Ymodem

• Xtreamerdev Repo: https://github.com/pbatard/xtreamerdev

• Ymodem Software Component in the BoxLambda Directory Tree: sw/components/test/ymodem

• Ymodem CLI Component in the BoxLambda Directory Tree: sw/components/test/ymodem_cli

This software component is a BoxLambda port of Xtreamerdev's Ymodem protocol implementation. The Ymodem API enables file transfers over the serial port. The ymodem_receive() function initiates a Ymodem transfer in BoxLambda's receive direction, storing the received file data in a memory buffer. The modem_transmit() function transfers the contents of a given memory buffer to the host PC using the Ymodem protocol.

ymodem.h:

void ymodem_init(struct uart *uart);
unsigned long ymodem_receive(unsigned char *buf, unsigned long length);
unsigned long ymodem_send(unsigned char *buf, unsigned long size, char* filename);

The ymodem software component is used by the ymodem_cli CLI component to transfer files between the host PC's file system and BoxLambda's file system:

* ymodem_rx
    ymodem_rx <filename>: Ymodem rx and save to give file.
* ymodem_tx_buf
    ymodem_tx_buf <filename> <hex address> <size_in_bytes>: Ymodem transmit given memory buffer with given filename