PSoC™ 5, 3 & 1 – Microcontrollers Forum

PSoC™ 5, 3 & 1 Forum Discussions

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Trying to get i2c master working on S6E1C3. I'm looking at the example code from "i2c_master_polling". I notice that it does not show an example of a ... Show More

By sittinhawk

Aug 30, 2023

202

PSoC™ 5, 3 & 1

Problem reading adjacent FIFO registers using 16 bit accesses

I'm having a problem using FIFOs in external access mode (where they can both be read and written by the CPU and DMA) and using 16 bit working registe... Show More

I'm having a problem using FIFOs in external access mode (where they can both be read and written by the CPU and DMA) and using 16 bit working register concatenation mode. I can instantiate a component that uses FIFOs f0 and f1 of a datapath, fill both FIFOs using 8 or 16 bit accesses just fine, but when I attempt to read the FIFOs using 16 bit accesses, I get strange results where I keep seeing a single value repeated 4 times.

I've created a github repository with a sample project here: https://github.com/nlshipp/PSoc5_FifoTest

Note that I'm not using the bus or block status bits in this example as I'm only adding or removing 4 elements to the FIFO at any time.

The sample clears the FIFOs, fills the two FIFOs of a datapath with four sets of values using either 8 or 16 bit accesses. It then reads the values out using 8 or 16 bit accesses, fills them again using a different set of values and reads them again. Each run uses a different combination of 8 or 16 bit accesses. Here's the output:

** First run using 8 bit accesses and produces correct output
Filling FIFOs
Printing FIFOs
F0=00 F1=10
F0=01 F1=11
F0=02 F1=12
F0=03 F1=13
Filling FIFOs
Printing FIFOs
F0=20 F1=30
F0=21 F1=31
F0=22 F1=32
F0=23 F1=33
Clearing FIFOs

** 2nd run: Output is correct
Filling fifos using 16 bit word
Filling FIFOs
Printing FIFOs
F0=00 F1=10
F0=01 F1=11
F0=02 F1=12
F0=03 F1=13
Filling FIFOs
Printing FIFOs
F0=20 F1=30
F0=21 F1=31
F0=22 F1=32
F0=23 F1=33
Clearing FIFOs

** Third run produces bad output:
Read fifos using 16 bit word
Filling FIFOs
Printing FIFOs
F0=00 F1=10
F0=01 F1=10
F0=02 F1=10
F0=03 F1=10
Filling FIFOs
Printing FIFOs
F0=20 F1=33
F0=21 F1=33
F0=22 F1=33
F0=23 F1=33
Clearing FIFOs

** Fourth run produces bad output:
Filling fifos using 16 bit word
Read fifos using 16 bit word
Filling FIFOs
Printing FIFOs
F0=00 F1=10
F0=01 F1=10
F0=02 F1=10
F0=03 F1=10
Filling FIFOs
Printing FIFOs
F0=20 F1=33
F0=21 F1=33
F0=22 F1=33
F0=23 F1=33

** 5th run uses 8 bit accesses again and produces the correct output.
Clearing FIFOs
Filling FIFOs
Printing FIFOs
F0=00 F1=10
F0=01 F1=11
F0=02 F1=12
F0=03 F1=13
Filling FIFOs
Printing FIFOs
F0=20 F1=30
F0=21 F1=31
F0=22 F1=32
F0=23 F1=33

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By neilsh

Sep 3, 2023

319

PSoC™ 5, 3 & 1

write C code in linux to communicate with psoc

Solved

Hi All, where can I find information how to write code that communicate with PSOC through buffer or with API to get from PSOC details? I mean the API... Show More

By Alexander

Aug 24, 2023

337

PSoC™ 5, 3 & 1

spectrum analyser equalizer

I want to make a spetrum analiser with deep frequencies on the left and high pitch frequencies on the right, and have been told to come to this site... Show More

By maglatronix

Sep 2, 2023

550

PSoC™ 5, 3 & 1

FreeSOC Replacement

Solved

What board has replaced the Sparkfun board for designs that need max I/O ? For development in PSOC 5LP ? I need ~ 60 I/O, target CY8C58 family. Re... Show More

By ETRO_SSN583

Sep 1, 2023

275

PSoC™ 5, 3 & 1

sine wave generation with changeable parameters like amplitude etc from ...

Solved

Hello All.I am new in psoc , I have psoc 5lp and I have tried wavedac block to generate sinewave but there I didn't find any api to change its amplitu... Show More

By tabishmisbah

Aug 23, 2023

411

PSoC™ 5, 3 & 1

USB general data transfer issues with HID drivers in Ubuntu

Hi Guys, I have been using Linux reference code for GPIO toggle with PSOC 5 interface. Device detect is successful although, still I am seeing error (... Show More

By SuDeEpT

Aug 23, 2023

261

PSoC™ 5, 3 & 1

PSoC5LP and I2C, How send and receive a frame of 10 databyte.

Solved

I use the I2CM component in Multimaster-slave mode. They are no problem to send the frame array of several bytes. (1byte, 2byte,3bytes,4byte....) But ... Show More

By DeMA_2593386

Aug 28, 2023

348

PSoC™ 5, 3 & 1

Program KitProg3 hex image and bring up KitProg3 with 'CY8C5868LTI-LP039...

Hi, We had built-in one "CY8C5868LTI-LP039" on our EVB which has identical KitProg3 schematic refer from "CY8CPROTO-062-4343W". To bring up this KitPr... Show More

By NeilCheng

Jul 26, 2023

2059

PSoC™ 5, 3 & 1

Read TimerStatus using DMA

Solved

I have used PSOC 1 extensively some years ago. I purchased a PSOC5 development kit also some years ago and decided recently to explore it. I am pretty... Show More

By BernieK

Aug 24, 2023

553