Olimex Driver
Overview¶
Zephyr applications use the olimex_stm32_e407 board configurationto run on the OLIMEX-STM32-E407 open source hardware. It is based onthe STMicroelectronics STM32F407ZG ARM Cortex-M4 CPU.
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Hardware¶
Information about the board can be found at theOLIMEX-STM32-E407 website and OLIMEX-STM32-E407 user manual.The ST STM32F407ZG Datasheet contains the processor’sinformation and the datasheet.
Supported Features¶
The olimex_stm32_e407 board configuration supports the followinghardware features:
| Interface | Controller | Driver/Component |
|---|---|---|
| NVIC | on-chip | nested vectoredinterrupt controller |
| SYSTICK | on-chip | system clock |
| UART | on-chip | serial port |
| GPIO | on-chip | gpio |
Other hardware features are not supported by the Zephyr kernel.
Pin Mapping¶
LED¶
- LED (green) = PC13
- PWR_LED (red) = power
External Connectors¶
JTAG/SWD debug
| PIN # | Signal Name | Pin # | Signal Name |
|---|---|---|---|
| 1 | +3.3V | 11 | |
| 2 | +3.3V | 12 | GND |
| 3 | PB4 / TRST | 13 | PB3 / TDO |
| 4 | GND | 14 | GND |
| 5 | PA15 / TDI | 15 | PB4 / TRST |
| 6 | GND | 16 | GND |
| 7 | PA13 / TMS | 17 | |
| 8 | GND | 18 | GND |
| 9 | PA14 / TCK | 19 | +5V_JTAG |
| 10 | GND | 20 | GND |
UEXT
| PIN # | Wire Name | STM32F407 port |
|---|---|---|
| 1 | +3.3V | |
| 2 | GND | |
| 3 | PC6/USART6_TX | PC6 |
| 4 | PC7/USART6_RX | PC7 |
| 5 | PB8/I2C1_SCL | PB8 |
| 6 | PB9/I2C1_SDA | PB9 |
| 7 | PC2/SPI2_MISO | PC2 |
| 8 | PC3/SPI2_MOSI | PC3 |
| 9 | PB10/SPI_SCK/UART3_TX | PB10 |
| 10 | RB7/UEXT_CS | PB7 |
Arduino Headers¶
CON1 power
| Pin | Signal Name | STM32F407 Pin# |
|---|---|---|
| RST | RESET | 23 |
| 3V3 | VCC (3V3) | N/A |
| 5V | VDD (5V) | N/A |
| GND | GND | N/A |
| GND | GND | N/A |
| VIN | VIN | N/A |
CON2 analog
| Pin | Signal Name | STM32F407 Pin# |
|---|---|---|
| A0 | PC0 | 26 |
| A1 | PF6 | 18 |
| A2 | PF7 | 19 |
| A3 | PF8 | 20 |
| A4 | PF9 | 21 |
| A5 | PF10 | 22 |
CON3 digital
| Pin | Signal Name | STM32F407 Pin# |
|---|---|---|
| D0 | PB7/USART1_RX | 137 |
| D1 | PB6/USART1_TX | 136 |
| D2 | PE2 | 1 |
| D3 | PE4 | 3 |
| D4 | PE5 | 4 |
| D5 | PR6 | 5 |
| D6 | PG7 | 92 |
| D7 | PG8 | 93 |
CON4 digital
| Pin | Signal Name | STM32F407 Pin# |
|---|---|---|
| D8 | PG12 | 35 |
| D9 | PG15 | 70 |
| D10 | PA4 | 40 |
| D11 | PB5 | 43 |
| D12 | PA6 | 42 |
| D13 | PA5 | 41 |
| GND | AGND | 31 |
| AREF | AREF | 32 |
PD
| PIN # | Signal Name | Pin # | Signal Name |
|---|---|---|---|
| 1 | +3.3V | 11 | PD8 |
| 2 | GND | 12 | PD9 |
| 3 | PD0 | 13 | PD10 |
| 4 | PD1 | 14 | PD11 |
| 5 | PD2/SD_MMC | 15 | PD12 |
| 6 | PD3 | 16 | PD13 |
| 7 | PD4 | 17 | PD14 |
| 8 | PD5 | 18 | PD15 |
| 9 | PD6 | 19 | +5V |
| 10 | PD7 | 20 | GND |
PE
| PIN # | Signal Name | Pin # | Signal Name |
|---|---|---|---|
| 1 | +3.3V | 11 | PE8 |
| 2 | GND | 12 | PE9 |
| 3 | PE0 | 13 | PE10 |
| 4 | PE1 | 14 | PE11 |
| 5 | PE2/D2 | 15 | PE12 |
| 6 | PE3 | 16 | PE13 |
| 7 | PE4/D3 | 17 | PE14 |
| 8 | PE5/D4 | 18 | PE15 |
| 9 | PE6/D5 | 19 | +5V |
| 10 | PE7 | 20 | GND |
PF
| PIN # | Signal Name | Pin # | Signal Name |
|---|---|---|---|
| 1 | +3.3V | 11 | PF8/A3 |
| 2 | GND | 12 | PF9/A4 |
| 3 | PF0 | 13 | PF10/A5 |
| 4 | PF1 | 14 | PF11/A6 |
| 5 | PF2 | 15 | PF12 |
| 6 | PF3 | 16 | PF13 |
| 7 | PF4 | 17 | PF14 |
| 8 | PF5 | 18 | PF15 |
| 9 | PF6/A1 | 19 | +5V |
| 10 | PF7/A2 | 20 | GND |
PG
| PIN # | Signal Name | Pin # | Signal Name |
|---|---|---|---|
| 1 | +3.3V | 11 | PG8/D7 |
| 2 | GND | 12 | PG9 |
| 3 | PG0 | 13 | PG10/UEXT_CS |
| 4 | PG1 | 14 | PG11/TX_EN |
| 5 | PG2 | 15 | PG12/D8 |
| 6 | PG3 | 16 | PG13/TXD0 |
| 7 | PG4 | 17 | PG14/TXD1 |
| 8 | PG5 | 18 | PG15/D9 |
| 9 | PG6 | 19 | +5V |
| 10 | PG7/D6 | 20 | GND |
System Clock¶
Olimex Drivers
OLIMEX-STM32-E407 has two external oscillators. The frequency ofthe slow clock is 32.768 kHz. The frequency of the main clockis 12 MHz. The processor can setup HSE to drive the master clock,which can be set as high as 168 MHz.
Programming and Debugging¶
The OLIMEX-STM32-E407 board does not include an embedded debug toolinterface. You will need to use ST tools or an external JTAG probe.In the following examples a ST-Link V2 USB dongle is used.
Flashing an application to the Olimex-STM32-E407¶
The sample application Hello World is being used in this tutorial. Tobuild the Zephyr kernel and application, enter:
Connect the ST-Link USB dongle to your host computer and to the JTAG port ofthe OLIMEX-STM32-E407 board.Then, enter the following command:
Run a serial host program to connect with your board:
Olimex Jtag Tiny Driver
After reseting the board you should see the following message:
Debugging¶
Olimex Usb Driver
Access gdb with the following make command: