diff --git a/embedded_programming/index.html b/embedded_programming/index.html
index 09c4e674782f0517e61fc17e4d2ec75cccbd479d..99410129b073dc4f23ff65d3d0f634353750a42c 100644
--- a/embedded_programming/index.html
+++ b/embedded_programming/index.html
@@ -365,7 +365,7 @@
       <a href=echo.html>bit-bang</a> <a href=hello.ftdi.45.echo.c>echo.c</a> <a href=hello.ftdi.45.echo.make>echo.make</a> <a href=hello.ftdi.45.echo.ino>echo.ino</a> <a href=hello.ftdi.45.echo.serial.ino>echo.serial.ino</a> <a href=hello.ftdi.45.echo.mp4>video</a>
 
 <b><a href=t1614/ATtiny1614-DataSheet-DS40001995B.pdf>ATtiny1614</a> <a href=t1624/ATtiny1624-26-27-DataSheet-DS40002234A.pdf>ATtiny1624</a></b>
-   hello.t1624-XU <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_pro>pro</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_sch>sch</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_pcb>pcb</a> board <a href=t1624/hello.t1624-XU/hello.t1624-XU.jpg>components</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.top.png>traces</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.interior.png>interior</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.blink.ino>blink</a>
+   hello.t1624-XU <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_pro>pro</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_sch>sch</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.kicad_pcb>pcb</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.png>board</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.jpg>components</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.top.png>traces</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.interior.png>interior</a> <a href=t1624/hello.t1624-XU/hello.t1624-XU.blink.ino>blink</a>
    <a href=t1614/hello.t1614.echo>t1614-echo</a> <a href=t1614/hello.t1614.echo.png>board</a> <a href=t1614/hello.t1614.echo.jpg>components</a> <a href=t1614/hello.t1614.echo.traces.png>traces</a> <a href=t1614/hello.t1614.echo.traces_exterior.png>traces+exterior</a> <a href=t1614/hello.t1614.echo.interior.png>interior</a>
       <a href=t1614/hello.t1614.echo.ino>echo.ino</a> <a href=t1614/hello.t1614.echo.mp4>video</a>
 
@@ -378,7 +378,7 @@
       <a href=hello.ftdi.44.echo.asm>echo.asm</a> <a href=hello.ftdi.44.echo.asm.make>echo.asm.make</a>
 
 <b><a href=t3216/ATtiny3216_ATtiny1616-data-sheet-40001997B.pdf>ATtiny3216</a> <a href=t3226/ATtiny3224-3226-3227-Data-Sheet-DS40002345A.pdf>ATtiny3226</a></b>
-   hello.t3226-MU <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_pro>pro</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_sch>sch</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_pcb>pcb</a> board <a href=t3226/hello.t3226-MU/hello.t3226-MU.jpg>components</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.top.png>traces</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.interior.png>interior</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.blink.ino>blink</a>
+   hello.t3226-MU <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_pro>pro</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_sch>sch</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.kicad_pcb>pcb</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.png>board</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.jpg>components</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.top.png>traces</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.interior.png>interior</a> <a href=t3226/hello.t3226-MU/hello.t3226-MU.blink.ino>blink</a>
    <a href=t3216/hello.t3216.echo>t3216-echo</a> <a href=t3216/hello.t3216.echo.png>board</a> <a href=t3216/hello.t3216.echo.jpg>components</a> <a href=t3216/hello.t3216.echo.traces.png>traces</a> <a href=t3216/hello.t3216.echo.traces_exterior.png>traces+exterior</a> <a href=t3216/hello.t3216.echo.interior.png>interior</a>
       <a href=t3216/hello.t3216.echo.ino>echo.ino</a> <a href=t3216/hello.t3216.echo.mp4>video</a>
 
diff --git a/embedded_programming/t1624/hello.t1624-XU/fp-info-cache b/embedded_programming/t1624/hello.t1624-XU/fp-info-cache
new file mode 100644
index 0000000000000000000000000000000000000000..573541ac9702dd3969c9bc859d2b91ec1f7e6e56
--- /dev/null
+++ b/embedded_programming/t1624/hello.t1624-XU/fp-info-cache
@@ -0,0 +1 @@
+0
diff --git a/embedded_programming/t1624/hello.t1624-XU/hello.t1624-XU-backups/hello.t1624-XU-2025-06-15_204338.zip b/embedded_programming/t1624/hello.t1624-XU/hello.t1624-XU-backups/hello.t1624-XU-2025-06-15_204338.zip
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diff --git a/embedded_programming/t1624/hello.t1624-XU/hello.t1624-XU.png b/embedded_programming/t1624/hello.t1624-XU/hello.t1624-XU.png
new file mode 100644
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diff --git a/embedded_programming/t3226/hello.t3226-MU/fp-info-cache b/embedded_programming/t3226/hello.t3226-MU/fp-info-cache
new file mode 100644
index 0000000000000000000000000000000000000000..573541ac9702dd3969c9bc859d2b91ec1f7e6e56
--- /dev/null
+++ b/embedded_programming/t3226/hello.t3226-MU/fp-info-cache
@@ -0,0 +1 @@
+0
diff --git a/embedded_programming/t3226/hello.t3226-MU/hello.t3226-MU-backups/hello.t3226-MU-2025-06-15_204503.zip b/embedded_programming/t3226/hello.t3226-MU/hello.t3226-MU-backups/hello.t3226-MU-2025-06-15_204503.zip
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diff --git a/embedded_programming/t3226/hello.t3226-MU/hello.t3226-MU.png b/embedded_programming/t3226/hello.t3226-MU/hello.t3226-MU.png
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