#第七届立创电赛#USB鼠标转PS2鼠标 - 立创电子设计大赛

主页 >

Zoologist

赛事

第七届立创电子设计开源大赛

版本协议

GPL 3.0

视频

描述

<div class="document"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"> 市面上仍然有一些使用 PS/2 接口的主机：比如：工控机或者示波器。但是目前市面上 PS2 鼠标已经非常少见了，特别是没有无线PS2鼠标。这次的目标是制作一个将无线鼠标转接为 PS/2的设备。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"> 首次公开，原创。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"> 使用GPL3.0开源协议 请在竞赛阶段填写 ↓ <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"> 选择ESP32 S3 来完成工作，ESP32 S3 是外设非常丰富的SoC，出了支持 WIFI 和蓝牙之外，还支持 USB Host, 因此，这次使用它来解析USB 鼠标信息，然后转为 PS2 信号。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> 代码部分使用 Arduino 来编写： #include <elapsedMillis.h> #include <usb/usb_host.h> #include "show_desc.hpp" #include "usbhhelp.hpp" #include <esp32-ps2dev.h> const int CLK_PIN = 21; const int DATA_PIN = 13; esp32_ps2dev::PS2Mouse mouse(CLK_PIN, DATA_PIN); long int Elsp=0; bool isMouse = false; bool isMouseReady = false; uint8_t MouseInterval; bool isMousePolling = false; elapsedMillis MouseTimer; bool bLeftBtn = false; bool bRightBtn = false; bool bMidBtn = false; const size_t Mouse_IN_BUFFER_SIZE = 8; usb_transfer_t *MouseIn = NULL; int16_t mousemap(int value) { if (value < -255) { return -255; } if ((value >= -255) && (value <= 255)) { return value; } if (value > 255) { return 255; } } boolean bLPressed=false,bRPressed=false,bMPressed=false; void Mouse_transfer_cb(usb_transfer_t *transfer) { if (Device_Handle == transfer->device_handle) { isMousePolling = false; if (transfer->status == 0) { if (transfer->actual_num_bytes == Mouse_IN_BUFFER_SIZE) { uint8_t *const p = transfer->data_buffer; ESP_LOGI("", "HID report: %02x %02x %02x %02x %02x %02x %02x %02x", p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); if ((bLPressed==false)&&((p[0]&0x01)!=0)) { mouse.press(esp32_ps2dev::PS2Mouse::Button::LEFT); ESP_LOGI("", "Left Pressed"); bLPressed=true; } if ((bRPressed==false)&&((p[0]&0x02)!=0)) { mouse.press(esp32_ps2dev::PS2Mouse::Button::RIGHT); ESP_LOGI("", "Right Pressed"); bRPressed=true; } if ((bMPressed==false)&&((p[0]&0x04)!=0)) { mouse.press(esp32_ps2dev::PS2Mouse::Button::MIDDLE); ESP_LOGI("", "Middle Pressed"); bMPressed=true; } if ((bLPressed)&&((p[0]&0x01)==0)) { mouse.release(esp32_ps2dev::PS2Mouse::Button::LEFT); ESP_LOGI("", "Left Released"); bLPressed=false; } if ((bRPressed)&&((p[0]&0x02)==0)) { mouse.release(esp32_ps2dev::PS2Mouse::Button::RIGHT); ESP_LOGI("", "Right Released"); bRPressed=false; } if ((bMPressed)&&((p[0]&0x04)==0)) { mouse.release(esp32_ps2dev::PS2Mouse::Button::MIDDLE); ESP_LOGI("", "Middle Released"); bMPressed=false; } int16_t x, y; int8_t z; x = p[3] << 8; x = p[2] + x; y = p[5] << 8; y = -(p[4] + y); z = -p[6]; ESP_LOGI("", "x: %d %x %x", x, p[2], p[3]); ESP_LOGI("", "y: %d %x %x", y, p[5], p[4]); ESP_LOGI("", "z: %d", z); //if (millis()-Elsp>15) { mouse.move(x,y,z); //Elsp=millis(); //} } else { ESP_LOGI("", "Mouse boot hid transfer too short or long"); } } else { ESP_LOGI("", "transfer->status %d", transfer->status); } } } void check_interface_desc_boot_Mouse(const void *p) { const usb_intf_desc_t *intf = (const usb_intf_desc_t *)p; if ((intf->bInterfaceClass == USB_CLASS_HID) && (intf->bInterfaceSubClass == 0x01) && (intf->bInterfaceProtocol == 0x02)) { isMouse = true; ESP_LOGI("", "Claiming a boot Mouse!"); esp_err_t err = usb_host_interface_claim(Client_Handle, Device_Handle, intf->bInterfaceNumber, intf->bAlternateSetting); if (err != ESP_OK) ESP_LOGI("", "usb_host_interface_claim failed: %x", err); } } void prepare_endpoint(const void *p) { const usb_ep_desc_t *endpoint = (const usb_ep_desc_t *)p; esp_err_t err; // must be interrupt for HID if ((endpoint->bmAttributes & USB_BM_ATTRIBUTES_XFERTYPE_MASK) != USB_BM_ATTRIBUTES_XFER_INT) { ESP_LOGI("", "Not interrupt endpoint: 0x%02x", endpoint->bmAttributes); return; } if (endpoint->bEndpointAddress & USB_B_ENDPOINT_ADDRESS_EP_DIR_MASK) { err = usb_host_transfer_alloc(Mouse_IN_BUFFER_SIZE, 0, &MouseIn); if (err != ESP_OK) { MouseIn = NULL; ESP_LOGI("", "usb_host_transfer_alloc In fail: %x", err); return; } MouseIn->device_handle = Device_Handle; MouseIn->bEndpointAddress = endpoint->bEndpointAddress; MouseIn->callback = Mouse_transfer_cb; MouseIn->context = NULL; isMouseReady = true; MouseInterval = endpoint->bInterval; ESP_LOGI("", "USB boot Mouse ready"); } else { ESP_LOGI("", "Ignoring interrupt Out endpoint"); } } void show_config_desc_full(const usb_config_desc_t *config_desc) { // Full decode of config desc. const uint8_t *p = &config_desc->val[0]; static uint8_t USB_Class = 0; uint8_t bLength; for (int i = 0; i < config_desc->wTotalLength; i += bLength, p += bLength) { bLength = *p; if ((i + bLength) <= config_desc->wTotalLength) { const uint8_t bDescriptorType = *(p + 1); switch (bDescriptorType) { case USB_B_DESCRIPTOR_TYPE_DEVICE: ESP_LOGI("", "USB Device Descriptor should not appear in config"); break; case USB_B_DESCRIPTOR_TYPE_CONFIGURATION: show_config_desc(p); break; case USB_B_DESCRIPTOR_TYPE_STRING: ESP_LOGI("", "USB string desc TBD"); break; case USB_B_DESCRIPTOR_TYPE_INTERFACE: USB_Class = show_interface_desc(p); check_interface_desc_boot_Mouse(p); break; case USB_B_DESCRIPTOR_TYPE_ENDPOINT: show_endpoint_desc(p); if (isMouse && MouseIn == NULL) prepare_endpoint(p); break; case USB_B_DESCRIPTOR_TYPE_DEVICE_QUALIFIER: // Should not be config config? ESP_LOGI("", "USB device qual desc TBD"); break; case USB_B_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION: // Should not be config config? ESP_LOGI("", "USB Other Speed TBD"); break; case USB_B_DESCRIPTOR_TYPE_INTERFACE_POWER: // Should not be config config? ESP_LOGI("", "USB Interface Power TBD"); break; case 0x21: if (USB_Class == USB_CLASS_HID) { show_hid_desc(p); } break; default: ESP_LOGI("", "Unknown USB Descriptor Type: 0x%x", bDescriptorType); break; } } else { ESP_LOGI("", "USB Descriptor invalid"); return; } } } void setup() { //Serial.begin(115200); usbh_setup(show_config_desc_full); mouse.begin(); } void loop() { usbh_task(); if (isMouseReady && !isMousePolling && (MouseTimer > MouseInterval)) { MouseIn->num_bytes = Mouse_IN_BUFFER_SIZE; esp_err_t err = usb_host_transfer_submit(MouseIn); if (err != ESP_OK) { ESP_LOGI("", "usb_host_transfer_submit In fail: %x", err); } isMousePolling = true; MouseTimer = 0; } } <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"> <img src="//image.lceda.cn/pullimage/gp0f9gAHYfDxpFrV9YVQCJVLEVKC7y14dcMLtzND.png" alt="" width="1535" height="448"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"> <img src="//image.lceda.cn/pullimage/VR4srxCQbPMb47KyPnp4y9zXwGn1qqA9RP1Qd3ec.jpeg" alt="" width="2736" height="3648"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"> 视频要求：请横屏拍摄，分辨率不低于1280×720，格式Mp4/Mov，单个视频大小限100M内； 视频标题：立创电赛：{项目名称}-{视频模块名称}；如立创电赛：《自动驾驶》-团队介绍。 更多详情：<a href="/posts/06c94d90c2c447dfbd9ed7339ff4a5b1" target="_blank">https://diy.szlcsc.com/posts/d76d9cb41705430e9a54e7a5feed07a5</a> </div>

文档

第七届立创电赛#USB鼠标转PS2鼠标

BOM

ID	Name	Designator	Footprint	Quantity
1	PS/2 键盘鼠标接口（反）	1	PS/2 键盘鼠标接口(反)	1
2	1uf	C1,C2	C1206	2
3	0.1uf	C3	C1206	1
4	22uf	C4	C1206	1
5	10pf	C5,C6	C1206	2
6	Header2.0*5	H1	HEADER2.0*5	1
7	Jumper for PS2 Power	H3	HDR-TH_2P-P2.54-V	1
8	3P PH2.54	POWER1	CONN-TH_3P-P2.50_3PIN	1
9	AP2306(N-MOS)	Q1,Q2	SOT-23(SOT-23-3)	2
10	10K	R1	R1206	1
11	1K	R2,R3,R4,R6,R7,R8	R1206	6
12	12K	R5	R1206	1
13	ESP32-S3-WROOM-1U-N4	U1	WIRELM-SMD_ESP32-S3-WROOM-1U	1
14	TLV1117LV33DCYR	U3	SOT-223_L6.7-W3.5-P2.30-BR	1
15	PWR	U5	LED0402-R-RD	1
16	JTJ-USB-AF-08	USB1	USB-A-TH__USB-AF-90	1