diff --git a/README.md b/README.md index 847977a..7667469 100644 --- a/README.md +++ b/README.md @@ -8,7 +8,9 @@ It enumerates as a standard serial device (e.g., /dev/ttyACM0 or COMx). PCB [here](https://git.ayau.me/mira/mhardware/src/branch/master/hp3478a-ch32-ext) -![PCB](./img/IMG_20251130_023748.jpg) +More photos in [img/](./img/) + + ## Menu System @@ -42,6 +44,7 @@ HP3478A Internal USB-GPIB 1.2.0 ++eor <0-7> Read Stop: 0:CRLF ... 7:EOI-Only ++eot_enable Append extra char to read output ++eot_char The char to append + ++dmm_loop <0|1> Toggle HP3478A loop, if it conflicts w/ GPIB bus [System Configuration] ++config List all configurable parameters @@ -131,7 +134,6 @@ Now your dBm feature will use 600 ohm ref instead of 50. ## Known Issues -1. I did NOT use the brain when routing the USBLC6. Either have to DNP the IC and jumper the data lines, or rely on the software hack to check USB `SUSPEND` to guess if the host is connected. I do the latter, works but meh. +1. I did NOT use the brain when routing the USBLC6. Either have to DNP the IC and jumper the data lines, or rely on the software hack to check USB `SUSPEND` to guess if the host is connected. I do the latter, works but meh. VBUS detection would be nicer. 2. The buzzer is **not on a hardware TIM pin**. It's on a generic GPIO... This means it can't be hardware/timer PWMed. Instead, the firmware is firing a TIM IRQ thousands of times a second just to manually toggle the pin in the ISR.. 3. There is a microSD card footprint on the board. The fw does absolutely nothing with it. Data logging? -4. The feature logic is a massive `switch`.. no VTable, no function pointer structs, it's quite messy diff --git a/img/ch32v203.jpg b/img/ch32v203.jpg new file mode 100644 index 0000000..648f74b Binary files /dev/null and b/img/ch32v203.jpg differ diff --git a/img/connection_gpib.jpg b/img/connection_gpib.jpg new file mode 100644 index 0000000..416a394 Binary files /dev/null and b/img/connection_gpib.jpg differ diff --git a/img/IMG_20251130_023748.jpg b/img/connection_pcb.jpg similarity index 100% rename from img/IMG_20251130_023748.jpg rename to img/connection_pcb.jpg diff --git a/img/feats.mp4 b/img/feats.mp4 new file mode 100644 index 0000000..533013a Binary files /dev/null and b/img/feats.mp4 differ diff --git a/img/usb_b.jpg b/img/usb_b.jpg new file mode 100644 index 0000000..907dfc1 Binary files /dev/null and b/img/usb_b.jpg differ