Ivor Hewitt

Hi thanks for the speedy comment! yeah I saw the comment about GPRS power in the various demo apps, and I've tried lots of combinations of settings, turning things off,...

You were indeed 100% spot on! after adding your capacitors to my design:  it's never had an SD card failure since. I have different issues with network registration now!...

Just adding a comment here (albeit years later) in case anyone else comes across this, it seems that if you use the callback for UART1 rather than the event handler...

Sure instead of using the event handler to process the uart use a callback instead: ``` UART_Config_t uart_config = {.baudRate = UART_BAUD_RATE_115200, // UART_BAUD_RATE_115200, .dataBits = UART_DATA_BITS_8, .stopBits = UART_STOP_BITS_1,...

um, yeah, see my comment in that earlier post! `(albeit you can't TRACE or make other uart calls from the callback)` For what you're doing copy the data somewhere and/or...

Standard FAT32 *should* be fine. There are power issues driving the SDCard as the board powers up GRPS though: https://github.com/Ai-Thinker-Open/GPRS_C_SDK/issues/421 so if you're getting intermittent errors try 1. making sure...

You can import them in library.io but I'm not sure they help really, the schematic is just the pins labelled, similarly the PCB is just the chip dimensions. Exported 2d...

I'd been trying to work out how to make calls to some of the functions that are in the elf binary but not exposed through the API. e.g. in the...

In the process of figuring out the HST protocol I've got a proof of concept code that can be used to extract flash contents directly over UART HST. It's slow...

Hmm, it was only a proof of concept, the serial receive needs completely reworking really now I know how it's arranged. It was working reliably, consistently for me. Try increasing...