Sean Burford / i2c_pullup

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Dependencies:   max32625pico maxim-dev mbed-rtos USBDevice

Fork of PICO_USB_I2C_SPI by Greg Steiert

Diff: main.cpp

Revision:
19:1a13f0c067b1
Parent:
17:43cc59f768af
Child:
20:166e033d5073
diff -r a6d2db32f84e -r 1a13f0c067b1 main.cpp
--- a/main.cpp	Tue Nov 28 05:58:33 2017 +0000
+++ b/main.cpp	Tue Nov 28 06:07:43 2017 +0000
@@ -46,6 +46,7 @@
 } chip_t;
 
 void showRegisters(char* regs) {
+    // Datasheet table 28 "Register Default Values"
     int i;
     for (i = 0; i < 0x20; i++) {
         serial.printf("%02X ", regs[i]);
@@ -53,7 +54,9 @@
     serial.printf("\r\n");
     if (regs[0] != 0x01) return;
     chip_t chipType = UNKNOWN;
+    // regs[6] BoostCfg
     if (regs[6] == 0xC0) {
+        // regs[7] BuckVSet
         switch(regs[7]) {
         case 0x08: chipType = MAX14750A; break;
         case 0x20: chipType = MAX14750B; break;
@@ -62,6 +65,7 @@
         }
     } else if (regs[6] == 0xE0) {
         bool aOrB = false;
+        // regs[9] BuckISet
         switch(regs[9]) {
         case 0xA7: aOrB = true; break;
         case 0x07: chipType = MAX14720C; break;
@@ -69,6 +73,7 @@
         default: break;
         }
         if (aOrB) {
+            // regs[B] LDOCfg
             if (regs[0x0B] == 0x80) {
                 chipType = MAX14720A;
             } else if (regs[0x0B] == 0xE1) {