Difference between revisions of "STM32MP157x-DKx - hardware description"

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1 Article purpose[edit]

This article provides an overview of STM32MP157X_DKX STM32MP157x-DKx Discovery kits. It briefly describes:

  • how to assemble the different elements provided in the commercial box
  • what are the different components present on the board
  • how to connect the board to external material
  • how to configure the board for boot
  • what are the configurations of the connector pins
Warning.png This article is only an introduction to the
STM32MP157X_DKX
STM32MP157x-DKx Discovery kits. Detailed information can be found in the
STM32MP157X
STM32MP157x-
DKX
DKx discovery board user manual.

2 Board assembly[edit]

STM32MP157X-DKX - board assembly

3 Board overview[edit]

Position Description
1 MB1272 motherboard
2 MB1407 daughterboard DSI display (480x800 pixels): only for the STM32MP157X-DK2 Discovery kit
3 microSD card
4 DSI ribbon cable: only for the STM32MP157X-DK2 Discovery kit
5 Spacer for DSI display daughterboard: only for the STM32MP157X-DK2 Discovery kit
File:STM32MP157X-DKX corner HDMI.png
STM32MP157X-DKX Discovery kit (front side view from HDMI connector)
Board name: STM32MP157X-DK2
Position Description
10 (CN1) 2 USB Type-A (host)
11 (CN5) 2 USB Type-A (host)
12 (CN7) USB Type-C (DRP)
13 (CN9) HDMI connector
14 (LD4) ST-Link LINK/V2-1 LED (bicolor)[1]
15 (CN11) USB micro-B (ST-Link LINK/V2-1)
16 (LD8) User LED (blue)[2]
17 (LD7) User LED (orange)[2]
18 (B4) User button (USER2)
19 (U13) STM32MP157X 12x12
20 (LD6) User LED (red))[2]
21 (B3) User button (USER1)
22 (LD5) User LED (green)[2]
23 (B2) Reset button
24 (U20) Audio codec (Cirrus CS42L51)
25 (CN10) Audio headset
26 (B1) Power-on button
27 (CN8) Ethernet


File:STM32MP157X-DKX corner microSD card.png
STM32MP157X-DKX Discovery kit (front side view from microSD card connector)
Board name: STM32MP157X-DK2
Position Description
10 (CN1) 2 USB Type-A (host)
26 (CN8) Ethernet
30 (LD3) Ethernet LED (green)[3]
31 (CN6) USB Type-C (power 5V-3A)
32 (LD2) Power LED (green)[4]
33 (U8) WLAN + Bluetooth (muRata LBEE5KL1DX): only for STM32MP157X-DK2 Discovery kit
34 (CN4) DSI LCD connector
35 (LD1) USB Type-A LED (red)[5]
36 (CN2) GPIO expansion


File:STM32MP157X-DKX back side.png
STM32MP157X-DKX Discovery kit (back side)
Board name: STM32MP157X-DK2
Position Description
40 (CN13) Arduino Uno connector (socket 10x1)
41 (CN14) Arduino Uno connector (socket 8x1)
42 (LD9) Arduino LED (green)
43 (CN15) microSD 3.0 card
44 (SW1) Boot mode selection
45 (CN16) Arduino Uno connector (socket 8x1)
46 (CN17) Arduino Uno connector (socket 6x1)


Details about some LEDs:

  1. LD4: flashes red if ST-Link LINK/V2-1 connection not established, else green
  2. 2.02.12.22.3 LD5, LD6, LD7, LD8: some user LEDs are used to reflect the system activity, while the others are left free to be used by the application, as explained in LEDs and buttons on STM32 MPU boards article
  3. LD3: flashes green when Ethernet connection established
  4. LD2: turns green if power connection established
  5. LD1: turns red if USB Type-A connection established

4 Board connection[edit]

The connections shown in the picture below are the ones recommended to start with the STM32MP157X_DKX Discovery kits. As shown in the board overview, other connectors are available for these boards (for example HDMI). STM32MP157X-DKX - board connections

5 Boot related switches[edit]

The following table defines the different combination of the boot mode selection switches:

Info.png "Boot 1" is grounded (always 0) on the Discovery kits
Boot modes
Boot mode Boot 0 Boot 1 Boot 2
Forced USB boot
for flashing
0 0 0
Not supported 1 0 0
Engineering boot 0 0 1
microSD card 1 0 1

Below the corresponding configurations of the boot related switches (SW1 on the board overview picture):

6 GPIO mapping[edit]

6.1 GPIO expansion connector[edit]

The pins of the GPIO expansion connector (CN2 on the board overview picture) are described in the following table:

GPIO expansion connector
DescriptionFunction STM32 pin Pin number Pin numberDescription STM32 pin Function
3V3 - 1 2VIN - 5V
GPIO2 / I2C5_SDA PA12 3 4VIN - 5V
GPIO3 / I2C5_SCL PA11 5 6 - GND
GPIO4 / MCO1 PA8 7 8 PB10 GPIO14 / USART3_TX
GND - 9 10 PB12 GPIO15 / USART3_RX
GPIO17 / USART3_RTS PG8 11 12 PI5 GPIO18 / SAI2_SCKA(1)
GPIO27 / SDMMC3_D3 PD7 13 14 - GND
GPIO22 / SDMMC3_CK PG15 15 16 PF1 GPIO23 / SDMMC3_CMD
3V3 - 17 18 PF0 GPIO24 / SDMMC3_D0
GPIO10 / SPI5_MOSI PF9 19 20 - GND
GPIO9 / SPI5_MISO PF8 21 22 PF4 GPIO25 / SDMMC3_D1
GPIO11 / SPI5_SCK PF7 23 24 PF6 GPIO8 / SPI5_NSS
GND - 25 26PI _PF3 GPIO7
ID_SD I2C1_SDA(2) PF15 27 28 ID_SC PD12 I2C1_SCL(2)
GPIO5 / MCO2 PG2 29 30 - GND
GPIO6 / TIM5_CH2 PH11 31 32 PD13 GPIO12 / TIM4_CH2
GPIO13 / TIM3_CH2 PC7 33 34 - GND
GPIO19 / SAI2_FSA(1) PI7 35 36 PB13 GPIO16 / USART3_CTS
GPIO26 / SDMMC3_D2 PF5 37 38 PI6 GPIO20 / SAI2_SDA(1)
GND - 39 40 PF11 GPIO21 / SAI2_SDB(1)

(1) The SAI2 is shared between the audio codec and the GPIO expansion connector. By default, the SAI2 is connected to the audio codec thanks to Solder Bridge SB13, SB14, SB15, and SB16: more details in the STM32MP157x-DKx discovery board user manual.
(2) Warning: the I2C1 is used to communicate with several on-board peripherals, but is also available on the GPIO expansion connector. So, it is important to ensure that new components added on the I2C1 connection will not disturb the bus behavior.

6.2 Arduino Uno connector[edit]

The pins of the Arduino Uno connector are described in the following table:

Arduino Uno connector
Socket 10x1 (CN13)
Description Pin number
I2C5_SCL D15
I2C5_SDA D14
VREF+ AVDD
GND GND
SPI4_SCK D13
SPI4_MISO D12
TIM1_CH4, SPI4_MOSI D11
TIM1_CH2, SPI4_NSS D10
TIM12_CH1 D9
GPIO D8
names Signal name STM32 pin Comment
1 ARD_D8 PG3 IO
2 ARD_D9 PH6 TIM12_CH1
3 ARD_D10 PE11 SPI4_NSS and TIM1_CH2
4 ARD_D11 PE14 SPI4_MOSI and TIM1_CH4
5 ARD_D12 PE13 SPI4_MISO
6 ARD_D13 PE12 SPI4_SCK
7 GND - GND
8 VREFP - VREF+
9 ARD_D14 PA12 I2C5_SDA
10 ARD_D15 PA11 I2C5_SCL
GPIO
Socket 8x1 (CN14)
Description Pin number names Signal name D7
TIM1_CH1 D6
TIM4_CH4 D5
GPIO D4
STM32 pin Comment
1 ARD_D0 PE7 USART7_RX
2 ARD_D1 PE8 USART7_TX
3 ARD_D2 PE1 IO
4 ARD_D3 PD14 TIM4_CH3
D3 5GPIO ARD_D4 D2
USART7_TX D1
USART7_RX D0
PE10 IO
6 ARD_D5 PD15 TIM4_CH4
7 ARD_D6 PE9 TIM1_CH1
8 ARD_D7 PD1 IO
socket 8x1 (CN16)
Description Pin number
------ ------
3V3 IOREF
RESET NRST
3V3 3V3
5V 5V
GND GND
GND GND
---- VIN
names Signal name STM32 pin Comment
1 NC - NC (reserved for test)
2 3V3 - IOREF 3V3
3 NRST NRST NRST
4 3V3 - 3V3
5 5V - 5V
6 GND - GND
7 GND - GND
8 VIN - Not connected
Socket 6x1 (CN17)
Description Pin number names Signal name STM32 pin Comment
1 A0 PF14 ADC1_IN0
A0 2 A1 PF13 ADC1_IN1 A1
ADC23 A2 ANA0 ADC1_IN6
A2 4 ADC2_IN2 A3 ANA1 ADC1_IN13IN2
5 A4 PC3 / PA12 ADC1_IN6IN13
6 A5 PF12 / PA11

6.3 User buttons and LEDs[edit]

The GPIO assignments for the user buttons and LEDs are described in the following table. Refer to LEDs and buttons on STM32 MPU boards article to get information on the functional mapping for each one.

GPIO for user buttons and LEDs
LED color and label Button label GPIO
Green LD5 (*) USER1 (*) PA14
Red LD6 (*) USER2 (*) PA13
Orange LD7 - PH7
Template:Blue LD8 - PD11
Warning.png (*) Both a LED and a button are connected to the same GPIO, with inverted logic for the LED control (so the LED is switched on when the GPIO output is set to low).
<noinclude>

{{ToBeReviewedByProductMarketing}} 
{{ArticleMainWriter | Jean-ChristopheT}}
{{ReviewersList | NathalieS, BernardP, GeraldB, LaurentB}}
{{ArticleApprovedVersion | Jean-ChristopheT |BernardP, GeraldB | No previous approved version Jean-ChristopheT - 9Aug'18 | AnneJ - 09Aug'18 - 8429 | 9Aug'18}}
01Feb'19}}[[Category:STM32MP15 Discovery kits|02]]
[[Category:STM32MP15]]
[[Category:ST boards]]</noinclude>


==Article purpose==
This article provides an overview of STM32MP157X_DKXSTM32MP157x-DKx Discovery kits. It briefly describes:
* how to assemble the different elements provided in the commercial box
* what are the different components present on the board
* how to connect the board to external material
* how to configure the board for boot
* what are the configurations of the connector pins

{{ReviewsComments|JCT w851: add a link to the [STM32MP15 resources]] article when the STM32MP157X-DKX user manual will be added in this article}}Warning|This article is only an introduction to the STM32MP157X_DKXSTM32MP157x-DKx Discovery kits. Detailed information can be found in the STM32MP157X-DKX user manual.[[STM32MP15 resources#STM32MP157x-DKx user manual|'''STM32MP157x-DKx discovery board user manual''']].}}


==Board assembly==
{{:STM32MP157X-DKX - board assembly}}

==Board overview==
{|
|+ 
! Position !! Description                                               
|-
| 1 || [[MB1272]] motherboard
|-
| 2 || [[MB1407]] daughterboard DSI display (480x800 pixels): only for the STM32MP157X-'''DK2''' Discovery kit
|-
| 3 || microSD card
|-
| 4 || DSI ribbon cable: only for the STM32MP157X-'''DK2''' Discovery kit
|-
| 5 || Spacer for DSI display daughterboard: only for the STM32MP157X-'''DK2''' Discovery kit
|}

[[File: STM32MP157X-DKX_corner_HDMI.png|thumb|upright=4|left|STM32MP157X-DKX Discovery kit (front side view from HDMI connector) <br> Board name: '''STM32MP157X-DK2''']]
{|
|+ 
! Position !! Description                                               
|-
| 10 (<span id{{=}}"MB1272-CN1">'''CN1'''</span>) || 2 USB Type-A (host) 
|-
| 11 (<span id{{=}}"MB1272-CN5">'''CN5'''</span>) || 2 USB Type-A (host) 
|-
| 12 (<span id{{=}}"MB1272-CN7">'''CN7'''</span>) || USB Type-C (DRP)
|-
| 13 (<span id{{=}}"MB1272-CN9">'''CN9'''</span>) || HDMI connector
|-
| 14 (<span id{{=}}"MB1272-LD4">'''LD4'''</span>) || ST-LinkLINK/V2-1 LED (bicolor)<ref>LD4: flashes red if ST-LinkLINK/V2-1 connection not established, else green</ref> 

|-
| 15 (<span id{{=}}"MB1272-CN11">'''CN11'''</span>) || USB micro-B (ST-Link LINK/V2-1)
|-
| 16 (<span id{{=}}"MB1272-LD8">'''LD8'''</span>) || User LED (blue)<ref name="User LEDs">LD5, LD6, LD7, LD8: some user LEDs are used to reflect the system activity, while the others are left free to be used by the application, as explained in [[LEDs and buttons on STM32 MPU boards]] article</ref>

|-
| 17 (<span id{{=}}"MB1272-LD7">'''LD7'''</span>) || User LED (orange)<ref name="User LEDs"/>

|-
| 18 (<span id{{=}}"MB1272-B4">'''B4'''</span>) || User button (USER2)
|-
| 19 (<span id{{=}}"MB1272-U13">'''U13'''</span>) || STM32MP157X 12x12
|-
| 20 (<span id{{=}}"MB1272-LD6">'''LD6'''</span>) || User LED (red))<ref name="User LEDs"/>

|-
| 21 (<span id{{=}}"MB1272-B3">'''B3'''</span>) || User button (USER1)
|-
| 22 (<span id{{=}}"MB1272-LD5">'''LD5'''</span>) || User LED (green)<ref name="User LEDs"/>

|-
| 23 (<span id{{=}}"MB1272-B2">'''B2'''</span>) || Reset button
|-
| 24 (<span id{{=}}"MB1272-U20">'''U20'''</span>) || Audio codec (Cirrus CS42L51)
|-
| 25 (<span id{{=}}"MB1272-CN10">'''CN10'''</span>) || Audio headset
|-
| 26 (<span id{{=}}"MB1272-B1">'''B1'''</span>) || Power-on button
|-
| 27 ('''CN8''') || Ethernet
|}
<br clear=all>


[[File: STM32MP157X-DKX_corner_microSD_card.png|thumb|upright=4|left|STM32MP157X-DKX Discovery kit (front side view from microSD card connector) <br> Board name: '''STM32MP157X-DK2''']]
{|
|+ 
! Position !! Description                                               
|-
| 10 ('''CN1''') || 2 USB Type-A (host)
|-
| 26 (<span id{{=}}"MB1272-CN8">'''CN8'''</span>) || Ethernet
|-
| 30 (<span id{{=}}"MB1272-LD3">'''LD3'''</span>) || Ethernet LED (green)<ref>LD3: flashes green when Ethernet connection established</ref>

|-
| 31 (<span id{{=}}"MB1272-CN6">'''CN6'''</span>) || USB Type-C (power 5V-3A)
|-
| 32 (<span id{{=}}"MB1272-LD2">'''LD2'''</span>) || Power LED (green)<ref>LD2: turns green if power connection established</ref>

|-
| 33 (<span id{{=}}"MB1272-U8">'''U8'''</span>) || WLAN + Bluetooth (muRata LBEE5KL1DX): only for STM32MP157X-'''DK2''' Discovery kit
|-
| 34 (<span id{{=}}"MB1272-CN4">'''CN4'''</span>) || DSI LCD connector
|-
| 35 (<span id{{=}}"MB1272-LD1">'''LD1'''</span>) || USB Type-A LED (red)<ref>LD1: turns red if USB Type-A connection established</ref>

|-
| 36 (<span id{{=}}"MB1272-CN2">'''[[#GPIO expansion connector|CN2]]'''</span>) || GPIO expansion 
|}
<br clear=all>


[[File: STM32MP157X-DKX_back_side.png|thumb|upright=4|left|STM32MP157X-DKX Discovery kit (back side) <br> Board name: '''STM32MP157X-DK2''']]
{|
|+ 
! Position !! Description                                               
|-
| 40 (<span id{{=}}"MB1272-CN13">'''[[#Arduino Uno connector|CN13]]'''</span>) || Arduino Uno connector (socket 10x1)
|-
| 41 (<span id{{=}}"MB1272-CN14">'''[[#Arduino Uno connector|CN14]]'''</span>) || Arduino Uno connector (socket 8x1)
|-
| 42 (<span id{{=}}"MB1272-LD9">'''LD9'''</span>) || Arduino LED (green)
|-
| 43 (<span id{{=}}"MB1272-CN15">'''CN15'''</span>) || microSD 3.0 card
|-
| 44 (<span id{{=}}"MB1272-SW1">'''[[#Boot related switches|SW1]]'''</span>) || Boot mode selection
|-
| 45 (<span id{{=}}"MB1272-CN16">'''[[#Arduino Uno connector|CN16]]'''</span>) || Arduino Uno connector (socket 8x1)
|-
| 46 (<span id{{=}}"MB1272-CN17">'''[[#Arduino Uno connector|CN17]]'''</span>) || Arduino Uno connector (socket 6x1)
|}<br clear=all>

Details about some LEDs:<references />


==Board connection==
The connections shown in the picture below are the ones recommended to start with the  STM32MP157X_DKX Discovery kits. As shown in the [[#Board overview|board overview]], other connectors are available for these boards (for example HDMI).
{{:STM32MP157X-DKX - board connections}}

==Boot related switches==
The following table defines the different combination of the boot mode selection switches:
{{Info|"Boot 1" is grounded (always 0) on the Discovery kits}}
{| style="text-align:center"
|+ Boot modes
! Boot mode !! Boot 0 !! Boot 1 !! Boot 2
|-
| Forced USB boot<br>for flashing || 0 || 0 || 0
|-
| Not supported || 1 || 0 || 0
|-
| Engineering boot || 0 || 0 || 1
|-
| microSD card || 1 || 0 || 1
|}

Below the corresponding configurations of the boot related switches ([[#MB1272-SW1|SW1]] on the board overview picture):
{|
| [[File:STM32MP157X-DKX_boot_switches_forced_USB.png|thumb|center|300px|link=|Forced USB boot for flashing]] || [[File:STM32MP157X-DKX_boot_switches_engineering_mode.png|thumb|center|300px|link=|Engineering boot]] || [[File:STM32MP157X-DKX_boot_switches_microSD_card.png|thumb|center|300px|link=|Boot from microSD card]]
|}

==GPIO mapping==

===GPIO expansion connector===
The pins of the GPIO expansion connector ([[#MB1272-CN2|CN2]] on the board overview picture) are described in the following table:

{| style="text-align:center;"
|+ GPIO expansion connector
! Description !! Pin number !! Pin number !! Description
|-
| 3V3 || 1 || 2 || VIN
|-
| I2C5_SDA || 3 || 4 || VIN
|-
| I2C5_SCL || 5 || 6 || GND
|-
| MCO1 || 7 || 8 || Function !! STM32 pin !! Pin !! Pin !! STM32 pin !! Function
|-
| 3V3 || - || 1 || 2 || - || 5V
|-
| GPIO2 / I2C5_SDA || PA12 || 3 || 4 || - || 5V
|-
| GPIO3 / I2C5_SCL || PA11 || 5 || 6 || - || GND
|-
| GPIO4 / MCO1 || PA8 || 7 || 8 || PB10 || GPIO14 / <span id{{=}}"USART3_TX">USART3_TX</span>

|-
| GND || - || 9 || 10 || USART3_RX
|-
| USART3_RTS || 11 || 12 || SAI2_SCKA
|-
| SDMMC3_D3 || 13 || 14 || GND
|-
| SDMMC3_CK || 15 || 16 || SDMMC3_CMD
|-
| 3V3 || 17 || 18 || SDMMC3_D0
|-
| SPI5_MOSI || 19 || 20 || GND
|-
| SPI5_MISO || 21 || 22 || SDMMC3_D1
|-
| SPI5_SCK || 23 || 24 || SPI5_NSS
|-
| GND || 25 || 26 || PI_GPIO7
|-
| ID_SD || 27 || 28 || ID_SC
|-
| MCO2 || 29 || 30 || GND
|-
| TIM5_CH2 || 31 || 32 || TIM4_CH2
|-
| TIM3_CH2 || 33 || 34 || GND
|-
| SAI2_FSA || 35 || 36 || USART3_CTS
|-
| SDMMC3_D2 || 37 || 38 || SAI2_SDA
|-
| GND || 39 || 40 || SAI2_SDB
|}
PB12 || GPIO15 / USART3_RX
|-
| GPIO17 / USART3_RTS || PG8 || 11 || 12 || PI5 || GPIO18 / SAI2_SCKA<sup>{{Highlight|(1)}}</sup>

|-
| GPIO27 / SDMMC3_D3 || PD7 || 13 || 14 || - || GND
|-
| GPIO22 / SDMMC3_CK || PG15 || 15 || 16 || PF1 || GPIO23 / SDMMC3_CMD
|-
| 3V3 || - || 17 || 18 || PF0 || GPIO24 / SDMMC3_D0
|-
| GPIO10 / SPI5_MOSI || PF9 || 19 || 20 || - || GND
|-
| GPIO9 / SPI5_MISO || PF8 || 21 || 22 || PF4 || GPIO25 / SDMMC3_D1
|-
| GPIO11 / SPI5_SCK || PF7 || 23 || 24 || PF6 || GPIO8 / SPI5_NSS
|-
| GND || - || 25 || 26 || PF3 || GPIO7
|-
| I2C1_SDA<sup>{{Highlight|(2)}}</sup> || PF15 || 27 || 28 || PD12 || I2C1_SCL<sup>{{Highlight|(2)}}</sup>

|-
| GPIO5 / MCO2 || PG2 || 29 || 30 || - || GND
|-
| GPIO6 / TIM5_CH2 || PH11 || 31 || 32 || PD13 || GPIO12 / TIM4_CH2
|-
| GPIO13 / TIM3_CH2 || PC7 || 33 || 34 || - || GND
|-
| GPIO19 / SAI2_FSA<sup>{{Highlight|(1)}}</sup> || PI7 || 35 || 36 || PB13 || GPIO16 / USART3_CTS
|-
| GPIO26 / SDMMC3_D2 || PF5 || 37 || 38 || PI6 || GPIO20 / SAI2_SDA<sup>{{Highlight|(1)}}</sup>

|-
| GND || - || 39 || 40 || PF11 || GPIO21 / SAI2_SDB<sup>{{Highlight|(1)}}</sup>

|}<sup>{{Highlight|(1)}}</sup> The SAI2 is shared between the audio codec and the GPIO expansion connector. By default, the SAI2 is connected to the audio codec thanks to Solder Bridge SB13, SB14, SB15, and SB16: more details in the [[STM32MP15 resources#STM32MP157x-DKx user manual|STM32MP157x-DKx discovery board user manual]].<br>
<sup>{{Highlight|(2)}}</sup> Warning: the I2C1 is used to communicate with several on-board peripherals, but is also available on the GPIO expansion connector. So, it is important to ensure that new components added on the I2C1 connection will not disturb the bus behavior.
===Arduino Uno connector===
The pins of the Arduino Uno connector are described in the following table:

{| class="wikitable"
! colspan="42" | Arduino Uno connector
|- style="vertical-align:top;"
|
{| style="text-align:center;"
|+ Socket 10x1 ([[#MB1272-CN2|CN13]])
! Description !! Pin number
|-
| I2C5_SCL || D15
|-
| I2C5_SDA || D14
|-
| VREF+ || AVDD
|-
| GND || GND
|-
| SPI4_SCK || D13
|-
| SPI4_MISO || D12
|-
| TIM1_CH4, SPI4_MOSI || D11
|-
| TIM1_CH2, SPI4_NSS || D10
|-
| TIM12_CH1 || D9
|-
| GPIO || D8
|Pin names !! Signal name !! STM32 pin !! Comment
|-
| 1 || ARD_D8 || PG3 || IO
|-
| 2 || ARD_D9 || PH6 || TIM12_CH1
|-
| 3 || ARD_D10 || PE11 || SPI4_NSS and TIM1_CH2
|-
| 4 || ARD_D11 || PE14 || SPI4_MOSI and TIM1_CH4 
|-
| 5 || ARD_D12 || PE13 || SPI4_MISO
|-
| 6 || ARD_D13 || PE12 || SPI4_SCK
|-
| 7 || GND || - || GND
|-
| 8 || VREFP || - || VREF+
|-
| 9 || ARD_D14 || PA12 || I2C5_SDA
|-
| 10 || ARD_D15 || PA11 || I2C5_SCL 
|}
||
{| style="text-align:center;"
|+ Socket 8x1 ([[#MB1272-CN2|CN14]])
! Description !! Pin number
|-
| GPIO || D7
|-
| TIM1_CH1 || D6
|-
| TIM4_CH4 || D5
|-
| GPIO || D4
|-
| TIM4_CH3 || D3
|-
| GPIO || D2
|-
| USART7_TX || D1
|-
| USART7_RX || D0
|}
|Pin names !! Signal name !! STM32 pin !! Comment
|-
| 1 || ARD_D0 || PE7 || USART7_RX
|-
| 2 || ARD_D1 || PE8 || USART7_TX
|-
| 3 || ARD_D2 || PE1 || IO
|-
| 4 || ARD_D3 || PD14 || TIM4_CH3
|-
| 5 || ARD_D4 || PE10 || IO
|-
| 6 || ARD_D5 || PD15 || TIM4_CH4
|-
| 7 || ARD_D6 || PE9 || TIM1_CH1
|-
| 8 || ARD_D7 || PD1 || IO
|}
|- style="vertical-align:top;"|
{| style="text-align:center;"
|+ socket 8x1 ([[#MB1272-CN2|CN16]])
|-
! Description !! Pin number
|-
| ------ || ------
|-
| 3V3 || IOREF
|-
| RESET || NRST
|-
| 3V3 || 3V3
|-
| 5V || 5V
|-
| GND || GND
|-
| GND || GND
|-
| ---- || VIN
|Pin names !! Signal name !! STM32 pin !! Comment
|-
| 1 || NC  || - || NC (reserved for test)
|-
| 2 || 3V3 || - || IOREF 3V3
|-
| 3 || NRST || NRST || NRST
|-
| 4 || 3V3 || - || 3V3
|-
| 5 || 5V || - || 5V
|-
| 6 || GND || - || GND
|-
| 7 || GND || - || GND
|-
| 8 || VIN || - || Not connected
|}
||
{| style="text-align:center;"
|+ Socket 6x1 ([[#MB1272-CN2|CN17]])
! Description !! Pin number
|-
| ADC1_IN0 || A0
|-
| ADC1_IN1 || A1
|-
| ADC2_IN6 || A2
|-
| ADC2_IN2 || A3
|-
| ADC1_IN13 || A4
|-
| ADC1_IN6 || A5
|Pin names !! Signal name !! STM32 pin !! Comment
|-
| 1 || A0 || PF14 || ADC1_IN0
|-
| 2 || A1 || PF13 || ADC1_IN1
|-
| 3 || A2 || ANA0 || ADC1_IN6
|-
| 4 || A3 || ANA1 || ADC1_IN2
|-
| 5 || A4 || PC3 / PA12 || ADC1_IN13
|-
| 6 || A5 || PF12 / PA11 || 
|}
|}

===User buttons and LEDs===
The GPIO assignments for the user buttons and LEDs are described in the following table. Refer to [[LEDs and buttons on STM32 MPU boards]] article to get information on the functional mapping for each one.

{| style="text-align:center;"
|+ GPIO for user buttons and LEDs
! LED color and label
! Button label
! GPIO
|-
| {{Green|Green}} LD5 (*)
| USER1 (*)
| PA14
|-
| {{Red|Red}} LD6 (*)
| USER2 (*)
| PA13
|-
| {{Orange|Orange}} LD7
| -
| PH7
|-
| {{Blue|Blue}} LD8
| -
| PD11
|}

{{Warning| (*) Both a LED and a button are connected to the same GPIO, with inverted logic for the LED control (so the LED is switched on when the GPIO output is set to low).}}
Line 1: Line 1:
 
<noinclude>
 
<noinclude>
 
{{ToBeReviewedByProductMarketing}}  
 
{{ToBeReviewedByProductMarketing}}  
 
 
{{ArticleMainWriter | Jean-ChristopheT}}
 
{{ArticleMainWriter | Jean-ChristopheT}}
 
{{ReviewersList | NathalieS, BernardP, GeraldB, LaurentB}}
 
{{ReviewersList | NathalieS, BernardP, GeraldB, LaurentB}}
{{ArticleApprovedVersion | Jean-ChristopheT |BernardP, GeraldB | No previous approved version | AnneJ - 09Aug'18 - 8429 | 9Aug'18}}
+
{{ArticleApprovedVersion | Jean-ChristopheT |BernardP, GeraldB | Jean-ChristopheT - 9Aug'18 | AnneJ - 09Aug'18 - 8429 | 01Feb'19}}
 
 
 
[[Category:STM32MP15 Discovery kits|02]]
 
[[Category:STM32MP15 Discovery kits|02]]
 
[[Category:STM32MP15]]
 
[[Category:STM32MP15]]
Line 12: Line 10:
   
 
==Article purpose==
 
==Article purpose==
This article provides an overview of STM32MP157X_DKX Discovery kits. It briefly describes:
+
This article provides an overview of STM32MP157x-DKx Discovery kits. It briefly describes:
 
* how to assemble the different elements provided in the commercial box
 
* how to assemble the different elements provided in the commercial box
 
* what are the different components present on the board
 
* what are the different components present on the board
Line 19: Line 17:
 
* what are the configurations of the connector pins
 
* what are the configurations of the connector pins
   
{{ReviewsComments|JCT w851: add a link to the [STM32MP15 resources]] article when the STM32MP157X-DKX user manual will be added in this article}}
+
{{Warning|This article is only an introduction to the STM32MP157x-DKx Discovery kits. Detailed information can be found in the [[STM32MP15 resources#STM32MP157x-DKx user manual|'''STM32MP157x-DKx discovery board user manual''']].}}
This article is only an introduction to the STM32MP157X_DKX Discovery kits. Detailed information can be found in the STM32MP157X-DKX user manual.
 
   
 
==Board assembly==
 
==Board assembly==
Line 54: Line 51:
 
| 13 (<span id{{=}}"MB1272-CN9">'''CN9'''</span>) || HDMI connector
 
| 13 (<span id{{=}}"MB1272-CN9">'''CN9'''</span>) || HDMI connector
 
|-
 
|-
| 14 (<span id{{=}}"MB1272-LD4">'''LD4'''</span>) || ST-Link LED (bicolor)<ref>LD4: flashes red if ST-Link connection not established, else green</ref>  
+
| 14 (<span id{{=}}"MB1272-LD4">'''LD4'''</span>) || ST-LINK/V2-1 LED (bicolor)<ref>LD4: flashes red if ST-LINK/V2-1 connection not established, else green</ref>  
 
|-
 
|-
| 15 (<span id{{=}}"MB1272-CN11">'''CN11'''</span>) || USB micro-B (ST-Link V2-1)
+
| 15 (<span id{{=}}"MB1272-CN11">'''CN11'''</span>) || USB micro-B (ST-LINK/V2-1)
 
|-
 
|-
 
| 16 (<span id{{=}}"MB1272-LD8">'''LD8'''</span>) || User LED (blue)<ref name="User LEDs">LD5, LD6, LD7, LD8: some user LEDs are used to reflect the system activity, while the others are left free to be used by the application, as explained in [[LEDs and buttons on STM32 MPU boards]] article</ref>
 
| 16 (<span id{{=}}"MB1272-LD8">'''LD8'''</span>) || User LED (blue)<ref name="User LEDs">LD5, LD6, LD7, LD8: some user LEDs are used to reflect the system activity, while the others are left free to be used by the application, as explained in [[LEDs and buttons on STM32 MPU boards]] article</ref>
Line 166: Line 163:
 
{| style="text-align:center;"
 
{| style="text-align:center;"
 
|+ GPIO expansion connector
 
|+ GPIO expansion connector
! Description !! Pin number !! Pin number !! Description
+
! Function !! STM32 pin !! Pin !! Pin !! STM32 pin !! Function
 
|-
 
|-
| 3V3 || 1 || 2 || VIN
+
| 3V3 || - || 1 || 2 || - || 5V
 
|-
 
|-
| I2C5_SDA || 3 || 4 || VIN
+
| GPIO2 / I2C5_SDA || PA12 || 3 || 4 || - || 5V
 
|-
 
|-
| I2C5_SCL || 5 || 6 || GND
+
| GPIO3 / I2C5_SCL || PA11 || 5 || 6 || - || GND
 
|-
 
|-
| MCO1 || 7 || 8 || <span id{{=}}"USART3_TX">USART3_TX</span>
+
| GPIO4 / MCO1 || PA8 || 7 || 8 || PB10 || GPIO14 / <span id{{=}}"USART3_TX">USART3_TX</span>
 
|-
 
|-
| GND || 9 || 10 || USART3_RX
+
| GND || - || 9 || 10 || PB12 || GPIO15 / USART3_RX
 
|-
 
|-
| USART3_RTS || 11 || 12 || SAI2_SCKA
+
| GPIO17 / USART3_RTS || PG8 || 11 || 12 || PI5 || GPIO18 / SAI2_SCKA<sup>{{Highlight|(1)}}</sup>
 
|-
 
|-
| SDMMC3_D3 || 13 || 14 || GND
+
| GPIO27 / SDMMC3_D3 || PD7 || 13 || 14 || - || GND
 
|-
 
|-
| SDMMC3_CK || 15 || 16 || SDMMC3_CMD
+
| GPIO22 / SDMMC3_CK || PG15 || 15 || 16 || PF1 || GPIO23 / SDMMC3_CMD
 
|-
 
|-
| 3V3 || 17 || 18 || SDMMC3_D0
+
| 3V3 || - || 17 || 18 || PF0 || GPIO24 / SDMMC3_D0
 
|-
 
|-
| SPI5_MOSI || 19 || 20 || GND
+
| GPIO10 / SPI5_MOSI || PF9 || 19 || 20 || - || GND
 
|-
 
|-
| SPI5_MISO || 21 || 22 || SDMMC3_D1
+
| GPIO9 / SPI5_MISO || PF8 || 21 || 22 || PF4 || GPIO25 / SDMMC3_D1
 
|-
 
|-
| SPI5_SCK || 23 || 24 || SPI5_NSS
+
| GPIO11 / SPI5_SCK || PF7 || 23 || 24 || PF6 || GPIO8 / SPI5_NSS
 
|-
 
|-
| GND || 25 || 26 || PI_GPIO7
+
| GND || - || 25 || 26 || PF3 || GPIO7
 
|-
 
|-
| ID_SD || 27 || 28 || ID_SC
+
| I2C1_SDA<sup>{{Highlight|(2)}}</sup> || PF15 || 27 || 28 || PD12 || I2C1_SCL<sup>{{Highlight|(2)}}</sup>
 
|-
 
|-
| MCO2 || 29 || 30 || GND
+
| GPIO5 / MCO2 || PG2 || 29 || 30 || - || GND
 
|-
 
|-
| TIM5_CH2 || 31 || 32 || TIM4_CH2
+
| GPIO6 / TIM5_CH2 || PH11 || 31 || 32 || PD13 || GPIO12 / TIM4_CH2
 
|-
 
|-
| TIM3_CH2 || 33 || 34 || GND
+
| GPIO13 / TIM3_CH2 || PC7 || 33 || 34 || - || GND
 
|-
 
|-
| SAI2_FSA || 35 || 36 || USART3_CTS
+
| GPIO19 / SAI2_FSA<sup>{{Highlight|(1)}}</sup> || PI7 || 35 || 36 || PB13 || GPIO16 / USART3_CTS
 
|-
 
|-
| SDMMC3_D2 || 37 || 38 || SAI2_SDA
+
| GPIO26 / SDMMC3_D2 || PF5 || 37 || 38 || PI6 || GPIO20 / SAI2_SDA<sup>{{Highlight|(1)}}</sup>
 
|-
 
|-
| GND || 39 || 40 || SAI2_SDB
+
| GND || - || 39 || 40 || PF11 || GPIO21 / SAI2_SDB<sup>{{Highlight|(1)}}</sup>
 
|}
 
|}
  +
<sup>{{Highlight|(1)}}</sup> The SAI2 is shared between the audio codec and the GPIO expansion connector. By default, the SAI2 is connected to the audio codec thanks to Solder Bridge SB13, SB14, SB15, and SB16: more details in the [[STM32MP15 resources#STM32MP157x-DKx user manual|STM32MP157x-DKx discovery board user manual]].<br>
  +
<sup>{{Highlight|(2)}}</sup> Warning: the I2C1 is used to communicate with several on-board peripherals, but is also available on the GPIO expansion connector. So, it is important to ensure that new components added on the I2C1 connection will not disturb the bus behavior.
   
 
===Arduino Uno connector===
 
===Arduino Uno connector===
Line 213: Line 212:
   
 
{| class="wikitable"
 
{| class="wikitable"
! colspan="4" | Arduino Uno connector
+
! colspan="2" | Arduino Uno connector
 
|- style="vertical-align:top;"
 
|- style="vertical-align:top;"
 
|
 
|
 
{| style="text-align:center;"
 
{| style="text-align:center;"
 
|+ Socket 10x1 ([[#MB1272-CN2|CN13]])
 
|+ Socket 10x1 ([[#MB1272-CN2|CN13]])
! Description !! Pin number
+
! Pin names !! Signal name !! STM32 pin !! Comment
 
|-
 
|-
| I2C5_SCL || D15
+
| 1 || ARD_D8 || PG3 || IO
 
|-
 
|-
| I2C5_SDA || D14
+
| 2 || ARD_D9 || PH6 || TIM12_CH1
 
|-
 
|-
| VREF+ || AVDD
+
| 3 || ARD_D10 || PE11 || SPI4_NSS and TIM1_CH2
 
|-
 
|-
| GND || GND
+
| 4 || ARD_D11 || PE14 || SPI4_MOSI and TIM1_CH4
 
|-
 
|-
| SPI4_SCK || D13
+
| 5 || ARD_D12 || PE13 || SPI4_MISO
 
|-
 
|-
| SPI4_MISO || D12
+
| 6 || ARD_D13 || PE12 || SPI4_SCK
 
|-
 
|-
| TIM1_CH4, SPI4_MOSI || D11
+
| 7 || GND || - || GND
 
|-
 
|-
| TIM1_CH2, SPI4_NSS || D10
+
| 8 || VREFP || - || VREF+
 
|-
 
|-
| TIM12_CH1 || D9
+
| 9 || ARD_D14 || PA12 || I2C5_SDA
 
|-
 
|-
| GPIO || D8
+
| 10 || ARD_D15 || PA11 || I2C5_SCL
 
|}
 
|}
 
||
 
||
 
{| style="text-align:center;"
 
{| style="text-align:center;"
 
|+ Socket 8x1 ([[#MB1272-CN2|CN14]])
 
|+ Socket 8x1 ([[#MB1272-CN2|CN14]])
! Description !! Pin number
+
! Pin names !! Signal name !! STM32 pin !! Comment
 
|-
 
|-
| GPIO || D7
+
| 1 || ARD_D0 || PE7 || USART7_RX
 
|-
 
|-
| TIM1_CH1 || D6
+
| 2 || ARD_D1 || PE8 || USART7_TX
 
|-
 
|-
| TIM4_CH4 || D5
+
| 3 || ARD_D2 || PE1 || IO
 
|-
 
|-
| GPIO || D4
+
| 4 || ARD_D3 || PD14 || TIM4_CH3
 
|-
 
|-
| TIM4_CH3 || D3
+
| 5 || ARD_D4 || PE10 || IO
 
|-
 
|-
| GPIO || D2
+
| 6 || ARD_D5 || PD15 || TIM4_CH4
 
|-
 
|-
| USART7_TX || D1
+
| 7 || ARD_D6 || PE9 || TIM1_CH1
 
|-
 
|-
| USART7_RX || D0
+
| 8 || ARD_D7 || PD1 || IO
 
|}
 
|}
||
+
|- style="vertical-align:top;"
  +
|
 
{| style="text-align:center;"
 
{| style="text-align:center;"
 
|+ socket 8x1 ([[#MB1272-CN2|CN16]])
 
|+ socket 8x1 ([[#MB1272-CN2|CN16]])
 
|-
 
|-
! Description !! Pin number
+
! Pin names !! Signal name !! STM32 pin !! Comment
 
|-
 
|-
| ------ || ------
+
| 1 || NC  || - || NC (reserved for test)
 
|-
 
|-
| 3V3 || IOREF
+
| 2 || 3V3 || - || IOREF 3V3
 
|-
 
|-
| RESET || NRST
+
| 3 || NRST || NRST || NRST
 
|-
 
|-
| 3V3 || 3V3
+
| 4 || 3V3 || - || 3V3
 
|-
 
|-
| 5V || 5V
+
| 5 || 5V || - || 5V
 
|-
 
|-
| GND || GND
+
| 6 || GND || - || GND
 
|-
 
|-
| GND || GND
+
| 7 || GND || - || GND
 
|-
 
|-
| ---- || VIN
+
| 8 || VIN || - || Not connected
 
|}
 
|}
 
||
 
||
 
{| style="text-align:center;"
 
{| style="text-align:center;"
 
|+ Socket 6x1 ([[#MB1272-CN2|CN17]])
 
|+ Socket 6x1 ([[#MB1272-CN2|CN17]])
! Description !! Pin number
+
! Pin names !! Signal name !! STM32 pin !! Comment
 
|-
 
|-
| ADC1_IN0 || A0
+
| 1 || A0 || PF14 || ADC1_IN0
 
|-
 
|-
| ADC1_IN1 || A1
+
| 2 || A1 || PF13 || ADC1_IN1
 
|-
 
|-
| ADC2_IN6 || A2
+
| 3 || A2 || ANA0 || ADC1_IN6
 
|-
 
|-
| ADC2_IN2 || A3
+
| 4 || A3 || ANA1 || ADC1_IN2
 
|-
 
|-
| ADC1_IN13 || A4
+
| 5 || A4 || PC3 / PA12 || ADC1_IN13
 
|-
 
|-
| ADC1_IN6 || A5
+
| 6 || A5 || PF12 / PA11 ||
 
|}
 
|}
 
|}
 
|}