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authorGareth McMullin2011-03-15 07:12:46 +1300
committerGareth McMullin2011-03-15 07:12:46 +1300
commit67e3452855d8446bab1ebf9f07cb8891f250fb6c (patch)
tree44a8de65c2535c7b74cb775ce5712c4f87e8156e /examples/stm32
parentbf0d1a7b4114ca35a2000bd47d9c6d73c6e92ce2 (diff)
Added simple USB example for STM32F107.
Diffstat (limited to 'examples/stm32')
-rw-r--r--examples/stm32/stm32-h107/usb_simple/Makefile23
-rw-r--r--examples/stm32/stm32-h107/usb_simple/README10
-rw-r--r--examples/stm32/stm32-h107/usb_simple/usb_simple.c118
-rw-r--r--examples/stm32/stm32-h107/usb_simple/usb_simple.ld31
4 files changed, 182 insertions, 0 deletions
diff --git a/examples/stm32/stm32-h107/usb_simple/Makefile b/examples/stm32/stm32-h107/usb_simple/Makefile
new file mode 100644
index 0000000..2d954e2
--- /dev/null
+++ b/examples/stm32/stm32-h107/usb_simple/Makefile
@@ -0,0 +1,23 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usb_simple
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/stm32-h107/usb_simple/README b/examples/stm32/stm32-h107/usb_simple/README
new file mode 100644
index 0000000..93d4f03
--- /dev/null
+++ b/examples/stm32/stm32-h107/usb_simple/README
@@ -0,0 +1,10 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This is small USB controlled LED blinking example program using libopencm3.
+
+It's intended for the ST STM32-based Olimex STM32-H107 eval board (see
+http://olimex.com/dev/stm32-h107.html for details). The usbtest.py
+script in this directory maybe used to control the LED.
+
diff --git a/examples/stm32/stm32-h107/usb_simple/usb_simple.c b/examples/stm32/stm32-h107/usb_simple/usb_simple.c
new file mode 100644
index 0000000..517f37e
--- /dev/null
+++ b/examples/stm32/stm32-h107/usb_simple/usb_simple.c
@@ -0,0 +1,118 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+
+#include <libopencm3/usb/usbd.h>
+
+const struct usb_device_descriptor dev = {
+ .bLength = USB_DT_DEVICE_SIZE,
+ .bDescriptorType = USB_DT_DEVICE,
+ .bcdUSB = 0x0200,
+ .bDeviceClass = 0xFF,
+ .bDeviceSubClass = 0,
+ .bDeviceProtocol = 0,
+ .bMaxPacketSize0 = 64,
+ .idVendor = 0xCAFE,
+ .idProduct = 0xCAFE,
+ .bcdDevice = 0x0200,
+ .iManufacturer = 1,
+ .iProduct = 2,
+ .iSerialNumber = 3,
+ .bNumConfigurations = 1,
+};
+
+const struct usb_interface_descriptor iface = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = 0,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = 0xFF,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .iInterface = 0,
+};
+
+const struct usb_interface ifaces[] = {{
+ .num_altsetting = 1,
+ .altsetting = &iface,
+}};
+
+const struct usb_config_descriptor config = {
+ .bLength = USB_DT_CONFIGURATION_SIZE,
+ .bDescriptorType = USB_DT_CONFIGURATION,
+ .wTotalLength = 0,
+ .bNumInterfaces = 1,
+ .bConfigurationValue = 1,
+ .iConfiguration = 0,
+ .bmAttributes = 0x80,
+ .bMaxPower = 0x32,
+
+ .interface = ifaces,
+};
+
+const char *usb_strings[] = {
+ "x",
+ "Black Sphere Technologies",
+ "Simple Device",
+ "1001"
+};
+
+static int simple_control_callback(struct usb_setup_data *req, u8 **buf,
+ u16 *len, void (**complete)(struct usb_setup_data *req))
+{
+ (void)buf;
+ (void)len;
+ (void)complete;
+
+ if(req->bmRequestType != 0x40)
+ return 0; /* Only accept vendor request */
+
+ if(req->wValue & 1)
+ gpio_set(GPIOC, GPIO6);
+ else
+ gpio_clear(GPIOC, GPIO6);
+
+ return 1;
+}
+
+int main(void)
+{
+ rcc_clock_setup_in_hse_8mhz_out_72mhz();
+
+ rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
+
+ /* LED output */
+ gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
+
+ usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings);
+ usbd_register_control_callback(
+ USB_REQ_TYPE_VENDOR,
+ USB_REQ_TYPE_TYPE,
+ simple_control_callback);
+
+ while (1)
+ usbd_poll();
+}
+
diff --git a/examples/stm32/stm32-h107/usb_simple/usb_simple.ld b/examples/stm32/stm32-h107/usb_simple/usb_simple.ld
new file mode 100644
index 0000000..6c9c766
--- /dev/null
+++ b/examples/stm32/stm32-h107/usb_simple/usb_simple.ld
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Linker script for Olimex STM32-H107 (STM32F107VCT6, 256K flash, 64K RAM). */
+
+/* Define memory regions. */
+MEMORY
+{
+ rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K
+ ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
+}
+
+/* Include the common ld script. */
+INCLUDE libopencm3_stm32.ld
+