TI E2E Community
Hercules™ Safety Microcontrollers
Hercules™ Safety Microcontrollers Forum
F05 Flash API timing parameter question
I'm writing a bootloader program for TMS470R1B768, using F05 Flash API to erase and program flash.
After reading SPNU257, I am a little confused about the "Flash Delay Parameter Values".
In the user's specification, a table is provided to determine the Flash Delay Parameter based on "Frequency". My question is what is this frequency, is it SYSCLK or ICLK or something else?
If this is the SYSCLK, is it right that the F05 Flash API support a maximum frequency of 24MHz. Can I erase or program under a higher SYSCLK frequency (like 48MHz).
Thanks in advance.
Please be aware that the TMS470R1 Series (including the TMS470R1B768 device) is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers. Please see the full 'NRDN' notice here.
Soon TI will be launching the new TMS470M series of
microcontrollers. This series will feature greater ARM CPU performance
and a similar peripherial set to the TMS470R1 Series of
microcontrollers. Please come back soon for more information about the
TMS470M Series of microcontrollers. The product preview for the first
two microcontrollers in the TMS470M series is available here: TMS470MF0660x - SPNS157.
Now to your question. This parameter is based off of the System Frequency. The max System Frequency for Flash operations is 24MHz and must be in non-pipelined mode.
MCU Safety & Security Software
If my reply answers your question please click on the green button "Verify Answer"
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.