Hi everyone!
I ported some project from NRFsdk 17.0.2 (all works fine) to Zephyr rtos and faced with issue - when set high speed uart (460800 - 921600) then some bytes (in the end of packet ) have lost when ESP8266 send data to nrf52840
When speed 115200 it works fine, but I need a high speed and NRFsdk project works fine so Zephyr should works fine too.
Implementation of uart I took from PERIPHERAL_UART example
nrf52840 side log
//all bytes received
[00:11:56.632,812] buf->len 24
[00:11:56.717,346] index 24
[00:11:56.717,346]
ab cd ef 17 03 02 02 a8 c0 0a 01 ff ff 00 ff a8 |........ ........
c0 01 01 a8 c0 01 01 c9 |........
[00:11:56.717,346] CRC c9 _ c9
[00:11:56.717,346] Scenario answer - 2 2
//one byte have lost
[00:11:58.534,484] buf->len 23
[00:11:58.617,431] index 23
[00:11:58.617,431]
ab cd ef 17 03 02 02 a8 c0 0a 01 ff ff 00 ff a8 |........ ........
c0 01 01 a8 c0 01 01 |.......
[00:11:58.617,462] CRC c9 _ 00
////////////////////////////////////
// 3 bytes have lost (should be 126)
[00:02:38.410,217] DCIBMM: buf->len 123
[00:02:38.489,532] DCIBMM: index 123
[00:02:38.489,562] DCIBMM:
ab cd ef 7d 03 01 01 a8 c0 cd 01 ff ff 00 ff a8 |...}.... ........
c0 01 01 a8 c0 01 01 65 72 6c 63 75 6f 65 73 31 |.......e rlcuoes1
72 00 00 00 00 00 00 65 72 6c 63 75 6f 65 73 31 |r......e rlcuoes1
72 00 32 00 00 00 00 77 71 72 65 79 74 6f 6e 6e |r.2....w qreytonn
6f 00 00 00 00 00 00 6f 43 6e 6e 63 65 69 74 75 |o......o Cnnceitu
46 6b 63 00 00 00 00 77 71 72 65 79 74 6f 6e 6e |Fkc....w qreytonn
6f 00 00 00 00 00 00 50 00 17 00 01 00 a8 c0 1f |o......P ........
01 ff ff 00 ff a8 c0 01 01 a8 c0 |........ ...
[00:02:38.489,593] DCIBMM: CRC 73 _ 00
// 2 bytes have lost (should be 126)
[00:02:40.409,820] buf->len 124
[00:02:40.489,654] index 124
[00:02:40.489,685]
ab cd ef 7d 03 01 01 a8 c0 cd 01 ff ff 00 ff a8 |...}.... ........
c0 01 01 a8 c0 01 01 65 72 6c 63 75 6f 65 73 31 |.......e rlcuoes1
72 00 00 00 00 00 00 65 72 6c 63 75 6f 65 73 31 |r......e rlcuoes1
72 00 32 00 00 00 00 77 71 72 65 79 74 6f 6e 6e |r.2....w qreytonn
6f 00 00 00 00 00 00 6f 43 6e 6e 63 65 69 74 75 |o......o Cnnceitu
46 6b 63 00 00 00 00 77 71 72 65 79 74 6f 6e 6e |Fkc....w qreytonn
6f 00 00 00 00 00 00 50 00 17 00 01 00 a8 c0 1f |o......P ........
01 ff ff 00 ff a8 c0 01 01 a8 c0 01 |........ ....
[00:02:40.489,715] CRC 74 _ 00
# prj conf CONFIG_UART_ASYNC_API=y CONFIG_NRFX_UART0=y CONFIG_SERIAL=y CONFIG_CONSOLE=n CONFIG_UART_CONSOLE=n CONFIG_NFCT_PINS_AS_GPIOS=y CONFIG_NEWLIB_LIBC=y CONFIG_CPLUSPLUS=y CONFIG_LIB_CPLUSPLUS=y #EXT WDT CONFIG_GPIO=n CONFIG_NRFX_GPIOTE=y # Enable the BLE stack with GATT Client configuration CONFIG_BT=y CONFIG_HEAP_MEM_POOL_SIZE=8192 CONFIG_BT_SETTINGS=y CONFIG_FLASH=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_FLASH_MAP=y CONFIG_SETTINGS=y CONFIG_SETTINGS_NONE=y CONFIG_BT_GATT_CACHING=n CONFIG_BT_GATT_CLIENT=y # Config logger CONFIG_LOG=y CONFIG_USE_SEGGER_RTT=y CONFIG_LOG_BACKEND_RTT=y CONFIG_LOG_BACKEND_UART=n CONFIG_ASSERT=n CONFIG_BT_USER_PHY_UPDATE=y CONFIG_BT_CTLR_TX_PWR_PLUS_8=y CONFIG_BT_CREATE_CONN_TIMEOUT=3 CONFIG_BT_ATT_PREPARE_COUNT=18 CONFIG_BT_MAX_CONN=18 CONFIG_BT_CTLR_ADV_DATA_LEN_MAX=247 CONFIG_BT_CTLR_ADVANCED_FEATURES=y CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=n CONFIG_BT_CTLR_CONN_RSSI=y CONFIG_BT_LL_SW_SPLIT=y CONFIG_BT_CTLR=y CONFIG_BT_HCI=y #PERIPHERAL CONFIG_BT_PERIPHERAL=y CONFIG_BT_DEVICE_NAME="RECLOUSER" CONFIG_BT_GATT_NOTIFY_MULTIPLE=y CONFIG_WATCHDOG=y CONFIG_NRFX_WDT=y CONFIG_NRFX_WDT0=y CONFIG_BT_GAP_PERIPHERAL_PREF_PARAMS=n CONFIG_BT_L2CAP_TX_MTU=259 CONFIG_BT_BUF_ACL_RX_SIZE=259 CONFIG_MAIN_STACK_SIZE=8192 #CLOCK_CONTROL CONFIG_CLOCK_CONTROL=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n CONFIG_NRFX_TIMER=y CONFIG_NRFX_TIMER4=y CONFIG_NRFX_SAADC=y CONFIG_BOARD_ENABLE_DCDC=n CONFIG_NRFX_PPI=y ### Enable SMP server ### # FOR NCS auto make image CONFIG_MCUMGR_SMP_BT=y CONFIG_MCUMGR_SMP_BT_AUTHEN=n CONFIG_MCUMGR_CMD_IMG_MGMT=y CONFIG_MCUMGR_CMD_OS_MGMT=y CONFIG_MCUMGR=y CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=8192 #CONFIG_BOOTLOADER_MCUBOOT=y #CONFIG_MCUBOOT_IMAGE_VERSION="0.0.6"
RX uart handle
#define UART_BUF_SIZE 260
#define UART_WAIT_FOR_BUF_DELAY K_MSEC(100)
#define UART_RX_TIMEOUT 5
#define UART_WAIT_FOR_RX 5
case UART_RX_RDY:
buf = CONTAINER_OF(evt->data.rx.buf, struct uart_data_t, data);
buf->len = evt->data.rx.len;
current_buf = evt->data.rx.buf;
buf_release = true;
uart_rx_disable(uart);
memcpy(data_array, evt->data.rx.buf, buf->len);
uart_rx_index = buf->len;
uart_rx_enable(uart, buf->data, sizeof(buf->data), UART_WAIT_FOR_RX);
k_free(buf);
break;
uart init
static int uart_init(void)
{
int err;
struct uart_data_t *rx;
uart = device_get_binding(DT_LABEL(DT_NODELABEL(uart0)));
if (!uart) {
LOG_ERR("UART binding failed");
return -ENXIO;
}
const struct uart_config uart_cfg = {
.baudrate = uart_speed_preset,
.parity = UART_CFG_PARITY_NONE,
.stop_bits = UART_CFG_STOP_BITS_1,
.data_bits = UART_CFG_DATA_BITS_8,
.flow_ctrl = UART_CFG_FLOW_CTRL_NONE
};
uart_configure(uart, &uart_cfg);
rx = k_malloc(sizeof(*rx));
if (rx) {
rx->len = 0;
} else {
return -ENOMEM;
}
err = uart_callback_set(uart, uart_cb, NULL);
if (err) {
return err;
}
return uart_rx_enable(uart, rx->data, sizeof(rx->data), UART_RX_TIMEOUT);
}
