I2C-bus switch with reset
Dependencies: mbed
PCA9546A.cpp
- Committer:
- wataaki
- Date:
- 2015-02-04
- Revision:
- 0:afc432dbba61
File content as of revision 0:afc432dbba61:
#include "mbed.h" I2C i2c(p28,p27); // sda, scl Serial pc(USBTX, USBRX); // tx, rx char cmd[32]; int i, j, k; int sw; int main () { i2c.frequency(100000); pc.printf("PCA9546A Sample Program\r\n"); // PCA9546A while(1) { pc.printf("選択チャネルは? 0 0 0 0 CH3 CH2 CH1 CH0 16進数で入力 \r\n"); pc.scanf("%x", &sw); pc.printf("CH3=%d, CH2=%d, CH1=%d, CH0=%d\r\n\r\n", (sw & 0x8)>>3, (sw & 0x4)>>2, (sw & 0x2)>>1, (sw & 0x1)); cmd[0] = sw; // PCA9546 Cont Reg Ch1 enabled i2c.write(0xe8, cmd, 1); // Send command string } }