SLAU131V October 2004 – February 2020
12.13.6 TI-TXT Hex Format (--ti_txt Option)
The TI-TXT hex format supports 8-bit hexadecimal data. It consists of section start addresses, data byte, and an end-of-file character. These restrictions apply:
- The number of sections is unlimited.
- Each hexadecimal start address must be even.
- Each line must have 8 data bytes, except the last line of a section.
- Data bytes are separated by a single space.
- The end-of-file termination tag q is mandatory.
Because the TI-TXT format supports only an 8-bit physical memory width and an 8-bit ROM width, the ROMS directive needs to have the origin and length specifications doubled when moving from a 16-bit format to an 8-bit format. If you receive a warning like the following, check the ROMS directive.
warning: section file.out(.data) at 07e000000h falls in unconfigured memory
For example, suppose the ROMS directive for a format that uses 16-bit ROM widths, such as ASCII-Hex with the --romwidth=16 option used, is as follows:
/* Memory counted as 16-bit words */
ROMS
{
FLASH: origin=0x3f000000, length=0x1000
}
You would double the address and length in the ROMS directive when using an 8-bit ROM width:
/* Memory counted as 8-bit bytes */
ROMS
{
FLASH: origin=0x7e000000, length=0x2000
}
The data record contains the following information:
| Item | Description |
|---|---|
| @ADDR | Hexadecimal start address of a section |
| DATAn | Hexadecimal data byte |
| q | End-of-file termination character |
