On Wednesday 16 November 2016 06:34 PM, Pitchumani wrote:
URL: <http://savannah.nongnu.org/patch/?9163>Summary: New eeprom write block function for xmega Project: AVR C Runtime Library Submitted by: pitchumani Submitted on: Wed 16 Nov 2016 01:04:34 PM GMT Category: None Priority: 7 - High Status: Ready For Test Privacy: Public Assigned to: pitchumani Originator Email: Open/Closed: Open Discussion Lock: Any _______________________________________________________ Details: Xmega's eeprom shall be programmed byte and page-wise. Current eeprom write block function loads one byte to eeprom at a time. Though it uses page_erase_and_write command, it doesn't write page-wise. Attached patch adds new eeprom_write_block function for xmega (written in C) that loads eeprom with maximum of E2PAGESIZE at a time. This patch also adds a function named ccp_write_io to write into CCProtected (CCP) IO registers. Tested the function with ATxmega128A1 explained board. Seems to work fine. I tried comparing the cycle count only with simulator. New function shows better results for writing more than 2 bytes.
Any comments/ suggestions? Regards, Pitchumani _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-libc-dev
