Forum Post: RE: RZ/A1H, Linux, SCIF and DMA
Hi vap, BTW, it is another problem because bit rate error is particularly high with this bit rate. There is a note near Table 14.4 in RZ/A1H Group User's Manual: Hardware. "The bit rate error should...
View ArticleForum Post: RE: CPU frequency error
Hari, It depends on what the issue is, specifically. If certain protections were enabled, it may be possible to use a PG-FP5 or E1 with RFP to do a full chip erase and recover. If there is a...
View ArticleForum Post: RE: USB driver does not use DMA?
Rich- I have asked someone from development to comment on the USB question. As to what other core provided items don't use DMA, the best source of information on the hardware aspect is the MCU data...
View ArticleForum Post: RE: USB driver does not use DMA?
Hi Rich, Correct, the USB drivers at this time do not take advantage of DMA, as far as other modules, I can only speak for the Ethernet driver which does use DMA. Other modules would be a question for...
View ArticleForum Post: RE: CPU frequency error
I've now confirmed that if incorrect option bytes are programmed, it is not possible to recover the device. Sorry for the inconvenience.
View ArticleForum Post: RE: Release notes, SSP 1.0.0: USBHS/USBFS controller support
The initial development kits had this limitation of USBHS being wired up for host only and the USBFS wired with a preference for device operation. Both controllers on the MCU can handle both host and...
View ArticleForum Post: RE: Changes in circuit
Hello sir, I want to decrease the current. For 320 RPM it is taking 1.5A , I want to reduce it up to 1.2A.
View ArticleForum Post: RE: RH850 + E1 + GHS
I am not aware with any other erasing methods :( I don't know if any option byte was about internal clk source, but if it was, maybe RH850 switched to other frequency (internal oscillator?) and...
View ArticleForum Post: Accessing the display
I'm "painting" to the display by writing directly to the two frame buffers I have (g_display_fb_background[0] and/or g_display_fb_background[1]) but I'm having problems sometimes. I have ThreadX so I...
View ArticleForum Post: RE: Changes in circuit
Dips, The initial schematics and the last one do not match. The initial is based on OpAmps, and the last is based on bipolar transistors. Could you please approve which one is correct? Kind regards,...
View ArticleForum Post: RE: Accessing the display
Hi, I'm not aware of any precautions other than to make sure that nothing else is writing to the framebuffer (make sure your screen is stationary). Here's the code I'm using in my applications:...
View ArticleForum Post: RE: Accessing the display
Thank you very much Karol. I'm using the same pixel access and because you are telling me that I don't need special precautions, my problems should come from another place. Now I'm suspecting on the...
View ArticleForum Post: RE: Starter Kit demo source code
Where is this source code? I only see two entries at the above mentioned location and none are the code requested.
View ArticleForum Post: RE: Starter Kit demo source code
Aaron- Looks like a broken/moved link. I will find out about the new location and post it here.
View ArticleForum Post: RE: Starter Kit demo source code
Aaron- This is the new link to find the HMI related Synergy App notes- now moved to renesas.com am.renesas.com/.../Application_Notes.jsp...
View ArticleForum Post: Discrepancy/Bug with LVDSPLL_TST register in VDC5 sample
I'm trying to adapt the VDC5 sample to our custom hardware and have discovered a discrepancy between the RZ User's Manual and the sample code. In Section 40 (p.40-5) of the User's Manual, the 6-bit...
View ArticleForum Post: RE: Discrepancy/Bug with LVDSPLL_TST register in VDC5 sample
Good point. The Linux driver does the same thing: github.com/.../vdc5fb.c tmp = vdc5fb_read(priv, LCLKSELR); /* Internal parameter setting for LVDS PLL */ tmp |= LVDS_SET_TST(0x0008);...
View ArticleForum Post: RE: Embedded World Special Report
Thanx for the special report. Almost as good as being there (almost).
View ArticleForum Post: RE: My latest post on Synergy Platform Starter Kits
Thanx for all the information on Synergy Kits. Makes it easy to find the one I need.
View ArticleForum Post: RE: Are there any DMA channel limitations when using external...
Rich- According to the Hardware Manual accesses to reserved areas is prohibited. See section 4 of the hardware manual. The CS space is not reserved and available for transfers according to figure 4.1....
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