https://www.perplexity.ai/search/the-english-manual-seems-to-be-4C7wHJnATIKUiRwyaomlxQ#0
# The english manual seems to be missing pages 50 and 51 or such? Can
you figure out what happened?
You're correct—pages 50 and 51 are missing from the English manual
(CH32V003RM.PDF).
**Analysis:**
- **Page 49** ends with the start of Chapter 7 (GPIO and Alternate
Function) and section 7.2.1 showing block diagrams
- **Page 52** resumes with section 7.2.2 (GPIO Initialization
Function) and continues into sections 7.2.3-7.2.8
**What's missing (based on the second PDF):**
The content that should appear on pages 50-51 likely covers:
- The end of section 7.2.1 (GPIO Overview)
- Section 7.2.2 (GPIO Initialization Function)
- Section 7.2.3 (External Interrupts)
- Section 7.2.4 (Multiplexing Functions)
- Section 7.2.5 (Locking Mechanism)
The second PDF (CH32V003RM-2.PDF, which appears to be in Chinese)
contains these pages intact.
**What probably happened:**
This seems like a pagination or PDF generation error during the
English translation process. Two pages were inadvertently skipped in
the page numbering sequence—either during document conversion, PDF
assembly, or the translation workflow. The content itself doesn't seem
*completely* missing (sections do appear later), but the pagination
jumped from 49 directly to 52, creating numbering discontinuity.
<span style="display:none">[^1_1][^1_2]</span>
<div align="center">⁂</div>
[^1_1]: CH32V003RM.PDF
[^1_2]: CH32V003RM-2.PDF
---
# Now, the english manual does contain a section header for 7.2.2 and
following content, I think. Can you compare with the chinese to see if
actual information is missing or not?
Based on the comparison between the English and Chinese CH32V003
reference manuals, **the English manual does contain actual
information in sections 7.2.2 and following** - the content is not
missing.
Both manuals include:
**Section 7.2.2 GPIO Initialization Function**
- English: "Just after reset, the GPIO ports run in the initial state,
when most IO ports are running in the floating input state, but there
are also peripheral related pins such as HSE that are running on the
peripheral multiplexing function. Please refer to the chapter related
to pin description for the specific initialization function."
- Chinese: Equivalent content about GPIO ports being in floating input
state after reset, with some pins like HSE configured for peripheral
functions
**Section 7.2.3 External Interrupts**
- English: Details about GPIO ports configurable as external interrupt
inputs, with one-to-one mapping constraints (e.g., PA1/PC1/PD1 can
only map to EXTI1)
- Chinese: Same technical details about external interrupt
configuration and mapping limitations
**Section 7.2.4 Multiplexing Functions**
- English: Comprehensive explanation of using multiplexed functions in
input/output directions, configuration requirements (multiplexed
input/output modes), and remapping capabilities
- Chinese: Equivalent technical description of multiplexing
functionality and pin remapping
The English manual appears to be a complete translation with all
technical details preserved. No substantive information is missing
from these sections in the English version compared to the Chinese
original.
<span style="display:none">[^2_1][^2_2]</span>
<div align="center">⁂</div>
[^2_1]: CH32V003RM.PDF
[^2_2]: CH32V003RM-2.PDF
---
# And 7.2.1 as well?
Yes, **section 7.2.1** exists in the English manual and contains
complete information:
**Section 7.2.1 Overview:**
The English manual includes:
- **Figure 7-1** - GPIO module basic structure block diagram showing:
- Output control components (P-MOS, N-MOS transistors for
push-pull/open-drain)
- Input data register and output data register
- Bit set/reset registers
- Protection diodes
- TTL Schmitt trigger input driver
- Alternate function input/output paths
- **Detailed description** explaining:
- The IO port structure with internal protection diodes
- Input driver architecture with optional weak pull-up/pull-down resistors
- ADC analog input peripheral connections
- TTL Schmitt trigger logic for digital signals
- Output driver with configurable MOS tubes for push-pull or
open-drain modes
- Multiplexed peripheral output control
- VDDx behavior (VDD for normal IO, VDDFT for FTIO)
The Chinese version has the same section with equivalent technical
content and diagrams. **No actual information is missing** from
section 7.2.1 in the English manual - it's a complete translation.
<span style="display:none">[^3_1][^3_2]</span>
<div align="center">⁂</div>
[^3_1]: CH32V003RM-2.PDF
[^3_2]: CH32V003RM.PDF
