diff --git a/src/jtag/drivers/OpenULINK/include/io.h b/src/jtag/drivers/OpenULINK/include/io.h
index a4a8b8acd..497c235a2 100644
--- a/src/jtag/drivers/OpenULINK/include/io.h
+++ b/src/jtag/drivers/OpenULINK/include/io.h
@@ -74,7 +74,7 @@
 #define PIN_RXD0      PINC0
 #define PIN_TXD0      OUTC1
 #define PIN_RESET_2   PINC2
-/* PC3 Not Connecte */
+/* PC3 Not Connected */
 /* PC4 Not Connected */
 #define PIN_RTCK      PINC5
 #define PIN_WR        OUTC6
diff --git a/src/jtag/drivers/OpenULINK/src/jtag.c b/src/jtag/drivers/OpenULINK/src/jtag.c
index 413945566..ecf98a08c 100644
--- a/src/jtag/drivers/OpenULINK/src/jtag.c
+++ b/src/jtag/drivers/OpenULINK/src/jtag.c
@@ -208,7 +208,7 @@ void jtag_slow_scan_in(uint8_t out_offset, uint8_t in_offset)
  *
  * Data stored in EP2 OUT buffer is shifted into the JTAG chain via TDI, TDO
  * data is not sampled.
- * The TAP-FSM state is alyways left in the PAUSE-DR/PAUSE-IR state.
+ * The TAP-FSM state is always left in the PAUSE-DR/PAUSE-IR state.
  *
  * Maximum achievable TCK frequency is 142 kHz for ULINK clocked at 24 MHz.
  *
@@ -283,7 +283,7 @@ void jtag_scan_out(uint8_t out_offset)
  *
  * Data stored in EP2 OUT buffer is shifted into the JTAG chain via TDI, TDO
  * data is not sampled.
- * The TAP-FSM state is alyways left in the PAUSE-DR/PAUSE-IR state.
+ * The TAP-FSM state is always left in the PAUSE-DR/PAUSE-IR state.
  *
  * Maximum achievable TCK frequency is 97 kHz for ULINK clocked at 24 MHz.
  *
@@ -368,7 +368,7 @@ void jtag_slow_scan_out(uint8_t out_offset)
  *
  * Data stored in EP2 OUT buffer is shifted into the JTAG chain via TDI, TDO
  * data is sampled and stored in the EP2 IN buffer.
- * The TAP-FSM state is alyways left in the PAUSE-DR/PAUSE-IR state.
+ * The TAP-FSM state is always left in the PAUSE-DR/PAUSE-IR state.
  *
  * Maximum achievable TCK frequency is 100 kHz for ULINK clocked at 24 MHz.
  *
@@ -460,7 +460,7 @@ void jtag_scan_io(uint8_t out_offset, uint8_t in_offset)
  *
  * Data stored in EP2 OUT buffer is shifted into the JTAG chain via TDI, TDO
  * data is sampled and stored in the EP2 IN buffer.
- * The TAP-FSM state is alyways left in the PAUSE-DR/PAUSE-IR state.
+ * The TAP-FSM state is always left in the PAUSE-DR/PAUSE-IR state.
  *
  * Maximum achievable TCK frequency is 78 kHz for ULINK clocked at 24 MHz.
  *
@@ -562,7 +562,7 @@ void jtag_slow_scan_io(uint8_t out_offset, uint8_t in_offset)
  *
  * Maximum achievable TCK frequency is 375 kHz for ULINK clocked at 24 MHz.
  *
- * @param count number of TCK clock cyclces to generate.
+ * @param count number of TCK clock cycles to generate.
  */
 void jtag_clock_tck(uint16_t count)
 {
@@ -578,9 +578,9 @@ void jtag_clock_tck(uint16_t count)
 /**
  * Generate TCK clock cycles at variable frequency.
  *
- * Maximum achieveable TCK frequency is 166.6 kHz for ULINK clocked at 24 MHz.
+ * Maximum achievable TCK frequency is 166.6 kHz for ULINK clocked at 24 MHz.
  *
- * @param count number of TCK clock cyclces to generate.
+ * @param count number of TCK clock cycles to generate.
  */
 void jtag_slow_clock_tck(uint16_t count)
 {
diff --git a/src/jtag/drivers/OpenULINK/src/protocol.c b/src/jtag/drivers/OpenULINK/src/protocol.c
index 901f52482..f8f84ed48 100644
--- a/src/jtag/drivers/OpenULINK/src/protocol.c
+++ b/src/jtag/drivers/OpenULINK/src/protocol.c
@@ -86,7 +86,7 @@ bool execute_command(void)
 
 	/* Most commands do not transfer IN data. To save code space, we write 0 to
 	 * usb_in_bytecount here, then modify it in the switch statement below where
-	 * neccessary */
+	 * necessary */
 	usb_in_bytecount = 0;
 
 	switch (OUT2BUF[cmd_id_index] /* Command ID */) {
diff --git a/src/jtag/drivers/OpenULINK/src/usb.c b/src/jtag/drivers/OpenULINK/src/usb.c
index fb77f6482..032b23b57 100644
--- a/src/jtag/drivers/OpenULINK/src/usb.c
+++ b/src/jtag/drivers/OpenULINK/src/usb.c
@@ -38,7 +38,7 @@ volatile bool EP2_in;
 volatile __xdata __at 0x7FE8 struct setup_data setup_data;
 
 /* Define number of endpoints (except Control Endpoint 0) in a central place.
- * Be sure to include the neccessary endpoint descriptors! */
+ * Be sure to include the necessary endpoint descriptors! */
 #define NUM_ENDPOINTS 2
 
 __code struct usb_device_descriptor device_descriptor = {
diff --git a/src/jtag/drivers/bitq.c b/src/jtag/drivers/bitq.c
index 9b4eeed72..2241c13a3 100644
--- a/src/jtag/drivers/bitq.c
+++ b/src/jtag/drivers/bitq.c
@@ -245,7 +245,7 @@ int bitq_execute_queue(void)
 		case JTAG_TLR_RESET:
 			LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
 			bitq_end_state(cmd->cmd.statemove->end_state);
-			bitq_state_move(tap_get_end_state());   /* uncoditional TAP move */
+			bitq_state_move(tap_get_end_state());   /* unconditional TAP move */
 			break;
 
 		case JTAG_PATHMOVE:
diff --git a/src/jtag/drivers/buspirate.c b/src/jtag/drivers/buspirate.c
index 020c4ce39..a6ffe35f5 100644
--- a/src/jtag/drivers/buspirate.c
+++ b/src/jtag/drivers/buspirate.c
@@ -1049,7 +1049,7 @@ static void buspirate_jtag_reset(int fd)
 	tmp[0] = 0x00; /* exit OCD1 mode */
 	buspirate_serial_write(fd, tmp, 1);
 	usleep(10000);
-	/* We ignore the return value here purposly, nothing we can do */
+	/* We ignore the return value here on purpose, nothing we can do */
 	buspirate_serial_read(fd, tmp, 5);
 	if (strncmp((char *)tmp, "BBIO1", 5) == 0) {
 		tmp[0] = 0x0F; /*  reset BP */
diff --git a/src/jtag/drivers/cmsis_dap_usb.c b/src/jtag/drivers/cmsis_dap_usb.c
index d87d0c9a5..efd039af6 100644
--- a/src/jtag/drivers/cmsis_dap_usb.c
+++ b/src/jtag/drivers/cmsis_dap_usb.c
@@ -1003,7 +1003,7 @@ static int cmsis_dap_init(void)
 		LOG_INFO("CMSIS-DAP: Interface Initialised (JTAG)");
 	}
 
-	/* Be conservative and supress submiting multiple HID requests
+	/* Be conservative and suppress submitting multiple HID requests
 	 * until we get packet count info from the adaptor */
 	cmsis_dap_handle->packet_count = 1;
 	pending_queue_len = 12;
diff --git a/src/jtag/drivers/jlink.c b/src/jtag/drivers/jlink.c
index 1baf3454e..91ecf56e1 100644
--- a/src/jtag/drivers/jlink.c
+++ b/src/jtag/drivers/jlink.c
@@ -1807,7 +1807,7 @@ COMMAND_HANDLER(jlink_handle_emucom_read_command)
 		return ERROR_FAIL;
 	} else if (ret == JAYLINK_ERR_DEV_NOT_AVAILABLE) {
 		LOG_ERROR("Channel is not available for the requested amount of data. "
-			"%" PRIu32 " bytes are avilable.", length);
+			"%" PRIu32 " bytes are available.", length);
 		free(buf);
 		return ERROR_FAIL;
 	} else if (ret != JAYLINK_OK) {
diff --git a/src/jtag/drivers/jtag_vpi.c b/src/jtag/drivers/jtag_vpi.c
index a5a95a5a3..a5f441cc7 100644
--- a/src/jtag/drivers/jtag_vpi.c
+++ b/src/jtag/drivers/jtag_vpi.c
@@ -227,7 +227,7 @@ static int jtag_vpi_reset(int trst, int srst)
  * @bits: TMS bits to be written (bit0, bit1 .. bitN)
  * @nb_bits: number of TMS bits (between 1 and 8)
  *
- * Write a serie of TMS transitions, where each transition consists in :
+ * Write a series of TMS transitions, where each transition consists in :
  *  - writing out TCK=0, TMS=<new_state>, TDI=<???>
  *  - writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition
  * The function ensures that at the end of the sequence, the clock (TCK) is put
@@ -253,7 +253,7 @@ static int jtag_vpi_tms_seq(const uint8_t *bits, int nb_bits)
  * jtag_vpi_path_move - ask a TMS sequence transition to JTAG
  * @cmd: path transition
  *
- * Write a serie of TMS transitions, where each transition consists in :
+ * Write a series of TMS transitions, where each transition consists in :
  *  - writing out TCK=0, TMS=<new_state>, TDI=<???>
  *  - writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition
  * The function ensures that at the end of the sequence, the clock (TCK) is put
@@ -392,7 +392,7 @@ static int jtag_vpi_clock_tms(int tms)
  *
  * Launch a JTAG IR-scan or DR-scan
  *
- * Returns ERROR_OK if OK, ERROR_xxx if a read/write error occured.
+ * Returns ERROR_OK if OK, ERROR_xxx if a read/write error occurred.
  */
 static int jtag_vpi_scan(struct scan_command *cmd)
 {
@@ -558,7 +558,7 @@ static int jtag_vpi_init(void)
 	serv_addr.sin_addr.s_addr = inet_addr(server_address);
 
 	if (serv_addr.sin_addr.s_addr == INADDR_NONE) {
-		LOG_ERROR("inet_addr error occured");
+		LOG_ERROR("inet_addr error occurred");
 		return ERROR_FAIL;
 	}
 
@@ -569,7 +569,7 @@ static int jtag_vpi_init(void)
 	}
 
 	if (serv_addr.sin_addr.s_addr == htonl(INADDR_LOOPBACK)) {
-		/* This increases performance drematically for local
+		/* This increases performance dramatically for local
 		 * connections, which is the most likely arrangement
 		 * for a VPI connection. */
 		setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
diff --git a/src/jtag/drivers/kitprog.c b/src/jtag/drivers/kitprog.c
index efb8da2cd..4f38d195d 100644
--- a/src/jtag/drivers/kitprog.c
+++ b/src/jtag/drivers/kitprog.c
@@ -606,7 +606,7 @@ static int kitprog_generic_acquire(void)
 		for (uint8_t j = 0; j < sizeof(devices) && acquire_count == i; j++) {
 			retval = kitprog_acquire_psoc(devices[j], ACQUIRE_MODE_RESET, 3);
 			if (retval != ERROR_OK) {
-				LOG_DEBUG("Aquisition function failed for device 0x%02x.", devices[j]);
+				LOG_DEBUG("Acquisition function failed for device 0x%02x.", devices[j]);
 				return retval;
 			}
 
@@ -746,7 +746,7 @@ static int kitprog_swd_run_queue(void)
 		 * size (64 bytes) as required by the USB specification.
 		 * Therefore libusb would wait for continuation of transmission.
 		 * Workaround: Limit bulk read size to expected number of bytes
-		 * for problematic tranfer sizes. Otherwise use the maximum buffer
+		 * for problematic transfer sizes. Otherwise use the maximum buffer
 		 * size here because the KitProg sometimes doesn't like bulk reads
 		 * of fewer than 62 bytes. (?!?!)
 		 */
diff --git a/src/jtag/drivers/osbdm.c b/src/jtag/drivers/osbdm.c
index dc236660e..5c43d3244 100644
--- a/src/jtag/drivers/osbdm.c
+++ b/src/jtag/drivers/osbdm.c
@@ -274,7 +274,7 @@ static int osbdm_swap(struct osbdm *osbdm, void *tms, void *tdi,
 		return ERROR_FAIL;
 	}
 
-	/* Copy TDO responce
+	/* Copy TDO response
 	 */
 	uint8_t *buffer = osbdm->buffer + 4;
 	for (int bit_idx = 0; bit_idx < length; ) {
diff --git a/src/jtag/drivers/presto.c b/src/jtag/drivers/presto.c
index 3849a27f9..4046b22dd 100644
--- a/src/jtag/drivers/presto.c
+++ b/src/jtag/drivers/presto.c
@@ -351,7 +351,7 @@ static int presto_bitq_out(int tms, int tdi, int tdo_req)
 	unsigned char cmd;
 
 	if (presto->jtag_tck == 0)
-		presto_sendbyte(0xA4);	/* LED idicator - JTAG active */
+		presto_sendbyte(0xA4);	/* LED indicator - JTAG active */
 	else if (presto->jtag_speed == 0 && !tdo_req && tms == presto->jtag_tms) {
 		presto->jtag_tdi_data |= (tdi != 0) << presto->jtag_tdi_count;
 
@@ -392,7 +392,7 @@ static int presto_bitq_flush(void)
 	presto_tdi_flush();
 	presto_tck_idle();
 
-	presto_sendbyte(0xA0);	/* LED idicator - JTAG idle */
+	presto_sendbyte(0xA0);	/* LED indicator - JTAG idle */
 
 	return presto_flush();
 }
diff --git a/src/jtag/drivers/rlink.c b/src/jtag/drivers/rlink.c
index e0533997c..284356466 100644
--- a/src/jtag/drivers/rlink.c
+++ b/src/jtag/drivers/rlink.c
@@ -564,7 +564,7 @@ static struct {
 } dtc_queue;
 
 /*
- * The tap state queue is for accumulating TAP state changes wiithout needlessly
+ * The tap state queue is for accumulating TAP state changes without needlessly
  * flushing the dtc_queue.  When it fills or is run, it adds the accumulated bytes to
  * the dtc_queue.
  */
@@ -1358,7 +1358,7 @@ static int rlink_execute_queue(void)
 		retval = tmp_retval;
 
 #ifndef AUTOMATIC_BUSY_LED
-	/* turn LED onff */
+	/* turn LED off */
 	ep1_generic_commandl(pHDev, 2,
 		EP1_CMD_SET_PORTD_LEDS,
 		~0
diff --git a/src/jtag/drivers/rshim.c b/src/jtag/drivers/rshim.c
index c718af5d2..246e931c2 100644
--- a/src/jtag/drivers/rshim.c
+++ b/src/jtag/drivers/rshim.c
@@ -409,7 +409,7 @@ static int rshim_connect(struct adiv5_dap *dap)
 	}
 
 	/*
-	 * Set read/write operation via the device file. Funtion pointers
+	 * Set read/write operation via the device file. Function pointers
 	 * are used here so more ways like remote accessing via socket could
 	 * be added later.
 	 */
diff --git a/src/jtag/drivers/stlink_usb.c b/src/jtag/drivers/stlink_usb.c
index 72975d5ac..6ae9e3e81 100644
--- a/src/jtag/drivers/stlink_usb.c
+++ b/src/jtag/drivers/stlink_usb.c
@@ -218,7 +218,7 @@ struct stlink_usb_handle_s {
 	uint32_t address
 
 	STLINK_SWIM_RESET
-	send syncronization seq (16us low, response 64 clocks low)
+	send synchronization seq (16us low, response 64 clocks low)
 */
 #define STLINK_SWIM_ENTER                  0x00
 #define STLINK_SWIM_EXIT                   0x01
@@ -1465,7 +1465,7 @@ static int stlink_swim_status(void *handle)
 }
 /*
 	the purpose of this function is unknown...
-	capabilites? anyway for swim v6 it returns
+	capabilities? anyway for swim v6 it returns
 	0001020600000000
 */
 __attribute__((unused))
@@ -1559,7 +1559,7 @@ static int stlink_swim_generate_rst(void *handle)
 }
 
 /*
-	send resyncronize sequence
+	send resynchronize sequence
 	swim is pulled low for 16us
 	reply is 64 clks low
 */
diff --git a/src/jtag/drivers/sysfsgpio.c b/src/jtag/drivers/sysfsgpio.c
index e16076942..78a4c5b77 100644
--- a/src/jtag/drivers/sysfsgpio.c
+++ b/src/jtag/drivers/sysfsgpio.c
@@ -29,7 +29,7 @@
  *
  * A gpio is required for tck, tms, tdi and tdo. One or both of srst and trst
  * must be also be specified. The required jtag gpios are specified via the
- * sysfsgpio_jtag_nums command or the relevant sysfsgpio_XXX_num commang.
+ * sysfsgpio_jtag_nums command or the relevant sysfsgpio_XXX_num commands.
  * The srst and trst gpios are set via the sysfsgpio_srst_num and
  * sysfsgpio_trst_num respectively. GPIO numbering follows the kernel
  * convention of starting from 0.
diff --git a/src/jtag/drivers/ulink.c b/src/jtag/drivers/ulink.c
index 242c04fe3..68249dcfe 100644
--- a/src/jtag/drivers/ulink.c
+++ b/src/jtag/drivers/ulink.c
@@ -1271,7 +1271,7 @@ int ulink_append_test_cmd(struct ulink *device)
  *   1. Maximum possible frequency without any artificial delay
  *   2. Variable frequency with artificial linear delay loop
  *
- * To set the ULINK to maximum frequency, it is only neccessary to use the
+ * To set the ULINK to maximum frequency, it is only necessary to use the
  * corresponding command IDs. To set the ULINK to a lower frequency, the
  * delay loop top values have to be calculated first. Then, a
  * CMD_CONFIGURE_TCK_FREQ command needs to be sent to the ULINK device.
diff --git a/src/jtag/drivers/usb_blaster/README.CheapClone b/src/jtag/drivers/usb_blaster/README.CheapClone
index 983a441a1..bd048d5ca 100644
--- a/src/jtag/drivers/usb_blaster/README.CheapClone
+++ b/src/jtag/drivers/usb_blaster/README.CheapClone
@@ -47,11 +47,11 @@ Pinout
 
 Throughput considerations
 =========================
-Mesurements on a scope reveal that :
- - for bitbang mode, the throughtput is 56.5 kbits/s
-   (as each clock transition is mesured at 17.7us)
+Measurements on a scope reveal that :
+ - for bitbang mode, the throughput is 56.5 kbits/s
+   (as each clock transition is measured at 17.7us)
  - for byteshift mode, the throughput is 107.7 kbits/s
-   (as 63 bits TDI transmission is mesured in 585 us)
+   (as 63 bits TDI transmission is measured in 585 us)
 
 Let's suppose that to upload a 32 bits value, it is necessary to :
  - move from IDLE to DR-SHIFT : 3 bitbang (3 TMS transitions)
@@ -62,8 +62,8 @@ So for this 32 bits of data, the time would be :
  = 53.1us + 222us + 88.5us
  = 363us
 
-Throughtput in bit/s: 32 * (1 / 363E-6) = 88000 bits/s
-Throughtput in bytes/s: 11kBytes/s
+Throughput in bit/s: 32 * (1 / 363E-6) = 88000 bits/s
+Throughput in bytes/s: 11kBytes/s
 
 Conclusion
 ==========
diff --git a/src/jtag/drivers/usb_blaster/ublast2_access_libusb.c b/src/jtag/drivers/usb_blaster/ublast2_access_libusb.c
index e2556cec0..f8ff66e2f 100644
--- a/src/jtag/drivers/usb_blaster/ublast2_access_libusb.c
+++ b/src/jtag/drivers/usb_blaster/ublast2_access_libusb.c
@@ -219,7 +219,7 @@ static int ublast2_libusb_init(struct ublast_lowlevel *low)
 		while (jtag_libusb_open(vids_renum, pids_renum, NULL,
 				&low->libusb_dev, NULL) != ERROR_OK && retry--) {
 			usleep(1000000);
-			LOG_INFO("Waiting for renumerate...");
+			LOG_INFO("Waiting for reenumerate...");
 		}
 
 		if (!retry) {
diff --git a/src/jtag/drivers/usb_blaster/usb_blaster.c b/src/jtag/drivers/usb_blaster/usb_blaster.c
index d30483b63..b5f252164 100644
--- a/src/jtag/drivers/usb_blaster/usb_blaster.c
+++ b/src/jtag/drivers/usb_blaster/usb_blaster.c
@@ -366,10 +366,10 @@ static void ublast_idle_clock(void)
  * Output a TDI bit and assert clock to push it into the JTAG device :
  *  - writing out TCK=0, TMS=<old_state>=0, TDI=<tdi>
  * - writing out TCK=1, TMS=<new_state>, TDI=<tdi> which triggers the JTAG
- *    device aquiring the data.
+ *    device acquiring the data.
  *
  * If a TDO is to be read back, the required read is requested (bitbang mode),
- * and the USB Blaster will send back a byte with bit0 reprensenting the TDO.
+ * and the USB Blaster will send back a byte with bit0 representing the TDO.
  */
 static void ublast_clock_tdi(int tdi, enum scan_type type)
 {
@@ -391,7 +391,7 @@ static void ublast_clock_tdi(int tdi, enum scan_type type)
  * @type: scan type (ie. does a readback of TDO is required)
  *
  * This function is the same as ublast_clock_tdi(), but it changes also the TMS
- * while outputing the TDI. This should be the last TDI output of a TDI
+ * while output the TDI. This should be the last TDI output of a TDI
  * sequence, which will change state from :
  *   - IRSHIFT -> IREXIT1
  *   - or DRSHIFT -> DREXIT1
@@ -447,7 +447,7 @@ static void ublast_queue_bytes(uint8_t *bytes, int nb_bytes)
  * @nb_bits: number of TMS bits (between 1 and 8)
  * @skip: number of TMS bits to skip at the beginning of the series
  *
- * Write a serie of TMS transitions, where each transition consists in :
+ * Write a series of TMS transitions, where each transition consists in :
  *  - writing out TCK=0, TMS=<new_state>, TDI=<???>
  *  - writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition
  * The function ensures that at the end of the sequence, the clock (TCK) is put
@@ -477,7 +477,7 @@ static void ublast_tms(struct tms_command *cmd)
  * ublast_path_move - write a TMS sequence transition to JTAG
  * @cmd: path transition
  *
- * Write a serie of TMS transitions, where each transition consists in :
+ * Write a series of TMS transitions, where each transition consists in :
  *  - writing out TCK=0, TMS=<new_state>, TDI=<???>
  *  - writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition
  * The function ensures that at the end of the sequence, the clock (TCK) is put
@@ -534,7 +534,7 @@ static void ublast_state_move(tap_state_t state, int skip)
  * bit0), second bit in (byte0, bit1), ...), which is what we want to return,
  * simply read bytes from USB interface and store them.
  *
- * Returns ERROR_OK if OK, ERROR_xxx if a read error occured
+ * Returns ERROR_OK if OK, ERROR_xxx if a read error occurred
  */
 static int ublast_read_byteshifted_tdos(uint8_t *buf, int nb_bytes)
 {
@@ -564,7 +564,7 @@ static int ublast_read_byteshifted_tdos(uint8_t *buf, int nb_bytes)
  *  - ninth bit is sotred in byte1, bit 0
  *  - etc ...
  *
- * Returns ERROR_OK if OK, ERROR_xxx if a read error occured
+ * Returns ERROR_OK if OK, ERROR_xxx if a read error occurred
  */
 static int ublast_read_bitbang_tdos(uint8_t *buf, int nb_bits)
 {
@@ -596,7 +596,7 @@ static int ublast_read_bitbang_tdos(uint8_t *buf, int nb_bits)
  * @nb_bits: number of bits
  * @scan: scan type (ie. if TDO read back is required or not)
  *
- * Outputs a serie of TDI bits on TDI.
+ * Outputs a series of TDI bits on TDI.
  * As a side effect, the last TDI bit is sent along a TMS=1, and triggers a JTAG
  * TAP state shift if input bits were non NULL.
  *
@@ -707,7 +707,7 @@ static void ublast_stableclocks(int cycles)
  *
  * Launch a JTAG IR-scan or DR-scan
  *
- * Returns ERROR_OK if OK, ERROR_xxx if a read/write error occured.
+ * Returns ERROR_OK if OK, ERROR_xxx if a read/write error occurred.
  */
 static int ublast_scan(struct scan_command *cmd)
 {
diff --git a/src/jtag/drivers/usbprog.c b/src/jtag/drivers/usbprog.c
index 7b27eaff2..67cad58f4 100644
--- a/src/jtag/drivers/usbprog.c
+++ b/src/jtag/drivers/usbprog.c
@@ -403,11 +403,11 @@ static void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag)
 
 static void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 {
-	char tmp[64];	/* fastes packet size for usb controller */
+	char tmp[64];	/* fastest packet size for usb controller */
 	int send_bits, bufindex = 0, fillindex = 0, i, loops;
 
 	char swap;
-	/* 61 byte can be transfered (488 bit) */
+	/* 61 byte can be transferred (488 bit) */
 
 	while (size > 0) {
 		if (size > 488) {
@@ -449,11 +449,11 @@ static void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char
 
 static void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 {
-	char tmp[64];	/* fastes packet size for usb controller */
+	char tmp[64];	/* fastest packet size for usb controller */
 	int send_bits, fillindex = 0, i, loops;
 
 	char swap;
-	/* 61 byte can be transfered (488 bit) */
+	/* 61 byte can be transferred (488 bit) */
 
 	while (size > 0) {
 		if (size > 488) {
@@ -490,10 +490,10 @@ static void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char *buffe
 
 static void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 {
-	char tmp[64];	/* fastes packet size for usb controller */
+	char tmp[64];	/* fastest packet size for usb controller */
 	int send_bits, bufindex = 0, i, loops;
 
-	/* 61 byte can be transfered (488 bit) */
+	/* 61 byte can be transferred (488 bit) */
 	while (size > 0) {
 		if (size > 488) {
 			send_bits = 488;
diff --git a/src/jtag/drivers/versaloon/usbtoxxx/usbtoxxx_internal.h b/src/jtag/drivers/versaloon/usbtoxxx/usbtoxxx_internal.h
index e40667e91..36988869a 100644
--- a/src/jtag/drivers/versaloon/usbtoxxx/usbtoxxx_internal.h
+++ b/src/jtag/drivers/versaloon/usbtoxxx/usbtoxxx_internal.h
@@ -76,7 +76,7 @@
 #define USB_TO_POLL_CHECKFAIL                   0x03
 #define USB_TO_POLL_VERIFYBUFF                  0x04
 
-/* USB_TO_XXX Replys */
+/* USB_TO_XXX Replies */
 #define USB_TO_XXX_OK                           0x00
 #define USB_TO_XXX_FAILED                       0x01
 #define USB_TO_XXX_TIME_OUT                     0x02
diff --git a/src/jtag/drivers/versaloon/versaloon.c b/src/jtag/drivers/versaloon/versaloon.c
index 146383961..35a0deff5 100644
--- a/src/jtag/drivers/versaloon/versaloon.c
+++ b/src/jtag/drivers/versaloon/versaloon.c
@@ -248,7 +248,7 @@ RESULT versaloon_init(void)
 
 	/* connect to versaloon */
 	timeout_tmp = versaloon_usb_to;
-	/* not output error message when connectting */
+	/* not output error message when connecting */
 	/* 100ms delay when connect */
 	versaloon_usb_to = 100;
 	for (retry = 0; retry < VERSALOON_RETRY_CNT; retry++) {
diff --git a/src/jtag/drivers/versaloon/versaloon_include.h b/src/jtag/drivers/versaloon/versaloon_include.h
index 089056d02..901402520 100644
--- a/src/jtag/drivers/versaloon/versaloon_include.h
+++ b/src/jtag/drivers/versaloon/versaloon_include.h
@@ -41,7 +41,7 @@
 #define ERRMSG_INVALID_USAGE				"Invalid usage of %s"
 #define ERRMSG_INVALID_TARGET				"Invalid %s"
 #define ERRMSG_INVALID_PARAMETER			"Invalid parameter of %s."
-#define ERRMSG_INVALID_INTERFACE_NUM		"invalid inteface %d"
+#define ERRMSG_INVALID_INTERFACE_NUM		"invalid interface %d"
 #define ERRMSG_INVALID_BUFFER				"Buffer %s is not valid."
 #define ERRCODE_INVALID_BUFFER				ERROR_FAIL
 #define ERRCODE_INVALID_PARAMETER			ERROR_FAIL
diff --git a/src/jtag/drivers/xds110.c b/src/jtag/drivers/xds110.c
index 5e4df93c2..67c4a3b12 100644
--- a/src/jtag/drivers/xds110.c
+++ b/src/jtag/drivers/xds110.c
@@ -1129,7 +1129,7 @@ static int xds110_swd_switch_seq(enum swd_special_seq seq)
 		xds110.is_cmapi_acquired = false;
 		/* Run sequence to put target in SWD mode */
 		success = swd_connect();
-		/* Re-iniitialize CMAPI API for DAP access */
+		/* Re-initialize CMAPI API for DAP access */
 		if (success) {
 			xds110.is_swd_mode = true;
 			success = cmapi_connect(&idcode);
diff --git a/src/jtag/drivers/xlnx-pcie-xvc.c b/src/jtag/drivers/xlnx-pcie-xvc.c
index 704c1d96b..43993c897 100644
--- a/src/jtag/drivers/xlnx-pcie-xvc.c
+++ b/src/jtag/drivers/xlnx-pcie-xvc.c
@@ -54,7 +54,7 @@ static int xlnx_pcie_xvc_read_reg(const int offset, uint32_t *val)
 	uint32_t res;
 	int err;
 
-	/* Note: This should be ok endianess-wise because by going
+	/* Note: This should be ok endianness-wise because by going
 	 * through sysfs the kernel does the conversion in the config
 	 * space accessor functions
 	 */
@@ -75,7 +75,7 @@ static int xlnx_pcie_xvc_write_reg(const int offset, const uint32_t val)
 {
 	int err;
 
-	/* Note: This should be ok endianess-wise because by going
+	/* Note: This should be ok endianness-wise because by going
 	 * through sysfs the kernel does the conversion in the config
 	 * space accessor functions
 	 */
diff --git a/src/jtag/hla/hla_interface.c b/src/jtag/hla/hla_interface.c
index 6d5cdc5e7..7be9b2dea 100644
--- a/src/jtag/hla/hla_interface.c
+++ b/src/jtag/hla/hla_interface.c
@@ -312,7 +312,7 @@ static const struct command_registration hl_interface_command_handlers[] = {
 	 .name = "hla_device_desc",
 	 .handler = &hl_interface_handle_device_desc_command,
 	 .mode = COMMAND_CONFIG,
-	 .help = "set the a device description of the adapter",
+	 .help = "set the device description of the adapter",
 	 .usage = "description_string",
 	 },
 	{
diff --git a/src/jtag/interface.h b/src/jtag/interface.h
index 42598c1ae..0884868a8 100644
--- a/src/jtag/interface.h
+++ b/src/jtag/interface.h
@@ -273,7 +273,7 @@ struct adapter_driver {
 	int (*speed)(int speed);
 
 	/**
-	 * Returns JTAG maxium speed for KHz. 0 = RTCK. The function returns
+	 * Returns JTAG maximum speed for KHz. 0 = RTCK. The function returns
 	 *  a failure if it can't support the KHz/RTCK.
 	 *
 	 *  WARNING!!!! if RTCK is *slow* then think carefully about
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h
index 9350642ff..2fa580223 100644
--- a/src/jtag/jtag.h
+++ b/src/jtag/jtag.h
@@ -210,11 +210,11 @@ struct jtag_tap_event_action {
 };
 
 /**
- * Defines the function signature requide for JTAG event callback
+ * Defines the function signature required for JTAG event callback
  * functions, which are added with jtag_register_event_callback()
  * and removed jtag_unregister_event_callback().
  * @param event The event to handle.
- * @param prive A pointer to data that was passed to
+ * @param priv A pointer to data that was passed to
  *	jtag_register_event_callback().
  * @returns Must return ERROR_OK on success, or an error code on failure.
  *
@@ -249,7 +249,7 @@ int jtag_config_khz(unsigned khz);
  */
 int jtag_config_rclk(unsigned fallback_speed_khz);
 
-/** Retreives the clock speed of the JTAG interface in KHz. */
+/** Retrieves the clock speed of the JTAG interface in KHz. */
 unsigned jtag_get_speed_khz(void);
 
 enum reset_types {
@@ -407,7 +407,7 @@ void jtag_add_callback(jtag_callback1_t f, jtag_callback_data_t data0);
  * assumptions about what the callback does or what its arguments are.
  * These callbacks are typically executed *after* the *entire* JTAG
  * queue has been executed for e.g. USB interfaces, and they are
- * guaranteeed to be invoked in the order that they were queued.
+ * guaranteed to be invoked in the order that they were queued.
  *
  * If the execution of the queue fails before the callbacks, then --
  * depending on driver implementation -- the callbacks may or may not be
@@ -457,7 +457,7 @@ void jtag_add_tlr(void);
  * path when transitioning to/from end
  * state.
  *
- * A list of unambigious single clock state transitions, not
+ * A list of unambiguous single clock state transitions, not
  * all drivers can support this, but it is required for e.g.
  * XScale and Xilinx support
  *
diff --git a/src/jtag/minidriver.h b/src/jtag/minidriver.h
index 688c39630..ad830cc13 100644
--- a/src/jtag/minidriver.h
+++ b/src/jtag/minidriver.h
@@ -74,7 +74,7 @@ int interface_add_tms_seq(unsigned num_bits,
  * trst.
  *
  * the higher level jtag_add_reset will invoke jtag_add_tlr() if
- * approperiate
+ * appropriate
  */
 int interface_jtag_add_reset(int trst, int srst);
 int interface_jtag_add_sleep(uint32_t us);
diff --git a/src/jtag/startup.tcl b/src/jtag/startup.tcl
index f8c4ca0bf..90b675f18 100644
--- a/src/jtag/startup.tcl
+++ b/src/jtag/startup.tcl
@@ -115,7 +115,7 @@ proc jtag_ntrst_assert_width args {
 
 # BEGIN MIGRATION AIDS ...  these adapter operations originally had
 # JTAG-specific names despite the fact that the operations were not
-# specific to JTAG, or otherewise had troublesome/misleading names.
+# specific to JTAG, or otherwise had troublesome/misleading names.
 #
 # FIXME phase these aids out after about April 2011
 #