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| Search found 73 matches |
| Author | Message |
|---|---|
 Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
 Forum: General CCS C Discussion Posted: Mon Nov 04, 2019 3:04 am Subject: driver for SPI FRAM CY15B104Q |
| I'm already at single byte write at 4.9 us, read of single byte 4.1 us, and block of 21 bytes read 19us, so it is acceptable with my project requirements.
More will write you later on and release the ... |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sun Nov 03, 2019 1:26 pm Subject: driver for SPI FRAM CY15B104Q |
| Byte is 500 ns, not bit, sorry my mistake, but with gap of 1us between each byte, and sending of 7 bytes per each write, we get the 10us write time per one byte of data. We have 7x500 ns for data + ... | |
| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sun Nov 03, 2019 11:48 am Subject: driver for SPI FRAM CY15B104Q |
| Yes, you are right, it is 2MHz, not 16.
Setting up again the DSO to measure again. |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sun Nov 03, 2019 11:37 am Subject: driver for SPI FRAM CY15B104Q |
| This is the setup of my clocking, and FRAM SPI
#include <33EP512MU810.h> #build(stack=4096) #use delay(clock=131072kHz, oscillator=30.72MHz, pll_wait, USB_FULL, AUX:clock= ... |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sun Nov 03, 2019 11:31 am Subject: driver for SPI FRAM CY15B104Q |
| checking again, and back soon to you.
I definitely prefer to have much faster FRAM due to my application, maybe I'm not doing something properly Thank you for your kind answer BR |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sun Nov 03, 2019 11:04 am Subject: driver for SPI FRAM CY15B104Q |
| Reading speed for 1 byte is 450 ns, same with writing of one byte.
I made a mistake in measurements, 450 ns is for one bit, not for one byte The maximum speed for one byte write (with SPI running at ... |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Sat Nov 02, 2019 3:14 am Subject: driver for SPI FRAM CY15B104Q |
| I have had exactly the same idea and already testing this.
So, you confirmed that I'm in a good way. Thank you and Kind Regards. |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Fri Nov 01, 2019 6:25 pm Subject: driver for SPI FRAM CY15B104Q |
| Hi,
I'm trying to implement also to this external SPI memory a circular buffer, seems that the well known implementation used in the EX_SISR code is not easy to implement. My data package is 22 by ... |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 2:56 pm Subject: driver for SPI FRAM CY15B104Q |
| It is an external memory for A/D data collection from 3 x 32 bits + time stamp.
Not super fast but OK. So, Block can also be used, but not expect to have it very much faster. I will test it and repo ... |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 1:10 pm Subject: driver for SPI FRAM CY15B104Q |
| Reading speed for 1 byte is 450 ns, same with writing of one byte. | |
| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 11:04 am Subject: driver for SPI FRAM CY15B104Q |
| Working properly, cleaning up the source and release by tomorrow
BR |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 9:25 am Subject: driver for SPI FRAM CY15B104Q |
| Hardware corrected, now back on DSO and checking.
It is a real time debugging ;-) |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 8:44 am Subject: driver for SPI FRAM CY15B104Q |
| Found that F8 is used as test point, so easy to solder a wire, as to 100 pins TQFP is very difficult to solder anything on pins, so isolated the FRAM SO, but pushing it up, and solder a bridge to F8, ... | |
| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 7:59 am Subject: driver for SPI FRAM CY15B104Q |
| OK. Thank you, taking my knife for action and microscope
soon back to you |
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| Topic: driver for SPI FRAM CY15B104Q |
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| micro_debugger Replies: 33 Views: 64105 |
Forum: General CCS C Discussion Posted: Thu Oct 31, 2019 6:37 am Subject: driver for SPI FRAM CY15B104Q |
| Sorry for my late replying.
Just was inside of the IC :-) I'm using DSPIC33EP512MU810 but PCB received with bug, and now trying to solve it. They used a wrong pin for SPI1, so the only solution wa ... |
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