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Update README #8

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12 changes: 6 additions & 6 deletions README.md
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Expand Up @@ -14,12 +14,12 @@ This board offloads GPS and radio communication from the main flight controller,

## Hardware

- **MCU**: STM32G0B1CEU6 (Cortex-M0+, 128KB FLASH, 144KB RAM)
- **Clock**: 16 MHz HSI (no PLL, low power configuration)
- **MCU**: STM32G0B1CEU6 (Cortex-M0+, 128KB FLASH allocated / 512KB available, 144KB RAM)
- **Clock**: 64 MHz (16 MHz HSI with PLL)
- **Peripherals**:
- SPI1 (slave mode) - Communication with flight controller
- USART5 (57600 baud) - Radio transceiver interface
- USART6 (115200 baud) - GPS module interface
- USART6 (9600 baud) - GPS module interface
- USART1 (115200 baud) - Debug console (ST-Link)
- DMA1 (6 channels) - High-throughput peripheral data transfer
- GPIO PB2 - IRQ output for push mode signaling
Expand Down Expand Up @@ -47,7 +47,7 @@ This board offloads GPS and radio communication from the main flight controller,
- **Parsing**: lwgps library (NMEA 0183 standard)
- **Supported sentences**: GPGGA, GPRMC, GPGSA, GPGSV (+ GLONASS variants)
- **Dual queue system**:
- Raw NMEA queue: 10 samples × 87 bytes (pull mode)
- Raw NMEA double-buffer: 2 slots × 87 bytes (pull mode, latest sample only)
- Parsed fix queue: 10 fixes × 48 bytes (push mode)
- **Output formats**:
- Pull mode: Raw NMEA sentences (up to 87 bytes)
Expand Down Expand Up @@ -85,7 +85,7 @@ USART1 serves dual purpose when compiled with DEBUG macro:
## Build System

### Prerequisites
- CMake 3.16+
- CMake 3.22+
- Ninja build system
- arm-none-eabi-gcc toolchain
- Git (for lwgps submodule)
Expand Down Expand Up @@ -502,7 +502,7 @@ GPS update rate and constellation selection can be configured via the configurat
**Solution**: Master must send 8-byte configuration frame on startup

**Problem**: GPS not parsing NMEA sentences
**Solution**: Check USART6 baud rate (should be 115200), verify GPS module TX connection
**Solution**: Check USART6 baud rate (should be 9600), verify GPS module TX connection

**Problem**: Radio messages not received
**Solution**: Verify USART5 baud rate (57600), check radio module UART connection
Expand Down