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T89C51CC02 Datasheet(PDF) 11 Page - ATMEL Corporation |
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T89C51CC02 Datasheet(HTML) 11 Page - ATMEL Corporation |
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11 / 29 page  11 4223C–CAN–03/08 T89C51CC02 UART Bootloader Programming the Flash or EEPROM Data The flow described below shows how to program data in the Flash memory or in the EEPROM data memory. The bootloader programs on a page of 128 bytes basis when it is possible. The host must take care that: • The data to program transmitted within a frame are in the same page. Requests from Host Answers from Bootloader The boot loader answers with: • ‘.’ & ‘CR’ & ’LF’ when the data are programmed • ‘X’ & ‘CR’ & ‘LF’ if the checksum is wrong • ‘P’ & ‘CR’ & ‘LF’ if the Security is set Flow Description Example Command Name Record type Load Offset Record length Data[0] ... Data[127] Program Flash 00h start address nb of Data x ... x Program EEPROM Data 07h start address nb of Data x ... x Host Bootloader Write Command ’X’ & CR & LF NO_SECURITY Wait Write Command Checksum Error Wait Programming Send Security error Send COMMAND_OK Send Write Command Wait Checksum Error Wait COMMAND_OK Wait Security Error OR COMMAND ABORTED COMMAND FINISHED Send Checksum error COMMAND ABORTED ’P’ & CR & LF OR ’.’ & CR & LF HOST : 01 0010 00 55 9A BOOTLOADER : 01 0010 00 55 9A . CR LF Programming Data (write 55h at address 0010h in the Flash) |
Similar Part No. - T89C51CC02_10 |
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Similar Description - T89C51CC02_10 |
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