From 87412e87d641e1d4e63eebbffc6434608a2149cb Mon Sep 17 00:00:00 2001 From: Joel Bodenmann Date: Wed, 10 Feb 2016 23:28:50 +0100 Subject: [PATCH] New sample board file (replacing some misleading existing ones) --- .../board_SSD1306_chibios_16.1.3_stm32f4.h | 93 ++++++++++++ boards/addons/gdisp/board_SSD1306_spi.h | 136 ------------------ boards/addons/gdisp/board_SSD1306_spi2.h | 115 --------------- 3 files changed, 93 insertions(+), 251 deletions(-) create mode 100644 boards/addons/gdisp/board_SSD1306_chibios_16.1.3_stm32f4.h delete mode 100644 boards/addons/gdisp/board_SSD1306_spi.h delete mode 100644 boards/addons/gdisp/board_SSD1306_spi2.h diff --git a/boards/addons/gdisp/board_SSD1306_chibios_16.1.3_stm32f4.h b/boards/addons/gdisp/board_SSD1306_chibios_16.1.3_stm32f4.h new file mode 100644 index 00000000..361562fa --- /dev/null +++ b/boards/addons/gdisp/board_SSD1306_chibios_16.1.3_stm32f4.h @@ -0,0 +1,93 @@ +#ifndef _GDISP_LLD_BOARD_H +#define _GDISP_LLD_BOARD_H + +// Pin & SPI setup +#define SPI_DRIVER (&SPID2) +#define SPI_PORT GPIOB +#define SCK_PAD 10 +#define MOSI_PAD 15 + +#define CS_PORT GPIOB +#define RESET_PORT GPIOB +#define DC_PORT GPIOB +#define CS_PAD 3 // 0 = chip selected +#define RESET_PAD 4 // 0 = reset +#define DC_PAD 5 // control = 0, data = 1 + +static SPIConfig spi_cfg = { + NULL, + CS_PORT, + CS_PAD, + SPI_CR1_BR_1 +}; + +static GFXINLINE void init_board(GDisplay* g) +{ + (void)g; + + g->board = 0; + + // Set pin modes + palSetPadMode(SPI_PORT, SCK_PAD, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST); + palSetPadMode(SPI_PORT, MOSI_PAD, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST); + palSetPadMode(RESET_PORT, RESET_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); + palSetPadMode(CS_PORT, CS_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); + palSetPadMode(DC_PORT, DC_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); + + // Apply default states + palSetPad(CS_PORT, CS_PAD); + palSetPad(RESET_PORT, RESET_PAD); + palClearPad(DC_PORT, DC_PAD); + + // Start the SPI driver + spiStart(SPI_DRIVER, &spi_cfg); +} + +static GFXINLINE void post_init_board(GDisplay* g) +{ + (void)g; +} + + +static GFXINLINE void setpin_reset(GDisplay* g, bool_t state) +{ + (void)g; + + palWritePad(RESET_PORT, RESET_PAD, !state); +} + +static GFXINLINE void acquire_bus(GDisplay* g) +{ + (void)g; + + spiAcquireBus(SPI_DRIVER); + spiSelect(SPI_DRIVER); +} + +static GFXINLINE void release_bus(GDisplay* g) +{ + (void)g; + + spiUnselect(SPI_DRIVER); + spiReleaseBus(SPI_DRIVER); +} + +static GFXINLINE void write_cmd(GDisplay* g, uint8_t cmd) +{ + (void)g; + + static uint8_t buf; + palClearPad(DC_PORT, DC_PAD); + buf = cmd; + spiSend(SPI_DRIVER, 1, &buf); +} + +static GFXINLINE void write_data(GDisplay* g, uint8_t* data, uint16_t length) +{ + (void)g; + + palSetPad(DC_PORT, DC_PAD); + spiSend(SPI_DRIVER, length, data); +} + +#endif /* _GDISP_LLD_BOARD_H */ diff --git a/boards/addons/gdisp/board_SSD1306_spi.h b/boards/addons/gdisp/board_SSD1306_spi.h deleted file mode 100644 index f7b1ac6d..00000000 --- a/boards/addons/gdisp/board_SSD1306_spi.h +++ /dev/null @@ -1,136 +0,0 @@ -/* - * This file is subject to the terms of the GFX License. If a copy of - * the license was not distributed with this file, you can obtain one at: - * - * http://ugfx.org/license.html - */ - -/** - * @file boards/addons/gdisp/board_SSD1306_spi.h - * @brief GDISP Graphic Driver subsystem board interface for the SSD1306 display. - * - * @note This file contains a mix of hardware specific and operating system specific - * code. You will need to change it for your CPU and/or operating system. - */ - -#ifndef _GDISP_LLD_BOARD_H -#define _GDISP_LLD_BOARD_H - -// The command byte to put on the front of each page line -#define SSD1306_PAGE_PREFIX 0x40 // Co = 0, D/C = 1 - -// For a multiple display configuration we would put all this in a structure and then -// set g->board to that structure. -#define SSD1306_RESET_PORT GPIOB -#define SSD1306_RESET_PIN 5 -#define SSD1306_MISO_PORT GPIOB -#define SSD1306_MISO_PIN 8 -#define SSD1306_MOSI_PORT GPIOB -#define SSD1306_MOSI_PIN 7 -#define SSD1306_SCK_PORT GPIOB -#define SSD1306_SCK_PIN 6 -#define SSD1306_CS_PORT GPIOB -#define SSD1306_CS_PIN 5 -#define SET_RST palSetPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN); -#define CLR_RST palClearPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN); - -/* - * SPI1 configuration structure. - * Speed 42MHz, CPHA=0, CPOL=0, 8bits frames, MSb transmitted first. - * The slave select line is the pin 4 on the port GPIOA. - */ -static const SPIConfig spi1config = { - 0, - /* HW dependent part.*/ - SSD1306_MISO_PORT, - SSD1306_MISO_PIN, - 0 - //SPI_CR1_BR_0 -}; - -#if GFX_USE_OS_CHIBIOS - static int32_t thdPriority = 0; -#endif - -static GFXINLINE void init_board(GDisplay *g) { - unsigned i; - - // As we are not using multiple displays we set g->board to NULL as we don't use it. - g->board = 0; - - - switch(g->controllerdisplay) { - case 0: // Set up for Display 0 - // RESET pin. - palSetPadMode(SSD1306_RESET_PORT, SSD1306_RESET_PIN, PAL_MODE_OUTPUT_PUSHPULL); - - palSetPadMode(SSD1306_MISO_PORT, SSD1306_MISO_PIN, PAL_MODE_ALTERNATE(1)| - PAL_STM32_OSPEED_HIGHEST); - palSetPadMode(SSD1306_MOSI_PORT, SSD1306_MOSI_PIN, PAL_MODE_ALTERNATE(1)| - PAL_STM32_OSPEED_HIGHEST); - palSetPadMode(SSD1306_SCK_PORT, SSD1306_SCK_PIN, PAL_MODE_ALTERNATE(1)| - PAL_STM32_OSPEED_HIGHEST); - palSetPad(SSD1306_CS_PORT, SSD1306_CS_PIN); - palSetPadMode(SSD1306_CS_PORT, SSD1306_CS_PIN, PAL_MODE_ALTERNATE(1)| - PAL_STM32_OSPEED_HIGHEST); - spiInit(); - break; - } -} - -static GFXINLINE void post_init_board(GDisplay *g) { - (void) g; -} - -static GFXINLINE void setpin_reset(GDisplay *g, bool_t state) { - (void) g; - if(state) - CLR_RST - else - SET_RST -} - -static GFXINLINE void acquire_bus(GDisplay *g) { - (void) g; - #if GFX_USE_OS_CHIBIOS - thdPriority = (int32_t)chThdGetPriority(); - chThdSetPriority(HIGHPRIO); - #endif - spiAcquireBus(&SPID1); -} - -static GFXINLINE void release_bus(GDisplay *g) { - (void) g; - #if GFX_USE_OS_CHIBIOS - chThdSetPriority(thdPriority); - #endif - spiReleaseBus(&SPID1); -} - -static GFXINLINE void write_cmd(GDisplay *g, uint8_t cmd) { - uint8_t command[2]; - (void) g; - - command[0] = 0x00; // Co = 0, D/C = 0 - command[1] = cmd; - - spiStart(&SPID1, &spi1config); - spiSelect(&SPID1); - spiStartSend(&SPID1, 2, command); - spiUnselect(&SPID1); - spiStop(&SPID1); -} - -static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) { - (void) g; - - spiStart(&SPID1, &spi1config); - spiSelect(&SPID1); - spiStartSend(&SPID1, length, data); - spiUnselect(&SPID1); - spiStop(&SPID1); -} - - -#endif /* _GDISP_LLD_BOARD_H */ - diff --git a/boards/addons/gdisp/board_SSD1306_spi2.h b/boards/addons/gdisp/board_SSD1306_spi2.h deleted file mode 100644 index 2bc0679f..00000000 --- a/boards/addons/gdisp/board_SSD1306_spi2.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * This file is subject to the terms of the GFX License. If a copy of - * the license was not distributed with this file, you can obtain one at: - * - * http://ugfx.org/license.html - */ - -/** - * @file boards/addons/gdisp/board_SSD1306_spi.h - * @brief GDISP Graphic Driver subsystem board interface for the SSD1306 display. - * - * @note This file contains a mix of hardware specific and operating system specific - * code. You will need to change it for your CPU and/or operating system. - */ - -#ifndef _GDISP_LLD_BOARD_H -#define _GDISP_LLD_BOARD_H - -// Pin & SPI setup - -#define SPI_DRIVER (&SPID2) -#define SPI_PORT GPIOB -#define SCK_PAD 13 -#define MISO_PAD 14 -#define MOSI_PAD 15 - -#define CS_PORT GPIOC -#define RESET_PORT GPIOC -#define DNC_PORT GPIOC -#define CS_PAD 7 // 0 = chip selected -#define RESET_PAD 8 // 0 = reset -#define DNC_PAD 9 // control=0, data=1 - -static SPIConfig spi_cfg = { NULL, CS_PORT, CS_PAD, 0 }; - -static GFXINLINE void init_board(GDisplay *g) { - (void) g; - g->board = 0; - // Maximum speed of SSD1306 is 10Mhz, so set SPI speed less or = to that. - // - // STM32 specific setup - // STM32_PCLK1 is APB1 frequence in hertz. - // STM32_PCLK2 is APB2 frequence in hertz. - // See manual clock diagram to determine APB1 or APB2 for spi in use. - // SPI2 uses APB1 clock on stm32151 - // BR bits divide PCLK as follows - // 000 /2 = 16 MHz - // 001 /4 = 8 MHz - // 010 /8 = 4 MHz - // 011 /16 = 2 MHz - // 100 /32 = 1 MHz - // 101 /64 = 500 kHz - // 110 /128 = 250 kHz - // 111 /256 = 125 kHz - unsigned long spi_clk = STM32_PCLK1 / 2; - unsigned code = 0; - while (spi_clk > 10000000) { - code++; - spi_clk /= 2; - } - spi_cfg.cr1 |= (code << 3); - - if (g->controllerdisplay == 0) { - palSetPadMode(SPI_PORT, SCK_PAD, PAL_MODE_ALTERNATE(5)|PAL_STM32_OTYPE_PUSHPULL|PAL_STM32_OSPEED_MID2); - palSetPadMode(SPI_PORT, MOSI_PAD, PAL_MODE_ALTERNATE(5)|PAL_STM32_OTYPE_PUSHPULL|PAL_STM32_OSPEED_MID2); - palSetPadMode(SPI_PORT, MISO_PAD, PAL_MODE_ALTERNATE(5)); - palSetPadMode(RESET_PORT, RESET_PAD, PAL_MODE_OUTPUT_PUSHPULL); - palSetPadMode(CS_PORT, CS_PAD, PAL_MODE_OUTPUT_PUSHPULL); - palSetPadMode(DNC_PORT, DNC_PAD, PAL_MODE_OUTPUT_PUSHPULL); - palSetPad(CS_PORT, CS_PAD); - palSetPad(RESET_PORT, RESET_PAD); - palClearPad(DNC_PORT, DNC_PAD); - } -} - -static GFXINLINE void post_init_board(GDisplay *g) { - (void) g; -} - - -static GFXINLINE void setpin_reset(GDisplay *g, bool_t state) { - (void) g; - palWritePad(RESET_PORT, RESET_PAD, !state); -} - -static GFXINLINE void acquire_bus(GDisplay *g) { - (void) g; - spiAcquireBus(SPI_DRIVER); - spiStart(SPI_DRIVER, &spi_cfg); - spiSelect(SPI_DRIVER); -} - -static GFXINLINE void release_bus(GDisplay *g) { - (void) g; - spiUnselect(SPI_DRIVER); - spiStop(SPI_DRIVER); - spiReleaseBus(SPI_DRIVER); -} - -static GFXINLINE void write_cmd(GDisplay *g, uint8_t cmd) { - (void) g; - static uint8_t buf; - palClearPad(DNC_PORT, DNC_PAD); - buf = cmd; - spiSend(SPI_DRIVER, 1, &buf); -} - -static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) { - (void) g; - palSetPad(DNC_PORT, DNC_PAD); - spiSend(SPI_DRIVER, length, data); -} - - -#endif /* _GDISP_LLD_BOARD_H */