• LPC1788 - IAP erase sector always returns BUSY
    Hello, I'm trying to erase some sectors of the internal flash using IAP but for a reason I can not figure out it is not working. I'm preparing the sectors and this IAP command suceeds but when...
  • I2C Busy Busy detection
    Hello, I'm implementing I2C Multi-Master/Slave mode handling in the LPC2132 chip. I have few queries about the LPC213x's I2C controller operations. The user manual says that if the is SI bit (serial...
  • Hard fault after erase sector
    Hi, I'm working on LPC1115, I'm trying to write my boot loader code. The IAP command works well, but if I erase 3 sector (1 to 3) the uP continue working, but after reset it goes to hard fault handler...
  • WARNING C500 (PORT IS BUSY)
    Dear all, When I type, C:/Keil/C51/BIN/C51 foo.c DB OE NOCOND CD SB WL(1) NOAM INCDIR(a long list of include dir;) Error Message: C51 COMPILER V7.20 - SN: C1S7P-60655E COPYRIGHT KEIL ELEKTRONIK...
  • sending busy (NAK) to host for usb
    I'm using the MDK Middleware library with stm32f2xx_hal and I need to NAK to host. I see a reference to usbdRequestNAK but unsure how this can be used. I need to decorate my NAK around my emulated eeprom...