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7907687abf
By uploading a BASIC loop and then run it, we can reduce the serial communication to pure content which greatly reduces the overhead and make the process much much faster.
27 lines
559 B
C
27 lines
559 B
C
#include <stdlib.h>
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#include <unistd.h>
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void sendcmd(int fd, char *cmd)
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{
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char junk[2];
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while (*cmd) {
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write(fd, cmd, 1);
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read(fd, &junk, 1);
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cmd++;
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// The other side is sometimes much slower than us and if we don't let
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// it breathe, it can choke.
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usleep(1000);
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}
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write(fd, "\n", 1);
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read(fd, &junk, 2); // sends back \r\n
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usleep(1000);
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}
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// Send a cmd and also read the "> " prompt
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void sendcmdp(int fd, char *cmd)
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{
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char junk[2];
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sendcmd(fd, cmd);
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read(fd, &junk, 2);
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}
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