From b63f36cba089c0286083ec59643925835012609b Mon Sep 17 00:00:00 2001 From: Bart Van Der Meerssche Date: Tue, 28 Dec 2010 14:34:56 +0100 Subject: [PATCH] avr: move SPI_... defs to header file, change value into counter name --- mote/v2/avr/ctrl.c | 8 +++--- mote/v2/avr/main.c | 71 ++++++++++++++++++++-------------------------- mote/v2/avr/main.h | 64 ++++++++++++++++++++++++++++++++++++++++- 3 files changed, 97 insertions(+), 46 deletions(-) diff --git a/mote/v2/avr/ctrl.c b/mote/v2/avr/ctrl.c index 866bbf3..083e8f0 100644 --- a/mote/v2/avr/ctrl.c +++ b/mote/v2/avr/ctrl.c @@ -232,11 +232,11 @@ void ctrlCmdGet(uint8_t cmd) } break; - case 'v': + case 'c': ctrlReadCharFromRxBuffer(&i); cli(); - tmp32 = sensor[i].value; + tmp32 = sensor[i].counter; sei(); ctrlWriteLongToTxBuffer(tmp32); @@ -274,12 +274,12 @@ void ctrlCmdSet(uint8_t cmd) } break; - case 'v': + case 'c': ctrlReadCharFromRxBuffer(&i); ctrlReadLongFromRxBuffer(&tmp32); cli(); - sensor[i].value = tmp32; + sensor[i].counter = tmp32; sei(); break; diff --git a/mote/v2/avr/main.c b/mote/v2/avr/main.c index 9fc409b..e031577 100644 --- a/mote/v2/avr/main.c +++ b/mote/v2/avr/main.c @@ -32,22 +32,9 @@ #include "global.h" #include "encode.h" -#define NO_OP_1 1 -#define NO_OP_2 2 -#define START_TX 4 -#define TRANSMIT 8 -#define HIGH_HEX 16 -#define TO_FROM_UART 32 -#define NEW_CTRL_MSG 64 +volatile uint8_t spi_status, spi_high_hex; -#define SPI_END_OF_TX 0x00 -#define SPI_END_OF_MESSAGE '.' -#define SPI_FORWARD_TO_UART_PORT 'u' -#define SPI_FORWARD_TO_CTRL_PORT 'l' // 'l'ocal port - -volatile uint8_t spi_status, high_hex; - -uint8_t EEMEM first_EEPROM_byte_not_used_to_protect_from_brownout_corruption = 0x00; +uint8_t EEMEM first_EEPROM_byte_not_used_to_protect_from_brownout_corruption = 0xab; volatile struct event_struct EEMEM EEPROM_event = {0, 0}; volatile struct event_struct event; @@ -58,37 +45,39 @@ uint8_t phy_to_log[MAX_SENSORS]; volatile struct sensor_struct EEMEM EEPROM_sensor[MAX_SENSORS]; volatile struct sensor_struct sensor[MAX_SENSORS]; +volatile struct state_struct state[MAX_SENSORS]; + ISR(SPI_STC_vect) { uint8_t spi_rx, rx, tx; uint16_t spi_tx; // the SPI is double-buffered, requiring two NO_OPs when switching from Tx to Rx - if (spi_status & (NO_OP_1 | NO_OP_2)) { + if (spi_status & (SPI_NO_OP_1 | SPI_NO_OP_2)) { spi_status--; return; } // do we have to transmit the first byte? - if (spi_status & START_TX) { + if (spi_status & SPI_START_TX) { received_from_spi(SPI_FORWARD_TO_CTRL_PORT); - spi_status &= ~START_TX; + spi_status &= ~SPI_START_TX; return; } // are we in Tx mode? - if (spi_status & TRANSMIT) { - if (spi_status & HIGH_HEX) { - received_from_spi(high_hex); - spi_status &= ~HIGH_HEX; + if (spi_status & SPI_TRANSMIT) { + if (spi_status & SPI_HIGH_HEX) { + received_from_spi(spi_high_hex); + spi_status &= ~SPI_HIGH_HEX; return; } - if (spi_status & TO_FROM_UART) { + if (spi_status & SPI_TO_FROM_UART) { if (!uartReceiveByte(&tx)) { received_from_spi(SPI_END_OF_TX); - spi_status &= ~TRANSMIT; - spi_status |= NO_OP_2; + spi_status &= ~SPI_TRANSMIT; + spi_status |= SPI_NO_OP_2; return; } } @@ -99,14 +88,14 @@ ISR(SPI_STC_vect) } else { received_from_spi(SPI_FORWARD_TO_UART_PORT); - spi_status |= TO_FROM_UART; + spi_status |= SPI_TO_FROM_UART; return; } } spi_tx = btoh(tx); - high_hex = (uint8_t)spi_tx; - spi_status |= HIGH_HEX; + spi_high_hex = (uint8_t)spi_tx; + spi_status |= SPI_HIGH_HEX; received_from_spi((uint8_t)(spi_tx >> 8)); return; } @@ -114,29 +103,29 @@ ISR(SPI_STC_vect) // we're in Rx mode switch (spi_rx = received_from_spi(0x00)) { case SPI_END_OF_TX: - spi_status |= TRANSMIT | START_TX; - spi_status &= ~(HIGH_HEX | TO_FROM_UART); + spi_status |= SPI_TRANSMIT | SPI_START_TX; + spi_status &= ~(SPI_HIGH_HEX | SPI_TO_FROM_UART); break; case SPI_END_OF_MESSAGE: - if (!(spi_status & TO_FROM_UART)) { + if (!(spi_status & SPI_TO_FROM_UART)) { ctrlAddToRxBuffer(spi_rx); - spi_status |= NEW_CTRL_MSG; + spi_status |= SPI_NEW_CTRL_MSG; } break; case SPI_FORWARD_TO_UART_PORT: - spi_status |= TO_FROM_UART; + spi_status |= SPI_TO_FROM_UART; break; case SPI_FORWARD_TO_CTRL_PORT: - spi_status &= ~TO_FROM_UART; + spi_status &= ~SPI_TO_FROM_UART; break; default: - if (spi_status & HIGH_HEX) { - rx = htob(((uint16_t)high_hex << 8) + spi_rx); + if (spi_status & SPI_HIGH_HEX) { + rx = htob(((uint16_t)spi_high_hex << 8) + spi_rx); uartAddToTxBuffer(rx); } else { - if (spi_status & TO_FROM_UART) { - high_hex = spi_rx; + if (spi_status & SPI_TO_FROM_UART) { + spi_high_hex = spi_rx; } else { ctrlAddToRxBuffer(spi_rx); @@ -145,7 +134,7 @@ ISR(SPI_STC_vect) } // toggle the HEX bit in spi_status - spi_status ^= HIGH_HEX; + spi_status ^= SPI_HIGH_HEX; } } @@ -248,10 +237,10 @@ int main(void) for(;;) { - if (spi_status & NEW_CTRL_MSG) { + if (spi_status & SPI_NEW_CTRL_MSG) { //ctrlRxToTxLoop(); ctrlDecode(); - spi_status &= ~NEW_CTRL_MSG; + spi_status &= ~SPI_NEW_CTRL_MSG; } // toggle the LED=PB0 pin diff --git a/mote/v2/avr/main.h b/mote/v2/avr/main.h index 0759e84..d2b51ce 100644 --- a/mote/v2/avr/main.h +++ b/mote/v2/avr/main.h @@ -1,10 +1,72 @@ +#define SPI_NO_OP_1 1 +#define SPI_NO_OP_2 2 +#define SPI_START_TX 4 +#define SPI_TRANSMIT 8 +#define SPI_HIGH_HEX 16 +#define SPI_TO_FROM_UART 32 +#define SPI_NEW_CTRL_MSG 64 + +#define SPI_END_OF_TX 0x00 +#define SPI_END_OF_MESSAGE '.' +#define SPI_FORWARD_TO_UART_PORT 'u' +#define SPI_FORWARD_TO_CTRL_PORT 'l' // 'l'ocal port + struct event_struct { uint16_t wdt; uint16_t brown_out; }; struct sensor_struct { - uint32_t value; + uint32_t counter; uint16_t meterconst; }; +#define STATE_PULSE = 1 +#define STATE_TOGGLE = 2 +#define STATE_POWER = 4 + +struct state_struct { + uint8_t flags; + + uint32_t nano; + uint32_t nano_start; + uint32_t nano_end; + uint8_t pulse_count; + uint8_t pulse_count_final; + + uint32_t power; + uint32_t timestamp; +}; + +/* + * This macro performs a 16x16 -> 32 unsigned MAC in 37 cycles with operands and results in memory + * based on http://www2.ife.ee.ethz.ch/~roggend/publications/wear/DSPMic_v1.1.pdf par 3.4 and table 31. + */ +#define MacU16X16to32(uint_32Acc, uint_16In1, uint_16In2) \ +asm volatile ( \ + "clr r2 \n\t" \ + "mul %B2, %B1 \n\t" \ + "movw r4, r0 \n\t" \ + "mul %A2, %A1 \n\t" \ + "add %A0, r0 \n\t" \ + "adc %B0, r1 \n\t" \ + "adc %C0, r4 \n\t" \ + "adc %D0, r5 \n\t" \ + "mul %B2, %A1 \n\t" \ + "add %B0, r0 \n\t" \ + "adc %C0, r1 \n\t" \ + "adc %D0, r2 \n\t" \ + "mul %A2, %B1 \n\t" \ + "add %B0, r0 \n\t" \ + "adc %C0, r1 \n\t" \ + "adc %D0, r2 \n\t" \ + "clr r1 \n\t" \ + : \ + "+r" (uint_32Acc) \ + : \ + "a" (uint_16In1), \ + "a" (uint_16In2) \ + : \ + "r2", "r4", "r5" \ +) +