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servo_v4: add initial servo_v4 build
Add initial servo_v4 build, GPIOs, etc. Supports most features other than PD passthrough. BUG=chromium:571476 BRANCH=None TEST=updated servod is able to control gpio, gpio extender on servo v4 Change-Id: I71c9cb2bf24b732dd6a2e101d7b1c849c9f88af8 Signed-off-by: Nick Sanders <nsanders@google.com> Reviewed-on: https://chromium-review.googlesource.com/332803 Commit-Ready: Nick Sanders <nsanders@chromium.org> Tested-by: Nick Sanders <nsanders@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org>
This commit is contained in:
Nick Sanders
1
board/servo_v4/Makefile
Symbolic link
1
board/servo_v4/Makefile
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../../Makefile
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220
board/servo_v4/board.c
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220
board/servo_v4/board.c
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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Servo V4 configuration */
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#include "adc.h"
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#include "adc_chip.h"
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#include "common.h"
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#include "console.h"
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#include "ec_version.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "i2c.h"
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#include "queue_policies.h"
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#include "registers.h"
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#include "spi.h"
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#include "task.h"
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#include "timer.h"
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#include "usart-stm32f0.h"
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#include "usart_tx_dma.h"
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#include "usart_rx_dma.h"
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#include "usb_gpio.h"
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#include "usb_i2c.h"
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#include "usb_spi.h"
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#include "usb-stream.h"
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#include "util.h"
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/******************************************************************************
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* Build GPIO tables and expose a subset of the GPIOs over USB.
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*/
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#include "gpio_list.h"
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static enum gpio_signal const usb_gpio_list[] = {
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/* Outputs */
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GPIO_DUT_CHG_EN,
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GPIO_HOST_OR_CHG_CTL,
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GPIO_DP_HPD,
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GPIO_SBU_UART_SEL,
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GPIO_HOST_USB_HUB_RESET_L,
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GPIO_FASTBOOT_DUTHUB_MUX_SEL,
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GPIO_SBU_MUX_EN,
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GPIO_FASTBOOT_DUTHUB_MUX_EN_L,
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GPIO_DUT_HUB_USB_RESET_L,
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GPIO_ATMEL_HWB_L,
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GPIO_ATMEL_RESET_L,
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GPIO_EMMC_MUX_SEL,
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GPIO_CMUX_EN,
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GPIO_EMMC_MUX_EN_L,
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GPIO_EMMC_PWR_EN,
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/* Inputs */
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GPIO_USERVO_FAULT_L,
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GPIO_USB_FAULT_L,
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GPIO_USB_DUT_CC2_RPUSB,
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GPIO_USB_DUT_CC2_RD,
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GPIO_USB_DUT_CC2_RA,
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GPIO_TP17,
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GPIO_USB_DUT_CC1_PR3A0,
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GPIO_USB_DUT_CC1_RP1A5,
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GPIO_USB_DUT_CC1_RPUSB,
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GPIO_USB_DUT_CC1_RD,
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GPIO_USB_DUT_CC1_RA,
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GPIO_USB_DUT_CC2_PR3A0,
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GPIO_USB_DUT_CC2_RP1A5,
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};
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/*
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* This instantiates struct usb_gpio_config const usb_gpio, plus several other
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* variables, all named something beginning with usb_gpio_
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*/
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USB_GPIO_CONFIG(usb_gpio,
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usb_gpio_list,
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USB_IFACE_GPIO,
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USB_EP_GPIO);
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/******************************************************************************
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* Set up USB PD
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*/
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/* ADC channels */
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const struct adc_t adc_channels[] = {
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/* USB PD CC lines sensing. Converted to mV (3300mV/4096). */
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[ADC_DUT_CC1_PD] = {"DUT_CC1_PD", 3300, 4096, 0, STM32_AIN(0)},
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[ADC_CHG_CC1_PD] = {"CHG_CC1_PD", 3300, 4096, 0, STM32_AIN(2)},
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[ADC_CHG_CC2_PD] = {"CHG_CC2_PD", 3300, 4096, 0, STM32_AIN(4)},
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[ADC_DUT_CC2_PD] = {"DUT_CC2_PD", 3300, 4096, 0, STM32_AIN(5)},
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};
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BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
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/******************************************************************************
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* Forward UARTs as a USB serial interface.
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*/
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#define USB_STREAM_RX_SIZE 16
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#define USB_STREAM_TX_SIZE 16
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/******************************************************************************
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* Forward USART3 as a simple USB serial interface.
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*/
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static struct usart_config const usart3;
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struct usb_stream_config const usart3_usb;
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static struct queue const usart3_to_usb = QUEUE_DIRECT(64, uint8_t,
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usart3.producer, usart3_usb.consumer);
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static struct queue const usb_to_usart3 = QUEUE_DIRECT(64, uint8_t,
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usart3_usb.producer, usart3.consumer);
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static struct usart_config const usart3 =
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USART_CONFIG(usart3_hw,
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usart_rx_interrupt,
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usart_tx_interrupt,
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115200,
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usart3_to_usb,
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usb_to_usart3);
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USB_STREAM_CONFIG(usart3_usb,
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USB_IFACE_USART3_STREAM,
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USB_STR_USART3_STREAM_NAME,
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USB_EP_USART3_STREAM,
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USB_STREAM_RX_SIZE,
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USB_STREAM_TX_SIZE,
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usb_to_usart3,
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usart3_to_usb)
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/******************************************************************************
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* Forward USART4 as a simple USB serial interface.
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*/
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static struct usart_config const usart4;
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struct usb_stream_config const usart4_usb;
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static struct queue const usart4_to_usb = QUEUE_DIRECT(64, uint8_t,
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usart4.producer, usart4_usb.consumer);
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static struct queue const usb_to_usart4 = QUEUE_DIRECT(64, uint8_t,
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usart4_usb.producer, usart4.consumer);
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static struct usart_config const usart4 =
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USART_CONFIG(usart4_hw,
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usart_rx_interrupt,
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usart_tx_interrupt,
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9600,
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usart4_to_usb,
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usb_to_usart4);
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USB_STREAM_CONFIG(usart4_usb,
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USB_IFACE_USART4_STREAM,
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USB_STR_USART4_STREAM_NAME,
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USB_EP_USART4_STREAM,
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USB_STREAM_RX_SIZE,
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USB_STREAM_TX_SIZE,
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usb_to_usart4,
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usart4_to_usb)
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/******************************************************************************
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* Define the strings used in our USB descriptors.
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*/
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const void *const usb_strings[] = {
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[USB_STR_DESC] = usb_string_desc,
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[USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."),
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[USB_STR_PRODUCT] = USB_STRING_DESC("Servo V4"),
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[USB_STR_SERIALNO] = USB_STRING_DESC("1234-a"),
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[USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
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[USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Servo EC Shell"),
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[USB_STR_USART3_STREAM_NAME] = USB_STRING_DESC("DUT UART"),
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[USB_STR_USART4_STREAM_NAME] = USB_STRING_DESC("Atmega UART"),
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};
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BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
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/******************************************************************************
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* Support I2C bridging over USB, this requires usb_i2c_board_enable and
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* usb_i2c_board_disable to be defined to enable and disable the SPI bridge.
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*/
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/* I2C ports */
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const struct i2c_port_t i2c_ports[] = {
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{"master", I2C_PORT_MASTER, 100,
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GPIO_MASTER_I2C_SCL, GPIO_MASTER_I2C_SDA},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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USB_I2C_CONFIG(usb_i2c, USB_IFACE_I2C, USB_EP_I2C);
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/******************************************************************************
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* Initialize board.
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*/
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static void board_init(void)
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{
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/* USB to serial queues */
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queue_init(&usart3_to_usb);
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queue_init(&usb_to_usart3);
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queue_init(&usart4_to_usb);
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queue_init(&usb_to_usart4);
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/* UART init */
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usart_init(&usart3);
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usart_init(&usart4);
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/* Delay DUT hub to avoid brownout. */
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usleep(1000);
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gpio_set_flags(GPIO_DUT_HUB_USB_RESET_L, GPIO_INPUT);
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/* Write USB3 Mode Enable to PS8742 USB/DP Mux. */
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i2c_write8(1, 0x20, 0x0, 0x20);
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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105
board/servo_v4/board.h
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105
board/servo_v4/board.h
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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Servo V4 configuration */
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#ifndef __CROS_EC_BOARD_H
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#define __CROS_EC_BOARD_H
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/* 48 MHz SYSCLK clock frequency */
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#define CPU_CLOCK 48000000
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/* Enable USART1,3,4 and USB streams */
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#define CONFIG_STREAM_USART
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#define CONFIG_STREAM_USART3
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#define CONFIG_STREAM_USART4
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#define CONFIG_STREAM_USB
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#define CONFIG_CMD_USART_INFO
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/* Optional features */
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#define CONFIG_STM_HWTIMER32
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#define CONFIG_HW_CRC
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/* USB Configuration */
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#define CONFIG_USB
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#define CONFIG_USB_PID 0x501b
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#define CONFIG_USB_CONSOLE
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/* USB interface indexes (use define rather than enum to expand them) */
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#define USB_IFACE_CONSOLE 0
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#define USB_IFACE_GPIO 1
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#define USB_IFACE_I2C 2
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#define USB_IFACE_USART3_STREAM 3
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#define USB_IFACE_USART4_STREAM 4
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#define USB_IFACE_COUNT 5
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/* USB endpoint indexes (use define rather than enum to expand them) */
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#define USB_EP_CONTROL 0
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#define USB_EP_CONSOLE 1
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#define USB_EP_GPIO 2
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#define USB_EP_I2C 3
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#define USB_EP_USART3_STREAM 4
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#define USB_EP_USART4_STREAM 5
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#define USB_EP_COUNT 6
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/* Enable control of GPIOs over USB */
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#define CONFIG_USB_GPIO
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/* This is not actually an EC so disable some features. */
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#undef CONFIG_WATCHDOG_HELP
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#undef CONFIG_LID_SWITCH
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/* Enable control of I2C over USB */
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#define CONFIG_USB_I2C
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#define CONFIG_I2C
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#define CONFIG_I2C_MASTER
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#define I2C_PORT_MASTER 1
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/* PD features */
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#define CONFIG_ADC
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/*
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* Allow dangerous commands all the time, since we don't have a write protect
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* switch.
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*/
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#define CONFIG_SYSTEM_UNLOCKED
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#ifndef __ASSEMBLER__
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/* Timer selection */
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#define TIM_CLOCK32 2
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#define TIM_ADC 3
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#include "gpio_signal.h"
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/* USB string indexes */
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enum usb_strings {
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USB_STR_DESC = 0,
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USB_STR_VENDOR,
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USB_STR_PRODUCT,
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USB_STR_SERIALNO,
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USB_STR_VERSION,
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USB_STR_CONSOLE_NAME,
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USB_STR_USART3_STREAM_NAME,
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USB_STR_USART4_STREAM_NAME,
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USB_STR_COUNT
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};
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/* ADC signal */
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enum adc_channel {
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ADC_DUT_CC1_PD = 0,
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ADC_CHG_CC1_PD,
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ADC_CHG_CC2_PD,
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ADC_DUT_CC2_PD,
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/* Number of ADC channels */
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ADC_CH_COUNT
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};
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#endif /* !__ASSEMBLER__ */
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#endif /* __CROS_EC_BOARD_H */
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13
board/servo_v4/build.mk
Normal file
13
board/servo_v4/build.mk
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@@ -0,0 +1,13 @@
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# -*- makefile -*-
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# Copyright 2016 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
|
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# found in the LICENSE file.
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#
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# Board specific files build
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# the IC is STmicro STM32F072RBT6
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CHIP:=stm32
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CHIP_FAMILY:=stm32f0
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CHIP_VARIANT:=stm32f07x
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board-y=board.o
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21
board/servo_v4/ec.tasklist
Normal file
21
board/servo_v4/ec.tasklist
Normal file
@@ -0,0 +1,21 @@
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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
|
||||
* Use of this source code is governed by a BSD-style license that can be
|
||||
* found in the LICENSE file.
|
||||
*/
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/**
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* List of enabled tasks in the priority order
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*
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* The first one has the lowest priority.
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*
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* For each task, use the macro TASK_ALWAYS(n, r, d, s) for base tasks and
|
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* TASK_NOTEST(n, r, d, s) for tasks that can be excluded in test binaries,
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* where :
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* 'n' in the name of the task
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* 'r' in the main routine of the task
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* 'd' in an opaque parameter passed to the routine at startup
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* 's' is the stack size in bytes; must be a multiple of 8
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*/
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#define CONFIG_TASK_LIST \
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TASK_ALWAYS(HOOKS, hook_task, NULL, TASK_STACK_SIZE) \
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TASK_ALWAYS(CONSOLE, console_task, NULL, TASK_STACK_SIZE)
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81
board/servo_v4/gpio.inc
Normal file
81
board/servo_v4/gpio.inc
Normal file
@@ -0,0 +1,81 @@
|
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/* -*- mode:c -*-
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||||
*
|
||||
* Copyright 2016 The Chromium OS Authors. All rights reserved.
|
||||
* Use of this source code is governed by a BSD-style license that can be
|
||||
* found in the LICENSE file.
|
||||
*/
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/* Outputs */
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GPIO(DUT_CHG_EN, PIN(A, 10), GPIO_OUT_LOW)
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GPIO(HOST_OR_CHG_CTL, PIN(A, 13), GPIO_OUT_HIGH)
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GPIO(SBU_UART_SEL, PIN(A, 15), GPIO_OUT_LOW)
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GPIO(HOST_USB_HUB_RESET_L, PIN(D, 2), GPIO_OUT_HIGH)
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GPIO(FASTBOOT_DUTHUB_MUX_SEL, PIN(B, 5), GPIO_OUT_HIGH)
|
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GPIO(SBU_MUX_EN, PIN(B, 6), GPIO_OUT_LOW)
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||||
GPIO(FASTBOOT_DUTHUB_MUX_EN_L, PIN(B, 7), GPIO_OUT_LOW)
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||||
GPIO(DUT_HUB_USB_RESET_L, PIN(B, 9), GPIO_OUT_LOW)
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||||
GPIO(ATMEL_HWB_L, PIN(B, 12), GPIO_OUT_HIGH)
|
||||
GPIO(ATMEL_RESET_L, PIN(C, 12), GPIO_OUT_LOW)
|
||||
GPIO(EMMC_MUX_SEL, PIN(C, 13), GPIO_OUT_LOW)
|
||||
GPIO(CMUX_EN, PIN(C, 14), GPIO_OUT_HIGH)
|
||||
GPIO(EMMC_MUX_EN_L, PIN(F, 0), GPIO_OUT_HIGH)
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||||
GPIO(EMMC_PWR_EN, PIN(F, 1), GPIO_OUT_LOW)
|
||||
|
||||
|
||||
/* Inputs */
|
||||
GPIO(DP_HPD, PIN(A, 14), GPIO_INPUT)
|
||||
GPIO(USERVO_FAULT_L, PIN(A, 8), GPIO_INPUT)
|
||||
GPIO(USB_FAULT_L, PIN(A, 9), GPIO_INPUT)
|
||||
|
||||
GPIO(TP17, PIN(C, 15), GPIO_INPUT)
|
||||
|
||||
/* Type-C */
|
||||
/* PD RX/TX */
|
||||
GPIO(USB_C_REF, PIN(A, 1), GPIO_ANALOG)
|
||||
GPIO(USB_CHG_CC1_PD, PIN(A, 2), GPIO_ANALOG)
|
||||
GPIO(USB_CHG_CC2_PD, PIN(A, 4), GPIO_ANALOG)
|
||||
GPIO(USB_DUT_CC1_PD, PIN(A, 0), GPIO_ANALOG)
|
||||
GPIO(USB_DUT_CC2_PD, PIN(A, 5), GPIO_ANALOG)
|
||||
|
||||
GPIO(USB_CHG_CC1_TX_DATA, PIN(B, 4), GPIO_INPUT)
|
||||
GPIO(USB_CHG_CC2_TX_DATA, PIN(A, 6), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC1_TX_DATA, PIN(B, 14), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC2_TX_DATA, PIN(C, 2), GPIO_INPUT)
|
||||
|
||||
GPIO(USB_DUT_CC1_PR3A0, PIN(C, 0), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC1_RP1A5, PIN(C, 1), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC1_RPUSB, PIN(C, 3), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC1_RD, PIN(C, 6), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC1_RA, PIN(C, 7), GPIO_INPUT)
|
||||
|
||||
GPIO(USB_DUT_CC2_PR3A0, PIN(C, 8), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC2_RP1A5, PIN(C, 9), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC2_RPUSB, PIN(B, 0), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC2_RD, PIN(B, 1), GPIO_INPUT)
|
||||
GPIO(USB_DUT_CC2_RA, PIN(B, 2), GPIO_INPUT)
|
||||
|
||||
/* Alternate PD functions */
|
||||
GPIO(USB_CHG_TX_CLKOUT, PIN(B, 8), GPIO_INPUT)
|
||||
GPIO(USB_CHG_TX_CLKIN, PIN(B, 3), GPIO_INPUT)
|
||||
GPIO(USB_DUT_TX_CLKOUT, PIN(B, 15), GPIO_INPUT)
|
||||
GPIO(USB_DUT_TX_CLKIN, PIN(B, 13), GPIO_INPUT)
|
||||
|
||||
|
||||
/* I2C pins should be configured as inputs until I2C module is */
|
||||
/* initialized. This will avoid driving the lines unintentionally.*/
|
||||
GPIO(MASTER_I2C_SCL, PIN(B, 10), GPIO_INPUT)
|
||||
GPIO(MASTER_I2C_SDA, PIN(B, 11), GPIO_INPUT)
|
||||
|
||||
/* Unimplemented signals since we are not an EC */
|
||||
UNIMPLEMENTED(ENTERING_RW)
|
||||
UNIMPLEMENTED(WP_L)
|
||||
|
||||
ALTERNATE(PIN_MASK(C, 0x0030), 1, MODULE_USART, 0) /* USART3: PC4/PC5 - Servo DUT UART */
|
||||
ALTERNATE(PIN_MASK(C, 0x0C00), 0, MODULE_USART, 0) /* USART4: PC10/PC11 - Servo UART3 */
|
||||
ALTERNATE(PIN_MASK(B, 0x0C00), 1, MODULE_I2C, 0) /* I2C MASTER:PB8/9 GPIO_ODR_HIGH */
|
||||
|
||||
ALTERNATE(PIN_MASK(B, 0x0008), 0, MODULE_USB_PD, 0) /* SPI1_SCK: PB3 */
|
||||
ALTERNATE(PIN_MASK(B, 0x2000), 0, MODULE_USB_PD, 0) /* SPI2_SCK: PB13 */
|
||||
ALTERNATE(PIN_MASK(B, 0x0100), 2, MODULE_USB_PD, 0) /* TIM16_CH1: PB8 */
|
||||
ALTERNATE(PIN_MASK(B, 0x8000), 1, MODULE_USB_PD, 0) /* TIM15_CH2: PB15 */
|
||||
|
||||
Reference in New Issue
Block a user