * @brief This function handles Rx Queue Level interrupt requests. * @param hhcd: HCD handle * @retval none */ static void HCD_RXQLVL_IRQHandler (HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint8_t channelnum =0; uint32_t pktsts; uint32_t pktcnt; uint32_t temp = 0; temp = hhcd->Instance->GRXSTSP ; channelnum = temp & USB_OTG_GRXSTSP_EPNUM; pktsts = (temp & USB_OTG_GRXSTSP_PKTSTS) >> 17; pktcnt = (temp & USB_OTG_GRXSTSP_BCNT) >> 4; switch (pktsts) { case GRXSTS_PKTSTS_IN: /* Read the data into the host buffer. */ if ((pktcnt > 0) && (hhcd->hc[channelnum].xfer_buff != (void *)0)) { USB_ReadPacket(hhcd->Instance, hhcd->hc[channelnum].xfer_buff, pktcnt); /*manage multiple Xfer */ hhcd->hc[channelnum].xfer_buff += pktcnt; hhcd->hc[channelnum].xfer_count += pktcnt; if((USBx_HC(channelnum)->HCTSIZ & USB_OTG_HCTSIZ_PKTCNT) > 0) { /* re-activate the channel when more packets are expected */ USBx_HC(channelnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHDIS; USBx_HC(channelnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; hhcd->hc[channelnum].toggle_in ^= 1; } } break; case GRXSTS_PKTSTS_DATA_TOGGLE_ERR: break; case GRXSTS_PKTSTS_IN_XFER_COMP: case GRXSTS_PKTSTS_CH_HALTED: default: break; } } /** * @brief This function handles Host Port interrupt requests. * @param hhcd: HCD handle * @retval none */ static void HCD_Port_IRQHandler (HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; __IO uint32_t hprt0, hprt0_dup; /* Handle Host Port Interrupts */ hprt0 = USBx_HPRT0; hprt0_dup = USBx_HPRT0; hprt0_dup &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG ); /* Check wether Port Connect Detected */ if((hprt0 & USB_OTG_HPRT_PCDET) == USB_OTG_HPRT_PCDET) { if((hprt0 & USB_OTG_HPRT_PCSTS) == USB_OTG_HPRT_PCSTS) { USB_MASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_DISCINT); HAL_HCD_Connect_Callback(hhcd); } hprt0_dup |= USB_OTG_HPRT_PCDET; } /* Check whether Port Enable Changed */ if((hprt0 & USB_OTG_HPRT_PENCHNG) == USB_OTG_HPRT_PENCHNG) { hprt0_dup |= USB_OTG_HPRT_PENCHNG; if((hprt0 & USB_OTG_HPRT_PENA) == USB_OTG_HPRT_PENA) { if(hhcd->Init.phy_itface == USB_OTG_EMBEDDED_PHY) { if ((hprt0 & USB_OTG_HPRT_PSPD) == (HPRT0_PRTSPD_LOW_SPEED << 17)) { USB_InitFSLSPClkSel(hhcd->Instance ,HCFG_6_MHZ ); } else { USB_InitFSLSPClkSel(hhcd->Instance ,HCFG_48_MHZ ); } } else { if(hhcd->Init.speed == HCD_SPEED_FULL) { USBx_HOST->HFIR = (uint32_t)60000; } } HAL_HCD_Connect_Callback(hhcd); if(hhcd->Init.speed == HCD_SPEED_HIGH) { USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_DISCINT); } } else { /* Cleanup HPRT */ USBx_HPRT0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG ); USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_DISCINT); } } /* Check For an overcurrent */ if((hprt0 & USB_OTG_HPRT_POCCHNG) == USB_OTG_HPRT_POCCHNG) { hprt0_dup |= USB_OTG_HPRT_POCCHNG; } /* Clear Port Interrupts */ USBx_HPRT0 = hprt0_dup; } #endif