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Change of SPI Baud Rate in Renesas RL78
The transfer clock frequency for 3-wire serial I communication can be calculated by the following expressions.(1) For Master(Transfer clock frequency) = {Operation clock (fMCK) frequency of target channel} ÷ (SDRmn[15:9] + 1) ÷ 2 [Hz](2) For Slave(Transfer clock frequency) = {Frequency of serial cloRead more
The transfer clock frequency for 3-wire serial I communication can be calculated by the following expressions.
(1) For Master
(Transfer clock frequency) = {Operation clock (fMCK) frequency of target channel} ÷ (SDRmn[15:9] + 1) ÷ 2 [Hz]
(2) For Slave
(Transfer clock frequency) = {Frequency of serial clock (fSCK) supplied by master}Note [Hz]
Note :The permissible maximum transfer clock frequency is fMCK/6.
Remark :The value of SDRmn[15:9] is the value of bits 15 to 9 of serial data register (SDRmn) (0000000B to 1111111B) and therefore is 0 to 127. The operation clock (fMCK) is determined by serial clock select register m (SPSm) and bit 15 (CKSmn) of serial mode register mn (SMRmn).
MCU getting RESET
There are many internal reset generation sources existing in the RL78/F13 and RL78/F14. The reset control flag register (RESF) is used to store which source has generated the reset request. please find attached image for Format of Reset Control Flag Register (RESF).
There are many internal reset generation sources existing in the RL78/F13 and RL78/F14. The reset control flag register (RESF) is used to store which source has generated the reset request.
please find attached image for Format of Reset Control Flag Register (RESF).
See lessRenesas IDE CS+
Hello Rutuja, Renesas flash programmer is totally free. And CS+ IDE evaluation version is free for 60 days. If code size exceeded 64 Kb(for RL78) and 256KB (for RH850)then you have to purchase complier license.
Hello Rutuja,
Renesas flash programmer is totally free.
See lessAnd CS+ IDE evaluation version is free for 60 days. If code size exceeded 64 Kb(for RL78) and 256KB (for RH850)then you have to purchase complier license.
RAM initialization in Renesas RH850 F1x
;----------------------------------------------------------------------------- ;hdwinit ; Specify RAM addresses suitable to your system if needed. ;----------------------------------------------------------------------------- LOCAL_RAM_ADDR .set 0xFEBE0000 ; for MCU : R7f701684 LOCAL_RAM_END .set 0xRead more
;—————————————————————————–
See less;hdwinit
; Specify RAM addresses suitable to your system if needed.
;—————————————————————————–
LOCAL_RAM_ADDR .set 0xFEBE0000 ; for MCU : R7f701684
LOCAL_RAM_END .set 0xFEBF7FFF ; for MCU : R7f701684
RETENTION_RAM_ADDR .set 0xFEBF8000 ; for MCU : R7f701684/R7f701690 ; 0xFEBE0000
RETENTION_RAM_END .set 0xFEBFFFFF ; for MCU : R7f701684/R7f701690 ; 0xFEBF7FFF