STM32L-Discovery LCD driver is code compele but untested
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Gregory Nutt
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@ -398,16 +398,17 @@ LEDs
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The STM32L-Discovery board has four LEDs. Two of these are controlled by
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logic on the board and are not available for software control:
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LD1 COM: LD2 default status is red. LD2 turns to green to indicate that
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communications are in progress between the PC and the ST-LINK/V2.
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LD1 COM: LD2 default status is red. LD2 turns to green to indicate
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that communications are in progress between the PC and the
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ST-LINK/V2.
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LD2 PWR: Red LED indicates that the board is powered.
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And two LEDs can be controlled by software:
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User LD3: Green LED is a user LED connected to the I/O PB7 of the STM32L152
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MCU.
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User LD4: Blue LED is a user LED connected to the I/O PB6 of the STM32L152
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MCU.
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User LD3: Green LED is a user LED connected to the I/O PB7 of the
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STM32L152 MCU.
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User LD4: Blue LED is a user LED connected to the I/O PB6 of the
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STM32L152 MCU.
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These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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defined. In that case, the usage by the board port is defined in
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@ -432,8 +433,8 @@ Serial Console
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The STM32L-Discovery has no on-board RS-232 driver. Further, there are no
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USART pins that do not conflict with the on board resources, in particular,
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the LCD: Most USART pins are available if the LCD is enabled; USART2 may be
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used if either the LCD or the on-board LEDs are disabled.
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the LCD: Most USART pins are available if the LCD is enabled; USART2 may
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be used if either the LCD or the on-board LEDs are disabled.
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PA9 USART1_TX LCD glass COM1 P2, pin 22
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PA10 USART1_RX LCD glass COM2 P2, pin 21
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@ -448,24 +449,30 @@ used if either the LCD or the on-board LEDs are disabled.
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PC10 USART3_TX LCD SEG22 P2, pin 15
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PC11 USART3_RX LCD SEG23 P2, pin 14
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GND and (external) 5V are available on both P1 and P2. Note: These signals
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may be at lower voltage levels and, hence, may not properly drive an external
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RS-232 transceiver.
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NOTES:
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NOTE: The crystal X3 is not installed on the STM32L3-Discovery. As a
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result, the HSE clock is not availabled and the less acurate HSI must be
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used. This may limit the accuracy of the computed baud, especially at
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higher BAUD. The HSI is supposedly calibrated in the factory to within 1%
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at room temperatures so perhaps this not a issue.
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- GND and (external) 5V are available on both P1 and P2. Note: These
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signals may be at lower voltage levels and, hence, may not properly
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drive an external RS-232 transceiver.
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- The crystal X3 is not installed on the STM32L3-Discovery. As a result,
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the HSE clock is not availabled and the less acurate HSI must be used.
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This may limit the accuracy of the computed baud, especially at higher
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BAUD. The HSI is supposedly calibrated in the factory to within 1% at
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room temperatures so perhaps this not a issue.
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- According to the STM32L-Discovery User Manual, the LCD should be removed
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from its socket if you use any of the LCD pins for any other purpose.
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I have had no problems using the USART1 with PA9 and PA10 with a 3.3-5V
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RS-232 transceiver module at 57600 baud. I have not tried higher baud rates.
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RS-232 transceiver module at 57600 baud. I have not tried higher baud
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rates.
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There is no support for a USB serial connector on the STM32L-Discovery board.
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The STM32L152 does support USB, but the USB pins are "free I/O" on the board
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and no USB connector is provided. So the use of a USB console is not option.
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If you need console output, you will need to disable either LCD (and use any
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USART) or the LEDs (and use USART1)
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- There is no support for a USB serial connector on the STM32L-Discovery
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board. The STM32L152 does support USB, but the USB pins are "free I/O"
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on the board and no USB connector is provided. So the use of a USB
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console is not option. If you need console output, you will need to
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disable either LCD (and use any USART) or the LEDs (and use USART1)
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Debugging
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=========
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@ -739,3 +746,9 @@ Where <subdir> is one of the following:
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CONFIG_HOST_WINDOWS=y : Builds under Windows
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CONFIG_WINDOWS_CYGWIN=y : Using Cygwin
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CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
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5. To enable SLCD support:
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CONFIG_ARCH_LEDS=y : Disable LED support
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CONFIG_LIB_SLCDCODEC=y : Enable the SLCD CODEC
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CONFIG_STM32_LCD=y : Enable the SLCD
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@ -1,5 +1,5 @@
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############################################################################
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# configs/stm32f3discovery/nsh/Make.defs
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# configs/stm32l1discovery/nsh/Make.defs
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#
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# Copyright (C) 2013 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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@ -1,5 +1,5 @@
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#!/bin/bash
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# configs/stm32f3discovery/nsh/setenv.sh
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# configs/stm32l1discovery/nsh/setenv.sh
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#
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# Copyright (C) 2013 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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File diff suppressed because it is too large
Load Diff
@ -186,38 +186,38 @@
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* PC11 LCD_SEG41 LCD SEG23
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*/
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#define BOARD_LCD_COM0 GPIO_LCD_COM0 /* PA8 */
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#define BOARD_LCD_COM1 GPIO_LCD_COM1 /* PA9 */
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#define BOARD_LCD_COM2 GPIO_LCD_COM2 /* PA10 */
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#define BOARD_LCD_COM3 GPIO_LCD_COM3 /* PB9 */
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#define BOARD_LCD_SEG0 GPIO_LCD_SEG0 /* PA1 */
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#define BOARD_LCD_SEG1 GPIO_LCD_SEG1 /* PA2 */
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#define BOARD_LCD_SEG2 GPIO_LCD_SEG2 /* PA3 */
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#define BOARD_LCD_SEG3 GPIO_LCD_SEG7 /* PB3 */
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#define BOARD_LCD_SEG4 GPIO_LCD_SEG8 /* PB4 */
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#define BOARD_LCD_SEG5 GPIO_LCD_SEG9 /* PB5 */
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#define BOARD_LCD_SEG6 GPIO_LCD_SEG10 /* PB10 */
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#define BOARD_LCD_SEG7 GPIO_LCD_SEG11 /* PB11 */
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#define BOARD_LCD_SEG8 GPIO_LCD_SEG12 /* PB12 */
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#define BOARD_LCD_SEG9 GPIO_LCD_SEG13 /* PB13 */
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#define BOARD_LCD_SEG10 GPIO_LCD_SEG14 /* PB14 */
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#define BOARD_LCD_SEG11 GPIO_LCD_SEG15 /* PB15 */
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#define BOARD_LCD_SEG12 GPIO_LCD_SEG17 /* PA15 */
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#define BOARD_LCD_SEG13 GPIO_LCD_SEG16 /* PB8 */
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#define BOARD_LCD_SEG14 GPIO_LCD_SEG18 /* PC0 */
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#define BOARD_LCD_SEG15 GPIO_LCD_SEG19 /* PC1 */
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#define BOARD_LCD_SEG16 GPIO_LCD_SEG20 /* PC2 */
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#define BOARD_LCD_SEG17 GPIO_LCD_SEG21 /* PC3 */
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#define BOARD_LCD_SEG18 GPIO_LCD_SEG24 /* PC6 */
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#define BOARD_LCD_SEG19 GPIO_LCD_SEG25 /* PC7 */
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#define BOARD_LCD_SEG20 GPIO_LCD_SEG26 /* PC8 */
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#define BOARD_LCD_SEG21 GPIO_LCD_SEG27 /* PC9 */
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#define BOARD_LCD_SEG22 GPIO_LCD_SEG40 /* PC10 */
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#define BOARD_LCD_SEG23 GPIO_LCD_SEG41 /* PC11 */
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#define BOARD_SLCD_COM0 GPIO_LCD_COM0 /* PA8 */
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#define BOARD_SLCD_COM1 GPIO_LCD_COM1 /* PA9 */
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#define BOARD_SLCD_COM2 GPIO_LCD_COM2 /* PA10 */
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#define BOARD_SLCD_COM3 GPIO_LCD_COM3 /* PB9 */
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#define BOARD_SLCD_SEG0 GPIO_LCD_SEG0 /* PA1 */
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#define BOARD_SLCD_SEG1 GPIO_LCD_SEG1 /* PA2 */
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#define BOARD_SLCD_SEG2 GPIO_LCD_SEG2 /* PA3 */
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#define BOARD_SLCD_SEG3 GPIO_LCD_SEG7 /* PB3 */
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#define BOARD_SLCD_SEG4 GPIO_LCD_SEG8 /* PB4 */
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#define BOARD_SLCD_SEG5 GPIO_LCD_SEG9 /* PB5 */
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#define BOARD_SLCD_SEG6 GPIO_LCD_SEG10 /* PB10 */
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#define BOARD_SLCD_SEG7 GPIO_LCD_SEG11 /* PB11 */
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#define BOARD_SLCD_SEG8 GPIO_LCD_SEG12 /* PB12 */
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#define BOARD_SLCD_SEG9 GPIO_LCD_SEG13 /* PB13 */
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#define BOARD_SLCD_SEG10 GPIO_LCD_SEG14 /* PB14 */
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#define BOARD_SLCD_SEG11 GPIO_LCD_SEG15 /* PB15 */
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#define BOARD_SLCD_SEG12 GPIO_LCD_SEG17 /* PA15 */
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#define BOARD_SLCD_SEG13 GPIO_LCD_SEG16 /* PB8 */
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#define BOARD_SLCD_SEG14 GPIO_LCD_SEG18 /* PC0 */
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#define BOARD_SLCD_SEG15 GPIO_LCD_SEG19 /* PC1 */
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#define BOARD_SLCD_SEG16 GPIO_LCD_SEG20 /* PC2 */
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#define BOARD_SLCD_SEG17 GPIO_LCD_SEG21 /* PC3 */
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#define BOARD_SLCD_SEG18 GPIO_LCD_SEG24 /* PC6 */
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#define BOARD_SLCD_SEG19 GPIO_LCD_SEG25 /* PC7 */
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#define BOARD_SLCD_SEG20 GPIO_LCD_SEG26 /* PC8 */
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#define BOARD_SLCD_SEG21 GPIO_LCD_SEG27 /* PC9 */
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#define BOARD_SLCD_SEG22 GPIO_LCD_SEG40 /* PC10 */
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#define BOARD_SLCD_SEG23 GPIO_LCD_SEG41 /* PC11 */
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#define BOARD LCD_NCOM 4
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#define BOARD LCD_NSEG 24
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#define BOARD_LCD_NGPIOS 28
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#define BOARD_SLCD_NCOM 4
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#define BOARD_SLCD_NSEG 24
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#define BOARD_SLCD_NGPIOS 28
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/****************************************************************************************************
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* Public Types
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