DS9400.cpp

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00032 
00033 #include "DS9400.hpp"
00034 
00035 namespace MaximInterface {
00036 
00037 error_code DS9400::waitAwake() {
00038   error_code result;
00039   uint_least8_t data;
00040   do {
00041     result = uart->readByte(data);
00042   } while (!result && data != 0xA5);
00043   return result;
00044 }
00045 
00046 error_code DS9400::start() { return uart->writeByte('S'); }
00047 
00048 error_code DS9400::start(uint_least8_t address) {
00049   error_code result = start();
00050   if (!result) {
00051     result = writeByte(address);
00052   }
00053   return result;
00054 }
00055 
00056 error_code DS9400::stop() { return uart->writeByte('P'); }
00057 
00058 error_code DS9400::writeByte(uint_least8_t data) {
00059   const uint_least8_t packet[] = {'Q', data};
00060   error_code result = uart->clearReadBuffer();
00061   if (!result) {
00062     result = uart->writeBlock(packet);
00063     if (!result) {
00064       result = uart->readByte(data);
00065       if (!result && data != 0) {
00066         result = make_error_code(I2CMaster::NackError);
00067       }
00068     }
00069   }
00070   return result;
00071 }
00072 
00073 error_code DS9400::readByte(AckStatus status, uint_least8_t & data) {
00074   error_code result = uart->clearReadBuffer();
00075   if (!result) {
00076     result = uart->writeByte(status == Ack ? 'R' : 'N');
00077     if (!result) {
00078       result = uart->readByte(data);
00079     }
00080   }
00081   return result;
00082 }
00083 
00084 error_code DS9400::configure(uint_least8_t config) {
00085   const uint_least8_t packet[] = {'C', config};
00086   return uart->writeBlock(packet);
00087 }
00088 
00089 } // namespace MaximInterface