diff --git a/README.md b/README.md
index 5d285e5..96258b9 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ Read the [Contributing Guide](https://github.com/earlephilhower/arduino-pico/blo
 * Pimoroni PGA2040
 * Seeed Indicator RP2040
 * Seeed XIAO RP2040
+* Silicognition RP2040-Shim
 * Solder Party RP2040 Stamp
 * SparkFun ProMicro RP2040
 * SparkFun Thing Plus RP2040
diff --git a/boards.txt b/boards.txt
index 5b43cbb..ff20604 100644
--- a/boards.txt
+++ b/boards.txt
@@ -10964,6 +10964,224 @@ pimoroni_plasma2040.menu.uploadmethod.picodebug.upload.maximum_data_size=245760
 pimoroni_plasma2040.menu.uploadmethod.picodebug.upload.tool=picodebug
 pimoroni_plasma2040.menu.uploadmethod.picodebug.upload.tool.default=picodebug
 
+# -----------------------------------
+# Silicognition RP2040-Shim
+# -----------------------------------
+silicognition_rp2040_shim.name=Silicognition RP2040-Shim
+silicognition_rp2040_shim.vid.0=0x1209
+silicognition_rp2040_shim.pid.0=0xf502
+silicognition_rp2040_shim.vid.1=0x1209
+silicognition_rp2040_shim.pid.1=0xf502
+silicognition_rp2040_shim.vid.2=0x1209
+silicognition_rp2040_shim.pid.2=0xf502
+silicognition_rp2040_shim.vid.3=0x1209
+silicognition_rp2040_shim.pid.3=0xf502
+silicognition_rp2040_shim.vid.4=0x1209
+silicognition_rp2040_shim.pid.4=0xf502
+silicognition_rp2040_shim.vid.5=0x1209
+silicognition_rp2040_shim.pid.5=0xf502
+silicognition_rp2040_shim.vid.6=0x1209
+silicognition_rp2040_shim.pid.6=0xf502
+silicognition_rp2040_shim.vid.7=0x1209
+silicognition_rp2040_shim.pid.7=0xf502
+silicognition_rp2040_shim.build.usbvid=-DUSBD_VID=0x1209
+silicognition_rp2040_shim.build.usbpid=-DUSBD_PID=0xf502
+silicognition_rp2040_shim.build.usbpwr=-DUSBD_MAX_POWER_MA=500
+silicognition_rp2040_shim.build.board=SILICOGNITION_RP2040_SHIM
+silicognition_rp2040_shim.build.mcu=cortex-m0plus
+silicognition_rp2040_shim.build.variant=silicognition_rp2040_shim
+silicognition_rp2040_shim.upload.maximum_size=4194304
+silicognition_rp2040_shim.upload.wait_for_upload_port=true
+silicognition_rp2040_shim.upload.erase_cmd=
+silicognition_rp2040_shim.serial.disableDTR=false
+silicognition_rp2040_shim.serial.disableRTS=false
+silicognition_rp2040_shim.build.f_cpu=125000000
+silicognition_rp2040_shim.build.led=
+silicognition_rp2040_shim.build.core=rp2040
+silicognition_rp2040_shim.build.ldscript=memmap_default.ld
+silicognition_rp2040_shim.build.boot2=boot2_generic_03h_4_padded_checksum
+silicognition_rp2040_shim.build.usb_manufacturer="Silicognition"
+silicognition_rp2040_shim.build.usb_product="RP2040-Shim"
+silicognition_rp2040_shim.menu.flash.4194304_0=4MB (no FS)
+silicognition_rp2040_shim.menu.flash.4194304_0.upload.maximum_size=4190208
+silicognition_rp2040_shim.menu.flash.4194304_0.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_0.build.flash_length=4190208
+silicognition_rp2040_shim.menu.flash.4194304_0.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_0.build.fs_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_0.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_65536=4MB (Sketch: 4032KB, FS: 64KB)
+silicognition_rp2040_shim.menu.flash.4194304_65536.upload.maximum_size=4124672
+silicognition_rp2040_shim.menu.flash.4194304_65536.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_65536.build.flash_length=4124672
+silicognition_rp2040_shim.menu.flash.4194304_65536.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_65536.build.fs_start=272560128
+silicognition_rp2040_shim.menu.flash.4194304_65536.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_131072=4MB (Sketch: 3968KB, FS: 128KB)
+silicognition_rp2040_shim.menu.flash.4194304_131072.upload.maximum_size=4059136
+silicognition_rp2040_shim.menu.flash.4194304_131072.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_131072.build.flash_length=4059136
+silicognition_rp2040_shim.menu.flash.4194304_131072.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_131072.build.fs_start=272494592
+silicognition_rp2040_shim.menu.flash.4194304_131072.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_262144=4MB (Sketch: 3840KB, FS: 256KB)
+silicognition_rp2040_shim.menu.flash.4194304_262144.upload.maximum_size=3928064
+silicognition_rp2040_shim.menu.flash.4194304_262144.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_262144.build.flash_length=3928064
+silicognition_rp2040_shim.menu.flash.4194304_262144.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_262144.build.fs_start=272363520
+silicognition_rp2040_shim.menu.flash.4194304_262144.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_524288=4MB (Sketch: 3584KB, FS: 512KB)
+silicognition_rp2040_shim.menu.flash.4194304_524288.upload.maximum_size=3665920
+silicognition_rp2040_shim.menu.flash.4194304_524288.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_524288.build.flash_length=3665920
+silicognition_rp2040_shim.menu.flash.4194304_524288.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_524288.build.fs_start=272101376
+silicognition_rp2040_shim.menu.flash.4194304_524288.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_1048576=4MB (Sketch: 3MB, FS: 1MB)
+silicognition_rp2040_shim.menu.flash.4194304_1048576.upload.maximum_size=3141632
+silicognition_rp2040_shim.menu.flash.4194304_1048576.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_1048576.build.flash_length=3141632
+silicognition_rp2040_shim.menu.flash.4194304_1048576.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_1048576.build.fs_start=271577088
+silicognition_rp2040_shim.menu.flash.4194304_1048576.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_2097152=4MB (Sketch: 2MB, FS: 2MB)
+silicognition_rp2040_shim.menu.flash.4194304_2097152.upload.maximum_size=2093056
+silicognition_rp2040_shim.menu.flash.4194304_2097152.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_2097152.build.flash_length=2093056
+silicognition_rp2040_shim.menu.flash.4194304_2097152.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_2097152.build.fs_start=270528512
+silicognition_rp2040_shim.menu.flash.4194304_2097152.build.fs_end=272625664
+silicognition_rp2040_shim.menu.flash.4194304_3145728=4MB (Sketch: 1MB, FS: 3MB)
+silicognition_rp2040_shim.menu.flash.4194304_3145728.upload.maximum_size=1044480
+silicognition_rp2040_shim.menu.flash.4194304_3145728.build.flash_total=4194304
+silicognition_rp2040_shim.menu.flash.4194304_3145728.build.flash_length=1044480
+silicognition_rp2040_shim.menu.flash.4194304_3145728.build.eeprom_start=272625664
+silicognition_rp2040_shim.menu.flash.4194304_3145728.build.fs_start=269479936
+silicognition_rp2040_shim.menu.flash.4194304_3145728.build.fs_end=272625664
+silicognition_rp2040_shim.menu.freq.133=133 MHz
+silicognition_rp2040_shim.menu.freq.133.build.f_cpu=133000000L
+silicognition_rp2040_shim.menu.freq.50=50 MHz
+silicognition_rp2040_shim.menu.freq.50.build.f_cpu=50000000L
+silicognition_rp2040_shim.menu.freq.100=100 MHz
+silicognition_rp2040_shim.menu.freq.100.build.f_cpu=100000000L
+silicognition_rp2040_shim.menu.freq.120=120 MHz
+silicognition_rp2040_shim.menu.freq.120.build.f_cpu=120000000L
+silicognition_rp2040_shim.menu.freq.125=125 MHz
+silicognition_rp2040_shim.menu.freq.125.build.f_cpu=125000000L
+silicognition_rp2040_shim.menu.freq.150=150 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.150.build.f_cpu=150000000L
+silicognition_rp2040_shim.menu.freq.175=175 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.175.build.f_cpu=175000000L
+silicognition_rp2040_shim.menu.freq.200=200 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.200.build.f_cpu=200000000L
+silicognition_rp2040_shim.menu.freq.225=225 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.225.build.f_cpu=225000000L
+silicognition_rp2040_shim.menu.freq.240=240 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.240.build.f_cpu=240000000L
+silicognition_rp2040_shim.menu.freq.250=250 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.250.build.f_cpu=250000000L
+silicognition_rp2040_shim.menu.freq.275=275 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.275.build.f_cpu=275000000L
+silicognition_rp2040_shim.menu.freq.300=300 MHz (Overclock)
+silicognition_rp2040_shim.menu.freq.300.build.f_cpu=300000000L
+silicognition_rp2040_shim.menu.opt.Small=Small (-Os) (standard)
+silicognition_rp2040_shim.menu.opt.Small.build.flags.optimize=-Os
+silicognition_rp2040_shim.menu.opt.Optimize=Optimize (-O)
+silicognition_rp2040_shim.menu.opt.Optimize.build.flags.optimize=-O
+silicognition_rp2040_shim.menu.opt.Optimize2=Optimize More (-O2)
+silicognition_rp2040_shim.menu.opt.Optimize2.build.flags.optimize=-O2
+silicognition_rp2040_shim.menu.opt.Optimize3=Optimize Even More (-O3)
+silicognition_rp2040_shim.menu.opt.Optimize3.build.flags.optimize=-O3
+silicognition_rp2040_shim.menu.opt.Fast=Fast (-Ofast) (maybe slower)
+silicognition_rp2040_shim.menu.opt.Fast.build.flags.optimize=-Ofast
+silicognition_rp2040_shim.menu.opt.Debug=Debug (-Og)
+silicognition_rp2040_shim.menu.opt.Debug.build.flags.optimize=-Og
+silicognition_rp2040_shim.menu.rtti.Disabled=Disabled
+silicognition_rp2040_shim.menu.rtti.Disabled.build.flags.rtti=-fno-rtti
+silicognition_rp2040_shim.menu.rtti.Enabled=Enabled
+silicognition_rp2040_shim.menu.rtti.Enabled.build.flags.rtti=
+silicognition_rp2040_shim.menu.stackprotect.Disabled=Disabled
+silicognition_rp2040_shim.menu.stackprotect.Disabled.build.flags.stackprotect=
+silicognition_rp2040_shim.menu.stackprotect.Enabled=Enabled
+silicognition_rp2040_shim.menu.stackprotect.Enabled.build.flags.stackprotect=-fstack-protector
+silicognition_rp2040_shim.menu.exceptions.Disabled=Disabled
+silicognition_rp2040_shim.menu.exceptions.Disabled.build.flags.exceptions=-fno-exceptions
+silicognition_rp2040_shim.menu.exceptions.Disabled.build.flags.libstdcpp=-lstdc++
+silicognition_rp2040_shim.menu.exceptions.Enabled=Enabled
+silicognition_rp2040_shim.menu.exceptions.Enabled.build.flags.exceptions=-fexceptions
+silicognition_rp2040_shim.menu.exceptions.Enabled.build.flags.libstdcpp=-lstdc++-exc
+silicognition_rp2040_shim.menu.dbgport.Disabled=Disabled
+silicognition_rp2040_shim.menu.dbgport.Disabled.build.debug_port=
+silicognition_rp2040_shim.menu.dbgport.Serial=Serial
+silicognition_rp2040_shim.menu.dbgport.Serial.build.debug_port=-DDEBUG_RP2040_PORT=Serial
+silicognition_rp2040_shim.menu.dbgport.Serial1=Serial1
+silicognition_rp2040_shim.menu.dbgport.Serial1.build.debug_port=-DDEBUG_RP2040_PORT=Serial1
+silicognition_rp2040_shim.menu.dbgport.Serial2=Serial2
+silicognition_rp2040_shim.menu.dbgport.Serial2.build.debug_port=-DDEBUG_RP2040_PORT=Serial2
+silicognition_rp2040_shim.menu.dbglvl.None=None
+silicognition_rp2040_shim.menu.dbglvl.None.build.debug_level=
+silicognition_rp2040_shim.menu.dbglvl.Core=Core
+silicognition_rp2040_shim.menu.dbglvl.Core.build.debug_level=-DDEBUG_RP2040_CORE
+silicognition_rp2040_shim.menu.dbglvl.SPI=SPI
+silicognition_rp2040_shim.menu.dbglvl.SPI.build.debug_level=-DDEBUG_RP2040_SPI
+silicognition_rp2040_shim.menu.dbglvl.Wire=Wire
+silicognition_rp2040_shim.menu.dbglvl.Wire.build.debug_level=-DDEBUG_RP2040_WIRE
+silicognition_rp2040_shim.menu.dbglvl.All=All
+silicognition_rp2040_shim.menu.dbglvl.All.build.debug_level=-DDEBUG_RP2040_WIRE -DDEBUG_RP2040_SPI -DDEBUG_RP2040_CORE
+silicognition_rp2040_shim.menu.dbglvl.NDEBUG=NDEBUG
+silicognition_rp2040_shim.menu.dbglvl.NDEBUG.build.debug_level=-DNDEBUG
+silicognition_rp2040_shim.menu.usbstack.picosdk=Pico SDK
+silicognition_rp2040_shim.menu.usbstack.picosdk.build.usbstack_flags=
+silicognition_rp2040_shim.menu.usbstack.tinyusb=Adafruit TinyUSB
+silicognition_rp2040_shim.menu.usbstack.tinyusb.build.usbstack_flags=-DUSE_TINYUSB "-I{runtime.platform.path}/libraries/Adafruit_TinyUSB_Arduino/src/arduino"
+silicognition_rp2040_shim.menu.usbstack.nousb=No USB
+silicognition_rp2040_shim.menu.usbstack.nousb.build.usbstack_flags="-DNO_USB -DDISABLE_USB_SERIAL -I{runtime.platform.path}/tools/libpico"
+silicognition_rp2040_shim.menu.ipbtstack.ipv4only=IPv4 Only
+silicognition_rp2040_shim.menu.ipbtstack.ipv4only.build.libpicow=libpicow-noipv6-nobtc-noble.a
+silicognition_rp2040_shim.menu.ipbtstack.ipv4only.build.libpicowdefs=-DLWIP_IPV6=0 -DLWIP_IPV4=1
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6=IPv4 + IPv6
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6.build.libpicow=libpicow-ipv6-nobtc-noble.a
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6.build.libpicowdefs=-DLWIP_IPV6=1 -DLWIP_IPV4=1
+silicognition_rp2040_shim.menu.ipbtstack.ipv4btcble=IPv4 + Bluetooth
+silicognition_rp2040_shim.menu.ipbtstack.ipv4btcble.build.libpicow=libpicow-noipv6-btc-ble.a
+silicognition_rp2040_shim.menu.ipbtstack.ipv4btcble.build.libpicowdefs=-DLWIP_IPV6=0 -DLWIP_IPV4=1 -DENABLE_CLASSIC=1 -DENABLE_BLE=1
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6btcble=IPv4 + IPv6 + Bluetooth
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6btcble.build.libpicow=libpicow-ipv6-btc-ble.a
+silicognition_rp2040_shim.menu.ipbtstack.ipv4ipv6btcble.build.libpicowdefs=-DLWIP_IPV6=1 -DLWIP_IPV4=1 -DENABLE_CLASSIC=1 -DENABLE_BLE=1
+silicognition_rp2040_shim.menu.uploadmethod.default=Default (UF2)
+silicognition_rp2040_shim.menu.uploadmethod.default.build.ram_length=256k
+silicognition_rp2040_shim.menu.uploadmethod.default.build.debugscript=picoprobe_cmsis_dap.tcl
+silicognition_rp2040_shim.menu.uploadmethod.default.upload.maximum_data_size=262144
+silicognition_rp2040_shim.menu.uploadmethod.default.upload.tool=uf2conv
+silicognition_rp2040_shim.menu.uploadmethod.default.upload.tool.default=uf2conv
+silicognition_rp2040_shim.menu.uploadmethod.default.upload.tool.network=uf2conv-network
+silicognition_rp2040_shim.menu.uploadmethod.picotool=Picotool
+silicognition_rp2040_shim.menu.uploadmethod.picotool.build.ram_length=256k
+silicognition_rp2040_shim.menu.uploadmethod.picotool.build.debugscript=picoprobe.tcl
+silicognition_rp2040_shim.menu.uploadmethod.picotool.build.picodebugflags=-DENABLE_PICOTOOL_USB
+silicognition_rp2040_shim.menu.uploadmethod.picotool.upload.maximum_data_size=262144
+silicognition_rp2040_shim.menu.uploadmethod.picotool.upload.tool=picotool
+silicognition_rp2040_shim.menu.uploadmethod.picotool.upload.tool.default=picotool
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe=Picoprobe
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe.build.ram_length=256k
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe.build.debugscript=picoprobe.tcl
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe.upload.maximum_data_size=262144
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe.upload.tool=picoprobe
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe.upload.tool.default=picoprobe
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap=Picoprobe (CMSIS-DAP)
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap.build.ram_length=256k
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap.build.debugscript=picoprobe_cmsis_dap.tcl
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap.upload.maximum_data_size=262144
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap.upload.tool=picoprobe_cmsis_dap
+silicognition_rp2040_shim.menu.uploadmethod.picoprobe_cmsis_dap.upload.tool.default=picoprobe_cmsis_dap
+silicognition_rp2040_shim.menu.uploadmethod.picodebug=Pico-Debug
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.build.ram_length=240k
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.build.debugscript=picodebug.tcl
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.build.picodebugflags=-UUSE_TINYUSB -DNO_USB -DDISABLE_USB_SERIAL -I{runtime.platform.path}/tools/libpico
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.upload.maximum_data_size=245760
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.upload.tool=picodebug
+silicognition_rp2040_shim.menu.uploadmethod.picodebug.upload.tool.default=picodebug
+
 # -----------------------------------
 # Solder Party RP2040 Stamp
 # -----------------------------------
diff --git a/cores/rp2040/SerialUSB.cpp b/cores/rp2040/SerialUSB.cpp
index f0d6249..0c8cf15 100644
--- a/cores/rp2040/SerialUSB.cpp
+++ b/cores/rp2040/SerialUSB.cpp
@@ -130,7 +130,7 @@ size_t SerialUSB::write(const uint8_t *buf, size_t length) {
 
     static uint64_t last_avail_time;
     int written = 0;
-    if (tud_cdc_connected()) {
+    if (tud_cdc_connected() || _ignoreFlowControl) {
         for (size_t i = 0; i < length;) {
             int n = length - i;
             int avail = tud_cdc_write_available();
@@ -171,6 +171,9 @@ SerialUSB::operator bool() {
     return tud_cdc_connected();
 }
 
+void SerialUSB::ignoreFlowControl(bool ignore) {
+    _ignoreFlowControl = ignore;
+}
 
 static bool _dtr = false;
 static bool _rts = false;
diff --git a/cores/rp2040/SerialUSB.h b/cores/rp2040/SerialUSB.h
index 0e0b6bf..4471cea 100644
--- a/cores/rp2040/SerialUSB.h
+++ b/cores/rp2040/SerialUSB.h
@@ -44,6 +44,8 @@ public:
     using Print::write;
     operator bool() override;
 
+    void ignoreFlowControl(bool ignore = true);
+
     // ESP8266 compat
     void setDebugOutput(bool unused) {
         (void) unused;
@@ -51,6 +53,7 @@ public:
 
 private:
     bool _running = false;
+    bool _ignoreFlowControl = false;
 };
 
 extern SerialUSB Serial;
diff --git a/docs/serial.rst b/docs/serial.rst
index 77bb8c1..c650c30 100644
--- a/docs/serial.rst
+++ b/docs/serial.rst
@@ -45,3 +45,13 @@ For applications where an IRQ driven serial port is not appropriate, use
 
 For detailed information about the Serial ports, see the
 Arduino `Serial Reference <https://www.arduino.cc/reference/en/language/functions/communication/serial/>`_ .
+
+
+RP2040 Specific SerialUSB methods
+---------------------------------
+
+void Serial.ignoreFlowControl(bool ignore)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+In some cases, the target application will not assert the DTR virtual line, thus preventing writing operations to succeed.
+
+For this reason, the SerialUSB::ignoreFlowControl() method disables the connection's state verification, enabling the program to write on the port, even though the data might be lost.
diff --git a/package/package_pico_index.template.json b/package/package_pico_index.template.json
index 2938a0e..4bc5edc 100644
--- a/package/package_pico_index.template.json
+++ b/package/package_pico_index.template.json
@@ -152,6 +152,9 @@
                   {
                      "name": "Pimoroni Plasma2040"
                   },
+                  {
+                     "name": "Silicognition RP2040-Shim"
+                  },
                   {
                      "name": "Solder Party RP2040 Stamp"
                   },
diff --git a/tools/json/silicognition_rp2040_shim.json b/tools/json/silicognition_rp2040_shim.json
new file mode 100644
index 0000000..9e10912
--- /dev/null
+++ b/tools/json/silicognition_rp2040_shim.json
@@ -0,0 +1,56 @@
+{
+  "build": {
+    "arduino": {
+      "earlephilhower": {
+        "boot2_source": "boot2_generic_03h_4_padded_checksum.S",
+        "usb_vid": "0x1209",
+        "usb_pid": "0xF502"
+      }
+    },
+    "core": "earlephilhower",
+    "cpu": "cortex-m0plus",
+    "extra_flags": "-D ARDUINO_SILICOGNITION_RP2040_SHIM -DARDUINO_ARCH_RP2040 -DUSBD_MAX_POWER_MA=500",
+    "f_cpu": "133000000L",
+    "hwids": [
+      [
+        "0x2E8A",
+        "0x00C0"
+      ],
+      [
+        "0x1209",
+        "0xF502"
+      ]
+    ],
+    "mcu": "rp2040",
+    "variant": "silicognition_rp2040_shim"
+  },
+  "debug": {
+    "jlink_device": "RP2040_M0_0",
+    "openocd_target": "rp2040.cfg",
+    "svd_path": "rp2040.svd"
+  },
+  "frameworks": [
+    "arduino"
+  ],
+  "name": "RP2040-Shim",
+  "upload": {
+    "maximum_ram_size": 270336,
+    "maximum_size": 4194304,
+    "require_upload_port": true,
+    "native_usb": true,
+    "use_1200bps_touch": true,
+    "wait_for_upload_port": false,
+    "protocol": "picotool",
+    "protocols": [
+      "blackmagic",
+      "cmsis-dap",
+      "jlink",
+      "raspberrypi-swd",
+      "picotool",
+      "picoprobe",
+      "pico-debug"
+    ]
+  },
+  "url": "https://www.raspberrypi.org/products/raspberry-pi-pico/",
+  "vendor": "Silicognition"
+}
diff --git a/tools/makeboards.py b/tools/makeboards.py
index ff4dea0..15ee1bb 100755
--- a/tools/makeboards.py
+++ b/tools/makeboards.py
@@ -410,6 +410,9 @@ MakeBoard("nullbits_bit_c_pro", "nullbits", "Bit-C PRO", "0x2e8a", "0x6e61", 500
 MakeBoard("pimoroni_pga2040", "Pimoroni", "PGA2040", "0x2e8a", "0x1008", 250, "PIMORONI_PGA2040", 8, "boot2_w25q64jv_4_padded_checksum")
 MakeBoard("pimoroni_plasma2040", "Pimoroni", "Plasma2040", "0x2e8a", "0x100a", 500, "PIMORONI_PLASMA2040", 2, "boot2_w25q080_2_padded_checksum")
 
+# Silicognition
+MakeBoard("silicognition_rp2040_shim", "Silicognition", "RP2040-Shim", "0x1209", "0xf502", 500, "SILICOGNITION_RP2040_SHIM", 4, "boot2_generic_03h_4_padded_checksum")
+
 # Solder Party
 MakeBoard("solderparty_rp2040_stamp", "Solder Party", "RP2040 Stamp", "0x1209", "0xa182", 500, "SOLDERPARTY_RP2040_STAMP", 8, "boot2_generic_03h_4_padded_checksum")
 
diff --git a/variants/silicognition_rp2040_shim/pins_arduino.h b/variants/silicognition_rp2040_shim/pins_arduino.h
new file mode 100644
index 0000000..2c408b0
--- /dev/null
+++ b/variants/silicognition_rp2040_shim/pins_arduino.h
@@ -0,0 +1,81 @@
+#pragma once
+
+// Pin definitions taken from:
+//    https://silicognition.com/Products/rp2040-shim/
+
+// LEDs
+#define LED_BUILTIN    (22u)
+
+// NeoPixel
+#define PIN_NEOPIXEL   (23u)
+
+// Serial
+#define PIN_SERIAL1_TX (0u)
+#define PIN_SERIAL1_RX (1u)
+
+// Not pinned out
+#define PIN_SERIAL2_TX (31u)
+#define PIN_SERIAL2_RX (31u)
+
+
+// SPI0
+#define __SPI0_DEVICE  spi1
+#define PIN_SPI0_MISO  (12u)
+#define PIN_SPI0_MOSI  (11u)
+#define PIN_SPI0_SCK   (10u)
+#define PIN_SPI0_SS    (21u)
+
+// SPI1
+#define __SPI1_DEVICE  spi0
+#define PIN_SPI1_MISO  (20u)
+#define PIN_SPI1_MOSI  (19u)
+#define PIN_SPI1_SCK   (18u)
+#define PIN_SPI1_SS    (15u)
+
+// Wire
+#define __WIRE0_DEVICE i2c0
+#define PIN_WIRE0_SDA  (16u)
+#define PIN_WIRE0_SCL  (17u)
+#define __WIRE1_DEVICE i2c1
+#define PIN_WIRE1_SDA  (31u)
+#define PIN_WIRE1_SCL  (31u)
+
+#define SERIAL_HOWMANY (2u)
+#define SPI_HOWMANY    (2u)
+#define WIRE_HOWMANY   (1u)
+
+// Defines normally loaded from common.h
+// We have custom pin mapping to match Adafruit Feather
+
+#define PINS_COUNT          (30u)
+#define NUM_DIGITAL_PINS    (30u)
+#define NUM_ANALOG_INPUTS   (4u)
+#define NUM_ANALOG_OUTPUTS  (0u)
+#define ADC_RESOLUTION      (12u)
+
+static const uint8_t D0 = (1u);
+static const uint8_t D1 = (0u);
+static const uint8_t D4 = (6u);
+static const uint8_t D5 = (18u);
+static const uint8_t D6 = (19u);
+static const uint8_t D9 = (20u);
+static const uint8_t D10 = (21u);
+static const uint8_t D11 = (15u);
+static const uint8_t D12 = (14u);
+static const uint8_t D13 = (22u);
+static const uint8_t D24 = (24u);
+static const uint8_t D25 = (25u);
+
+static const uint8_t A0 = (29u);
+static const uint8_t A1 = (28u);
+static const uint8_t A2 = (27u);
+static const uint8_t A3 = (26u);
+
+static const uint8_t SS = PIN_SPI0_SS;
+static const uint8_t MOSI = PIN_SPI0_MOSI;
+static const uint8_t MISO = PIN_SPI0_MISO;
+static const uint8_t SCK = PIN_SPI0_SCK;
+
+static const uint8_t SDA = PIN_WIRE0_SDA;
+static const uint8_t SCL = PIN_WIRE0_SCL;
+