diff --git a/02_runtime_init/Cargo.lock b/02_runtime_init/Cargo.lock
index 19fc8b73..0eafa2a5 100644
--- a/02_runtime_init/Cargo.lock
+++ b/02_runtime_init/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/03_hacky_hello_world/Cargo.lock b/03_hacky_hello_world/Cargo.lock
index cdaf44bf..7f24b65a 100644
--- a/03_hacky_hello_world/Cargo.lock
+++ b/03_hacky_hello_world/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/04_safe_globals/Cargo.lock b/04_safe_globals/Cargo.lock
index 08a979d5..d9a502e1 100644
--- a/04_safe_globals/Cargo.lock
+++ b/04_safe_globals/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/05_drivers_gpio_uart/Cargo.lock b/05_drivers_gpio_uart/Cargo.lock
index ff66f548..926733bc 100644
--- a/05_drivers_gpio_uart/Cargo.lock
+++ b/05_drivers_gpio_uart/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/06_uart_chainloader/Cargo.lock b/06_uart_chainloader/Cargo.lock
index c642ff43..5b7f9177 100644
--- a/06_uart_chainloader/Cargo.lock
+++ b/06_uart_chainloader/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/06_uart_chainloader/demo_payload_rpi3.img b/06_uart_chainloader/demo_payload_rpi3.img
index f49c5288..011abf13 100755
Binary files a/06_uart_chainloader/demo_payload_rpi3.img and b/06_uart_chainloader/demo_payload_rpi3.img differ
diff --git a/06_uart_chainloader/demo_payload_rpi4.img b/06_uart_chainloader/demo_payload_rpi4.img
index fa4374e9..12bafdc6 100755
Binary files a/06_uart_chainloader/demo_payload_rpi4.img and b/06_uart_chainloader/demo_payload_rpi4.img differ
diff --git a/07_timestamps/Cargo.lock b/07_timestamps/Cargo.lock
index dab65cbb..a03a0377 100644
--- a/07_timestamps/Cargo.lock
+++ b/07_timestamps/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/08_hw_debug_JTAG/Cargo.lock b/08_hw_debug_JTAG/Cargo.lock
index 2abe1c74..e09d7f93 100644
--- a/08_hw_debug_JTAG/Cargo.lock
+++ b/08_hw_debug_JTAG/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/09_privilege_level/Cargo.lock b/09_privilege_level/Cargo.lock
index f65b5430..84e7bc9e 100644
--- a/09_privilege_level/Cargo.lock
+++ b/09_privilege_level/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/10_virtual_mem_part1_identity_mapping/Cargo.lock b/10_virtual_mem_part1_identity_mapping/Cargo.lock
index 23fe8e43..abfcc70f 100644
--- a/10_virtual_mem_part1_identity_mapping/Cargo.lock
+++ b/10_virtual_mem_part1_identity_mapping/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/11_exceptions_part1_groundwork/Cargo.lock b/11_exceptions_part1_groundwork/Cargo.lock
index 2c16d5d5..6c3288ea 100644
--- a/11_exceptions_part1_groundwork/Cargo.lock
+++ b/11_exceptions_part1_groundwork/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/12_integrated_testing/Cargo.lock b/12_integrated_testing/Cargo.lock
index 7294834d..39f1503e 100644
--- a/12_integrated_testing/Cargo.lock
+++ b/12_integrated_testing/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
@@ -24,33 +24,33 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "qemu-exit"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e0fa04276d522a40ed717bf874183a3b2a8bbb3fb4c646b03a7eb874ce5d543"
+checksum = "9ff023245bfcc73fb890e1f8d5383825b3131cc920020a5c487d6f113dfc428a"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/13_exceptions_part2_peripheral_IRQs/Cargo.lock b/13_exceptions_part2_peripheral_IRQs/Cargo.lock
index b3514b23..ae9530ef 100644
--- a/13_exceptions_part2_peripheral_IRQs/Cargo.lock
+++ b/13_exceptions_part2_peripheral_IRQs/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
@@ -24,33 +24,33 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "qemu-exit"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e0fa04276d522a40ed717bf874183a3b2a8bbb3fb4c646b03a7eb874ce5d543"
+checksum = "9ff023245bfcc73fb890e1f8d5383825b3131cc920020a5c487d6f113dfc428a"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/14_virtual_mem_part2_mmio_remap/Cargo.lock b/14_virtual_mem_part2_mmio_remap/Cargo.lock
index 38d026fd..acc61594 100644
--- a/14_virtual_mem_part2_mmio_remap/Cargo.lock
+++ b/14_virtual_mem_part2_mmio_remap/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
@@ -24,33 +24,33 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "qemu-exit"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e0fa04276d522a40ed717bf874183a3b2a8bbb3fb4c646b03a7eb874ce5d543"
+checksum = "9ff023245bfcc73fb890e1f8d5383825b3131cc920020a5c487d6f113dfc428a"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/15_virtual_mem_part3_precomputed_tables/Cargo.lock b/15_virtual_mem_part3_precomputed_tables/Cargo.lock
index 6c03310c..231e7643 100644
--- a/15_virtual_mem_part3_precomputed_tables/Cargo.lock
+++ b/15_virtual_mem_part3_precomputed_tables/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
@@ -24,33 +24,33 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "qemu-exit"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e0fa04276d522a40ed717bf874183a3b2a8bbb3fb4c646b03a7eb874ce5d543"
+checksum = "9ff023245bfcc73fb890e1f8d5383825b3131cc920020a5c487d6f113dfc428a"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/16_virtual_mem_part4_higher_half_kernel/Cargo.lock b/16_virtual_mem_part4_higher_half_kernel/Cargo.lock
index 13d1d928..dd78c932 100644
--- a/16_virtual_mem_part4_higher_half_kernel/Cargo.lock
+++ b/16_virtual_mem_part4_higher_half_kernel/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
@@ -24,33 +24,33 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "qemu-exit"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e0fa04276d522a40ed717bf874183a3b2a8bbb3fb4c646b03a7eb874ce5d543"
+checksum = "9ff023245bfcc73fb890e1f8d5383825b3131cc920020a5c487d6f113dfc428a"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/X1_JTAG_boot/Cargo.lock b/X1_JTAG_boot/Cargo.lock
index 2abe1c74..e09d7f93 100644
--- a/X1_JTAG_boot/Cargo.lock
+++ b/X1_JTAG_boot/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "cortex-a"
-version = "7.0.0"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27f5d071b671f9799dfdf0c0afcec11de65195383d36e186639c83b00705e4f"
+checksum = "5bd95fd055d118f77d4e4d527201b6ceccd13586b19b4dac1270f7081fef0f98"
 dependencies = [
  "tock-registers",
 ]
diff --git a/X1_JTAG_boot/jtag_boot_rpi3.img b/X1_JTAG_boot/jtag_boot_rpi3.img
index 76a5d4c6..e705a98f 100755
Binary files a/X1_JTAG_boot/jtag_boot_rpi3.img and b/X1_JTAG_boot/jtag_boot_rpi3.img differ
diff --git a/X1_JTAG_boot/jtag_boot_rpi4.img b/X1_JTAG_boot/jtag_boot_rpi4.img
index ec6a26ea..109e47ab 100755
Binary files a/X1_JTAG_boot/jtag_boot_rpi4.img and b/X1_JTAG_boot/jtag_boot_rpi4.img differ