diff options
Diffstat (limited to 'wirish/stm32f2')
-rw-r--r-- | wirish/stm32f2/boards_setup.cpp | 120 | ||||
-rw-r--r-- | wirish/stm32f2/util_hooks.c | 45 | ||||
-rw-r--r-- | wirish/stm32f2/wirish_debug.cpp | 60 | ||||
-rw-r--r-- | wirish/stm32f2/wirish_digital.cpp | 99 |
4 files changed, 0 insertions, 324 deletions
diff --git a/wirish/stm32f2/boards_setup.cpp b/wirish/stm32f2/boards_setup.cpp deleted file mode 100644 index 5764dd0..0000000 --- a/wirish/stm32f2/boards_setup.cpp +++ /dev/null @@ -1,120 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2012 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/** - * @file wirish/stm32f2/boards_setup.cpp - * @author Marti Bolivar <mbolivar@leaflabs.com> - * @brief STM32F2 chip setup. - * - * This file controls how init() behaves on the STM32F2. Be very - * careful when changing anything here. Many of these values depend - * upon each other. - */ - -#include "boards_private.h" - -#include <libmaple/gpio.h> -#include <libmaple/syscfg.h> -#include <libmaple/libmaple_types.h> -#include <wirish/wirish_types.h> -#include <board/board.h> - -// PLL config for 25 MHz external crystal --> 120 MHz SYSCLK, with -// 48 MHz PLL48CK. -#ifndef BOARD_PLL_Q -#define BOARD_PLL_Q 5 -#endif -#ifndef BOARD_PLL_P -#define BOARD_PLL_P 2 -#endif -#ifndef BOARD_PLL_N -#define BOARD_PLL_N 240 -#endif -#ifndef BOARD_PLL_M -#define BOARD_PLL_M 25 -#endif - -static stm32f2_rcc_pll_data pll_data = {BOARD_PLL_Q, - BOARD_PLL_P, - BOARD_PLL_N, - BOARD_PLL_M}; - -namespace wirish { - namespace priv { - // PLL clocked off of HSE, with above configuration data. - __weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data}; - - // Global ADC prescaler - // - // On F2, with f_APB2 = 60 MHz, we need f_ADC = f_PCLK2 / 2 to - // get the (maximum) f_ADC = 30 MHz. - __weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_2; - - // Conservative ADC sample rate. Goal is error less than 1/4 - // LSB with 50 KOhm input impedance. - // - // On F2, with f_ADC = 30 MHz, error is acceptable assuming an - // internal sample and hold capacitance C_ADC at most 8.8 pF - // (ST doesn't specify the maximum C_ADC, so we had to take a - // guess). See Equation 1 and Table 61 in the F2 datasheet for - // more details. - __weak adc_smp_rate w_adc_smp = ADC_SMPR_144; - - __weak void board_reset_pll(void) { - // Set PLLCFGR to its reset value. - RCC_BASE->PLLCFGR = 0x24003010; // FIXME lose the magic number. - } - - __weak void board_setup_clock_prescalers(void) { - // On F2, with f_SYSCLK = 120 MHz (as determined by - // board_pll_cfg), - // - // f_AHB = f_SYSCLK / 1 = 120 MHz - // f_APB1 = f_AHB / 4 = 30 MHz - // f_APB2 = f_AHB / 2 = 60 MHz - rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); - rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_4); - rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_2); - } - - __weak void board_setup_gpio(void) { - gpio_init_all(); - } - - __weak void board_setup_usb(void) { - // Nothing to do. - } - - __weak void series_init(void) { - // We need SYSCFG for external interrupts - syscfg_init(); - // Turn on the I/O compensation cell, since we drive the - // GPIOs quickly by default. - syscfg_enable_io_compensation(); - } - - } -} diff --git a/wirish/stm32f2/util_hooks.c b/wirish/stm32f2/util_hooks.c deleted file mode 100644 index 1b519ab..0000000 --- a/wirish/stm32f2/util_hooks.c +++ /dev/null @@ -1,45 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2012 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/* - * STM32F2 implementations for libmaple util.c hooks - * FIXME these are just minimal stubs - */ - -#include <libmaple/nvic.h> - -/* - * Disables all peripheral interrupts. Called by __error() with global - * interrupts disabled. - */ -void __lm_error(void) { - nvic_irq_disable_all(); -} - -/* - * Enable the error USART for writing. - */ -/* usart_dev* __lm_enable_error_usart(void) { (TODO) } */ diff --git a/wirish/stm32f2/wirish_debug.cpp b/wirish/stm32f2/wirish_debug.cpp deleted file mode 100644 index af6c78b..0000000 --- a/wirish/stm32f2/wirish_debug.cpp +++ /dev/null @@ -1,60 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2012 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/** - * @file wirish/stm32f2/wirish_debug.cpp - * @brief High level debug port configuration - */ - -#include <wirish/wirish_debug.h> -#include <libmaple/gpio.h> - -// TODO is it worth optimizing these into raw MODER and AFR[LH] writes? - -void disableDebugPorts(void) { - // PA13-PA15 and PB3-PB4 are in system alternate function mode on - // reset, to support JTAG. Just put them in input mode to release - // them. - gpio_set_mode(GPIOA, 13, GPIO_MODE_INPUT); - gpio_set_mode(GPIOA, 14, GPIO_MODE_INPUT); - gpio_set_mode(GPIOA, 15, GPIO_MODE_INPUT); - gpio_set_mode(GPIOB, 3, GPIO_MODE_INPUT); - gpio_set_mode(GPIOB, 4, GPIO_MODE_INPUT); -} - -void enableDebugPorts(void) { - // Put PA13-PA15 and PB3-PB4 back in system AF mode. - gpio_set_mode(GPIOA, 13, GPIO_MODE_AF); - gpio_set_mode(GPIOA, 14, GPIO_MODE_AF); - gpio_set_mode(GPIOA, 15, GPIO_MODE_AF); - gpio_set_mode(GPIOB, 3, GPIO_MODE_AF); - gpio_set_mode(GPIOB, 4, GPIO_MODE_AF); - gpio_set_af(GPIOA, 13, GPIO_AF_SYS); - gpio_set_af(GPIOA, 14, GPIO_AF_SYS); - gpio_set_af(GPIOA, 15, GPIO_AF_SYS); - gpio_set_af(GPIOB, 3, GPIO_AF_SYS); - gpio_set_af(GPIOB, 4, GPIO_AF_SYS); -} diff --git a/wirish/stm32f2/wirish_digital.cpp b/wirish/stm32f2/wirish_digital.cpp deleted file mode 100644 index 4d46f1c..0000000 --- a/wirish/stm32f2/wirish_digital.cpp +++ /dev/null @@ -1,99 +0,0 @@ -/****************************************************************************** - * The MIT License - * - * Copyright (c) 2012 LeafLabs, LLC. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - *****************************************************************************/ - -/* - * STM32F2 implementations for basic GPIO functionality. - */ - -#include <wirish/io.h> - -#include <libmaple/gpio.h> -#include <libmaple/timer.h> - -#include <wirish/boards.h> - -void pinMode(uint8 pin, WiringPinMode w_mode) { - if (pin >= BOARD_NR_GPIO_PINS) { - return; - } - - gpio_pin_mode mode; - // People always do the silly pin-toggle speed benchmark, so let's - // accomodate them: - unsigned flags = GPIO_MODEF_SPEED_HIGH; - bool pwm = false; - switch(w_mode) { - case OUTPUT: - mode = GPIO_MODE_OUTPUT; - break; - case OUTPUT_OPEN_DRAIN: - mode = GPIO_MODE_OUTPUT; - flags |= GPIO_MODEF_TYPE_OD; - break; - case INPUT: - case INPUT_FLOATING: - mode = GPIO_MODE_INPUT; - break; - case INPUT_ANALOG: - mode = GPIO_MODE_ANALOG; - break; - case INPUT_PULLUP: - mode = GPIO_MODE_INPUT; - flags |= GPIO_MODEF_PUPD_PU; - break; - case INPUT_PULLDOWN: - mode = GPIO_MODE_INPUT; - flags |= GPIO_MODEF_PUPD_PD; - break; - case PWM: - mode = GPIO_MODE_AF; - pwm = true; - break; - case PWM_OPEN_DRAIN: - mode = GPIO_MODE_AF; - flags |= GPIO_MODEF_TYPE_OD; - pwm = true; - break; - default: - ASSERT(0); // Can't happen - return; - } - - const stm32_pin_info *info = &PIN_MAP[pin]; - - if (pwm) { - /* If enabling PWM, tell the timer to do PWM, and tell the pin - * to listen to the right timer. */ - ASSERT(info->timer_device != NULL); - if (info->timer_device == NULL) { - return; - } - gpio_af timer_af = timer_get_af(info->timer_device); - timer_set_mode(info->timer_device, info->timer_channel, TIMER_PWM); - gpio_set_af(info->gpio_device, info->gpio_bit, timer_af); - } - gpio_set_modef(info->gpio_device, info->gpio_bit, mode, flags); -} |