diff --git a/README.md b/README.md
index 92d89f67..938d5e29 100644
--- a/README.md
+++ b/README.md
@@ -66,11 +66,11 @@ The most heavily tested toolchain is "gcc-arm-embedded"
 https://launchpad.net/gcc-arm-embedded
 
 Other toolchains _should_ work, but have not been nearly as well tested.
-Toolchains targetting linux, such as "gcc-arm-linux-gnu" or the like are
+Toolchains targeting linux, such as "gcc-arm-linux-gnu" or the like are
 _not_ appropriate.
 
 _NOTE_ We recommend, that you use g-a-c version 2.8 2014q3 or newer
-to build all platforms covered by libopencm3 succesfully.
+to build all platforms covered by libopencm3 successfully.
 
 Building
 --------
diff --git a/include/libopencm3/cm3/mpu.h b/include/libopencm3/cm3/mpu.h
index 2db38038..3d6960af 100644
--- a/include/libopencm3/cm3/mpu.h
+++ b/include/libopencm3/cm3/mpu.h
@@ -57,7 +57,7 @@
 
 /** @defgroup CM3_mpu_type MPU TYPE register fields
  * @ingroup CM3_mpu_defines
- * The MPU_TYPE register is always avilable, even if the MPU is not implemented.
+ * The MPU_TYPE register is always available, even if the MPU is not implemented.
  * In that case, the DREGION field will read as 0.
  *@{*/
 /** v6m/v7m only support a unified MPU (IREGION always 0) */
diff --git a/include/libopencm3/cm3/scb.h b/include/libopencm3/cm3/scb.h
index 7050ffae..da2de8d9 100644
--- a/include/libopencm3/cm3/scb.h
+++ b/include/libopencm3/cm3/scb.h
@@ -215,7 +215,7 @@
 #define SCB_AIRCR_VECTKEYSTAT		(0xFFFF << SCB_AIRCR_VECTKEYSTAT_LSB)
 #define SCB_AIRCR_VECTKEY		(0x05FA << SCB_AIRCR_VECTKEYSTAT_LSB)
 
-/* ENDIANESS Data endianness bit */
+/* ENDIANNESS Data endianness bit */
 #define SCB_AIRCR_ENDIANESS			(1 << 15)
 
 /* Those defined only on ARMv7 and above */
diff --git a/include/libopencm3/lm4f/uart.h b/include/libopencm3/lm4f/uart.h
index d12f30e9..f36556ee 100644
--- a/include/libopencm3/lm4f/uart.h
+++ b/include/libopencm3/lm4f/uart.h
@@ -319,7 +319,7 @@
 #define UART_DMACTL_DMAERR		(1 << 2)
 /** Transmit DMA enable */
 #define UART_DMACTL_TXDMAE		(1 << 1)
-/** Recieve DMA enable */
+/** Receive DMA enable */
 #define UART_DMACTL_RXDMAE		(1 << 0)
 
 /* =============================================================================
diff --git a/include/libopencm3/stm32/common/adc_common_v1.h b/include/libopencm3/stm32/common/adc_common_v1.h
index c8773fe6..3a9514ea 100644
--- a/include/libopencm3/stm32/common/adc_common_v1.h
+++ b/include/libopencm3/stm32/common/adc_common_v1.h
@@ -287,7 +287,7 @@ specific memorymap.h header before including this header file.*/
 /* DMA: Direct memory access mode. (ADC1 and ADC3 only!) */
 #define ADC_CR2_DMA                     (1 << 8)
 
-/* CONT: Continous conversion. */
+/* CONT: Continuous conversion. */
 #define ADC_CR2_CONT                    (1 << 1)
 
 /* ADON: A/D converter On/Off. */
diff --git a/include/libopencm3/stm32/common/i2c_common_all.h b/include/libopencm3/stm32/common/i2c_common_all.h
index 42acea0c..059ef10f 100644
--- a/include/libopencm3/stm32/common/i2c_common_all.h
+++ b/include/libopencm3/stm32/common/i2c_common_all.h
@@ -163,7 +163,7 @@ specific memorymap.h header before including this header file.*/
 /* Note: Bits [7:6] are reserved, and forced to 0 by hardware. */
 
 /* FREQ[5:0]: Peripheral clock frequency (valid values: 2-36 MHz, 2-42 MHz for
- * STM32F4 respectivly) */
+ * STM32F4 respectively) */
 /****************************************************************************/
 /** @defgroup i2c_clock I2C clock frequency settings
 @ingroup i2c_defines
diff --git a/include/libopencm3/stm32/f1/adc.h b/include/libopencm3/stm32/f1/adc.h
index d39cedc2..39fb3425 100644
--- a/include/libopencm3/stm32/f1/adc.h
+++ b/include/libopencm3/stm32/f1/adc.h
@@ -273,7 +273,7 @@ and ADC2
 /* CAL: A/D Calibration. */
 #define ADC_CR2_CAL			(1 << 2)
 
-/* CONT: Continous conversion. */
+/* CONT: Continuous conversion. */
 #define ADC_CR2_CONT			(1 << 1)
 
 /* ADON: A/D converter On/Off. */
diff --git a/include/libopencm3/stm32/f3/usart.h b/include/libopencm3/stm32/f3/usart.h
index e429ddc8..86961d3a 100644
--- a/include/libopencm3/stm32/f3/usart.h
+++ b/include/libopencm3/stm32/f3/usart.h
@@ -252,7 +252,7 @@
 /* ADDM7:7-bit Address Detection/4-bit Address Detection */
 #define USART_CR2_ADDM7			(1 << 4)
 
-/* ADD[3:0]: Addres of the usart node
+/* ADD[3:0]: Address of the usart node
 #define USART_CR2_ADD_MASK              0xF */
 
 /* --- USART_CR3 values ---------------------------------------------------- */
diff --git a/include/libopencm3/stm32/f4/adc.h b/include/libopencm3/stm32/f4/adc.h
index 07addb52..4ce71aab 100644
--- a/include/libopencm3/stm32/f4/adc.h
+++ b/include/libopencm3/stm32/f4/adc.h
@@ -241,7 +241,7 @@ LGPL License Terms @ref lgpl_license
 
 /* Note: Bits [7:2] are reserved and must be kept at reset value. */
 
-/* CONT: Continous conversion. */
+/* CONT: Continuous conversion. */
 #define ADC_CR2_CONT			(1 << 1)
 
 /* ADON: A/D converter On/Off. */
diff --git a/include/libopencm3/usb/usbd.h b/include/libopencm3/usb/usbd.h
index a7c125a4..bcd28ea0 100644
--- a/include/libopencm3/usb/usbd.h
+++ b/include/libopencm3/usb/usbd.h
@@ -157,7 +157,7 @@ extern void usbd_ep_setup(usbd_device *usbd_dev, uint8_t addr, uint8_t type,
 /** Write a packet
  * @param addr EP address (direction is ignored)
  * @param len # of bytes
- * @return 0 if failed, len if succesful
+ * @return 0 if failed, len if successful
  */
 extern uint16_t usbd_ep_write_packet(usbd_device *usbd_dev, uint8_t addr,
 				const void *buf, uint16_t len);
diff --git a/include/libopencm3/usb/usbstd.h b/include/libopencm3/usb/usbstd.h
index abfc8b03..ec5881ae 100644
--- a/include/libopencm3/usb/usbstd.h
+++ b/include/libopencm3/usb/usbstd.h
@@ -13,7 +13,7 @@ Gareth McMullin <gareth@blacksphere.co.nz>
 @date 10 March 2013
 
 A set of structure definitions for the USB control structures
-defined in chapter 9 of the "Univeral Serial Bus Specification Revision 2.0"
+defined in chapter 9 of the "Universal Serial Bus Specification Revision 2.0"
 Available from the USB Implementers Forum - http://www.usb.org/
 
 LGPL License Terms @ref lgpl_license
@@ -48,7 +48,7 @@ LGPL License Terms @ref lgpl_license
 
 /*
  * This file contains structure definitions for the USB control structures
- * defined in chapter 9 of the "Univeral Serial Bus Specification Revision 2.0"
+ * defined in chapter 9 of the "Universal Serial Bus Specification Revision 2.0"
  * Available from the USB Implementers Forum - http://www.usb.org/
  */
 
diff --git a/lib/cm3/dwt.c b/lib/cm3/dwt.c
index fe7c2611..b4408b0c 100644
--- a/lib/cm3/dwt.c
+++ b/lib/cm3/dwt.c
@@ -27,7 +27,7 @@
  * benchmarking performance of the code. If function fails, the cycle counter
  * isn't available on this architecture.
  *
- * @returnd true, if success
+ * @return true, if success
  */
 bool dwt_enable_cycle_counter(void)
 {
diff --git a/lib/lm4f/gpio.c b/lib/lm4f/gpio.c
index 0a103cf5..e89bbebb 100644
--- a/lib/lm4f/gpio.c
+++ b/lib/lm4f/gpio.c
@@ -502,7 +502,7 @@ void gpio_toggle(uint32_t gpioport, uint8_t gpios)
  *		serviced_irq |= GPIO4;
  *	}
  *
- *	// Clear the interupt flag for the processed IRQs
+ *	// Clear the interrupt flag for the processed IRQs
  *	gpio_clear_interrupt_flag(GPIOF, serviced_irqs);
  * }
  * @endcode
diff --git a/lib/lm4f/rcc.c b/lib/lm4f/rcc.c
index 9b051b34..ee16de6c 100644
--- a/lib/lm4f/rcc.c
+++ b/lib/lm4f/rcc.c
@@ -92,7 +92,7 @@ Alexandru Gagniuc <mr.nuke.me@gmail.com>
  * internal 16MHz oscillator.
  *
  * High-level routines update the system clock automatically.
- * For read access, it is recommended to acces this variable via
+ * For read access, it is recommended to access this variable via
  * @code
  *	rcc_get_system_clock_frequency();
  * @endcode
diff --git a/lib/lm4f/uart.c b/lib/lm4f/uart.c
index c5e3e04e..f37907b4 100644
--- a/lib/lm4f/uart.c
+++ b/lib/lm4f/uart.c
@@ -256,7 +256,7 @@ void uart_clock_from_sysclk(uint32_t uart)
  *
  * \brief <b>Sending and receiving data through the UART</b>
  *
- * Primitives for sending and recieving data are provided, @ref uart_send() and
+ * Primitives for sending and receiving data are provided, @ref uart_send() and
  * @ref uart_recv(). These primitives do not check if data can be transmitted
  * or wait for data. If waiting until data is available or can be transmitted is
  * desired, blocking primitives are also available, @ref uart_send_blocking()
@@ -407,7 +407,7 @@ uint16_t uart_recv_blocking(uint32_t uart)
  *		serviced_irq |= UART_INT_CTS;
  *	}
  *
- *	// Clear the interupt flag for the processed IRQs
+ *	// Clear the interrupt flag for the processed IRQs
  *	uart_clear_interrupt_flag(UART0, serviced_irqs);
  * }
  * @endcode
diff --git a/lib/stm32/common/crypto_common_f24.c b/lib/stm32/common/crypto_common_f24.c
index 46cef6bd..22f329c6 100644
--- a/lib/stm32/common/crypto_common_f24.c
+++ b/lib/stm32/common/crypto_common_f24.c
@@ -93,7 +93,7 @@ void crypto_set_datatype(enum crypto_datatype datatype)
 }
 
 /**
- * @brief Set the algoritm for Encryption/decryption
+ * @brief Set the algorithm for Encryption/decryption
  *
  *@param[in] mode enum crypto_mode Mode of execution
  */
diff --git a/lib/stm32/common/dma_common_l1f013.c b/lib/stm32/common/dma_common_l1f013.c
index d705964d..0005c113 100644
--- a/lib/stm32/common/dma_common_l1f013.c
+++ b/lib/stm32/common/dma_common_l1f013.c
@@ -236,7 +236,7 @@ After the number of bytes/words to be transferred has been completed, the
 original transfer block size, memory and peripheral base addresses are
 reloaded and the process repeats.
 
-@note This cannot be used with memory to memory mode, which is explictly
+@note This cannot be used with memory to memory mode, which is explicitly
 disabled here.
 
 @param[in] dma unsigned int32. DMA controller base address: DMA1 or DMA2
diff --git a/lib/stm32/common/st_usbfs_core.c b/lib/stm32/common/st_usbfs_core.c
index 171e2a28..09a6e22e 100644
--- a/lib/stm32/common/st_usbfs_core.c
+++ b/lib/stm32/common/st_usbfs_core.c
@@ -164,7 +164,7 @@ uint8_t st_usbfs_ep_stall_get(usbd_device *dev, uint8_t addr)
 void st_usbfs_ep_nak_set(usbd_device *dev, uint8_t addr, uint8_t nak)
 {
 	(void)dev;
-	/* It does not make sence to force NAK on IN endpoints. */
+	/* It does not make sense to force NAK on IN endpoints. */
 	if (addr & 0x80) {
 		return;
 	}
diff --git a/lib/stm32/common/usart_common_all.c b/lib/stm32/common/usart_common_all.c
index 14364623..4e42f2a9 100644
--- a/lib/stm32/common/usart_common_all.c
+++ b/lib/stm32/common/usart_common_all.c
@@ -64,7 +64,7 @@ void usart_set_baudrate(uint32_t usart, uint32_t baud)
 	/*
 	 * Yes it is as simple as that. The reference manual is
 	 * talking about fractional calculation but it seems to be only
-	 * marketting babble to sound awesome. It is nothing else but a
+	 * marketing babble to sound awesome. It is nothing else but a
 	 * simple divider to generate the correct baudrate.
 	 *
 	 * Note: We round() the value rather than floor()ing it, for more
diff --git a/lib/stm32/f0/adc.c b/lib/stm32/f0/adc.c
index 7dbf84a9..ec2c7950 100644
--- a/lib/stm32/f0/adc.c
+++ b/lib/stm32/f0/adc.c
@@ -145,7 +145,7 @@ void adc_disable_discontinuous_mode(uint32_t adc)
 /*---------------------------------------------------------------------------*/
 /** @brief ADC Set conversion operation mode
  *
- * @note on SEQUENTIAL mode, the trigger event is neccesary to start conversion.
+ * @note on SEQUENTIAL mode, the trigger event is necessary to start conversion.
  * @par
  *
  * @param[in] adc Unsigned int32. ADC base address (@ref adc_reg_base)
diff --git a/lib/usb/usb_efm32lg.c b/lib/usb/usb_efm32lg.c
index f0b2cc3d..5768947c 100644
--- a/lib/usb/usb_efm32lg.c
+++ b/lib/usb/usb_efm32lg.c
@@ -102,7 +102,7 @@ static void efm32lg_ep_setup(usbd_device *usbd_dev, uint8_t addr, uint8_t type,
 {
 	/*
 	 * Configure endpoint address and type. Allocate FIFO memory for
-	 * endpoint. Install callback funciton.
+	 * endpoint. Install callback function.
 	 */
 	uint8_t dir = addr & 0x80;
 	addr &= 0x7f;
diff --git a/lib/usb/usb_fx07_common.c b/lib/usb/usb_fx07_common.c
index a2fab525..edd10ada 100644
--- a/lib/usb/usb_fx07_common.c
+++ b/lib/usb/usb_fx07_common.c
@@ -44,7 +44,7 @@ void stm32fx07_ep_setup(usbd_device *usbd_dev, uint8_t addr, uint8_t type,
 {
 	/*
 	 * Configure endpoint address and type. Allocate FIFO memory for
-	 * endpoint. Install callback funciton.
+	 * endpoint. Install callback function.
 	 */
 	uint8_t dir = addr & 0x80;
 	addr &= 0x7f;
@@ -179,7 +179,7 @@ uint8_t stm32fx07_ep_stall_get(usbd_device *usbd_dev, uint8_t addr)
 
 void stm32fx07_ep_nak_set(usbd_device *usbd_dev, uint8_t addr, uint8_t nak)
 {
-	/* It does not make sence to force NAK on IN endpoints. */
+	/* It does not make sense to force NAK on IN endpoints. */
 	if (addr & 0x80) {
 		return;
 	}
diff --git a/lib/usb/usb_standard.c b/lib/usb/usb_standard.c
index 5e851625..d94ceed9 100644
--- a/lib/usb/usb_standard.c
+++ b/lib/usb/usb_standard.c
@@ -193,7 +193,7 @@ static int usb_standard_get_descriptor(usbd_device *usbd_dev,
 				return USBD_REQ_NOTSUPP;
 			}
 
-			/* Ths string is returned as UTF16, hence the
+			/* This string is returned as UTF16, hence the
 			 * multiplication
 			 */
 			sd->bLength = strlen(usbd_dev->strings[array_idx]) * 2 +
diff --git a/mk/README b/mk/README
index 59efbbb5..cb792c3d 100644
--- a/mk/README
+++ b/mk/README
@@ -54,7 +54,7 @@ gcc
 -------------------------------------------------------------------------------
 
   This module adds an extended support for GCC toolchain. This adds rules,
-neccessary for compiling C and C++ files into elf binary, and rules for
+necessary for compiling C and C++ files into elf binary, and rules for
 generation of bin, hex, or srec output files for flashing.
 
 Variables to control the build process (should be set in your makefile):
@@ -109,7 +109,7 @@ OPENCM3_LIBNAME	(replaced)
  ! Ensure that you have line 'LDLIBS += -l$(OPENCM3_LIBNAME)' in your makefile.
  ! Ensure that you have line 'LDFLAGS += -L$(OPENCM3_DIR)/lib' in your makefile.
  ! Ensure that you have rule '$(OPENCM3_DIR)/lib/lib$(OPENCM3_LIBNAME).a:'
-   to be the library archive succesfully built when needed.
+   to be the library archive successfully built when needed.
 
 Temporary variables that you should not use in your makefile:
 -------------------------------------------------------------
diff --git a/scripts/irq2nvic_h b/scripts/irq2nvic_h
index e3aeea00..0a99603c 100755
--- a/scripts/irq2nvic_h
+++ b/scripts/irq2nvic_h
@@ -23,7 +23,7 @@ numbers.
 Code generation is chosen here because the resulting C code needs to be very
 repetetive (definition of the IRQ numbers, function prototypes, weak fallback
 definition and vector table definition), all being very repetitive. No portable
-method to achive the same thing with C preprocessor is known to the author.
+method to achieve the same thing with C preprocessor is known to the author.
 (Neither is any non-portable method, for that matter.)"""
 
 import sys
@@ -149,7 +149,7 @@ def main():
         remove = False
     infile = sys.argv[1]
     if not infile.startswith('./include/libopencm3/') or not infile.endswith('/irq.json'):
-        raise ValueError("Arguent must match ./include/libopencm3/**/irq.json")
+        raise ValueError("Argument must match ./include/libopencm3/**/irq.json")
     nvic_h = infile.replace('irq.json', 'nvic.h')
     vector_nvic_c = infile.replace('./include/libopencm3/', './lib/').replace('irq.json', 'vector_nvic.c')
     cmsis = infile.replace('irq.json', 'irqhandlers.h').replace('/libopencm3/', '/libopencmsis/')