meterbus state machine
This commit is contained in:
parent
bff688884b
commit
387f562629
@ -4,6 +4,38 @@
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#include <main.h>
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#include <main.h>
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#include <stdint.h>
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#include <stdint.h>
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typedef struct {
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uint8_t start1;
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uint8_t length1;
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uint8_t length2;
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uint8_t start2;
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uint8_t l;
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uint8_t c;
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uint8_t a;
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uint8_t ci;
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uint8_t *userdata;
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uint8_t chksum;
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uint8_t stop;
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} t_longframe;
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typedef enum {
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MBCR_SUCCESS = 0,
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MBCR_ERROR_TIMEOUT,
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MBCR_ERROR_LOOP_FAILURE,
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MBCR_ERROR_TX_REG_UNACCESSIBLE,
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MBCR_ERROR_OUT_OF_MEMORY__FRAME,
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MBCR_ERROR_OUT_OF_MEMORY__USERDATA,
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MBCR_ERROR_STATE_ENGINE__START1,
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MBCR_ERROR_STATE_ENGINE__LENGTH1,
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MBCR_ERROR_STATE_ENGINE__LENGTH2,
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MBCR_ERROR_STATE_ENGINE__START2,
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MBCR_ERROR_STATE_ENGINE__INVALID_CHKSUM,
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MBCR_ERROR_STATE_ENGINE__STOP,
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MBCR_ERROR_STATE_ENGINE__ILLEGAL_STATE,
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MBCR_ERROR_STATE_ENGINE__UNKNOWN
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} t_mbusCommResult;
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void mbusCommRequest(uint8_t cmd, uint8_t addr);
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void mbusCommRequest(uint8_t cmd, uint8_t addr);
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void mbusCommTxCpltCallback(UART_HandleTypeDef *huart);
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void mbusCommTxCpltCallback(UART_HandleTypeDef *huart);
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void mbusCommRxCpltCallback(UART_HandleTypeDef *huart);
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void mbusCommRxCpltCallback(UART_HandleTypeDef *huart);
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@ -14,13 +14,24 @@
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typedef enum {
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typedef enum {
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IDLE,
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MBCS_IDLE,
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SEND,
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MBCS_SEND,
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SEND_CONT,
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MBCS_SEND_CONT,
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SENDING_DONE,
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MBCS_SENDING_DONE,
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ENABLE_FRONTEND,
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MBCS_ENABLE_FRONTEND,
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RECEIVING,
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MBCS_START1,
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DISABLE_FRONTEND
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MBCS_LENGTH1,
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MBCS_LENGTH2,
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MBCS_START2,
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MBCS_C_FIELD,
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MBCS_A_FIELD,
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MBCS_CI_FIELD,
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MBCS_USERDATA,
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MBCS_CHKSUM,
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MBCS_STOP,
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MBCS_DONE,
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MBCS_DISABLE_FRONTEND,
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MBCS_ERROR
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} e_mbusCommState;
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} e_mbusCommState;
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typedef struct {
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typedef struct {
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@ -32,16 +43,18 @@ typedef struct {
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uint8_t receiveCnt;
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uint8_t receiveCnt;
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uint8_t receivedOctet;
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uint8_t receivedOctet;
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bool receiving;
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bool receiving;
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t_mbusCommResult result;
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t_longframe frame;
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} t_mbusCommHandle;
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} t_mbusCommHandle;
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static t_mbusCommHandle mbusCommHandle = { .state = IDLE, .retryCnt = 0, .cmd = 0, .addr = 0, .receiveCnt = 0, .receivedOctet = 0, .receiving = false };
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static t_mbusCommHandle mbusCommHandle = { .state = MBCS_IDLE, .retryCnt = 0, .cmd = 0, .addr = 0, .receiveCnt = 0, .receivedOctet = 0, .receiving = false };
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static void handleRequestEngine(void *handle);
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static void handleRequestEngine(void *handle);
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static void timeoutHandler(void *handle) {
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static void timeoutHandler(void *handle) {
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logMsg("mbc timeout");
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logMsg("mbc timeout");
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t_mbusCommHandle *localMbusCommHandle = (t_mbusCommHandle*) handle;
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t_mbusCommHandle *localMbusCommHandle = (t_mbusCommHandle*) handle;
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localMbusCommHandle->state = DISABLE_FRONTEND;
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localMbusCommHandle->state = MBCS_DISABLE_FRONTEND;
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localMbusCommHandle->receiving = false;
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localMbusCommHandle->receiving = false;
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handleRequestEngine(handle);
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handleRequestEngine(handle);
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}
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}
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@ -54,22 +67,25 @@ static void receiveNext(t_mbusCommHandle *localMbusCommHandle) {
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static void handleRequestEngine(void *handle) {
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static void handleRequestEngine(void *handle) {
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t_mbusCommHandle *localMbusCommHandle = (t_mbusCommHandle*) handle;
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t_mbusCommHandle *localMbusCommHandle = (t_mbusCommHandle*) handle;
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static uint8_t userdataIdx = 0;
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static uint8_t calculatedChksum = 0;
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switch (localMbusCommHandle->state) {
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switch (localMbusCommHandle->state) {
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case IDLE:
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case MBCS_IDLE:
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logMsg("hre state IDLE");
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logMsg("hre state IDLE");
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break;
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break;
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case SEND:
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case MBCS_SEND:
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logMsg("hre state SEND");
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logMsg("hre state SEND");
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localMbusCommHandle->sendBuf[0] = 0x10;
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localMbusCommHandle->sendBuf[0] = 0x10;
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localMbusCommHandle->sendBuf[1] = localMbusCommHandle->cmd;
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localMbusCommHandle->sendBuf[1] = localMbusCommHandle->cmd;
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localMbusCommHandle->sendBuf[2] = localMbusCommHandle->addr;
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localMbusCommHandle->sendBuf[2] = localMbusCommHandle->addr;
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localMbusCommHandle->sendBuf[3] = localMbusCommHandle->cmd + localMbusCommHandle->addr; // checksum
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localMbusCommHandle->sendBuf[3] = localMbusCommHandle->cmd + localMbusCommHandle->addr; // checksum
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localMbusCommHandle->sendBuf[4] = 0x16;
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localMbusCommHandle->sendBuf[4] = 0x16;
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localMbusCommHandle->state = SEND_CONT;
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localMbusCommHandle->state = MBCS_SEND_CONT;
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// no break !!
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// no break !!
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case SEND_CONT:
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case MBCS_SEND_CONT:
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logMsg("hre state SEND_CONT");
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logMsg("hre state SEND_CONT");
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signal(LED_RED, OFF);
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signal(LED_RED, OFF);
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if (! loopActive) {
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if (! loopActive) {
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@ -82,59 +98,177 @@ static void handleRequestEngine(void *handle) {
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HAL_UART_Transmit_IT(&mbusUart, localMbusCommHandle->sendBuf, 5);
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HAL_UART_Transmit_IT(&mbusUart, localMbusCommHandle->sendBuf, 5);
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// transition from here to SENDING_DONE is initiate by mbusCommTxCpltCallback
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// transition from here to SENDING_DONE is initiate by mbusCommTxCpltCallback
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// interrupt callback
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// interrupt callback
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localMbusCommHandle->state = SENDING_DONE;
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localMbusCommHandle->state = MBCS_SENDING_DONE;
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}
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}
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break;
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break;
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case SENDING_DONE:
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case MBCS_SENDING_DONE:
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logMsg("hre state SENDING_DONE");
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logMsg("hre state SENDING_DONE");
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localMbusCommHandle->state = ENABLE_FRONTEND;
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localMbusCommHandle->state = MBCS_ENABLE_FRONTEND;
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schAdd(handleRequestEngine, handle, 3, 0);
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schAdd(handleRequestEngine, handle, 3, 0);
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break;
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break;
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case ENABLE_FRONTEND:
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case MBCS_ENABLE_FRONTEND:
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logMsg("hre state ENABLE_FRONTEND");
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logMsg("hre state ENABLE_FRONTEND");
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frontendEnable();
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frontendEnable();
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schAdd(timeoutHandler, handle, 2500, 0);
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schAdd(timeoutHandler, handle, 2500, 0);
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localMbusCommHandle->state = RECEIVING;
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calculatedChksum = 0;
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localMbusCommHandle->receiveCnt = 0;
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userdataIdx = 0;
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localMbusCommHandle->state = MBCS_START1;
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receiveNext(localMbusCommHandle);
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receiveNext(localMbusCommHandle);
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break;
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break;
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case RECEIVING:
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case MBCS_START1:
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// logMsg("hre state RECEIVING");
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logMsg("hre state START1");
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logMsg("hre received octet: 0x%02x: 0x%02x", localMbusCommHandle->receiveCnt, localMbusCommHandle->receivedOctet);
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if (localMbusCommHandle->receivedOctet == 0x68) {
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localMbusCommHandle->receiveCnt += 1;
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localMbusCommHandle->frame.start1 = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_LENGTH1;
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} else {
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logMsg("hre err: invalid start1 symbol %02x", localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__START1;
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localMbusCommHandle->state = MBCS_ERROR;
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}
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receiveNext(localMbusCommHandle);
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receiveNext(localMbusCommHandle);
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break;
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break;
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case DISABLE_FRONTEND:
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case MBCS_LENGTH1:
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logMsg("hre state LENGTH1");
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if (localMbusCommHandle->receivedOctet <= 3) {
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logMsg("hre err: length to small %02x", localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__LENGTH1;
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localMbusCommHandle->state = MBCS_ERROR;
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} else {
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localMbusCommHandle->frame.length1 = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->frame.userdata = (uint8_t*) malloc(localMbusCommHandle->frame.length1 - 3);
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if (! localMbusCommHandle->frame.userdata) {
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logMsg("hre err: unable to allocate memory for userdata");
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localMbusCommHandle->result = MBCR_ERROR_OUT_OF_MEMORY__USERDATA;
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localMbusCommHandle->state = MBCS_ERROR;
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} else {
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localMbusCommHandle->state = MBCS_LENGTH2;
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}
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}
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_LENGTH2:
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logMsg("hre state LENGTH2");
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if (localMbusCommHandle->frame.length1 != localMbusCommHandle->receivedOctet) {
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logMsg("hre err: invalid length2 %02x vs. %02x", localMbusCommHandle->frame.length1, localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__LENGTH2;
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localMbusCommHandle->state = MBCS_ERROR;
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} else {
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localMbusCommHandle->frame.length2 = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_START2;
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}
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_START2:
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logMsg("hre state START2");
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if (localMbusCommHandle->receivedOctet == 0x68) {
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localMbusCommHandle->frame.start2 = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_C_FIELD;
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} else {
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logMsg("hre err: invalid start2 symbol %02x", localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__START2;
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localMbusCommHandle->state = MBCS_ERROR;
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}
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_C_FIELD:
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logMsg("hre state C_FIELD");
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localMbusCommHandle->frame.c = localMbusCommHandle->receivedOctet;
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calculatedChksum += localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_A_FIELD;
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_A_FIELD:
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logMsg("hre state A_FIELD");
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localMbusCommHandle->frame.a = localMbusCommHandle->receivedOctet;
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calculatedChksum += localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_CI_FIELD;
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_CI_FIELD:
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logMsg("hre state CI_FIELD");
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localMbusCommHandle->frame.ci = localMbusCommHandle->receivedOctet;
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calculatedChksum += localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_USERDATA;
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_USERDATA:
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logMsg("hre state USERDATA");
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localMbusCommHandle->frame.userdata[userdataIdx] = localMbusCommHandle->receivedOctet;
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calculatedChksum += localMbusCommHandle->receivedOctet;
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userdataIdx++;
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if (userdataIdx == (localMbusCommHandle->frame.length1 - 3)) {
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localMbusCommHandle->state = MBCS_CHKSUM;
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}
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_CHKSUM:
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logMsg("hre state CHKSUM");
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if (localMbusCommHandle->receivedOctet != calculatedChksum) {
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logMsg("hre err: invalid checksum %02x vs %02x", calculatedChksum, localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__INVALID_CHKSUM;
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localMbusCommHandle->state = MBCS_ERROR;
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} else {
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localMbusCommHandle->frame.chksum = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_STOP;
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}
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_STOP:
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logMsg("hre state STOP");
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if (localMbusCommHandle->receivedOctet == 0x16) {
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localMbusCommHandle->frame.stop = localMbusCommHandle->receivedOctet;
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localMbusCommHandle->state = MBCS_DONE;
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schAdd(handleRequestEngine, handle, 0, 0);
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} else {
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logMsg("hre err: invalid stop symbol %02x", localMbusCommHandle->receivedOctet);
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localMbusCommHandle->result = MBCR_ERROR_STATE_ENGINE__STOP;
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localMbusCommHandle->state = MBCS_ERROR;
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receiveNext(localMbusCommHandle);
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}
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break;
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case MBCS_DONE:
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logMsg("hre state DONE");
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localMbusCommHandle->result = MBCR_SUCCESS;
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localMbusCommHandle->state = MBCS_DISABLE_FRONTEND;
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schAdd(handleRequestEngine, handle, 0, 0);
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break;
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case MBCS_ERROR:
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logMsg("hre state ERROR");
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signal(LED_RED, ON);
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logMsg("hre err: already error, read the rest (now: %02x) until timeout", localMbusCommHandle->receivedOctet);
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receiveNext(localMbusCommHandle);
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break;
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case MBCS_DISABLE_FRONTEND:
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logMsg("hre state DISABLE_FRONTEND");
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logMsg("hre state DISABLE_FRONTEND");
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localMbusCommHandle->receiving = false;
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localMbusCommHandle->receiving = false;
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HAL_UART_AbortReceive(&mbusUart);
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HAL_UART_AbortReceive(&mbusUart);
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uint8_t kitchenSink[16];
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uint8_t kitchenSink[16];
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memset(kitchenSink, 0, 16);
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memset(kitchenSink, 0, 16);
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HAL_StatusTypeDef r = HAL_UART_Receive(&mbusUart, kitchenSink, 16, 1000);
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HAL_StatusTypeDef r = HAL_UART_Receive(&mbusUart, kitchenSink, 16, 1000);
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if (r == HAL_OK) {
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logMsg("hre abort, last receive result: %02x", r);
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logMsg("hre abort, still got some");
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// logMsg("hre abort, still got some: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
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// kitchenSink[0], kitchenSink[1], kitchenSink[2], kitchenSink[3],
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// kitchenSink[4], kitchenSink[5], kitchenSink[6], kitchenSink[7],
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// kitchenSink[8], kitchenSink[9], kitchenSink[10], kitchenSink[11],
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// kitchenSink[12], kitchenSink[13], kitchenSink[14], kitchenSink[15]);
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} else if (r == HAL_TIMEOUT) {
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logMsg("hre abort, run into timeout");
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} else {
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logMsg("hre abort, some other result: %02x", r);
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}
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frontendDisable();
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frontendDisable();
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localMbusCommHandle->state = IDLE;
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localMbusCommHandle->state = MBCS_IDLE;
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break;
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break;
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default:
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default:
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localMbusCommHandle->state = IDLE;
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localMbusCommHandle->state = MBCS_IDLE;
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break;
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break;
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}
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}
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}
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}
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@ -153,8 +287,8 @@ void mbusCommRxCpltCallback(UART_HandleTypeDef *huart) {
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}
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}
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void mbusCommRequest(uint8_t cmd, uint8_t addr) {
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void mbusCommRequest(uint8_t cmd, uint8_t addr) {
|
||||||
if (mbusCommHandle.state == IDLE) {
|
if (mbusCommHandle.state == MBCS_IDLE) {
|
||||||
mbusCommHandle.state = SEND;
|
mbusCommHandle.state = MBCS_SEND;
|
||||||
mbusCommHandle.retryCnt = 0;
|
mbusCommHandle.retryCnt = 0;
|
||||||
mbusCommHandle.cmd = cmd;
|
mbusCommHandle.cmd = cmd;
|
||||||
mbusCommHandle.addr = addr;
|
mbusCommHandle.addr = addr;
|
||||||
|
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Reference in New Issue
Block a user