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1# HPM6750EVK2
2
3## Overview
4
5The HPM6750 is a dual-core flashless MCU running 816Mhz. It has a 2MB continuous on-chip ram. Also, it provides various memory interfaces, including SDRAM, Quad SPI NOR Flash, SD/eMMC. It integrates rich audio and video interfaces, including LCD, pixel DMA, camera， and I2S audio interfaces.
6
7 ![hpm6750evk2](doc/hpm6750evk2.png "hpm6750evk2")
8
9## Hardware
10
11- HPM6750IVM MCU (816MHz, 2MB OCRAM)
12- Onboard Memory
13  - 256Mb SDRAM
14  - 128Mb Quad SPI NOR Flash
15- Display & Camera
16  - LCD connector
17  - Camera (DVP)
18- Ethernet
19  - 1000 Mbits PHY
20  - 100 Mbits PHY
21- USB
22  - USB type C (USB 2.0 OTG) connector x3
23- Audio
24  - Line in
25  - Mic
26  - DAO
27- Others
28  - TF Slot
29  - RGB LED
30  - CAN
31- Expansion port
32  - Motor control
33
34## DIP Switch S1
35
36- Bit 1 and 2 controls boot mode
37
38| bit[2:1] | Description                  |
39| -------- | ---------------------------- |
40| OFF, OFF | Boot from Quad SPI NOR flash |
41| OFF, ON  | Serial boot                  |
42| ON, OFF  | ISP                          |
43
44(lab_hpm6750_evk2_board)=
45
46## Button
47
48(lab_hpm6750_evk2_board_buttons)=
49
50| Name         | FUNCTIONS                                      |
51| ------------ | ---------------------------------------------- |
52| PBUTN (SW1)  | Power Button, TinyUF2 Boot Button, GPIO Button |
53| WBUTN (SW2)  | WAKE UP Button                                 |
54| RESETN (SW3) | Reset Button                                   |
55
56## Plug-in
57
58- The ADC/DAC reference voltage is selected as follows:
59
60  | Connection | Description         |
61  | ---------- | ------------------- |
62  | J108[2, 3]       |  Reference voltage |
63
64## Resistor Switch
65
66- GigE POP `R177-R182`
67  | Status     | Description |
68  | ---------- | ----------- |
69  | Welding    | Network     |
70  | Disconnect | Motor       |
71
72## Pin Description
73
74- UART0 Pin:
75
76The UART0 pin leads to three positions:
77
78| Function | Pin  | Position1 | Position2  | Position3 |
79| -------- | ---- | --------- | ---------- | --------- |
80| UART0.TX | PY06 | J109[1]   | JTAG P4[7] | USB2UART0 |
81| UART0.RX | PY07 | J109[3]   | JTAG P4[9] | USB2UART0 |
82
83> **_Note_:**To avoid abnormal functions caused by multiple connections, please ensure that there is only one connection. For example, if the JTAG interface is connected to UART0, USB2UART0 interface send data to UART0 will be abnormal.
84
85- SPI Pin：
86
87| Function  | Pin  | Position |
88| --------- | ---- | -------- |
89| SPI2.CSN  | PE31 | J11[7]   |
90| SPI2.SCLK | PE27 | J11[8]   |
91| SPI2.MISO | PE28 | J11[9]   |
92| SPI2.MOSI | PE30 | J11[10]  |
93
94- I2C Pin：：
95
96| Function | Pin  | Position |
97| -------- | ---- | -------- |
98| I2C0.SCL | PZ11 | J11[3]   |
99| I2C0.SDA | PZ10 | J11[4]   |
100
101- UART for core1 debug console：
102
103| Function   | Pin  | Position |
104| ---------- | ---- | -------- |
105| UART13.TXD | PZ09 | J11[5]   |
106| UART13.RXD | PZ08 | J11[6]   |
107
108- PWM Pin:
109
110| Function  | Pin  | Position |
111| --------- | ---- | -------- |
112| PWM2.P[0] | PD31 | J10[14]  |
113| PWM2.P[1] | PD30 | J10[13]  |
114
115- ACMP Pin
116
117| Function   | Pin  | Position |
118| ---------- | ---- | -------- |
119| CMP.INN6   | PE21 | J10[8]   |
120| CMP.COMP_1 | PE25 | J10[6]   |
121
122- GPTMR Pin
123
124| Function      | Pin  | Position |
125| ------------- | ---- | -------- |
126| GPTMR4.CAPT_1 | PE25 | J10[6]   |
127| GPTMR5.COMP_2 | PD24 | J10[18]  |
128| GPTMR5.COMP_3 | PD23 | J10[16]  |
129
130- ADC12 Pin
131
132| Function          | Pin   | Position |
133| ----------------- | ----- | -------- |
134| Reference Voltage | VREFH | J108[2]  |
135| ADC0/1/2.VINP11   | PE25  | J10[6]   |
136| ADC0/1/2.VINP10   | PE24  | J10[7]   |
137| ADC0/1/2.VINP7    | PE21  | J10[8]   |
138
139- ADC16 Pin
140
141| Function          | Pin   | Position |
142| ----------------- | ----- | -------- |
143| Reference Voltage | VREFH | J108[2]  |
144| ADC3.INA2         | PE29  | J10[5]   |
145
146- headphone interface
147
148| Function        | Position | Standard |
149| --------------- | -------- | -------- |
150| 3.5mm headphone | J13      | OMTP |
151
152- audio input interface
153
154| Function   | Position |
155| ---------- | -------- |
156| microphone | P3       |
157
158- DAO interface
159
160| Function | Position |
161| -------- | -------- |
162| DAO-SPK  | J12      |
163
164- Ethernet PPS Pin
165
166| Function    | Position |
167| ----------- | -------- |
168| ENET0.EVTO0 | U11[3]   |
169
170- UART pin for uart_software_rx_idle sample or uart_rx_timeout sample
171
172| Function   | Position |
173| ---------- | -------- |
174| UART13.TXD | J11[5]   |
175| UART13.RXD | J11[6]   |
176
177- TRGMUX pin for uart_software_rx_idle sample
178
179| Function       | Position |
180| -------------- | -------- |
181| TRGM2_P9(PD19) | J10[20]  |
182
183- Motor Pin:
184
185  Need to remove all the resistors selected by `GigEPOP` silkscreen and make sure all the resistors selected by `MOTOR POP` silkscreen are soldered, the development board list is as follows.
186
187  Using the high-frequency injection demo, need to remove PWM ground resistors R436-R441.
188
189  Refer to section [DRV-LV50A-MP1907 Motor Driver Board ](lab_drv_lv50a_mp1907) for configuration
190