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Revision 0:1eda7e4ab843, committed 2010-02-07
- Comitter:
- GaryTrimble
- Date:
- Sun Feb 07 03:55:44 2010 +0000
- Commit message:
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 1eda7e4ab843 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sun Feb 07 03:55:44 2010 +0000 @@ -0,0 +1,90 @@ +#include "mbed.h" + +SPI spi(p5,p6,p7); +DigitalOut cs(p8); +InterruptIn Max3140Data(p9); + +Serial pc(USBTX, USBRX); + +int ret = 0; +char input_character = 0; +char output_character = 0; +char input_buffer[16384]; +int input_buffer_pointer = 0; +int output_buffer_pointer = 0; + +void gotit() { + + cs = 0; + ret = 0; + ret = spi.write(0x0000); + cs = 1; + input_character = char(ret & 0x7F); + input_buffer[input_buffer_pointer++] = input_character; + //pc.printf("%c",input_character); +} + +void Max3140_Write(char output_byte){ + ret = 0; + cs = 0; + ret = spi.write(0x8000 | output_byte); + cs = 1; + wait(0.0001); + } + + +int main(){ + + spi.format(16,0); + spi.frequency(1000000); + + Max3140Data.mode(PullUp); + Max3140Data.fall(&gotit); + + wait(0.5); + + Max3140_Write('H'); + Max3140_Write('e'); + Max3140_Write('l'); + Max3140_Write('l'); + Max3140_Write('o'); + Max3140_Write('\r'); + Max3140_Write('\n'); + + ret = 0; + cs = 0; + ret = spi.write(0xC400); + cs = 1; + wait(0.1); + //pc.printf("\r\nWRITE CONFIGURATION register = 0x%04X\r\n ", ret); + + cs = 0; + ret = spi.write(0x4000); + cs = 1; + //pc.printf("\r\nREAD CONFIGURATION register = 0x%04X\r\n", ret); + wait(0.1); + + // Try to read some data + + ret = 0; + cs = 0; + ret = spi.write(0x8600); + cs = 1; + + wait(0.1); + + //cs = 0; + //ret = spi.write(0x0000); + // cs = 1; + + pc.printf("at loop\r\n"); + input_buffer_pointer = output_buffer_pointer = 0; + for(;;){ + if(input_buffer_pointer > output_buffer_pointer){ + //pc.printf("%d %d\r\n", input_buffer_pointer, output_buffer_pointer); + output_character = input_buffer[output_buffer_pointer++]; + pc.printf("%c", output_character); + } + } + +} \ No newline at end of file
diff -r 000000000000 -r 1eda7e4ab843 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Feb 07 03:55:44 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/737756e0b479