UM0629 User Manual. STM8L101-EVAL board. evaluation board. Introduction

Transcription

1 UM069 User Manual STM8L0-EVAL evaluation board Introduction The STM8L0-EVAL is composed of two boards: An STM8L/L motherboard called MB709 which includes all peripherals which are connected to the MCU on the daughterboard. The motherboard connects to the daughterboard via two 6-pin connectors. An STM8L daughterboard called MB70 which has an STM8L0 MCU. The motherboard and daughterboard are a complete development platform for STMicroelectronic's STM8L0 microcontroller with comparator, IC, SPI, USART and SWIM debugging support. The full range of hardware features on the STM8L0-EVAL helps you to evaluate all peripherals (MicroSD card TM, USART, EEPROM, LCD, for example) and develop your own applications. Figure. STM8L0-EVAL board November 009 Doc ID 5 Rev /6

2 Contents UM069 Contents Overview Features Demonstration software Order code Hardware layout and configuration STM8L/L motherboard Power supply Reset source Audio IC EEPROM RS MicroSD card Analog input Development and debug support CN5 and CN Display and input devices Bi-color LED Economic measurement and potentiometer RV MicroSD connector CN Daughterboard extension connectors CN and CN SWIM connectors CN5 and CN RS- connector CN Audio jack CN Power connector CN STM8L daughterboard Power Extension connector CN and CN Schematics STM8L/L motherboard STM8L-DB daughterboard schematic /6 Doc ID 5 Rev

3 UM069 Contents Appendix A STM8L0-EVAL I/O assignment Revision history Doc ID 5 Rev /6

4 Overview UM069 Overview. Features 5 V power jack supply Audio play MicroSD card TM 6 Kbit IC EEPROM One channel of RS- communication Bi-color LED Economic analog voltage measurement based on comparator SWIM debug support x dot-matrix serial interface LCD module Joystick with -direction control and selector Reset and User button LEDs Extension connector for daughterboard One 0 K potentiometer RoHS compliant. Demonstration software Demonstration software is preloaded in the board s Flash memory for easy demonstration of device peripherals in stand-alone mode. For more information and to download the latest version available, refer to STM8L0-EVAL demonstration firmware available on web: Order code To order the STM8L0K evaluation board, use the order code STM8L0-EVAL. /6 Doc ID 5 Rev

5 UM069 Overview. Hardware layout and configuration The STM8L0-EVAL evaluation board is designed around the STM8L0KT6 in an LQFP package. Figure illustrates the connections between the daughterboard and the peripherals on the motherboard (LCD, IC EEPROM, USART, audio and MicroSD card). Figure and Figure help you to locate these features on the actual evaluation board. Figure. Hardware block diagram IC EEPROM IC ADC SWIM connector SWIM PWM BEEP Audio circuit Bi-color LED LED s Joystick Push button GPIO s STM8L/L-MB USART SPI RS transceiver Level translator RS connector MicroSD card LCD BNC connector Potentiometer STice connector ADC CMP GPIO s Compa rator Economic Measurement.8 to.v regulator 5V power jack.v regulator Extension connector STM8L/L-MB (MB709) STM8L0 STM8L-DB MCU STM8L-DB (MB70) Doc ID 5 Rev 5/6

6 Overview UM069 Figure. STM8L/L motherboard layout CN, CN daughterboard connectors CN6 SWIM (ERNI cable alternative) CN5 SWIM RV Potentiometer CN8 USART U Dot-matrix LCD CN Micro SD card CN9 Audio jack CN0 5V power RV adjustment B RESET U7 Joystick B KEY 6/6 Doc ID 5 Rev

7 UM069 Overview Figure. STM8L daughterboard layout CN, CN motherboard connector STM8L0 MCU in LQFP package soldered directly onto the board and footprint for socket (ref ENPLAS OTQ ) is present on the board Doc ID 5 Rev 7/6

8 STM8L/L motherboard UM069 STM8L/L motherboard This motherboard is designed to work with an STM8L daughterboard.. Power supply The motherboard is designed to be powered by a 5 V DC power supply and to be protected from a wrong power plug-in event by PolyZen Inc. (auto rearmable fuse) U. It is possible to configure the evaluation board to provide 5 V power to the daughterboard through the daughterboard connector. The motherboard is powered by a 5 V DC power adapter connected to CN0, the power jack on the board (PSU on silk screen for power supply unit). 5 V DC power is provided to the daughterboard through an extension connector and can be set by jumper JP (DTB for daughterboard on silk-screen). can be selected by setting jumper JP and is connected to the daughterboard directly through the daughterboard connector. The power supply is configured by setting the jumpers JP and JP as described in Table. The LED LD6 is lit when the motherboard is powered correctly. JP is no longer used. Table. Power related jumpers Jumper Description Setting JP JP 5 V power from power supply jack (CN0) is connected to the motherboard when JP is set as shown to the right: (default setting). 5 V power from power supply jack (CN0) is connected to the daughterboard when JP is set as shown to the right: In this case the motherboard and daughterboard are powered by a 5 V power supply. is powered by a fixed. V power supply when JP is set as shown to the right: (default setting). is powered by a variable power supply from.8 V to. V, adjusted by potentiometer RV (bottom left of the board), when JP is set as shown to the right: PSU DTB PSU DTB 8/6 Doc ID 5 Rev

9 UM069 STM8L/L motherboard. Reset source The reset signal of the motherboard is low active. Reset sources include: Reset button B. Debugging tools from connectors CN5, CN6. The reset pin PA of the STM8L0 is either connected to the reset button B or to GND by the setting of jumper JP: Table. Reset related jumpers Jumper Description Setting JP PA is connected to GND when JP is set as shown to the right: This configuration is reserved for internal use only. PA is connected to Reset button when JP is set as shown to the right: (default setting). This jumper position is called Alone on the silk-screen.. Audio The motherboard supports both audio recording and playback, but audio recording components (U microphone and U amplifier) cannot be used with the STM8L0. The speaker can be disabled or enabled by the setting of jumper JP0. Audio volume can be adjusted using the potentiometer RV. Table. Audio related jumpers Jumper Description Setting JP0 JP9 Audio power amplifier TS87 is forced on standby mode when JP0 is not fitted. Default setting: fitted. Either beeper or PWM output can be selected as a source of speaker by setting jumper JP9. The beeper is connected to speaker when JP9 is set as shown to the right: (Beep position on the silk-screen). The PWM output is connected to speaker when JP9 is set as shown to the right: (PSW position on the silk-screen) (default setting). Doc ID 5 Rev 9/6

10 STM8L/L motherboard UM069. IC EEPROM A 6 Kbit IC EEPROM is connected to the IC port of the STM8L0. Write protection can be enabled by the setting of jumper JP8. Table. IC EEPROM related jumpers Jumper JP8 Description IC EEPROM U6 is protected from write operation when JP8 is not fitted. Default setting: Fitted.5 RS- One D-type 9-pin RS- connector CN8 is available on the motherboard. RS- interface behavior is not guaranteed when the MCU is powered by an adjustable voltage lower than V. Note: To communicate with an RS- port on a PC, a 9-pin straight RS- cable (direct pin to pin connection) is needed because: On CN8 the RX signal is connected on pin and the TX data on pin, On the PC side the RX signal is generally on pin and the TX signal on pin. This standard 9-pin straight RS- cable is not provided with the board. Refer to Section.5 for details on RS- connector pinout..6 MicroSD card The GByte (or more) MicroSD card connected to the SPI of the STM8L0 through a voltage level translator U (shared with LCD) is available on the board. MicroSD card chip select is managed by standard I/O port PB..7 Analog input The BNC connector footprint present on the board (CN7) cannot be used as it is not connected to the MCU..8 Development and debug support CN5 and CN6 The two debug connectors are available on the motherboard. CN5, ERNI -pin connector (reference 8697 or 07) for SWIM debugging. It fits with ERNI connectors provided with standard tools. CN6,.5 mm pitch low-cost -pin connector for SWIM debugging. 0/6 Doc ID 5 Rev

11 UM069 STM8L/L motherboard.9 Display and input devices Display devices available are: x dot-matrix serial interface LCD (U) general purpose LED's (LD,,,5) Input devices available are: -direction joystick selection key general purpose button (B) Table 5. x dot matrix LCD U Pin on U Description Pin connection Vss GND Vcc +V VO - CLK PB5 5 SID PB6 6 CS PD 7 A +5V 8 K GND.0 Bi-color LED A bi-color LED is connected to PB0 through a voltage translator which guarantees that the bi-color LED works when the STM8L0 is powered by an adjustable voltage from.8 V to. V.. Economic measurement and potentiometer RV The economic measurement solution is demonstrated based on the internal comparator inside the STM8L0 and potentiometer RV. As shown in Figure 5, the voltage divided by resister bridge R0 and R can be measured by using an internal comparator of the STM8L, with Vref connected to channel of the comparator and an RC charge circuit connected to the COM channel of the comparator. To measure the voltage Vin from the potentiometer:. Compare Vref with the voltage on C8 which is charged by a series of pulses generated by PC.. Record pulse number PN_Vref when the voltage on C8 reaches voltage reference Vref.. Another charge pulse PN_Vin can be obtained with voltage connected to CH also like PN_Vref.. The voltage Vin can be calculated based on both numbers PN_Vref and PN_Vin. Doc ID 5 Rev /6

12 STM8L/L motherboard UM069 Figure 5. Voltage measurement using internal comparator Table 6. Potentiometer RV related jumpers Jumper Description Setting JP RV is connected to PD as one input of the internal comparator when JP is set as shown to the right: JP position is called Comp_PD on the silk-screen. RV is not connected when JP is set as shown to the right: (default setting). JP position is called ADC_PE0 on the silk-screen.. MicroSD connector CN Figure 6. MicroSD connector CN viewed from front /6 Doc ID 5 Rev

13 UM069 STM8L/L motherboard Table 7. MicroSD connector CN Pin number Description Pin number Description Reserved 5 SCLK/PB5 CS/PB 6 Vss/GND DI/PB6 7 DO/PB7 VDD 8 Reserved 9 GND 0 Not used. Daughterboard extension connectors CN and CN Two 6-pin male headers CN and CN can be used to connect the daughterboard to the motherboard. All GPI/Os are available on it. Please refer to Table 8 and Table 9 for pin-out definition. Table 8. Daughterboard extension connector CN Pin number Description Pin number Description GND PC PC5 PC6 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 PA0 0 GND PA PA Reserved PA 5 Reserved 6 Reserved 7 PA 8 Reserved 9 GND 0 PA5 Reserved PA6 Reserved Reserved 5 PD0 6 Reserved 7 PD 8 PD 9 PD 0 GND NC NC PB0 PB 5 PB 6 PB Doc ID 5 Rev /6

14 STM8L/L motherboard UM069 Table 9. Daughterboard extension connector CN Pin number Description Pin number Description GND PC PC PC 5 PC0 6 Reserved 7 Reserved 8 Reserved 9 Reserved 0 GND RESET# Reserved Reserved Reserved 5 PD7 6 Reserved 7 PD5 8 PD6 9 D5V 0 PD NC PB7 NC 5 PB6 6 PB5 7 PB 8 Reserved 9 Reserved 0 GND Reserved Reserved Reserved Reserved 5 Reserved 6 Reserved. SWIM connectors CN5 and CN6 CN6 is a low cost.5 mm pitch connector to be used by customers who do not have the ERNI cable. Figure 7. SWIM debugging connector CN5 viewed from above PCB Table 0. SWIM debugging connectors CN5 and CN6 Pin number Description Pin number Description VDD PA0 GND RESET# /6 Doc ID 5 Rev

15 UM069 STM8L/L motherboard.5 RS- connector CN8 Figure 8. RS- connector CN8 viewed from front Table. RS- connector CN8 Pin number Description Pin number Description NC 6 Connect to Pin USART_RXD/PC 7 Connect to Pin 8 USART_TXD/PC 8 Connect to Pin 7 Connect to Pin 6 9 NC 5 GND.6 Audio jack CN9 A.5 mm mono audio jack CN9 is available on the motherboard. The speaker U9 is bypassed when an earphone is plugged into CN9 (CN9 is compatible with audio plug NYS from NEUTRIK)..7 Power connector CN0 The motherboard can be powered from a DC 5 V power supply via the external power supply jack CN0 shown in Figure 9. The central pin of CN0 must be positive. Figure 9. Power supply connector CN0 viewed from front Doc ID 5 Rev 5/6

16 STM8L daughterboard UM069 STM8L daughterboard. Power The STM8L0 MCU is powered by from the motherboard through an extension connector on the board. It is enabled by setting the jumper JP as described in Table. Table. Jumper Power related jumper* Description JP Enables consumption measurement of VDD when the jumper is removed and replaced by an ammeter. Default setting: Fitted.. Extension connector CN and CN The 6-pin connectors CN and CN are designed to be connected to the motherboard. The pin-out definition is the same as CN and CN on the motherboard which is described in Section.. Warning: On MB70 PCB rev B, CN (pin 6) silk-screen PB5 is missing 6/6 Doc ID 5 Rev

17 Doc ID 5 Rev 7/6 Schematics. STM8L/L motherboard Figure 0. STM8L motherboard schematic U_Audio Audio.SchDoc MIC_OUT Audio_PWM BEEP U_LCD_MicroSD LCD_MicroSD.SchDoc SPI_MISO SPI_MOSI SPI_SCK MicroSD_CS LCD_CS SDcard_detect U_Power Power.SchDoc U_MCU MCU.SchDoc MIC_OUT Audio_PWM BEEP SPI_MISO SPI_MOSI SPI_SCK MicroSD_CS LCD_CS SDcard_detect IC_SLK IC_SDA LED LED LED LED BiD_LED USART_RX USART_TX User_Button JOY_UP JOY_RIGHT JOY_LEFT JOY_DOWN JOY_SEL Potentiometer BNC U_Peripherals Peripherals.SchDoc IC_SLK IC_SDA LED LED LED LED BiD_LED USART_RX USART_TX User_Button JOY_UP JOY_RIGHT JOY_LEFT JOY_DOWN JOY_SEL Potentiometer BNC STMicroelectronics Title: STM8L/L-MB Number: MB709 Rev: A.(PCB.SCH) Date: //009 Sheet of 6 UM069 Schematics

18 8/6 Doc ID 5 Rev Figure. STM8L motherboard MCU C9 C0 0pF 0pF X Not Fitted PA PA R7 60PA PG PG5 PG6 PG7 PA JOY_DOWN PA5 User_Button PA6 VDD VDDA PG0 PG PG BNC PG MIC_OUT PD0 Audio_PWM PD LCD_CS PD PD PB0 BiD_LED PB JOY_LEFT PB JOY_RIGHT PB JOY_UP PE0 PE PE PE PE PE5 PA0 RESET# R9 0 R5 0K JP RESET# VDD VDDA B L RESET C5 BEAD 00nF JP C C Not Fitted 0uF 0nF U PA0 PA/NRST PA0/SWIM/BEEP/IR_TIM 6 6 PH PA/HSE_IN PH 6 PH PA/HSE_OUT PH 6 PH0 PG PH PC7 PG5 PC PC6 PG6 PC6/LSE_OUT 7 58 PC5 PG7 PC5/LSE_IN 8 57 PC PA/ADC_IN5/TIM_BKIN PC/USART_CK/CCO 9 56 PC PA5/ADC_IN/TIM_BKIN PC/USART_TX 0 55 PC PA6/ADC_IN/COMP_REF PC/USART_RX 5 PC VSSA PC/IC_SCL 5 PC0 VSS PC0/IC_SDA 5 PF7 VDD PF7 5 PF6 VDDA PF PF5 PG0/REF+ PF5 6 9 PF PG/REF- PF 7 8 PF PG/ADC_IN PF 8 7 PF PG/ADC_IN PF 9 6 PF PD0/TIM_CH/COMP_CH PF 0 5 PF0 PD/TIM_TRIG/COMP_CH PF0 PD7 PD/COMP_CH PD7 PD6 PD/COMP_CH PD6 PD5 PB0/TIM_CH/COMP_CH PD5 PD PB/TIM_CH/COMP_CH PD 5 0 PB/ TIM_CH/COMP_CH VDD 6 9 PB/TIM_TRIG/COMP_CH VSS 7 8 PB7 PE0/ADC_IN PB7/SPI_MISO 8 7 PB6 PE/ADC_IN PB6/SPI_MOSI 9 6 PB5 PE/ADC_IN0 PB5/SPI_SCK 0 5 PB PE PB/SPI_NSS PE7 PE PE7 PE6 PE5 PE6 Not Fitted Potentiometer CN5 +V JP R R 9K 8K 07 PD SWIM connector CN6 R K PC R PA6 0K C8 00nF ND(.5mm) SWIM connector VDD C6 C7 00nF 00nF JP7 solder bridge BEEP JP6 USART_TX solder bridge USART_RX IC_SLK X IC_SDA Not Fitted SDcard_detect LED JOY_SEL LED LED LED VDD SPI_MISO SPI_MOSI SPI_SCK MicroSD_CS PE0 R0 5K PD Comparator EX_PC6 EX_PC5 MCU SWIM connector Economic measurement C 0pF C 0pF CN PC EX_PC5 EX_PC6 PC7 PH0 5 6 PH PH 7 8 PA0 9 0 PA PG PG6 PG5 5 6 PA PG7 7 8 PA5 9 0 PG0 PA6 PG PG PD0 PG 5 6 PD PD 7 8 PD 9 0 PB0 PB PB PB 5 6 Header 8X on the left CN PC PC PC PC0 PF7 5 6 PF6 PF5 7 8 PF 9 0 RESET# PF R8 80 PF PF PD7 PF0 5 6 PD5 PD6 7 8 PD D5V 9 0 PB7 PB6 PB5 5 6 PB PE7 7 8 PE6 9 0 PE PE5 PE PE PE0 PE 5 6 Header 8X on the right Exension connector JP JP5 STMicroelectronics Title: PA PA VDD RESET# PA PG5 PG7 PA5 PG0 PG PD0 PD PB0 PB PE0 PE PE PE6 PB PB6 PD PD6 PF0 PF PF PF6 PC0 PC PC EX_PC6 PH0 PH STM8L/L-MB MCU CN A.(PCB.SCH) Date:0//009 Number: MB709 Rev: Sheet of 6 G G G G Not Fitted G G G G PA PG PG6 PA PA6 PG PG PD PD PB PB PE PE PE5 PE7 PB5 PB7 PD5 PD7 PF PF PF5 PF7 PC PC STice connector EX_PC5 PC7 PH PA0 VDDA VDD Schematics UM069

19 Doc ID 5 Rev 9/6 Figure. MicroSD_CS LCD_CS SPI_MISO STM8L motherboard LCD and SD R5 K R 0 R5 0 R6 do not fit +V R7 K7 T 90 SPI_SCK SPI_MOSI C 00nF U VL VCC IOVL_ IOVCC_ IOVL_ IOVCC_ IOVL_ IOVCC_ 5 IOVL_ IOVCC_ 6 NC NC 7 GND THREE_STATE MAX78EEUD C +V 00nF R55 do not fit R69 0 +V R do not fit +V R do not fit CN C +V 00nF R 0 +5V STMicroelectronics Title: SW SW U Vss Vcc VO CLK 5 SID 6 CS 7 A 8 K 0 9 PJS (SMS06FF or SMS8FF) MicroSD card HXM0-GB LCD SDcard_detect STM8L/L-MB LCD&SD Number: MB709 Rev: A.(PCB.SCH) Date: //009 UM069 Schematics

20 0/6 Doc ID 5 Rev Figure. USART_TX USART_RX BNC Potentiometer STM8L motherboard peripherals R9 0 R8 C 0.uF C5 0.uF C6 0.uF CN7 5 VB (do not fit) BNC connector R 0 RV 0K Potentiometer 0K U8 V+ C+ Tin Rout Tin Rout V- STECTR VCC C- C- C+ Tout Rin Tout Rin GND User_Button C 0.uF R0 0 C7 00nF R K7 B USER R 00 C5 00nF User Button do not fit R V CN8 DB9-male USART LD Red LD Green LD Orange LD5 Blue RS R7 600 R8 600 R9 600 R0 600 JOY_SEL JOY_DOWN JOY_LEFT JOY_RIGHT JOY_UP LED LED LED LED LEDs U 6 VCCA VCCB 5 GND DIR BiD_LED A B R9 SN7LVCT5DCKT 0K U6 E0 VCC E WC E SCL VSS SDA R 0 R5 0 R6 0 R7 0 R8 0 MC6-RMN6 STMicroelectronics Title: C6 00nF R5 0K JP8 R0 0K R 0K R 0K R 0K R 0K C8 00nF C9 00nF C0 00nF C 00nF C 00nF R V R R K7 K7 STM8L/L-MB Peripherals Number: MB709 Rev: A.(PCB.SCH) Date: //009 Sheet of 6 U7 5 COMMON 6 Selection DWON LEFT RIGHT UP MT008-A LD L-7EGW-SS R 0 R 0 IC_SLK IC_SDA +5V Joystick R6 00 R6 00 Bi-color LED EEPROM Schematics UM069

21 Doc ID 5 Rev /6 Figure. U KECG70TBL Audio_PWM BEEP STM8L/L motherboard audio R5.K C nf C9 R5 00 0uF R56 K R59.K C7 7pF C8 00nF C0.7uF TP Audio RV 50K JP9 R7 0 R60 00K R6 5K R6 00K TP MIC+ R6 8K C.uF R58 0(don't solder) R6 680 C.7uF RV do not fit JP0 C.uF +V R57 K C9 R50 0K Speaker 5 80pF R65 8K U TS6CLT Microphone C0 C5.uF TS87IST 70pF R5 7K Uout Vout VCC GND TP MIC_OUT R8 0 R9 0 C8 do not fit STMicroelectronics Title: U0 Standby Vin- Vin+ Bypass Speaker- CN9 ST-6 Speaker+ C7 00nF +V 0 C6 00uF MIC_OUT STM8L/L-MB Audio U9 KDMG Number: MB709 Rev: A.(PCB.SCH) Date: //009 Sheet UM069 Schematics

22 /6 Doc ID 5 Rev Figure 5. CN0 DC-0B E5V STM8L motherboard power D5V U ZEN056V0ALS JP Header X Z SMAJ5.0A-TR +5V TP6 5V C 00nF R66 K LD6 red U5 SV SG CV CG CG CG BNX TP7 Ground C 0uF E5V TP U +V +5V LD086DM +V Vin Vout C7 C5 C8 70uF 0uF 00nF +5V GND U6 LD086DM Vin Vout ADJ R68 75 RV J-0 R67 65 STMicroelectronics Title: C9 00nF TP5 VCC_ADJ C6 0uF VCC_ADJ Number: MB709 Rev: A.(PCB.SCH) Date: 9//009 JP STM8L/L-MB Power Schematics UM069

23 Doc ID 5 Rev /6. STM8L-DB daughterboard schematic Figure 6. VDD JP Daughterboard schematic C 00nF PA PA PA PA PA5 PA6 PD0 PD PD PD PB0 PB PB PB PC5 PA0 PA PA PD0 PD PD PB0 PB U PA/NRST PA PA PA/TIM_BKIN 5 PA5/TIM_BKIN 6 PA6/COMP_REF 7 VSS 8 VDD 9 PD0/TIM_CH/COMP_CH 0 PD/TIM_TRIG/COMP_CH PD/COMP_CH PD/COMP_CH PB0/TIM_CH/COMP_CH PB/TIM_CH/COMP_CH 5 PB/ TIM_CH/COMP_CH 6 PB/TIM_TRIG/COMP_CH STM8L0KT QFP and OTQ double footprint CN Left SSQ-8-0-G-D PC PC6 PA PA PA5 PA6 PD PB PB RESET# R 80 PD7 PD5 Extension connector PC PC0 D5V PB6 PB PA0/SWIM/BEEP/IR_TIM PC6 0 PC5 9 PC/USART_CK/CCO 8 PC/USART_TX 7 PC/USART_RX 6 PC/IC_SCL 5 PC0/IC_SDA PD7 PD6 PD5 PD 0 PB7/SPI_MISO 9 PB6/SPI_MOSI 8 PB5/SPI_SCK 7 PB/SPI_NSS STMicroelectronics CN Right SSQ-8-0-G-D PC PC PD6 PD PB7 PB5 PA0 PC6 PC5 PC PC PC PC PC0 PD7 PD6 PD5 PD PB7 PB6 PB5 PB Title: RESET# PA PA5 PD0 PD PB0 PB PB PB6 PD PD6 PC0 PC PC PC6 STM8L-DB CN QTH-00-0-L-D-A GND GND GND GND pins Connector for STICE PA PA PA6 PD PD PB PB PB5 PB7 PD5 PD7 PC PC PC5 PA0 VDD Number: MB70 Rev: B.(PCB.SCH) Date: 0//009 Sheet of UM069 Schematics

24 STM8L0-EVAL I/O assignment UM069 Appendix A STM8L0-EVAL I/O assignment Table. STM8L0 pin number STM8L0-EVAL input and output assignment Pin name STM8L0-EVAL pin assignment STM8L0 pin number Pin name STM8L0-EVAL pin assignment PA - NRESET RESET 7 PB SD_card_CS PA Unused 8 PB5 SPI_SCK PA Unused 9 PB6 SPI_MOSI PA Joystick down 0 PB7 SPI_MISO 5 PA5 User button PD LED 6 PA6 COMP_REF PD5 LED 7 VSS GND PD6 LED 8 VDD VDD PD7 Joystick select 9 PD0 Audio PWM_out 5 PC0 I²C_SDA_EP 0 PD LCD_CS 6 PC I²C_SCL_EP PD CMP_Potentiometer 7 PC USART_RX PD CMP_VREF 8 PC USART_TX PB0 Bi-color LED 9 PC VREF_CTRL PB Joystick left 0 5 PB Joystick right 6 PB Joystick up PA0 SWIM / Beep /6 Doc ID 5 Rev

25 UM069 Revision history 5 Revision history Table. Document revision history Date Revision Changes 9-Jan-009 Initial release. 06-Nov-009 Removed STice and IrDA functionality. Modified, Section.5, Section.6 Table, Table, Table 6, Table, Table, Figure, Figure, Figure all schematics and Appendix A. Doc ID 5 Rev 5/6

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