Search found 122 matches

by mmar
Thu Mar 07, 2024 2:15 pm
Forum: XMOS Devices
Topic: Xburn explained documents
Replies: 2
Views: 1084

Re: Xburn explained documents

Thanks for links, but this is all basic info. Never writed about enable disable and back enable or multiple use write otp file usw.
by mmar
Wed Mar 06, 2024 7:57 pm
Forum: XMOS Devices
Topic: Xburn explained documents
Replies: 2
Views: 1084

Xburn explained documents

Exist any document about xburn repeat use process in developer mode.
I make some tests and isnt clean how code and changes is enabled...
by mmar
Fri Nov 17, 2023 10:00 am
Forum: XMOS Devices
Topic: Bidirectionality of a XU316-1024-QF60B-C24 pins
Replies: 4
Views: 16878

Re: Bidirectionality of a XU316-1024-QF60B-C24 pins

How bidirectional busses work? I2C is the simplest pin to have this question. Simple explain is semantic code set port 4E as input all pins is input check somethink on it switch port 4E to output open drain or based on your schematics write out data for SDA ACK on one bit set port 4E back to input ...
by mmar
Mon Nov 06, 2023 7:22 pm
Forum: Development Tools and Programming
Topic: xflash problem cant find target XN
Replies: 9
Views: 22891

Re: xflash problem cant find target XN

You create some mistakes , cant place after upgrade 1 path to file, you learn right syntax
For bin name and folder is simpler use checkbox Output to file etc.
by mmar
Wed Sep 13, 2023 5:58 pm
Forum: Getting started
Topic: custom XMOS board not working with AN00129
Replies: 9
Views: 27364

Re: custom XMOS board not working with AN00129

Maybe you skip important point. Between 1 and 2 is required configure xn file in project for your board schematics.
by mmar
Mon Aug 21, 2023 3:29 pm
Forum: XMOS Devices
Topic: XMOS automatic boot
Replies: 2
Views: 8193

Re: XMOS automatic boot

Simpler RC isnt good for XMOS plus at moment of reset you need valid CLK. Not scoped.
Try quicker RC or better voltage controller reset ICs.
by mmar
Tue Jul 25, 2023 5:55 pm
Forum: Development Tools and Programming
Topic: AN00124_CDC_VCOM_class as UART bridge
Replies: 8
Views: 27764

Re: AN00124_CDC_VCOM_class as UART bridge

I go back to most simple while based on references : while (1) { // Wait for a byte to uart select { case uart_rx.data_ready(): { uint8_t data = uart_rx.read(); cdc.put_char(data); } break; default : break; } if (cdc.available_bytes() != 0) { char data_from_cdc = cdc.get_char(); uart_tx.write(data_f...
by mmar
Tue Jul 25, 2023 3:47 pm
Forum: Development Tools and Programming
Topic: XUF232-1024-FB374-C40A Not Booting
Replies: 9
Views: 63100

Re: XUF232-1024-FB374-C40A Not Booting

We have simmilar problem and my result is xburn code is buggy and dont verify otp before lockit = locked is failed OTP. Result is unusable brick.
I create own verify script , that handle burn in more phases write - read - compare - lock or if compare fail write repeat. That help XUF216,208 .
by mmar
Tue Jul 25, 2023 3:34 pm
Forum: Development Tools and Programming
Topic: AN00124_CDC_VCOM_class as UART bridge
Replies: 8
Views: 27764

Re: AN00124_CDC_VCOM_class as UART bridge

@Ross now i do loopback and second com loopback testing and handle code to work OK to speed 115200, but rx part lib_uart seems have here top limit. Any speed over fail received data. Transmit part work ok on higher speeds. My tip is lib_gpio used on rx isnt able use higher speed, but i cant handle w...
by mmar
Wed Jul 05, 2023 7:49 am
Forum: Development Tools and Programming
Topic: AN00124_CDC_VCOM_class as UART bridge
Replies: 8
Views: 27764

Re: AN00124_CDC_VCOM_class as UART bridge

Im two weeks OOO , but still need code , that will work as CP2102 for example.