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Updated stm32f3discovery configuration

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* Added notes about external debugging to README
* Added conditional pin assignments for I2C1 and I2C2 to prevent
  apps/system/i2c build failures.
This commit is contained in:
Doug Vetter 2015-12-20 19:51:27 -05:00
parent 188d72d1c3
commit a1b780c000
2 changed files with 63 additions and 6 deletions
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24
configs/stm32f3discovery/README.txt
View File

@ -425,6 +425,30 @@ https://github.com/texane/stlink
--------------------------------
This is an open source server for the ST-Link that I have never used.
It is also possible to use an external debugger such as the Segger JLink
(EDU or commercial models) provided:
1) The CN4 jumpers are removed to disconnect the on-board STLinkV2 from
the STM32F3.
2) The appropriate (20 pin connector to flying wire) adapter is used to connect
the debugger to the required pins on the expansion headers (see below).
Note that the 1x6 header on the STLinkV2 side of the board labeled "SWD"
is for the STLink micro (STM32F1) and is not connected to the STM32F3.
3) OpenOCD version 0.9.0 or later is used. Earlier versions support either
JTAG only or are buggy for SWD.
The signals used with external (SWD) debugging are:
VREF (3V)
GROUND (GND)
SWCLK (PA14)
SWIO (PA13)
SWO (PB3)
RESET (NRST)
Atollic GDB Server
------------------
You can use the Atollic IDE, but I have never done that either.

45
configs/stm32f3discovery/include/board.h
View File

@ -241,22 +241,55 @@
/* Alternate function pin selections ************************************************/
/* UART2:
*
* The STM32F3Discovery has no on-board serial devices, but the console is
* brought out to PA2 (TX) and PA3 (RX) for connection to an external serial device.
* (See the README.txt file for other options)
/* USART
*
* USART1: Hardwired to embedded STLinkV2 hardware debugger
* RX (PC5)
* TX (PC4)
*
* USART2: Connect to an external UART<->RS232 transceiver for use as console.
* RX (PA3)
* TX (PA2)
*/
#define GPIO_USART2_RX GPIO_USART2_RX_2
#define GPIO_USART2_TX GPIO_USART2_TX_2
/* SPI - There is a ST MEMS L3GD20 device on SPI1 using these pins: */
/* SPI
*
* SPI1: Hardwired to ST L3GD20 MEMS device
* MISO (PA6)
* MSOI (PA7)
* SCK (PA5)
*/
#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1
#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1
#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1
/* I2C
*
* I2C1: Accessible via expansion headers
* SCL (PA15)
* SDA (PA14)
* SMBA (PB5)
*
* I2C2: Accessible via expansion headers
* SCL (PA9)
* SDA (PA10)
* SMBA (PB12)
*/
#ifdef CONFIG_STM32_I2C1
#define GPIO_I2C1_SCL GPIO_I2C1_SCL_1
#define GPIO_I2C1_SDA GPIO_I2C1_SDA_1
#endif
#ifdef CONFIG_STM32_I2C2
#define GPIO_I2C2_SCL GPIO_I2C2_SCL_1
#define GPIO_I2C2_SDA GPIO_I2C2_SDA_1
#endif
/************************************************************************************
* Public Data
************************************************************************************/