60 lines
1.7 KiB
Bash
Executable File
60 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# Step: Confirm CH341A programmer is connected to USB
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# CH341A USB vendor:product ID
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CH341A_USB_ID="1a86:5512"
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step_attach_ch341a() {
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section "Connect CH341A Programmer"
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info "Before continuing:"
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echo " 1. Plug the CH341A into a USB port"
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echo " 2. Set the voltage jumper to 3.3V (NEVER 5V)"
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echo " 3. Leave the SOIC-8 clip UNATTACHED for now"
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echo ""
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warn "Using 5V WILL permanently damage the BIOS chips on the T440p."
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echo ""
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info "Clip orientation rules (applies later when reading/writing chips):"
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echo " - The red wire on the ribbon = pin 1"
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echo " - The dot/notch on the EEPROM chip = pin 1"
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echo " - These MUST align, or the chip will be misread or damaged"
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echo ""
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# Show reference image (cached locally, rendered inline if possible)
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show_image "spi_flasher_assembly.webp" "Reference: CH341A + SOIC-8 clip assembly"
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echo ""
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prompt_continue
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info "Checking USB for CH341A (id $CH341A_USB_ID)..."
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if ! check_command lsusb; then
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warn "lsusb not found. Install usbutils to enable programmer detection."
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if prompt_yes_default "Continue without USB verification?"; then
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return 0
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fi
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return 1
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fi
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if lsusb | grep -qi "$CH341A_USB_ID"; then
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success "CH341A detected on USB bus."
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return 0
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fi
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error "CH341A not found on USB bus."
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echo ""
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echo " Troubleshooting:"
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echo " - Re-plug the programmer (try a different USB port)"
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echo " - Check with: lsusb | grep $CH341A_USB_ID"
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echo " - If lsusb sees it under a different ID, the device may be"
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echo " a clone with different firmware — note the ID and retry"
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echo ""
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if prompt_yes_no "Retry detection?"; then
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step_attach_ch341a
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return $?
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fi
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return 1
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}
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