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Renesas is a Japanese semiconductor manufacturer headquartered in Tokyo, Japan.

The brand Renesas is a contraction of “Renaissance Semiconductor for Advanced Solutions”, initially incorporated in 2002 as Renesas Technology, the consolidated entity of the semiconductor units of Hitachi and Mitsubishi excluding their dynamic random-access memory businesses.

It basically deals in automotive semiconductors and microcontrollers.

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vikas Nagpal
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vikas Nagpal
Asked: September 29, 2022In:
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Using different baud rates for 2 different serial ports – RA6M3

Hello, I’m using the RA6M3 regulator in one of the applications where I need 2 UARTS. uart0 and uart1. In the configurator, I’ve configured uart0 for 115200 buad and uart1 for 9600 buad ( as that’s what I need to communicate ...Read more

Hello,

I’m using the RA6M3 regulator in one of the applications where I need 2 UARTS. uart0 and uart1. In the configurator, I’ve configured uart0 for 115200 buad and uart1 for 9600 buad ( as that’s what I need to communicate to my peripherals). But ever these 2 different baud rates don’t work together. Seems I can configure both at 115200 or both at 9600 and also both would work( I tried checking it on teraterm).
Is there any way to configure 2 different devices uart0 and uart1 to different baud rates? Any suggestion in this direction would help me.

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baudmcura6m3renesasRenesas Microcontrolleruarts
nidhi singh
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nidhi singh
Asked: September 26, 2022In:
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RA6T2 Internal Flash?

Hi, I am curious about what kind of the internal flash of RA6T2 is? Is it NOR flash or NAND flash? According to the program and erase size, it seems to be NOR flash? still, what’s the physical interface of the flash? ...Read more

Hi,

I am curious about what kind of the internal flash of RA6T2 is? Is it NOR flash or NAND flash?
According to the program and erase size, it seems to be NOR flash?

still, what’s the physical interface of the flash? Does it use the SPI or other?
If it was NOR flash.Thanks

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flashinternalnorra6t2renesasRenesas Microcontrollerspi
nidhi singh
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nidhi singh
Asked: September 22, 2022In:
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RA4M1, SPI with DMA?

Hi, I search for a small example for SPI Master and DMA transfer. So that I can receive e.g. 15 bytes with DMA and get a transfer end to intrude/ message when it’s finished. Thanks in advance!

Hi,

I search for a small example for SPI Master and DMA transfer.
So that I can receive e.g. 15 bytes with DMA and get a transfer end to intrude/ message when it’s finished.

Thanks in advance!

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dmara4m1renesasRenesas Microcontrollerspi
  1. vikas Nagpal

    FSP4.0 supports DTC and DMAC transfer interface in the driver Add ther_spi driver to your design Add the DMAC transfer driver to the stack

    FSP4.0 supports DTC and DMAC transfer interface in the driver

    Add ther_spi driver to your design

    Add the DMAC transfer driver to the stack

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nidhi singh
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nidhi singh
Asked: September 16, 2022In:
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I defined a design with secure zone and non secure zone for RA6M5. I active ethernet driver in non secure zone with DHCP enable. Whent theR_ETHER_Write is called andp_reg_edmac-> EDTRR = ETHER_EDMAC_EDTRR_TRANSMIT_REQUEST; edmac started a malformed packet is send see ...Read more

I defined a design with secure zone and non secure zone for RA6M5. I active ethernet driver in non secure zone with DHCP enable.
Whent theR_ETHER_Write is called andp_reg_edmac-> EDTRR = ETHER_EDMAC_EDTRR_TRANSMIT_REQUEST; edmac started a malformed packet is send see wireshark trace under.

“Set trust zone boundaries” parameter is” yes” in debugger configuration.
Can you help me.

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ethernetra6m5renesasRenesas Microcontroller
  1. Best Answer
    vikas Nagpal

    How's this issue now? Were you suitable to fix it already? If not yet, maybe you'd like to share your design then so that the members in this forum can see what is causing the issue. Also, there is a question in Wireshark about Malformed Packet BOOTP/ DHCP too, and the issue disappeared when he updaRead more

    How’s this issue now? Were you suitable to fix it already? If not yet, maybe you’d like to share your design then so that the members in this forum can see what is causing the issue. Also, there is a question in Wireshark about Malformed Packet BOOTP/ DHCP too, and the issue disappeared when he updated to a newer version of Wireshark. It might help.

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nidhi singh
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nidhi singh
Asked: September 14, 2022In:
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Hello, I’m using RA2L1 and E2 Studio. I want to use UART without interrupt. How can i read and transmit datas?

Hello,

I’m using RA2L1 and E2 Studio. I want to use UART without interrupt. How can i read and transmit datas?

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e2 studiointerruptra2l1renesasuart
  1. ashishgawade

    It's possible, but you won't be suitable to use the Read and Write API as handed. You'll have to produce your own which will poll the flags of the SCI SSR( Serial Communications Interface Serial Status Register) You would have to pend on the RDRF for data reception, and TDRE( & potentially TEND)Read more

    It’s possible, but you won’t be suitable to use the Read and Write API as handed. You’ll have to produce your own which will poll the flags of the SCI SSR( Serial Communications Interface Serial Status Register)

    You would have to pend on the RDRF for data reception, and TDRE( & potentially TEND) for data transmission.

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nidhi singh
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nidhi singh
Asked: September 9, 2022In:
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Hi, I’m using Renesas RA6M2 MCU. I’m facing following problems related to internal RTC.1. After RTC set at morning 9 am and device put in off state. At 6 pm when we going to check RTC it shows 1 hr ...Read more

Hi,

I’m using Renesas RA6M2 MCU. I’m facing following problems related to internal RTC.
1. After RTC set at morning 9 am and device put in off state. At 6 pm when we going to check RTC it shows 1 hr delay.
2. Is it need to call RTC open api at every power ON?
3. I’m using FSP3.7. In that clock source not set in rtc open api. For break this issue, I set RTC clock source after rtc open api. But After callingR_RTC_ClockSourceSet( &g_rtc_ctrl) api, I observedR_RTC->RCR2_b. launch bit is 0. In this case RTC not running.

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mcura6m2renesasRenesas Microcontrollerrtc
  1. vikas Nagpal

    1. RTC time lag not exactly 1 hr. Some times it was 45 min ,15 min in 9hrs. Time lag mostly occurs in OFF state(Battery is connected). 2. In case of warm start or a hard reset (when VBATT powers RTC in case of power loss), is it need reinitialize RTC clock source? 3. When VBATT powers RTC in case ofRead more

    1. RTC time lag not exactly 1 hr. Some times it was 45 min ,15 min in 9hrs. Time lag mostly occurs in OFF state(Battery is connected).

    2. In case of warm start or a hard reset (when VBATT powers RTC in case of power loss), is it need reinitialize RTC clock source?

    3. When VBATT powers RTC in case of power loss then what is the initialization sequence of RTC after warm start or a hard reset.

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nidhi singh
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nidhi singh
Asked: September 6, 2022In:
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I want to work a 1 Hz waveform from the RTCOUT pin( P407). I’ve successfully configured the pin, but can not feel to get an work on P407. Are there certain way that I’ve to follow to get this working?

I want to work a 1 Hz waveform from the RTCOUT pin( P407). I’ve successfully configured the pin, but can not feel to get an work on P407. Are there certain way that I’ve to follow to get this working?
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fspr7fa4m1ab3cfmrenesasrtcout
  1. vikas Nagpal

    Assuming that you have enabled the RTCOUT pin in the pin configuration, add this line of code to your project. R_RTC->RCR2_b.RTCOE = 1; For example: void hal_entry(void) { /* TODO: add your own code here */ fsp_err_t err; err = R_RTC_Open(&g_rtc0_ctrl, &g_rtc0_cfg); if( FSP_SUCCESS != errRead more

    Assuming that you have enabled the RTCOUT pin in the pin configuration, add this line of code to your project.

    R_RTC->RCR2_b.RTCOE = 1;

    For example:

    void hal_entry(void)
    {
    /* TODO: add your own code here */
    fsp_err_t err;

    err = R_RTC_Open(&g_rtc0_ctrl, &g_rtc0_cfg);
    if( FSP_SUCCESS != err )
    {
    __BKPT(1);
    }

    err = R_RTC_CalendarTimeSet(&g_rtc0_ctrl, &sys_time);
    if( FSP_SUCCESS != err )
    {
    __BKPT(1);
    }

    R_RTC->RCR2_b.RTCOE = 1;

    while(1);

    }

    Would have thought that an API may exist for this, or would be enabled by default when you enable the pin in the pin config.

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vikas Nagpal
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vikas Nagpal
Asked: September 2, 2022In:
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I’ve configured MCU Boot in FSP3.8.0 to use external QSPI for the secondary slot which works when not coded. Still, if I enable ECISE encryption in RASC and put an coded image in the secondary slot in QSPI, MCU Boot ...Read more

I’ve configured MCU Boot in FSP3.8.0 to use external QSPI for the secondary slot which works when not coded. Still, if I enable ECISE encryption in RASC and put an coded image in the secondary slot in QSPI, MCU Boot will tell me that both the primary and secondary images aren’t valid. I’m encrypting with the python image tool using the test keys without any error from the tool. Does anyone have any ideas?

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ecisemcumicrocontrollerqspira4m3renesasRenesas Microcontroller
  1. Alex thomas

    Hi, What have you got the heap set to in the BSP settings? For ECIES more heap is needed than just ECC and AES along. Try 0x1000 and see if it works( doesn't need to be this large but reduce it once it's working). If you still have problems let me know and I'll put a demo together.

    Hi,

    What have you got the heap set to in the BSP settings? For ECIES more heap is needed than just ECC and AES along. Try 0x1000 and see if it works( doesn’t need to be this large but reduce it once it’s working).
    If you still have problems let me know and I’ll put a demo together.

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nidhi singh
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nidhi singh
Asked: August 30, 2022In:
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Hello, How we can add external flash for RENESAS RA4M1 Thanks

Hello,

How we can add external flash for RENESAS RA4M1

Thanks

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externalflashmicrocontrollerra4m1renesasRenesas Microcontroller
  1. Sandeep kumar

    Hi , The RA4M1 does not accept external parallel buses.  In order to add external memory to this device, for instance, you would need to use the IIC or SPI interfaces. Thanks

    Hi ,

    The RA4M1 does not accept external parallel buses. 
    In order to add external memory to this device, for instance, you would need to use the IIC or SPI interfaces.
    Thanks
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