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6 Bootload Communication Protocol: 8-bit
6.7 Read Config

Enables the bootloader to read the Configuration Words out of the chip’s memory.

1 MCC Melody Bootloader: 8-bit
2 User Interface
3 Unified Bootloader Host Application (UBHA)
4 Use Case Examples
5 Verification Schemes
This section discusses various methods to verify the application provided to the users by the bootloader module.
6 Bootload Communication Protocol: 8-bit
- 6.1 Read Version
  
  Enables the bootloader to read the version information from the configuration bits of the device.
- 6.2 Read Flash
  
  Enables the bootloader to interface with various memory drivers used by 8-bit PIC and 8-bit AVR chips.
- 6.3 Write Flash
  
  Enables the bootloader to write data to specified address locations.
- 6.4 Erase Flash
  
  Enables the bootloader to initiate erase commands to the memory driver.
- 6.5 Read EE Data
  
  Enables the bootloader to read bytes out from the EEPROM memory.
- 6.6 Write EE Data
  
  Enables the bootloader to write some number of bytes to the EEPROM memory.
- 6.7 Read Config
  
  Enables the bootloader to read the Configuration Words out of the chip’s memory.
- 6.8 Write Config
  
  Enables the bootloader to write to the Configuration Word range of memory.
- 6.9 Calculate Checksum
  
  Enables the bootloader to calculate and return a checksum value over a given range of memory addresses.
- 6.10 Reset Device
  
  Enables the bootloader to initiate the device’s software Reset cycle.
7 References
Microchip Information

6.7 Read Config

Enables the bootloader to read the Configuration Words out of the chip’s memory.

Summary

Configuration Words are a vital part to the health and operation of an embedded system. The Oscillator Selection bits, Watchdog Timer (WDT), Power-up Timer (PWRT) and Code Protection bit are examples of configuration settings that can be set through the bits of a Configuration Word. To use or manipulate these configurations, the user must be able to read them out of memory.