From e22be4b47ba00d9cf43a234dca1eb44e73643f59 Mon Sep 17 00:00:00 2001 From: Philippe Teuwen Date: Wed, 22 May 2019 00:05:19 +0200 Subject: [PATCH] uart high speed tested --- doc/uart_notes.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/uart_notes.md b/doc/uart_notes.md index 1490f85d1..d074bddc8 100644 --- a/doc/uart_notes.md +++ b/doc/uart_notes.md @@ -37,7 +37,7 @@ This USART can be reached from the host client (if connected via USB-CDC) throug So, `usart config` changes the Proxmark3 USART baudrate and parity, while e.g. `usart txrx d AT+Px` and `usart txrx d AT+BAUDx` changes the BT add-on parity and baudrate. And for things to work fine, both sets have to match! -Internally, the desired baudrate is converted to UART settings: a BRGR and a FP. The resulting baudrate will be close to but not always equal to the desired baudrate. Serial ports typically have some error tolerance in the actual baudrates. Theoretically < 2.5% on each side (so 5% in total), < 2% to be on the safe side. In the current firmware configuration, the Proxmark3 can provide any baudrate up to 2Mbauds with an error of max 2%, and selected baudrates up to 6Mbauds. TODO to be tested. +Internally, the desired baudrate is converted to UART settings: a BRGR and a FP. The resulting baudrate will be close to but not always equal to the desired baudrate. Serial ports typically have some error tolerance in the actual baudrates. Theoretically < 2.5% on each side (so 5% in total), < 2% to be on the safe side. In the current firmware configuration, the Proxmark3 can provide any baudrate up to 2Mbauds with an error of max 2%, and selected baudrates up to 6Mbauds (tested with a FTDI C232HM DDHSL-0 cable). ## Proxmark3 FPC USART + BT add-on (blue shark)