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programming-the-rl78-flash-memory-using-an-external device.pdf

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programming-the-rl78-flash-memory-using-an-external-device.pdf
RL78 Blog: Programming the RL78 flash
memory using an external device

John Donovan 2012-8-18

Almost any embedded development project requires storing your code in the
MCU’s flash memory. There are two ways to program the flash memory in an
RL78 using an external device:



Writing to flash using a flash memory programmer
Writing to flash using an external device that incorporates a UART




The RL78 incorporates firmware that controls flash memory programming, which in turn
involves exchanging commands with the MCU via serial communication, for which the RL78
provides both single-wire and two-wire UART connections.



Using the single-wire UART



In an earlier RL78 blog post Maury introduced the PG-FP5 dedicated flash memory
programming tool. The PG-FP5 talks to the RL78 usi……
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