Boot ROM Boot loader versions

The LPC81x boot loader may be updated for a new chip version. You can determine the boot loader version using the ISP command Read Boot code version (see ISP-IAP API Read Boot code version number ISP) or from the part marking.

Table 1. Boot ROM Boot loader versions
Boot loader version Marking API Description
v13.1 (initial version) 1A ISP/IAP

The following deviations from the specification apply:

    UART

The following deviations from the specification apply:

  • UART synchronous mode not supported.
  • API functions uart_put_line and uart_get_line do not return an interrupt on error. See UART API uart_get_line and UART API uart_put_line.
  • UART API return codes are numbered 0x0007 0001 to 0x0007 0005.
    I2C No changes.
    Power profiles No changes.
v13.2 2A ISP/IAP

The following updates compared to v13.1 apply:

    UART

The following updates compared to v13.1 apply:

    I2C No changes.
    Power profiles No changes.
v13.4 4C ISP/IAP The following update compared to v13.2 applies: ISP entry pin moved to PIO0_12 on TSSOP, XSON, and SOP packages. Boot loader updated to accommodate for the new ISP entry pin location.
Note: On the DIP8 package, the ISP entry pin location remains at pin PIO0_1. See Boot ROM Pin location in ISP mode.
    UART No changes.
    I2C No changes.
    Power profiles No changes.

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